api_b.ts

import { CfnOutput } from '@aws-cdk/core';
import { _b } from '@ctx-core/object';
import { ctx_type } from './ctx_type';
import { host_b } from './host_b';
import { lambdaVersion_b } from './lambdaVersion_b';
import { lambdaFunction_b } from './lambdaFunction_b';
import {
  AwsIntegration,
  LambdaIntegration, LambdaRestApi, MethodLoggingLevel,
} from '@aws-cdk/aws-apigateway';
import { assets_bucket_b } from './assets_bucket_b';
import { assets_role_b } from './assets_role_b';
export const api_b = _b(
  'api', (ctx: ctx_type) => {
    const { construct } = ctx;
    const host = host_b(ctx);
    const lambdaFunction = lambdaFunction_b(ctx);
    const lambdaVersion = lambdaVersion_b(ctx);
    const assets_bucket = assets_bucket_b(ctx);
    const assets_role = assets_role_b(ctx);
    const api = new LambdaRestApi(construct, `${host}-api`, {
      handler: lambdaVersion.latestVersion,
      proxy: false,
      deploy: true,
      deployOptions: {
        loggingLevel: MethodLoggingLevel.INFO,
        dataTraceEnabled: true,
      },
      // The first value is ignored & the ~1 is an escaped /
      binaryMediaTypes: [
        '*/*', '*~1*',
      ],
    });
    const assets_integration = new AwsIntegration({
      service: 's3',
      path: `${assets_bucket.bucketName}`,
      options: {
        credentialsRole: assets_role,
      },
    });
    const client_integration = new AwsIntegration({
      service: 's3',
      path: `${assets_bucket.bucketName}`,
      options: {
        credentialsRole: assets_role,
      },
    });
    const lambda_integration = new LambdaIntegration(lambdaFunction, {
      proxy: true,
    });
    api.root.addMethod('ANY', lambda_integration);
    api.root.addResource('assets').addResource('{proxy+}')
       .addMethod('ANY', assets_integration);
    api.root.addResource('client').addResource('{proxy+}')
       .addMethod('ANY', client_integration);
    api.root.addResource('{proxy+}')
       .addMethod('ANY', lambda_integration);
    new CfnOutput(construct, 'api.url', {
      value: api.url
    });
    return api;
  });

assets_role_b.ts

import { _b } from '@ctx-core/object';
import { ctx_type } from './ctx_type';
import { Role, ServicePrincipal } from '@aws-cdk/aws-iam';
export const assets_role_b = _b(
  'assets_role', (ctx: ctx_type) => {
    const { construct } = ctx;
    const assets_role = new Role(construct, 'assets-role', {
      assumedBy: new ServicePrincipal('apigateway.amazonaws.com'),
    });
    return assets_role;
  });