https://github.com/sudokar/cdk-appsync-typescript-resolver

AWS CDK construct to build AppSync JS resolvers using Typescript
https://github.com/sudokar/cdk-appsync-typescript-resolver

appsync aws-appsync aws-cdk cdk javascript resolver typescript

Last synced: 2 months ago
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AWS CDK construct to build AppSync JS resolvers using Typescript

• Host: GitHub
• URL: https://github.com/sudokar/cdk-appsync-typescript-resolver
• Owner: sudokar
• License: apache-2.0
• Created: 2023-07-29T16:04:51.000Z (over 2 years ago)
• Default Branch: main
• Last Pushed: 2026-01-20T05:06:51.000Z (3 months ago)
• Last Synced: 2026-01-20T09:16:24.579Z (3 months ago)
• Topics: appsync, aws-appsync, aws-cdk, cdk, javascript, resolver, typescript
• Language: TypeScript
• Homepage: https://constructs.dev/packages/cdk-appsync-typescript-resolver/v/0.0.4?lang=typescript
• Size: 601 KB
• Stars: 12
• Watchers: 1
• Forks: 2
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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# cdk-appsync-typescript-resolver

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Constructs to transpile and bundle Typescript to valid AWS Appsync's JS resolvers

[![View on Construct Hub](https://constructs.dev/badge?package=cdk-appsync-typescript-resolver)](https://constructs.dev/packages/cdk-appsync-typescript-resolver)

# ✨ Constructs

- [TypescriptUnitResolver](src%2Flib%2FJSExpressPipelineResolver.ts) - Unit resolver with typescript source

- [AppsyncTypescriptFunction](src%2Flib%2FAppsyncTypescriptFunction.ts) - Appsync function with typescript source

# 🚀 Usage

- TypescriptUnitResolver

```typescript

import { TypescriptUnitResolver } from 'cdk-appsync-typescript-resolver'

const resolver = new TypescriptUnitResolver(stack, "DemoResolver", {

    api: new appsync.GraphqlApi(...),

    typeName: "Query",

    fieldName: "hello",

    path: path.join(__dirname, "path", "to", "file.ts"),

    sourceMap: true,

});

```

- AppsyncTypescriptFunction

```typescript

import { AppsyncTypescriptFunction } from 'cdk-appsync-typescript-resolver'

...

const appsyncFunction = new AppsyncTypescriptFunction(stack, "TSDemoFunction", {

    name: "TSDemoFunction",

    api: new appsync.GraphqlApi(...),

    path: path.join(__dirname, "path", "to", "file.ts"),

    dataSource: new appsync.DynamoDbDataSource(...),

    sourceMap: true,

});

```

> Tip: Use [GraphQL Code Generator](https://the-guild.dev/graphql/codegen) to generate Typescript types from GraphQL schema(s) to use in resolvers

Checkout the demo project for examples [cdk-appsync-typescript-resolver-demo](https://github.com/sudokar/cdk-appsync-typescript-resolver-demo)

# References

[JavaScript resolvers overview](https://docs.aws.amazon.com/appsync/latest/devguide/resolver-reference-overview-js.html)

[Bundling, TypeScript, and source maps](https://docs.aws.amazon.com/appsync/latest/devguide/resolver-reference-overview-js.html#additional-utilities)

[GraphQL Code Generator](https://the-guild.dev/graphql/codegen)