fix: increase --help output width from 80 to 120

[U3erKa]

I noticed that "command-line-usage" has print width of 80 by default, and it does not increase when the text would fit in the terminal window. Also, the descpition of --lang flag shifts layout the most, so I replaced list of languages with LANG, since LANG is already defined in synopsis. Additionally, I added --src-lang to synopsis

Before

Synopsis

$ quicktype [--lang LANG] [--out FILE] FILE|URL ...                           
                                                                              
LANG ... cs|go|rs|cr|cjson|c++|objc|java|ts|js|javascript-prop-               
types|flow|swift|scala3|Smithy|kotlin|elm|schema|ruby|dart|py|pike|haskell|typescript- 
zod|typescript-effect-schema|php                                              

Description

Given JSON sample data, quicktype outputs code for working with that data in  
C#, Go, Rust, Crystal, C (cJSON), C++, Objective-C, Java, TypeScript,         
JavaScript, JavaScript PropTypes, Flow, Swift, Scala3, Smithy, Kotlin, Elm,   
JSON Schema, Ruby, Dart, Python, Pike, Haskell, TypeScript Zod, TypeScript    
Effect Schema, PHP.                                                           

Options

-o, --out FILE                                                                          The 
                                                                                       output 
                                                                                       file. 
                                                                                       Determines 
                                                                                       --lang 
                                                                                       and 
                                                                                       --top-level. 
-t, --top-level NAME                                                                    The 
                                                                                       name 
                                                                                       for 
                                                                                       the 
                                                                                       top 
                                                                                       level 
                                                                                       type. 
-l, --lang cs|go|rs|cr|cjson|c++|objc|java|ts|js|javascript-prop-                       The 
types|flow|swift|scala3|Smithy|kotlin|elm|schema|ruby|dart|py|pike|haskell|typescript-  target 
zod|typescript-effect-schema|php                                                        language. 
-s, --src-lang json|schema|graphql|postman|typescript                                   The 
                                                                                       source 
                                                                                       language 
                                                                                       (default 
                                                                                       is 
                                                                                       json). 
--src FILE|URL|DIRECTORY                                                                The 
                                                                                       file, 
                                                                                       url, 
                                                                                       or 
                                                                                       data 
                                                                                       directory 
                                                                                       to 
                                                                                       type. 
--src-urls FILE                                                                         Tracery 
                                                                                       grammar 
                                                                                       describing 
                                                                                       URLs 
                                                                                       to 
                                                                                       crawl. 
--no-maps                                                                               Don't 
                                                                                       infer 
                                                                                       maps, 
                                                                                       always 
                                                                                       use 
                                                                                       classes. 
--no-enums                                                                              Don't 
                                                                                       infer 
                                                                                       enums, 
                                                                                       always 
                                                                                       use 
                                                                                       strings. 
--no-uuids                                                                              Don't 
                                                                                       convert 
                                                                                       UUIDs 
                                                                                       to 
                                                                                       UUID 
                                                                                       objects. 
--no-date-times                                                                         Don't 
                                                                                       infer 
                                                                                       dates 
                                                                                       or 
                                                                                       times. 
--no-integer-strings                                                                    Don't 
                                                                                       convert 
                                                                                       stringified 
                                                                                       integers 
                                                                                       to 
                                                                                       integers. 
--no-boolean-strings                                                                    Don't 
                                                                                       convert 
                                                                                       stringified 
                                                                                       booleans 
                                                                                       to 
                                                                                       booleans. 
--no-combine-classes                                                                    Don't 
                                                                                       combine 
                                                                                       similar 
                                                                                       classes. 
--no-ignore-json-refs                                                                   Treat 
                                                                                       $ref 
                                                                                       as 
                                                                                       a 
                                                                                       reference 
                                                                                       in 
                                                                                       JSON. 
--graphql-schema FILE                                                                   GraphQL 
                                                                                       introspection 
                                                                                       file. 
--graphql-introspect URL                                                                Introspect 
                                                                                       GraphQL 
                                                                                       schema 
                                                                                       from 
                                                                                       a 
                                                                                       server. 
--http-method METHOD                                                                    HTTP 
                                                                                       method 
                                                                                       to 
                                                                                       use 
                                                                                       for 
                                                                                       the 
                                                                                       GraphQL 
                                                                                       introspection 
                                                                                       query. 
--http-header HEADER                                                                    Header(s) 
                                                                                       to 
                                                                                       attach 
                                                                                       to 
                                                                                       all 
                                                                                       HTTP 
                                                                                       requests, 
                                                                                       including 
                                                                                       the 
                                                                                       GraphQL 
                                                                                       introspection 
                                                                                       query. 
-S, --additional-schema FILE                                                            Register 
                                                                                       the 
                                                                                       $id's 
                                                                                       of 
                                                                                       additional 
                                                                                       JSON 
                                                                                       Schema 
                                                                                       files. 
--alphabetize-properties                                                                Alphabetize 
                                                                                       order 
                                                                                       of 
                                                                                       class 
                                                                                       properties. 
--all-properties-optional                                                               Make 
                                                                                       all 
                                                                                       class 
                                                                                       properties 
                                                                                       optional. 
--quiet                                                                                 Don't 
                                                                                       show 
                                                                                       issues 
                                                                                       in 
                                                                                       the 
                                                                                       generated 
                                                                                       code. 
--debug OPTIONS or all                                                                  Comma 
                                                                                       separated 
                                                                                       debug 
                                                                                       options: 
                                                                                       print- 
                                                                                       graph, 
                                                                                       print- 
                                                                                       reconstitution, 
                                                                                       print- 
                                                                                       gather- 
                                                                                       names, 
                                                                                       print- 
                                                                                       transformations, 
                                                                                       print- 
                                                                                       schema- 
                                                                                       resolving, 
                                                                                       print- 
                                                                                       times, 
                                                                                       provenance 
--telemetry enable|disable                                                              Enable 
                                                                                       anonymous 
                                                                                       telemetry 
                                                                                       to 
                                                                                       help 
                                                                                       improve 
                                                                                       quicktype 
-h, --help                                                                              Get 
                                                                                       some 
                                                                                       help. 
-v, --version                                                                           Display 
                                                                                       the 
                                                                                       version 
                                                                                       of 
                                                                                       quicktype 

Options for C#

--framework NewtonSoft|SystemTextJson             Serialization framework      
--namespace NAME                                  Generated namespace          
--csharp-version 5|6                              C# version                   
--density normal|dense                            Property density             
--array-type array|list                           Use T[] or List<T>           
--number-type double|decimal                      Type to use for numbers      
--any-type object|dynamic                         Type to use for "any"        
--[no-]virtual                                    Generate virtual properties  
                                                 (off by default)             
--features complete|attributes-only|just-types-   Output features              
and-namespace|just-types                                                       
--base-class EntityData|Object                    Base class                   
--[no-]check-required                             Fail if required properties  
                                                 are missing (off by default) 

Options for Go

--[no-]just-types                                 Plain types only (off by     
                                                 default)                     
--package NAME                                    Generated package name       
--[no-]multi-file-output                          Renders each top-level       
                                                 object in its own Go file    
                                                 (off by default)             
--[no-]just-types-and-package                     Plain types with package     
                                                 only (off by default)        
--field-tags TAGS                                 list of tags which should be 
                                                 generated for fields         

Options for Rust

--density normal|dense                            Density                      
--visibility private|crate|public                 Field visibility             
--[no-]derive-debug                               Derive Debug impl (off by    
                                                 default)                     
--[no-]derive-clone                               Derive Clone impl (off by    
                                                 default)                     
--[no-]derive-partial-eq                          Derive PartialEq impl (off   
                                                 by default)                  
--[no-]edition-2018                               Edition 2018 (on by default) 
--[no-]leading-comments                           Leading Comments (on by      
                                                 default)                     

Options for C (cJSON)

--source-style single-source|multi-source         Source code generation type, 
                                                 whether to generate single   
                                                 or multiple source files     
--integer-size int8_t|int16_t|int32_t|int64_t     Integer code generation type 
                                                 (int64_t by default)         
--typedef-alias no-typedef|add-typedef            Add typedef alias to unions, 
                                                 structs, and enums (no       
                                                 typedef by default)          
--print-style print-formatted|print-unformatted   Which cJSON print should be  
                                                 used (formatted by default)  
--hashtable-size SIZE                             Hashtable size, used when    
                                                 maps are created (64 by      
                                                 default)                     
--type-style pascal-case|underscore-case|camel-   Naming style for types       
case|upper-underscore-case|pascal-case-upper-                                  
acronyms|camel-case-upper-acronyms                                             
--member-style underscore-case|pascal-            Naming style for members     
case|camel-case|upper-underscore-case|pascal-                                  
case-upper-acronyms|camel-case-upper-acronyms                                  
--enumerator-style upper-underscore-              Naming style for enumerators 
case|underscore-case|pascal-case|camel-                                        
case|pascal-case-upper-acronyms|camel-case-                                    
upper-acronyms                                                                 

Options for C++

--[no-]just-types                                 Plain types only (off by     
                                                 default)                     
--namespace NAME                                  Name of the generated        
                                                 namespace(s)                 
--code-format with-struct|with-getter-setter      Generate classes with        
                                                 getters/setters, instead of  
                                                 structs                      
--wstring use-string|use-wstring                  Store strings using Utf-16   
                                                 std::wstring, rather than    
                                                 Utf-8 std::string            
--const-style west-const|east-const               Put const to the left/west   
                                                 (const T) or right/east (T   
                                                 const)                       
--source-style single-source|multi-source         Source code generation type, 
                                                 whether to generate single   
                                                 or multiple source files     
--include-location local-include|global-include   Whether json.hpp is to be    
                                                 located globally or locally  
--type-style pascal-case|underscore-case|camel-   Naming style for types       
case|upper-underscore-case|pascal-case-upper-                                  
acronyms|camel-case-upper-acronyms                                             
--member-style underscore-case|pascal-            Naming style for members     
case|camel-case|upper-underscore-case|pascal-                                  
case-upper-acronyms|camel-case-upper-acronyms                                  
--enumerator-style upper-underscore-              Naming style for enumerators 
case|underscore-case|pascal-case|camel-                                        
case|pascal-case-upper-acronyms|camel-case-                                    
upper-acronyms                                                                 
--enum-type NAME                                  Type of enum class           
--[no-]boost                                      Require a dependency on      
                                                 boost. Without boost, C++17  
                                                 is required (on by default)  
--[no-]hide-null-optional                         Hide null value for optional 
                                                 field (off by default)       

Options for Objective-C

--[no-]just-types                                 Plain types only (off by     
                                                 default)                     
--class-prefix PREFIX                             Class prefix                 
--features all|interface|implementation           Interface and implementation 
--[no-]extra-comments                             Extra comments (off by       
                                                 default)                     
--[no-]functions                                  C-style functions (off by    
                                                 default)                     

Options for Java

--array-type array|list                           Use T[] or List<T>           
--[no-]just-types                                 Plain types only (off by     
                                                 default)                     
--datetime-provider java8|legacy                  Date time provider type      
--acronym-style original|pascal|camel|lowerCase   Acronym naming style         
--package NAME                                    Generated package name       
--[no-]lombok                                     Use lombok (off by default)  
--[no-]lombok-copy-annotations                    Copy accessor annotations    
                                                 (on by default)              

Options for TypeScript

--[no-]just-types                                 Interfaces only (off by      
                                                 default)                     
--[no-]nice-property-names                        Transform property names to  
                                                 be JavaScripty (off by       
                                                 default)                     
--[no-]explicit-unions                            Explicitly name unions (off  
                                                 by default)                  
--[no-]runtime-typecheck                          Verify JSON.parse results at 
                                                 runtime (on by default)      
--[no-]runtime-typecheck-ignore-unknown-properties  Ignore unknown properties    
                                                 when verifying at runtime    
                                                 (off by default)             
--acronym-style original|pascal|camel|lowerCase   Acronym naming style         
--converters top-level|all-objects                Which converters to generate 
                                                 (top-level by default)       
--raw-type json|any                               Type of raw input (json by   
                                                 default)                     
--[no-]prefer-unions                              Use union type instead of    
                                                 enum (off by default)        
--[no-]prefer-types                               Use types instead of         
                                                 interfaces (off by default)  

Options for JavaScript

--[no-]runtime-typecheck                          Verify JSON.parse results at 
                                                 runtime (on by default)      
--[no-]runtime-typecheck-ignore-unknown-properties  Ignore unknown properties    
                                                 when verifying at runtime    
                                                 (off by default)             
--acronym-style original|pascal|camel|lowerCase   Acronym naming style         
--converters top-level|all-objects                Which converters to generate 
                                                 (top-level by default)       
--raw-type json|any                               Type of raw input (json by   
                                                 default)                     

Options for JavaScript PropTypes

--acronym-style original|pascal|camel|lowerCase   Acronym naming style         
--converters top-level|all-objects                Which converters to generate 
                                                 (top-level by default)       

Options for Flow

--[no-]just-types                                 Interfaces only (off by      
                                                 default)                     
--[no-]nice-property-names                        Transform property names to  
                                                 be JavaScripty (off by       
                                                 default)                     
--[no-]explicit-unions                            Explicitly name unions (off  
                                                 by default)                  
--[no-]runtime-typecheck                          Verify JSON.parse results at 
                                                 runtime (on by default)      
--[no-]runtime-typecheck-ignore-unknown-properties  Ignore unknown properties    
                                                 when verifying at runtime    
                                                 (off by default)             
--acronym-style original|pascal|camel|lowerCase   Acronym naming style         
--converters top-level|all-objects                Which converters to generate 
                                                 (top-level by default)       
--raw-type json|any                               Type of raw input (json by   
                                                 default)                     
--[no-]prefer-unions                              Use union type instead of    
                                                 enum (off by default)        
--[no-]prefer-types                               Use types instead of         
                                                 interfaces (off by default)  

Options for Swift

--[no-]just-types                                 Plain types only (off by     
                                                 default)                     
--struct-or-class struct|class                    Structs or classes           
--density dense|normal                            Code density                 
--[no-]initializers                               Generate initializers and    
                                                 mutators (on by default)     
--[no-]coding-keys                                Explicit CodingKey values in 
                                                 Codable types (on by         
                                                 default)                     
--access-level internal|public                    Access level                 
--[no-]alamofire                                  Alamofire extensions (off by 
                                                 default)                     
--[no-]support-linux                              Support Linux (off by        
                                                 default)                     
--type-prefix PREFIX                              Prefix for type names        
--protocol none|equatable|hashable                Make types implement         
                                                 protocol                     
--acronym-style original|pascal|camel|lowerCase   Acronym naming style         
--[no-]objective-c-support                        Objects inherit from         
                                                 NSObject and @objcMembers is 
                                                 added to classes (off by     
                                                 default)                     
--[no-]optional-enums                             If no matching case is found 
                                                 enum value is set to null    
                                                 (off by default)             
--[no-]sendable                                   Mark generated models as     
                                                 Sendable (off by default)    
--[no-]swift-5-support                            Renders output in a Swift 5  
                                                 compatible mode (off by      
                                                 default)                     
--[no-]multi-file-output                          Renders each top-level       
                                                 object in its own Swift file 
                                                 (off by default)             
--[no-]mutable-properties                         Use var instead of let for   
                                                 object properties (off by    
                                                 default)                     

Options for Scala3

--framework just-types|circe|upickle              Serialization framework 
--package PACKAGE                                 Package                 

Options for Smithy

--framework just-types                            Serialization framework 
--package PACKAGE                                 Package                 

Options for Kotlin

--framework just-types|jackson|klaxon|kotlinx     Serialization framework 
--acronym-style original|pascal|camel|lowerCase   Acronym naming style    
--package PACKAGE                                 Package                 

Options for Elm

--[no-]just-types                                 Plain types only (off by     
                                                 default)                     
--module NAME                                     Generated module name        
--array-type array|list                           Use Array or List            

Options for Ruby

--[no-]just-types                                 Plain types only (off by     
                                                 default)                     
--strictness strict|coercible|none                Type strictness              
--namespace NAME                                  Specify a wrapping Namespace 

Options for Dart

--[no-]null-safety                                Null Safety (on by default)  
--[no-]just-types                                 Types only (off by default)  
--[no-]coders-in-class                            Put encoder & decoder in     
                                                 Class (off by default)       
--[no-]from-map                                   Use method names fromMap() & 
                                                 toMap() (off by default)     
--[no-]required-props                             Make all properties required 
                                                 (off by default)             
--[no-]final-props                                Make all properties final    
                                                 (off by default)             
--[no-]copy-with                                  Generate CopyWith method     
                                                 (off by default)             
--[no-]use-freezed                                Generate class definitions   
                                                 with @freezed compatibility  
                                                 (off by default)             
--[no-]use-hive                                   Generate annotations for     
                                                 Hive type adapters (off by   
                                                 default)                     
--[no-]use-json-annotation                        Generate annotations for     
                                                 json_serializable (off by    
                                                 default)                     
--part-name NAME                                  Use this name in `part`      
                                                 directive                    

Options for Python

--python-version 3.5|3.6|3.7                      Python version               
--[no-]just-types                                 Classes only (off by         
                                                 default)                     
--[no-]nice-property-names                        Transform property names to  
                                                 be Pythonic (on by default)  

Options for Haskell

--[no-]just-types                                 Plain types only (off by     
                                                 default)                     
--module NAME                                     Generated module name        
--array-type array|list                           Use Array or List            

Options for PHP

--[no-]with-get                                   Create Getter (on by         
                                                 default)                     
--[no-]fast-get                                   getter without validation    
                                                 (off by default)             
--[no-]with-set                                   Create Setter (off by        
                                                 default)                     
--[no-]with-closing                               PHP Closing Tag (off by      
                                                 default)                     
--acronym-style original|pascal|camel|lowerCase   Acronym naming style         

Examples

Generate C# to parse a Bitcoin API                                            
$ quicktype -o LatestBlock.cs https://blockchain.info/latestblock             
                                                                              
Generate Go code from a directory of samples containing:                      
  - Foo.json                                                                  
  + Bar                                                                       
    - bar-sample-1.json                                                       
    - bar-sample-2.json                                                       
  - Baz.url                                                                   
$ quicktype -l go samples                                                     
                                                                              
Generate JSON Schema, then TypeScript                                         
$ quicktype -o schema.json https://blockchain.info/latestblock                
$ quicktype -o bitcoin.ts --src-lang schema schema.json                       

Learn more at quicktype.io

After

Synopsis

$ quicktype [--lang LANG] [--src-lang SRC_LANG] [--out FILE] FILE|URL ...     
                                                                              
LANG ... cs|go|rs|cr|cjson|c++|objc|java|ts|js|javascript-prop-               
types|flow|swift|scala3|Smithy|kotlin|elm|schema|ruby|dart|py|pike|haskell|typescript- 
zod|typescript-effect-schema|php                                              
                                                                              
SRC_LANG ... json|schema|graphql|postman|typescript                           

Description

Given JSON sample data, quicktype outputs code for working with that data in  
C#, Go, Rust, Crystal, C (cJSON), C++, Objective-C, Java, TypeScript,         
JavaScript, JavaScript PropTypes, Flow, Swift, Scala3, Smithy, Kotlin, Elm,   
JSON Schema, Ruby, Dart, Python, Pike, Haskell, TypeScript Zod, TypeScript    
Effect Schema, PHP.                                                           

Options

-o, --out FILE                                              The output file. Determines --lang and --top-level.        
-t, --top-level NAME                                        The name for the top level type.                           
-l, --lang LANG                                             The target language.                                       
-s, --src-lang SRC_LANG                                     The source language (default is json).                     
--src FILE|URL|DIRECTORY                                    The file, url, or data directory to type.                  
--src-urls FILE                                             Tracery grammar describing URLs to crawl.                  
--no-maps                                                   Don't infer maps, always use classes.                      
--no-enums                                                  Don't infer enums, always use strings.                     
--no-uuids                                                  Don't convert UUIDs to UUID objects.                       
--no-date-times                                             Don't infer dates or times.                                
--no-integer-strings                                        Don't convert stringified integers to integers.            
--no-boolean-strings                                        Don't convert stringified booleans to booleans.            
--no-combine-classes                                        Don't combine similar classes.                             
--no-ignore-json-refs                                       Treat $ref as a reference in JSON.                         
--graphql-schema FILE                                       GraphQL introspection file.                                
--graphql-introspect URL                                    Introspect GraphQL schema from a server.                   
--http-method METHOD                                        HTTP method to use for the GraphQL introspection query.    
--http-header HEADER                                        Header(s) to attach to all HTTP requests, including the    
                                                           GraphQL introspection query.                               
-S, --additional-schema FILE                                Register the $id's of additional JSON Schema files.        
--alphabetize-properties                                    Alphabetize order of class properties.                     
--all-properties-optional                                   Make all class properties optional.                        
--quiet                                                     Don't show issues in the generated code.                   
--debug OPTIONS or all                                      Comma separated debug options: print-graph, print-         
                                                           reconstitution, print-gather-names, print-transformations, 
                                                           print-schema-resolving, print-times, provenance            
--telemetry enable|disable                                  Enable anonymous telemetry to help improve quicktype       
-h, --help                                                  Get some help.                                             
-v, --version                                               Display the version of quicktype                           

Options for C#

--framework NewtonSoft|SystemTextJson                       Serialization framework                                    
--namespace NAME                                            Generated namespace                                        
--csharp-version 5|6                                        C# version                                                 
--density normal|dense                                      Property density                                           
--array-type array|list                                     Use T[] or List<T>                                         
--number-type double|decimal                                Type to use for numbers                                    
--any-type object|dynamic                                   Type to use for "any"                                      
--[no-]virtual                                              Generate virtual properties (off by default)               
--features complete|attributes-only|just-types-and-         Output features                                            
namespace|just-types                                                                                                   
--base-class EntityData|Object                              Base class                                                 
--[no-]check-required                                       Fail if required properties are missing (off by default)   

Options for Go

--[no-]just-types                                           Plain types only (off by default)                          
--package NAME                                              Generated package name                                     
--[no-]multi-file-output                                    Renders each top-level object in its own Go file (off by   
                                                           default)                                                   
--[no-]just-types-and-package                               Plain types with package only (off by default)             
--field-tags TAGS                                           list of tags which should be generated for fields          

Options for Rust

--density normal|dense                                      Density                                                    
--visibility private|crate|public                           Field visibility                                           
--[no-]derive-debug                                         Derive Debug impl (off by default)                         
--[no-]derive-clone                                         Derive Clone impl (off by default)                         
--[no-]derive-partial-eq                                    Derive PartialEq impl (off by default)                     
--[no-]edition-2018                                         Edition 2018 (on by default)                               
--[no-]leading-comments                                     Leading Comments (on by default)                           

Options for C (cJSON)

--source-style single-source|multi-source                   Source code generation type, whether to generate single or 
                                                           multiple source files                                      
--integer-size int8_t|int16_t|int32_t|int64_t               Integer code generation type (int64_t by default)          
--typedef-alias no-typedef|add-typedef                      Add typedef alias to unions, structs, and enums (no        
                                                           typedef by default)                                        
--print-style print-formatted|print-unformatted             Which cJSON print should be used (formatted by default)    
--hashtable-size SIZE                                       Hashtable size, used when maps are created (64 by default) 
--type-style pascal-case|underscore-case|camel-case|upper-  Naming style for types                                     
underscore-case|pascal-case-upper-acronyms|camel-case-                                                                 
upper-acronyms                                                                                                         
--member-style underscore-case|pascal-case|camel-           Naming style for members                                   
case|upper-underscore-case|pascal-case-upper-                                                                          
acronyms|camel-case-upper-acronyms                                                                                     
--enumerator-style upper-underscore-case|underscore-        Naming style for enumerators                               
case|pascal-case|camel-case|pascal-case-upper-                                                                         
acronyms|camel-case-upper-acronyms                                                                                     

Options for C++

--[no-]just-types                                           Plain types only (off by default)                          
--namespace NAME                                            Name of the generated namespace(s)                         
--code-format with-struct|with-getter-setter                Generate classes with getters/setters, instead of structs  
--wstring use-string|use-wstring                            Store strings using Utf-16 std::wstring, rather than Utf-8 
                                                           std::string                                                
--const-style west-const|east-const                         Put const to the left/west (const T) or right/east (T      
                                                           const)                                                     
--source-style single-source|multi-source                   Source code generation type,  whether to generate single   
                                                           or multiple source files                                   
--include-location local-include|global-include             Whether json.hpp is to be located globally or locally      
--type-style pascal-case|underscore-case|camel-case|upper-  Naming style for types                                     
underscore-case|pascal-case-upper-acronyms|camel-case-                                                                 
upper-acronyms                                                                                                         
--member-style underscore-case|pascal-case|camel-           Naming style for members                                   
case|upper-underscore-case|pascal-case-upper-                                                                          
acronyms|camel-case-upper-acronyms                                                                                     
--enumerator-style upper-underscore-case|underscore-        Naming style for enumerators                               
case|pascal-case|camel-case|pascal-case-upper-                                                                         
acronyms|camel-case-upper-acronyms                                                                                     
--enum-type NAME                                            Type of enum class                                         
--[no-]boost                                                Require a dependency on boost. Without boost, C++17 is     
                                                           required (on by default)                                   
--[no-]hide-null-optional                                   Hide null value for optional field (off by default)        

Options for Objective-C

--[no-]just-types                                           Plain types only (off by default)                          
--class-prefix PREFIX                                       Class prefix                                               
--features all|interface|implementation                     Interface and implementation                               
--[no-]extra-comments                                       Extra comments (off by default)                            
--[no-]functions                                            C-style functions (off by default)                         

Options for Java

--array-type array|list                                     Use T[] or List<T>                                         
--[no-]just-types                                           Plain types only (off by default)                          
--datetime-provider java8|legacy                            Date time provider type                                    
--acronym-style original|pascal|camel|lowerCase             Acronym naming style                                       
--package NAME                                              Generated package name                                     
--[no-]lombok                                               Use lombok (off by default)                                
--[no-]lombok-copy-annotations                              Copy accessor annotations (on by default)                  

Options for TypeScript

--[no-]just-types                                           Interfaces only (off by default)                           
--[no-]nice-property-names                                  Transform property names to be JavaScripty (off by         
                                                           default)                                                   
--[no-]explicit-unions                                      Explicitly name unions (off by default)                    
--[no-]runtime-typecheck                                    Verify JSON.parse results at runtime (on by default)       
--[no-]runtime-typecheck-ignore-unknown-properties          Ignore unknown properties when verifying at runtime (off   
                                                           by default)                                                
--acronym-style original|pascal|camel|lowerCase             Acronym naming style                                       
--converters top-level|all-objects                          Which converters to generate (top-level by default)        
--raw-type json|any                                         Type of raw input (json by default)                        
--[no-]prefer-unions                                        Use union type instead of enum (off by default)            
--[no-]prefer-types                                         Use types instead of interfaces (off by default)           

Options for JavaScript

--[no-]runtime-typecheck                                    Verify JSON.parse results at runtime (on by default)       
--[no-]runtime-typecheck-ignore-unknown-properties          Ignore unknown properties when verifying at runtime (off   
                                                           by default)                                                
--acronym-style original|pascal|camel|lowerCase             Acronym naming style                                       
--converters top-level|all-objects                          Which converters to generate (top-level by default)        
--raw-type json|any                                         Type of raw input (json by default)                        

Options for JavaScript PropTypes

--acronym-style original|pascal|camel|lowerCase             Acronym naming style                                       
--converters top-level|all-objects                          Which converters to generate (top-level by default)        

Options for Flow

--[no-]just-types                                           Interfaces only (off by default)                           
--[no-]nice-property-names                                  Transform property names to be JavaScripty (off by         
                                                           default)                                                   
--[no-]explicit-unions                                      Explicitly name unions (off by default)                    
--[no-]runtime-typecheck                                    Verify JSON.parse results at runtime (on by default)       
--[no-]runtime-typecheck-ignore-unknown-properties          Ignore unknown properties when verifying at runtime (off   
                                                           by default)                                                
--acronym-style original|pascal|camel|lowerCase             Acronym naming style                                       
--converters top-level|all-objects                          Which converters to generate (top-level by default)        
--raw-type json|any                                         Type of raw input (json by default)                        
--[no-]prefer-unions                                        Use union type instead of enum (off by default)            
--[no-]prefer-types                                         Use types instead of interfaces (off by default)           

Options for Swift

--[no-]just-types                                           Plain types only (off by default)                          
--struct-or-class struct|class                              Structs or classes                                         
--density dense|normal                                      Code density                                               
--[no-]initializers                                         Generate initializers and mutators (on by default)         
--[no-]coding-keys                                          Explicit CodingKey values in Codable types (on by default) 
--access-level internal|public                              Access level                                               
--[no-]alamofire                                            Alamofire extensions (off by default)                      
--[no-]support-linux                                        Support Linux (off by default)                             
--type-prefix PREFIX                                        Prefix for type names                                      
--protocol none|equatable|hashable                          Make types implement protocol                              
--acronym-style original|pascal|camel|lowerCase             Acronym naming style                                       
--[no-]objective-c-support                                  Objects inherit from NSObject and @objcMembers is added to 
                                                           classes (off by default)                                   
--[no-]optional-enums                                       If no matching case is found enum value is set to null     
                                                           (off by default)                                           
--[no-]sendable                                             Mark generated models as Sendable (off by default)         
--[no-]swift-5-support                                      Renders output in a Swift 5 compatible mode (off by        
                                                           default)                                                   
--[no-]multi-file-output                                    Renders each top-level object in its own Swift file (off   
                                                           by default)                                                
--[no-]mutable-properties                                   Use var instead of let for object properties (off by       
                                                           default)                                                   

Options for Scala3

--framework just-types|circe|upickle                        Serialization framework                                    
--package PACKAGE                                           Package                                                    

Options for Smithy

--framework just-types                                      Serialization framework                                    
--package PACKAGE                                           Package                                                    

Options for Kotlin

--framework just-types|jackson|klaxon|kotlinx               Serialization framework                                    
--acronym-style original|pascal|camel|lowerCase             Acronym naming style                                       
--package PACKAGE                                           Package                                                    

Options for Elm

--[no-]just-types                                           Plain types only (off by default)                          
--module NAME                                               Generated module name                                      
--array-type array|list                                     Use Array or List                                          

Options for Ruby

--[no-]just-types                                           Plain types only (off by default)                          
--strictness strict|coercible|none                          Type strictness                                            
--namespace NAME                                            Specify a wrapping Namespace                               

Options for Dart

--[no-]null-safety                                          Null Safety (on by default)                                
--[no-]just-types                                           Types only (off by default)                                
--[no-]coders-in-class                                      Put encoder & decoder in Class (off by default)            
--[no-]from-map                                             Use method names fromMap() & toMap() (off by default)      
--[no-]required-props                                       Make all properties required (off by default)              
--[no-]final-props                                          Make all properties final (off by default)                 
--[no-]copy-with                                            Generate CopyWith method (off by default)                  
--[no-]use-freezed                                          Generate class definitions with @freezed compatibility     
                                                           (off by default)                                           
--[no-]use-hive                                             Generate annotations for Hive type adapters (off by        
                                                           default)                                                   
--[no-]use-json-annotation                                  Generate annotations for json_serializable (off by         
                                                           default)                                                   
--part-name NAME                                            Use this name in `part` directive                          

Options for Python

--python-version 3.5|3.6|3.7                                Python version                                             
--[no-]just-types                                           Classes only (off by default)                              
--[no-]nice-property-names                                  Transform property names to be Pythonic (on by default)    

Options for Haskell

--[no-]just-types                                           Plain types only (off by default)                          
--module NAME                                               Generated module name                                      
--array-type array|list                                     Use Array or List                                          

Options for PHP

--[no-]with-get                                             Create Getter (on by default)                              
--[no-]fast-get                                             getter without validation (off by default)                 
--[no-]with-set                                             Create Setter (off by default)                             
--[no-]with-closing                                         PHP Closing Tag (off by default)                           
--acronym-style original|pascal|camel|lowerCase             Acronym naming style                                       

Examples

Generate C# to parse a Bitcoin API                                            
$ quicktype -o LatestBlock.cs https://blockchain.info/latestblock             
                                                                              
Generate Go code from a directory of samples containing:                      
  - Foo.json                                                                  
  + Bar                                                                       
    - bar-sample-1.json                                                       
    - bar-sample-2.json                                                       
  - Baz.url                                                                   
$ quicktype -l go samples                                                     
                                                                              
Generate JSON Schema, then TypeScript                                         
$ quicktype -o schema.json https://blockchain.info/latestblock                
$ quicktype -o bitcoin.ts --src-lang schema schema.json                       

Learn more at quicktype.io