Another rework
This commit is contained in:
Gregory Campbell
@@ -1,13 +0,0 @@
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import { defineBackend } from '@aws-amplify/backend'
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import { goFunction } from './functions/go/resource.ts'
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import { pythonFunction } from './functions/python/resource.ts'
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import { rustFunction } from './functions/rust/resource.ts'
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defineBackend({
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goFunction,
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pythonFunction,
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rustFunction
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})
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@@ -1,9 +0,0 @@
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import { defineFunction } from '@aws-amplify/backend'
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export const goFunction = defineFunction({
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name: 'go-functions',
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entry: '../../../functions/go-functions/main.go', // ← Points to your Go file
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runtime: 'provided.al2023' // ← Custom runtime for Go
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})
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@@ -1,8 +0,0 @@
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import { defineFunction } from '@aws-amplify/backend'
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export const pythonFunction = defineFunction({
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name: 'python-function',
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entry: '../../../functions/python-function/handler.py', // ← Points to external folder
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runtime: 'python3.12'
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})
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@@ -1,8 +0,0 @@
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import { defineFunction } from '@aws-amplify/backend'
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export const rustFunction = defineFunction({
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name: 'rust-function',
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entry: '../../../functions/rust-function/src/main.rs', // ← Points to external folder
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runtime: 'provided.al2'
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})
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@@ -0,0 +1,190 @@
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// infrastructure/api-gateway-stack.ts
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import { Stack, StackProps, CfnOutput } from 'aws-cdk-lib'
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import { Construct } from 'constructs'
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import * as apigateway from 'aws-cdk-lib/aws-apigateway'
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import * as lambda from 'aws-cdk-lib/aws-lambda'
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import * as logs from 'aws-cdk-lib/aws-logs'
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import * as iam from 'aws-cdk-lib/aws-iam'
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export interface ApiGatewayStackProps extends StackProps {
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// Reference to your Lambda functions from another stack
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goFunction: lambda.Function
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pythonFunction: lambda.Function
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rustFunction: lambda.Function
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}
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export class ApiGatewayStack extends Stack {
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public readonly api: apigateway.RestApi
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public readonly apiUrl: string
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constructor(scope: Construct, id: string, props: ApiGatewayStackProps) {
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super(scope, id, props)
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// Create CloudWatch Log Group for API Gateway
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const logGroup = new logs.LogGroup(this, 'ApiGatewayLogGroup', {
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logGroupName: `/aws/apigateway/${id}`,
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retention: logs.RetentionDays.ONE_WEEK,
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})
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// Create API Gateway
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this.api = new apigateway.RestApi(this, 'MyApi', {
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restApiName: 'My Multi-Language API',
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description: 'API Gateway for Go, Python, and Rust Lambda functions',
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// Enable CORS for frontend integration
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defaultCorsPreflightOptions: {
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allowOrigins: [
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'http://localhost:3000', // Local development
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'https://your-amplify-domain.amplifyapp.com', // Your Amplify domain
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],
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allowMethods: ['GET', 'POST', 'PUT', 'DELETE', 'OPTIONS'],
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allowHeaders: [
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'Content-Type',
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'X-Amz-Date',
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'Authorization',
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'X-Api-Key',
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'X-Amz-Security-Token',
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],
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},
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// Deploy automatically
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deploy: true,
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deployOptions: {
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stageName: 'prod',
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loggingLevel: apigateway.MethodLoggingLevel.INFO,
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dataTraceEnabled: true,
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metricsEnabled: true,
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accessLogDestination: new apigateway.LogGroupLogDestination(logGroup),
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accessLogFormat: apigateway.AccessLogFormat.jsonWithStandardFields(),
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},
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// Enable endpoint configuration
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endpointConfiguration: {
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types: [apigateway.EndpointType.REGIONAL],
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},
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})
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// Create API resources and methods
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this.createGoEndpoints(props.goFunction)
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this.createPythonEndpoints(props.pythonFunction)
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this.createRustEndpoints(props.rustFunction)
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// Add a health check endpoint
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this.createHealthEndpoint()
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// Store API URL for output
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this.apiUrl = this.api.url
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// Output the API URL
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new CfnOutput(this, 'ApiUrl', {
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value: this.apiUrl,
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description: 'API Gateway URL',
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exportName: `${this.stackName}-ApiUrl`,
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})
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// Output individual endpoint URLs
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new CfnOutput(this, 'GoEndpoint', {
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value: `${this.apiUrl}go`,
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description: 'Go Lambda endpoint',
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})
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new CfnOutput(this, 'PythonEndpoint', {
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value: `${this.apiUrl}python`,
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description: 'Python Lambda endpoint',
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})
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new CfnOutput(this, 'RustEndpoint', {
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value: `${this.apiUrl}rust`,
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description: 'Rust Lambda endpoint',
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})
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}
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private createGoEndpoints(goFunction: lambda.Function) {
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// Create /go resource
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const goResource = this.api.root.addResource('go')
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// Create Lambda integration
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const goIntegration = new apigateway.LambdaIntegration(goFunction, {
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requestTemplates: { 'application/json': '{ "statusCode": "200" }' },
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proxy: true, // Enable Lambda proxy integration
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})
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// Add methods
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goResource.addMethod('GET', goIntegration)
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goResource.addMethod('POST', goIntegration)
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// Add sub-resources if needed
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const goHealthResource = goResource.addResource('health')
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goHealthResource.addMethod('GET', goIntegration)
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}
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private createPythonEndpoints(pythonFunction: lambda.Function) {
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// Create /python resource
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const pythonResource = this.api.root.addResource('python')
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// Create Lambda integration
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const pythonIntegration = new apigateway.LambdaIntegration(pythonFunction, {
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proxy: true,
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})
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// Add methods
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pythonResource.addMethod('GET', pythonIntegration)
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pythonResource.addMethod('POST', pythonIntegration)
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pythonResource.addMethod('PUT', pythonIntegration)
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// Add sub-resources
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const pythonDataResource = pythonResource.addResource('data')
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pythonDataResource.addMethod('GET', pythonIntegration)
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pythonDataResource.addMethod('POST', pythonIntegration)
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}
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private createRustEndpoints(rustFunction: lambda.Function) {
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// Create /rust resource
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const rustResource = this.api.root.addResource('rust')
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// Create Lambda integration
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const rustIntegration = new apigateway.LambdaIntegration(rustFunction, {
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proxy: true,
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})
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// Add methods
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rustResource.addMethod('GET', rustIntegration)
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rustResource.addMethod('POST', rustIntegration)
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rustResource.addMethod('DELETE', rustIntegration)
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// Add sub-resources
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const rustProcessResource = rustResource.addResource('process')
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rustProcessResource.addMethod('POST', rustIntegration)
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}
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private createHealthEndpoint() {
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// Create a simple health check endpoint
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const healthResource = this.api.root.addResource('health')
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// Mock integration for health check (no Lambda needed)
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const healthIntegration = new apigateway.MockIntegration({
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integrationResponses: [{
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statusCode: '200',
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responseTemplates: {
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'application/json': JSON.stringify({
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status: 'healthy',
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timestamp: '$context.requestTime',
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requestId: '$context.requestId'
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})
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},
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}],
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requestTemplates: {
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'application/json': '{ "statusCode": 200 }'
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},
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})
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healthResource.addMethod('GET', healthIntegration, {
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methodResponses: [{
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statusCode: '200',
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responseModels: {
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'application/json': apigateway.Model.EMPTY_MODEL,
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},
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}],
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})
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}
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}
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@@ -0,0 +1,28 @@
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// infrastructure/app.ts
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import * as cdk from 'aws-cdk-lib'
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import { LambdaStack } from './lambda-stack'
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import { ApiGatewayStack } from './api-gateway-stack'
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const app = new cdk.App()
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// Create Lambda functions first
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const lambdaStack = new LambdaStack(app, 'LambdaStack', {
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env: {
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account: process.env.CDK_DEFAULT_ACCOUNT,
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region: process.env.CDK_DEFAULT_REGION,
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},
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})
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// Create API Gateway and connect to Lambda functions
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const apiStack = new ApiGatewayStack(app, 'ApiGatewayStack', {
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goFunction: lambdaStack.goFunction,
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pythonFunction: lambdaStack.pythonFunction,
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rustFunction: lambdaStack.rustFunction,
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env: {
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account: process.env.CDK_DEFAULT_ACCOUNT,
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region: process.env.CDK_DEFAULT_REGION,
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},
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})
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// Ensure Lambda stack is deployed before API Gateway
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apiStack.addDependency(lambdaStack)
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@@ -0,0 +1,42 @@
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// infrastructure/lambda-stack.ts
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import { Stack, StackProps, Duration } from 'aws-cdk-lib'
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import { Construct } from 'constructs'
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import * as lambda from 'aws-cdk-lib/aws-lambda'
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export class LambdaStack extends Stack {
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public readonly goFunction: lambda.Function
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public readonly pythonFunction: lambda.Function
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public readonly rustFunction: lambda.Function
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constructor(scope: Construct, id: string, props?: StackProps) {
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super(scope, id, props)
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// Go function
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this.goFunction = new lambda.Function(this, 'GoFunction', {
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runtime: lambda.Runtime.PROVIDED_AL2023,
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handler: 'bootstrap',
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code: lambda.Code.fromAsset('../functions/go-functions'),
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timeout: Duration.minutes(15),
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memorySize: 1024,
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})
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// Python function
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this.pythonFunction = new lambda.Function(this, 'PythonFunction', {
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runtime: lambda.Runtime.PYTHON_3_12,
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handler: 'handler.handler',
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code: lambda.Code.fromAsset('../functions/python-function'),
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timeout: Duration.minutes(5),
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memorySize: 512,
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})
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// Rust function
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this.rustFunction = new lambda.Function(this, 'RustFunction', {
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runtime: lambda.Runtime.PROVIDED_AL2023,
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handler: 'bootstrap',
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code: lambda.Code.fromAsset('../functions/rust-function'),
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timeout: Duration.minutes(10),
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memorySize: 2048,
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})
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}
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}
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+17
@@ -0,0 +1,17 @@
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// In your frontend
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const API_BASE_URL = 'https://your-api-id.execute-api.region.amazonaws.com/prod'
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// Call Go function
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const goResponse = await fetch(`${API_BASE_URL}/go/health`)
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// Call Python function
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const pythonResponse = await fetch(`${API_BASE_URL}/python/data`, {
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method: 'POST',
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body: JSON.stringify({ data: 'example' })
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})
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// Call Rust function
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const rustResponse = await fetch(`${API_BASE_URL}/rust/process`, {
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method: 'POST',
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body: JSON.stringify({ input: 'process this' })
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})
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@@ -1,2 +0,0 @@
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def test_placeholder():
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assert True
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@@ -1,3 +0,0 @@
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pytest>=8.0.0
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requests>=2.31.0
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httpx>=0.27.0
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