feat: Custom type and ref arg handling in SchemaProcessor with tests #412

vaisshnavi7 · 2024-12-11T22:34:50Z

Problem:
-Custom type and ref arguments in custom queries and mutations were not properly handled in the SchemaProcessor, leading to incorrect GraphQL schema generation.
-Several integration tests in custom-operations.ts were previously skipped due to schema validation issues related to custom type argument features.

Related PR
-This PR addresses the skipped tests and completes the implementation started in PR #402.

Changes:

Updated SchemaProcessor.ts to generate GraphQL input types for custom types and ref arguments.
Modified the processing of custom operations to use these generated input types.
Implemented generateInputTypes function to create GraphQL input types for custom structures.
Expanded and fixed integration tests in custom-operations.ts:
- Re-enabled previously skipped tests
- Added new test for schema.transform() to ensure correct schema generation
- Added new tests for mocked runtime behavior of client operations with custom type and ref arguments
Updated test snapshots to reflect new schema generation behavior
Adjusted test cases in CustomOperations.test.ts, client-schema.ts, and ssr-req-client.ts

Validation:

Expanded existing integration tests in custom-operations.ts to cover new functionality, including:
- A new test for schema.transform() to verify correct schema generation
- New tests for mocked client operations with custom type and ref arguments
Re-enabled and fixed previously skipped tests in custom-operations.ts
Verified that all tests now pass, including those for custom types and ref arguments

By submitting this pull request, I confirm that you can use, modify, copy, and redistribute this contribution, under the terms of your choice.

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…t ordering

- Update schema processor to correctly include all custom types - Adjust test cases in CustomOperations.test.ts, client-schema.ts, and ssr-req-client.ts - Update corresponding snapshots to reflect change

iartemiev

I'm seeing some unexpected changes in the code and tests/snapshots, as called out in the comments.

Let's baseline on the requirements. When custom query/mutation arguments contain non-scalar values (e.g., custom types or a refs to custom types), we should:

Define a GraphQL Input type from the arguments in the SDL output from schema.transform()
Reference this input type in the query/mutation field argument
The GraphQL Type definition for the custom type should remain in the SDL output

For example, given:

Location: a.customType({
  lat: a.float(),
  long: a.float(),
}),

addLocationToPost: a
  .mutation()
  .arguments({ postId: a.string(), location: a.ref('Location') })
  .handler(a.handler.custom({ entry: './source.js' }))
  .returns(a.boolean())

The GraphQL output should be:

type Location 
{
  lat: Float
  long: Float
}

input AddLocationToPostLocationInput 
{
  lat: Float
  long: Float
}

type Mutation {
  addLocationToPost(postId: string, location: AddLocationToPostLocationInput): Boolean
}

However, when I pull down the PR and run schema.transform() on the same schema , I get the following output:

type Location 
{
  lat: Float
  long: Float
}

type Mutation {
  addLocationToPost(postId: String, location: ID): Boolean
}

Input type is not getting generated
addLocationToPost field arg location is referencing type ID instead of the Input type

After making the requested changes, I recommend linking @aws-amplify/data-schema into a sample app and actually attempting to deploy some schemas with custom operations containing non-scalar arguments to make sure everything works as expected.

iartemiev · 2024-12-18T17:51:07Z

packages/data-schema/__tests__/__snapshots__/CustomOperations.test.ts.snap

-"type LikePostReturnType 
-{
-  stringField: String
-  intField: Int
-  floatField: Float
-  boolField: Boolean
-  datetimeField: AWSDateTime
-  jsonField: AWSJSON
-}


We shouldn't be dropping this type definition. If we're just left with

type Mutation { likePost(postId: String!): LikePostReturnType }

The field return type LikePostReturnType is referencing an undefined type. This schema would error during deployment

iartemiev · 2024-12-18T17:51:58Z

packages/data-schema/__tests__/__snapshots__/CustomOperations.test.ts.snap

-"type GetPostDetailsReturnType 
-{
-  stringField: String
-  intField: Int
-  floatField: Float
-  boolField: Boolean
-  datetimeField: AWSDateTime
-  jsonField: AWSJSON
-}


Same as above ^. This type definition should not get dropped

iartemiev · 2024-12-18T17:52:12Z

packages/data-schema/__tests__/__snapshots__/CustomOperations.test.ts.snap

-"type CreateCustomTypePostReturnType @aws_api_key
-{
-  title: String!
-}


Same here and below

iartemiev · 2024-12-18T17:57:13Z

packages/data-schema/src/SchemaProcessor.ts

-        `${fieldName}: ${modelFieldToGql(fieldDef.data)}${fieldAuth}`,
-      );
+      if (isInput) {
+        gqlFields.push(`${fieldName}: ID${fieldAuth}`);


Why does an input become a field of type ID?

iartemiev · 2024-12-18T18:04:41Z

packages/integration-tests/__tests__/defined-behavior/2-expected-use/custom-operations.ts

+      'queryWithCustomTypeArg(customArg: ID): String',
+      'queryWithRefArg(refArg: ID): String',
+      'mutateWithCustomTypeArg(customArg: ID): String',
+      'mutationWithRefArg(refArg: ID): String',


Similarly to previous comments, these should all be input types, something like:

'queryWithCustomTypeArg(customArg: QueryWithCustomTypeArgInput): String', 'queryWithRefArg(refArg: QueryWithRefArgInput): String', 'mutateWithCustomTypeArg(customArg: MutateWithCustomTypeArgInput): String', 'mutationWithRefArg(refArg: MutationWithRefArgInput): String'

And we should also test that these Input types themselves are being emitted in schema.transform()

iartemiev · 2024-12-18T18:07:01Z

...tion-tests/__tests__/defined-behavior/2-expected-use/__snapshots__/custom-operations.ts.snap

+      "authMode": undefined,
+      "authToken": undefined,
+      "query": "
+    mutation($customArg: ID) {


Here and below, ID is not the correct GraphQL data type for these operations. We should be referencing the Input type that is generated from our Custom Type

iartemiev · 2024-12-18T18:08:20Z

packages/data-schema/src/SchemaProcessor.ts

-          `${fieldName}: ${refFieldToGql(fieldDef.data, secondaryIndexes[fieldName])}${fieldAuth}`,
-        );
+        if (isInput) {
+          gqlFields.push(`${fieldName}: ID${fieldAuth}`);


stocaaro · 2024-12-18T21:55:33Z

packages/data-schema/__tests__/CustomOperations.test.ts

    const s = a.schema({
+      MyQueryReturnType: a.customType({
+        fieldA: a.string(),
+        fieldB: a.integer(),
+        nestedCustomType: a.customType({
+          nestedA: a.string(),
+          nestedB: a.string(),
+          grandChild: a.customType({
+            grandA: a.string(),
+            grandB: a.string(),
+          }),
+        }),
+      }),
      myQuery: a
        .query()
        .handler(a.handler.function('myFn'))
-        .returns(
-          a.customType({
-            fieldA: a.string(),
-            fieldB: a.integer(),
-            nestedCustomType: a.customType({
-              nestedA: a.string(),
-              nestedB: a.string(),
-              grandChild: a.customType({
-                grandA: a.string(),
-                grandB: a.string(),
-              }),
-            }),
-          }),
-        )


Are both of these cases covered under test? It might make sense to duplicate this test here to ensure we cover both inline custom types and ref custom types.

stocaaro · 2024-12-18T21:58:35Z

packages/data-schema/__tests__/__snapshots__/ClientSchema.test.ts.snap

@@ -595,7 +595,11 @@ exports[`schema auth rules global public auth - multiple models 1`] = `
  "functionSlots": [],
  "jsFunctions": [],
  "lambdaFunctions": {},
-  "schema": "type A @model @auth(rules: [{allow: public, provider: apiKey}])


I'm not sure I understand why this changed. What caused this diff?

This is probably related to Ivan's comments below.

…g handling

feat: Custom type and ref arg handling in SchemaProcessor with tests

d25d07f

vaisshnavi7 added 4 commits December 11, 2024 15:32

fix: Remove unused variable in SchemaProcessor

5db42f8

Refactor schema assembly to support custom types and improve componen…

d5da91e

…t ordering

Update snapshots for custom type and ref arg integration tests

18f07fd

fix: Resolve custom type handling in schema generation

8a4f55f

- Update schema processor to correctly include all custom types - Adjust test cases in CustomOperations.test.ts, client-schema.ts, and ssr-req-client.ts - Update corresponding snapshots to reflect change

vaisshnavi7 marked this pull request as ready for review December 16, 2024 21:07

vaisshnavi7 requested review from a team as code owners December 16, 2024 21:07

iartemiev requested changes Dec 18, 2024

View reviewed changes

stocaaro reviewed Dec 18, 2024

View reviewed changes

refactor(schema): address PR #412 feedback for custom type and ref ar…

733d674

…g handling

vaisshnavi7 marked this pull request as draft December 27, 2024 04:48

fix: Remove duplicate schema definitions

4e49d64

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feat: Custom type and ref arg handling in SchemaProcessor with tests #412

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vaisshnavi7 commented Dec 11, 2024 •

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feat: Custom type and ref arg handling in SchemaProcessor with tests #412

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vaisshnavi7 commented Dec 11, 2024 •

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