npx elm-webapp crud

elm-webapp crud has changed

-       crud                    generates a standard "Browser.application"
-                               with the ability to list, create, edit, and
-                               destroy "Foobar" records
+       crud <TypeName>         patch the <target_directory> with the ability
+                               to list, create, edit, and destroy "TypeName"
+                               records

Trying it with crud Article mynews where the subdirectory mynews does not exist yet

$ npx elm-webapp@3.1.1 crud Article mynews  
npx: installed 1 in 1.98s
Writing mynews/Makefile ...
Writing mynews/index.js ...
Writing mynews/lambda.js ...
Writing mynews/node.js ...
Writing mynews/scripts/wait-for-changes.js ...
Writing mynews/src/Client.elm ...
Writing mynews/src/Protocol.elm ...
Writing mynews/src/Server.elm ...
Writing mynews/src/Extra/Codec.elm ...
Writing mynews/src/Extra/Http.elm ...
creating mynews/src/Client/ArticleUI.elm ...
patching mynews/src/Client.elm ...
patching mynews/src/Client.elm ...
patching mynews/src/Client.elm ...
patching mynews/src/Client.elm ...
patching mynews/src/Client.elm ...
patching mynews/src/Client.elm ...
patching mynews/src/Client.elm ...
patching mynews/src/Client.elm ...
patching mynews/src/Client.elm ...
patching mynews/src/Client.elm ...
creating mynews/src/Protocol/Article.elm ...
patching mynews/src/Protocol.elm ...
patching mynews/src/Protocol.elm ...
patching mynews/src/Protocol.elm ...
patching mynews/src/Protocol.elm ...
patching mynews/src/Protocol.elm ...
patching mynews/src/Protocol.elm ...
creating mynews/src/Server/ArticleAPI.elm ...
patching mynews/src/Server.elm ...
patching mynews/src/Server.elm ...
patching mynews/src/Server.elm ...
patching mynews/src/Server.elm ...

  Done! Now execute:

      1. cd mynews
      2. make install
      3. make
  
$ cd mynews 
mynews$ make install
...

ready. type `make` to start server

mynews$ make
...
[ 'js' ] [ 'http' ] nodeHttpServer
[ 'js' ] [ 'http' ] server listening at 8000 ...
[ 'js' ] [ 'http' ] [watch] file changes in ./src

and visiting http://localhost:8000 will show

if you run another crud, e.g. Userinto the same directory mynews, you'll get

mynews$ npx elm-webapp@3.1.1 crud User .        
npx: installed 1 in 0.812s
creating src/Client/UserUI.elm ...
patching src/Client.elm ...
patching src/Client.elm ...
patching src/Client.elm ...
patching src/Client.elm ...
patching src/Client.elm ...
patching src/Client.elm ...
patching src/Client.elm ...
patching src/Client.elm ...
patching src/Client.elm ...
patching src/Client.elm ...
creating src/Protocol/User.elm ...
patching src/Protocol.elm ...
patching src/Protocol.elm ...
patching src/Protocol.elm ...
patching src/Protocol.elm ...
patching src/Protocol.elm ...
patching src/Protocol.elm ...
creating src/Server/UserAPI.elm ...
patching src/Server.elm ...
patching src/Server.elm ...
patching src/Server.elm ...
patching src/Server.elm ...

you'll get another CRUD feature added to the existing app 🥳

New cli release

Added 2 new "types". We now total 5 types of apps to be generated:

USAGE:

    elm-webapp <type> <target_directory>

TYPE:

    While the generated "src/Server.elm" is the same, you can choose
    what kind of "src/Client.elm" to generate:

        application             generates a standard "Browser.application"

        document                generates a standard "Browser.document"

        element                 generates a standard "Browser.element"

        application-element     generates a standard "Browser.element" with
                                routing capabilities like "Browser.application"
                                but more compatible with browser extensions

    This generates a different "src/Server.elm" that comes with "CRUD"
    operations with an in-memory server state: Data is preserved on the
    Server only while the Server process is running.

        crud                    generates a standard "Browser.application"
                                with the ability to list, create, edit, and
                                destroy "Foobar" records

EXAMPLE:

    elm-webapp application helloworld

1. application-element is for generating SPA client code that is more compatible with browser extensions. see https://github.com/jinjor/elm-break-dom and choonkeat/elm-element-navigation#1

2. crud generates a full CRUD app that persists data in memory; in the ServerState.

crud.demo.mov

The hope is that this helps speed up development; changing the required data easily. Then before releasing the feature, edit the Server.FoobarAPI#updateFromClient code to persist those memory values in an external DB like Hasura or DynamoDB while leaving the developed src/Client.elm code untouched

NOTE: courtesy of npm version, looks like git tags with v prefix will be npm/cli updates

Type signature changes for `headerDecoder` and `httpEndpoint`

Type signature changes are described respectively in

• headerDecoder 97fc97b#commitcomment-57041256
• httpEndpoint 59068fb#commitcomment-57041258

This release also updates the generator to include a few new MsgFromClient and MsgFromServer out of the box

• ManyMsgFromClient (List MsgFromClient) and ManyMsgFromServer (List MsgFromServer) variants are convenient to batch several messages to a single request and/or response
• ClientServerVersionMismatch is a new default message that Client can understand that its version is out of sync with Server and should reload (or ask the end user to reload)