Add GraphQL backend support

templates/README.md

@@ -86,10 +86,10 @@ You should specify those arguments [as per the documentation](https://kubernetes
 
 # APIs Specification
 
-## Environment Settings 
+## Environment Settings
 Before you get presigned url from S3, make sure the following environment variables have been set.
-Variable | Description 
---- | --- 
+Variable | Description
+--- | ---
 AWS_ACCESS_KEY_ID | The IMA user's access key id with full control permission to S3
 AWS_Secret_Access_Key | The IMA user's secret access key
 AWS_REGION | The AWS region, such as "us-east-1", "us-west-2"
@@ -100,10 +100,10 @@ AWS_S3_DEFAULT_BUCKET | optional, default bucket is applied if the bucket name i
 ```
 GET /file/presigned?key=filepath[&bucket=bucketname]
 ```
-Note: The path variable :key doesn't allow the value is a path which includes '/' so that we change it from path variable to a query string 
+Note: The path variable :key doesn't allow the value is a path which includes '/' so that we change it from path variable to a query string
 ### Parameters
-Parameter | Description 
---- | --- 
+Parameter | Description
+--- | ---
 key | The path+filename on the Bucket
 bucket | The bucket name on S3. The default value will be applied if it isn't given.
 
@@ -116,8 +116,8 @@ curl --location --request GET 'http://localhost:8090/file/presigned?key=images/w
 curl --location --request GET 'http://localhost:8090/file/presigned/key=images/windows.png&bucket=bigfile-bucket'
 ```
 ### Response Body
-Properties | Description 
---- | --- 
+Properties | Description
+--- | ---
 url | The presigned url of uploading a file
 method | The method of request to upload the file
 
@@ -146,8 +146,8 @@ curl --location --request PUT 'https://bigfile-bucket.s3.us-west-2.amazonaws.com
 GET /file?key=filepath[&bucket=bucketname]
 ```
 ### Parameters
-Parameter | Description 
---- | --- 
+Parameter | Description
+--- | ---
 key | The path+filename on the Bucket
 bucket | Optional, The bucket name on S3. The default value will be applied if it isn't given.
 
@@ -160,8 +160,8 @@ curl --location --request GET 'http://localhost:8090/file?key=images/windows.png
 curl --location --request GET 'http://localhost:8090/file?key=images/windows.png&bucket=bigfile-bucket'bucket=bigfile-bucket'
 ```
 ### Response Body
-Properties | Description 
---- | --- 
+Properties | Description
+--- | ---
 url | The presigned url of uploading a file
 method | The method of request to upload the file
 
@@ -177,9 +177,18 @@ method | The method of request to upload the file
 Copy this presigned url and paste it into your browser, then done.
 #### download through curl
 ```
-curl --location --request GET '[presigned url for download]' 
+curl --location --request GET '[presigned url for download]'
 ```
 
+<%if eq (index .Params `apiType`) "graphql" %>
+# GraphQL Schema Updates
+After making changes to the `/graph/schema.graphqls` GraphQL schema, run the following command to generate new resolver implementation stubs:
+
+```
+$ go generate ./...
+```
+<% end %>
+
 # Database Migration
 Database migrations are handled with [Flyway](https://flywaydb.org/). Migrations run in a docker container started in the Kubernetes cluster by CircleCI or the local dev environment startup process.
 

templates/go.mod

@@ -3,7 +3,9 @@ module <% .Files.Repository %>
 go 1.14
 
 require (
+	github.com/99designs/gqlgen v0.13.0
 	github.com/aws/aws-sdk-go v1.37.6
-	github.com/jinzhu/gorm v1.9.16 
+	github.com/jinzhu/gorm v1.9.16
 	github.com/joho/godotenv v1.3.0
+	github.com/vektah/gqlparser/v2 v2.1.0
 )

templates/gqlgen.yml

@@ -0,0 +1,56 @@
+# Where are all the schema files located? globs are supported eg  src/**/*.graphqls
+schema:
+  - graph/*.graphqls
+
+# Where should the generated server code go?
+exec:
+  filename: graph/generated/generated.go
+  package: generated
+
+# Uncomment to enable federation
+# federation:
+#   filename: graph/generated/federation.go
+#   package: generated
+
+# Where should any generated models go?
+model:
+  filename: graph/model/models_gen.go
+  package: model
+
+# Where should the resolver implementations go?
+resolver:
+  layout: follow-schema
+  dir: graph
+  package: graph
+
+# Optional: turn on use `gqlgen:"fieldName"` tags in your models
+# struct_tag: json
+
+# Optional: turn on to use []Thing instead of []*Thing
+# omit_slice_element_pointers: false
+
+# Optional: set to speed up generation time by not performing a final validation pass.
+# skip_validation: true
+
+# gqlgen will search for any type names in the schema in these go packages
+# if they match it will use them, otherwise it will generate them.
+autobind:
+  - "<% .Files.Repository %>/graph/model"
+
+# This section declares type mapping between the GraphQL and go type systems
+#
+# The first line in each type will be used as defaults for resolver arguments and
+# modelgen, the others will be allowed when binding to fields. Configure them to
+# your liking
+models:
+  ID:
+    model:
+      - github.com/99designs/gqlgen/graphql.ID
+      - github.com/99designs/gqlgen/graphql.Int
+      - github.com/99designs/gqlgen/graphql.Int64
+      - github.com/99designs/gqlgen/graphql.Int32
+  Int:
+    model:
+      - github.com/99designs/gqlgen/graphql.Int
+      - github.com/99designs/gqlgen/graphql.Int64
+      - github.com/99designs/gqlgen/graphql.Int32