Merge branch 'defineApi_construct' of https://github.com/bennettsf/amplify-backend into testing-branch

Author: roryhackney

packages/rest-api-construct/src/construct.ts

@@ -1,22 +1,49 @@
 import { Construct } from 'constructs';
-import { aws_sqs as sqs } from 'aws-cdk-lib';
-
-export type ConstructCognitoProps = {
-  includeQueue?: boolean;
-};
+import * as lambda from 'aws-cdk-lib/aws-lambda';
+import * as apigateway from 'aws-cdk-lib/aws-apigateway';
+import { RestApiConstructProps } from './types.js';
 
 /**
- * Hello world construct implementation
+ * Rest API construct for Amplify Backend
  */
-export class AmplifyConstruct extends Construct {
+export class RestApiConstruct extends Construct {
+  public readonly api: apigateway.RestApi;
   /**
-   * Create a new AmplifyConstruct
+   * Create a new RestApiConstruct
    */
-  constructor(scope: Construct, id: string, props: ConstructCognitoProps = {}) {
+  constructor(scope: Construct, id: string, props: RestApiConstructProps) {
     super(scope, id);
 
-    if (props.includeQueue) {
-      new sqs.Queue(this, 'placeholder');
+    // Create a new Lambda function for the API Gateway
+    const handler = new lambda.Function(this, 'handler', {
+      runtime: lambda.Runtime.NODEJS_18_X,
+      handler: 'index.handler',
+      code: lambda.Code.fromAsset(props.lambdaEntry),
+    });
+
+    // Create a new API Gateway REST API with the specified name
+    this.api = new apigateway.RestApi(this, 'RestApi', {
+      restApiName: props.apiName,
+    });
+
+    // Create a resource for the specified path
+    const resource = this.addNestedResource(this.api.root, props.path);
+
+    // Add methods to the resource for each HTTP method specified in props.routes
+    for (const method of props.routes) {
+      resource.addMethod(method, new apigateway.LambdaIntegration(handler));
     }
   }
+
+  /**
+   * Adds nested resources to the API based on the provided path.
+   */
+  private addNestedResource(
+    root: apigateway.IResource,
+    path: string,
+  ): apigateway.IResource {
+    return path.split('/').reduce((resource, part) => {
+      return resource.getResource(part) ?? resource.addResource(part);
+    }, root);
+  }
 }

packages/rest-api-construct/src/types.ts

@@ -0,0 +1,15 @@
+export type RestApiConstructProps = {
+  apiName: string;
+  path: string;
+  routes: HttpMethod[];
+  lambdaEntry: string;
+};
+
+export type HttpMethod =
+  | 'GET'
+  | 'POST'
+  | 'PUT'
+  | 'DELETE'
+  | 'PATCH'
+  | 'HEAD'
+  | 'OPTIONS';