cdk-appsync-typescript-resolver

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

✨ Constructs

• AppsyncTypescriptFunction - To transpile and bundle Typescript
• TSExpressPipelineResolver - To use AppsyncTypescriptFunction with boilerplate code

🚀 Usage

• AppsyncTypescriptFunction

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,
});

• TSExpressPipelineResolver

import { TSExpressPipelineResolver } from 'cdk-appsync-typescript-resolver'
...
const resolver = new TSExpressPipelineResolver(testStack, "DemoResolver", {
    api: new appsync.GraphqlApi(...),
    typeName: "Query",
    fieldName: "hello",
    tsFunction: new AppsyncTypescriptFunction(...),
});

Tip: Use GraphQL Code Generator to generate Typescript types from GraphQL schema(s) to use in resolvers

Checkout the demo project for examples cdk-appsync-typescript-resolver-demo

References

JavaScript resolvers overview

Bundling, TypeScript, and source maps

GraphQL Code Generator