\u5728dev\uff08\u672c\u5730\u786e\u8ba4\uff09\u6216deploy\u4e4b\u524d\uff0c\u6267\u884cLayer\u6587\u4ef6\u5939\u7684\u811a\u672cpre.ts\u3002\u6839\u636enpm\u7684\u89c4\u5219\uff0c\u4f7f\u7528\u4ee5pre\u811a\u672c\u540d\u5b9a\u4e49\u7684\u811a\u672c\uff0c\u5728\u76ee\u6807\u811a\u672c\u6267\u884c\u4e4b\u524d\u6267\u884c\uff0c\u56e0\u6b64\u5229\u7528\u8fd9\u4e00\u70b9\u3002cdk\/package.json
\n{
\n“scripts”: {
\n“createLayer”: “ts-node lib\/process\/pre.ts”,
\n“predev”: “npm run createLayer”,
\n“dev”: “sam-beta-cdk local start-api”,
\n“predeploy”: “npm run createLayer”,
\n“deploy”: “cdk deploy -c @aws-cdk\/core:newStyleStackSynthesis=true –profile produser”
\n}
\n}<\/p>\ncdk\/lib\/process\/pre.ts
\nimport { bundleNpm } from “.\/setup”;<\/p>\n
\/\/ \u6267\u884c
\nbundleNpm();<\/p>\n
cdk\/lib\/process\/setup.ts
\nimport * as childProcess from ‘child_process’;
\nimport * as fs from ‘fs-extra’;
\nimport * as path from ‘path’<\/p>\n
const nodeModulesPath = ‘.\/bundle-node_modules’;
\nconst commonModulesPath = ‘.\/bundle-common’;
\nexport const NODE_LAMBDA_LAYER_DIR = path.resolve(process.cwd(), nodeModulesPath);
\nexport const COMMON_LAMBDA_LAYER_DIR = path.resolve(process.cwd(), commonModulesPath);<\/p>\n
const NODE_LAMBDA_LAYER_RUNTIME_DIR_NAME = `nodejs`;
\nconst runtimeDirName = path.resolve(process.cwd(), `${nodeModulesPath}\/${NODE_LAMBDA_LAYER_RUNTIME_DIR_NAME}`);
\nconst distFilePath = (file: string) => path.resolve(process.cwd(), `${nodeModulesPath}\/${NODE_LAMBDA_LAYER_RUNTIME_DIR_NAME}\/${file}`)
\nconst srcFilePath = (file: string) => path.resolve(`${process.cwd()}\/..\/${file}`)<\/p>\n
export const bundleNpm = () => {
\ncreateNodeModules();
\n};<\/p>\n
const createNodeModules = () => {
\n\/\/ \u521b\u5efa\u6346\u7ed1\u76ee\u5f55
\ncopyPackageJson();<\/p>\n
\/\/ \u5b89\u88c5package.json\uff08\u4ec5\u6d4b\u8bd5\uff09
\nchildProcess.execSync(`npm install –production`, {
\ncwd: getModulesInstallDirName(),
\nenv: { …process.env },
\n});
\n}<\/p>\n
const copyPackageJson = () => {
\nfs.mkdirsSync(runtimeDirName);
\n[‘package.json’]
\n.map(file => fs.copyFileSync(srcFilePath(file), distFilePath(file)));
\n};<\/p>\n
\u4e3a\u4e86\u786e\u4fdd\u4e0d\u5c06\u4f7f\u7528externalModules\u7ba1\u7406\u7684node_modules\u7684\u811a\u672c\u5305\u542b\u5728bundle\u4e2d\u3002\u5728\u8fd9\u79cd\u60c5\u51b5\u4e0b\uff0c\u662fdate-fns\u3002<\/p>\n
cdk\/lib\/cdk-stack.ts
\nimport { Stack, StackProps } from ‘aws-cdk-lib’;
\nimport { NodejsFunction } from ‘aws-cdk-lib\/aws-lambda-nodejs’;
\nimport * as lambda from ‘aws-cdk-lib\/aws-lambda’;
\nimport { Construct } from ‘constructs’;
\nimport { LambdaIntegration, RestApi } from ‘aws-cdk-lib\/aws-apigateway’;
\nimport { COMMON_LAMBDA_LAYER_DIR, NODE_LAMBDA_LAYER_DIR } from ‘.\/process\/setup’;<\/p>\n
export class CdkStack extends Stack {
\nconstructor(scope: Construct, id: string, props?: StackProps) {
\nsuper(scope, id, props);
\nconst nodeModulesLayer = new lambda.LayerVersion(this, ‘NodeModulesLayer’,
\n{
\ncode: lambda.AssetCode.fromAsset(NODE_LAMBDA_LAYER_DIR),
\ncompatibleRuntimes: [lambda.Runtime.NODEJS_14_X]
\n}
\n);<\/p>\n
const helloLambda = new NodejsFunction(this, ‘helloLambda’, {
\nruntime: lambda.Runtime.NODEJS_14_X,
\nentry: `..\/src\/handler\/api\/hello.ts`,
\nlayers: [nodeModulesLayer],
\nbundling: {
\nexternalModules: [
\n‘aws-sdk’, \/\/ \u4f7f\u7528Lambda\u8fd0\u884c\u65f6\u4e2d\u53ef\u7528\u7684’aws-sdk’
\n‘date-fns’, \/\/ \u9700\u8981\u653e\u5165Layer\u4e2d\u7684\u6a21\u5757
\n],<\/p>\n
}
\n});
\nconst api = new RestApi(this, ‘ServerlessRestApi’, { cloudWatchRole: false });
\napi.root.addResource(‘hello’).addMethod(‘GET’, new LambdaIntegration(helloLambda));
\n}
\n}<\/p>\n<\/details>\n
\u5c06\u5b9e\u7528\u7a0b\u5e8f\u8fdb\u884c\u5206\u5c42\u5316<\/h2>\n
\u5229\u7528\/opt\/nodejs\/\u4e0b\u7684\u8def\u5f84\u6765\u914d\u7f6e\u5c42\u3002
\n\u914d\u7f6etsconfig\u548cesbuild\u4ee5\u786e\u4fdd\u80fd\u591f\u8fdb\u884c\u8f6c\u8bd1\u3002<\/p>\n
{<\/span>\r\n \"compilerOptions\": {\r\n \/\/ \u7701\u7565\r\n \"baseUrl\": \".\",\r\n \"paths\": {\r\n+ \"\/opt\/nodejs\/*\": [\"src\/common\/*\"],\r\n<\/span> \"@\/*\" : [\".\/src\/*\"]\r\n }\r\n }\r\n}<\/span>\r\n<\/code><\/pre>\n\/\/<\/span> \u7701\u7565\r\n const helloLambda = new NodejsFunction(this, 'helloLambda', {\r\n runtime: lambda.Runtime.NODEJS_14_X,\r\n entry: `..\/src\/handler\/api\/hello.ts`,\r\n layers: [nodeModulesLayer, commonModulesLayers],\r\n bundling: {\r\n externalModules: [\r\n 'aws-sdk', \/\/ Use the 'aws-sdk' available in the Lambda runtime\r\n 'date-fns', \/\/ Layrer\u306b\u5165\u308c\u3066\u304a\u304d\u305f\u3044\u30e2\u30b8\u30e5\u30fc\u30eb\r\n+ '\/opt\/nodejs\/*'\r\n<\/span> ],\r\n\r\n }\r\n });\r\n\/\/<\/span> \u7701\u7565\r\n<\/code><\/pre>\n\u6b64\u6642\u7684\u6587\u4ef6\u593e\u7d50\u69cb\u5982\u4e0b\u6240\u793a\u3002<\/p>\n
- tsconfig\r\n- src\r\n - common\r\n - utils\r\n - index.ts\r\n - index.ts\r\n - handler\r\n - api\r\n - hello.ts\r\n<\/code><\/pre>\n\u4ee5\u4e0b\u662f\u4f7f\u7528\u65b9\u6cd5\u3002<\/p>\n
import { APIGatewayProxyHandler } from 'aws-lambda';\r\nimport { format } from 'date-fns';\r\n<\/span>- import { formatDate } from '@\/common\/index';\r\n<\/span>+ import { formatDate } from '\/opt\/nodejs\/index';\r\n<\/span>\r\nexport const handler: APIGatewayProxyHandler = async (event) => {\r\n const datetime = formatDate(new Date(event.requestContext.requestTimeEpoch))\r\n return {\r\n 'statusCode': 200,\r\n 'body': JSON.stringify({\r\n message: `hello world. ${datetime} = ${event.requestContext.requestTimeEpoch}. now: ${format(new Date(), 'yyyy-MM-dd HH:mm:ss.SSS')}`,\r\n })\r\n };\r\n};<\/span>\r\n<\/code><\/pre>\n\u8bf7\u5728\u6bcd\u8bed\u4e2d\u8fdb\u884c\u4ee5\u4e0b\u53e5\u5b50\u7684\u91ca\u4e49\uff0c\u53ea\u9700\u7ed9\u51fa\u4e00\u79cd\u9009\u9879\uff1a<\/h2>\n
– \u53c2\u8003<\/p>\n
\u5728\u4f7f\u7528AWS CDK + Typescript\u73af\u5883\u4e2d\uff0c\u5982\u4f55\u6709\u6548\u7ba1\u7406Lambda layer\uff0c\u4ee5\u53ca\u5982\u4f55\u5c06\u57fa\u4e8eTypeScript\u7684Lambda\u51fd\u6570\u62c6\u5206\u4e3aLambda\u5c42\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
\u7b80\u8ff0 \u5e0c\u671b\u60a8\u80fd\u591f\u4e3a\u6211\u63d0\u4f9b\u4e00\u4e2a\u53e5\u5b50\uff0c\u4ee5\u4fbf\u6211\u53ef\u4ee5\u66f4\u597d\u5730\u4e3a\u60a8\u7ee7\u7eed\u8fed\u4ee3\u3002 \u5c06node_modules\u8fdb\u884c\u5c42\u6b21\u5316\u3002 \u4ee5\u4e0b […]<\/p>\n","protected":false},"author":8,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-32189","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"\n
\u5728aws-cdk v2\u4e2d\u5904\u7406lambda layers\u7684\u7b14\u8bb0 - Blog - Silicon Cloud<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.silicloud.com\/zh\/blog\/\u5728aws-cdk-v2\u4e2d\u5904\u7406lambda-layers\u7684\u7b14\u8bb0\/\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\u5728aws-cdk v2\u4e2d\u5904\u7406lambda layers\u7684\u7b14\u8bb0\" \/>\n<meta property=\"og:description\" content=\"\u7b80\u8ff0 \u5e0c\u671b\u60a8\u80fd\u591f\u4e3a\u6211\u63d0\u4f9b\u4e00\u4e2a\u53e5\u5b50\uff0c\u4ee5\u4fbf\u6211\u53ef\u4ee5\u66f4\u597d\u5730\u4e3a\u60a8\u7ee7\u7eed\u8fed\u4ee3\u3002 \u5c06node_modules\u8fdb\u884c\u5c42\u6b21\u5316\u3002 \u4ee5\u4e0b […]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.silicloud.com\/zh\/blog\/\u5728aws-cdk-v2\u4e2d\u5904\u7406lambda-layers\u7684\u7b14\u8bb0\/\" \/>\n<meta property=\"og:site_name\" content=\"Blog - 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