javascript - "Serverless-offline: route not found."在离线模式下运行 AWS Lambda 函数

Question

这个问题与Serverless offline not getting route 几乎相同，但由于没有回答我再次询问。我正在尝试关注这篇文章，https://medium.com/@awesome1888/how-to-use-serverless-locally-with-webpack-and-docker-5e268f71715 ，关于如何使用无服务器部署 Lambda 函数。

我有一个具有以下结构的目录:

> tree -I node_modules
.
├── package-lock.json
├── package.json
├── serverless.yml
├── src
│   ├── handler.js
│   └── index.js
└── webpack.config.js

serverless.yml 读取

service: my-first-lambda

plugins:
  - serverless-webpack
  - serverless-offline

provider:
  name: aws
  runtime: nodejs10.x
  region: us-east-1
  stage: dev

functions:
  hello:
    handler: src/handler.main
    events:
      - http:
        path: /hello
        method: any

custom:
  webpack:
    includeModules: true

src/index.js读取

import moment from 'moment';

const handler = async (event, context) => {
  const body = await new Promise((resolve) => {
    setTimeout(() => {
      resolve(`Hello, this is your lambda speaking. Today is ${moment().format('dddd')}`)
    }, 2000);
  });
  return {
    statusCode: 200,
    body,
  };
}

export default handler;

src/handler.js 读取

export { default as main } from './index';

和webpack.config.js读取

const path = require("path");
const nodeExternals = require("webpack-node-externals");
const slsw = require("serverless-webpack");

module.exports = {
  entry: slsw.lib.entries,
  target: "node",
  mode: slsw.lib.webpack.isLocal ? "development" : "production",
  externals: [nodeExternals()],
  output: {
    libraryTarget: "commonjs",
    path: path.join(__dirname, ".webpack"),
    filename: "[name].js"
  },
  module: {
    rules: [
      {
        test: /\.js$/,
        use: [
          {
            loader: "babel-loader",
            options: {
              presets: ["@babel/preset-env"],
              plugins: ["@babel/plugin-proposal-object-rest-spread"]
            }
          }
        ]
      }
    ]
  }
};

问题是当我在离线模式下启动该功能时，它似乎只有一条非常具体的路线:

> 
npx serverless offline start --region us-east-1 --noTimeout --port 3000 --host 0.0.0.0
Serverless: Bundling with Webpack...
Time: 1203ms
Built at: 08/30/2019 2:35:10 PM
         Asset      Size       Chunks             Chunk Names
src/handler.js  6.81 KiB  src/handler  [emitted]  src/handler
Entrypoint src/handler = src/handler.js
[./src/handler.js] 42 bytes {src/handler} [built]
[./src/index.js] 1.64 KiB {src/handler} [built]
[moment] external "moment" 42 bytes {src/handler} [built]
Serverless: Watching for changes...
Serverless: Starting Offline: dev/us-east-1.

Serverless: Routes for hello:
Serverless: POST /{apiVersion}/functions/my-first-lambda-dev-hello/invocations

Serverless: Offline [HTTP] listening on http://0.0.0.0:3000
Serverless: Enter "rp" to replay the last request

如果我去http://localhost:3000/hello ，我得到这样的回应:

{"statusCode":404,"error":"Serverless-offline: route not found.","currentRoute":"get - /hello","existingRoutes":["post - /{apiVersion}/functions/my-first-lambda-dev-hello/invocations"]}

知道为什么这不起作用吗？ (我仔细阅读了 https://serverless.com/framework/docs/ 但无法快速找到答案)。

Answer 1

我有这个问题，如果有人遇到它，这个 github comment fixed my issue .

您可以运行 $ sls offline start --noPrependStageInUrl 或将以下内容添加到您的 serverless.yml 文件

custom:
  serverless-offline:
    noPrependStageInUrl: true

根据评论:

I had this problem with anything 6+, this was due to the fact that it now defaults to appending the staging name to the url path. To revert to the old way, you need to add --noPrependStageInUrl to the cli or in the serverless file custom: serverless-offline noPrependStageInUrl: true to revert to previous setting. I'm testing it his out but @dherault the functionality is not reflecting what is actually happening in AWS.

我使用的是 serverless-offline: "6.7.0" 并且我的 index.handler 如下:

const serverless = require("serverless-http");
const express = require("express");
const app = express();

app.get("/", function (req, res) {
  res.send("Hello World!");
});

module.exports.handler = serverless(app);

还有我的serverless.yml

plugins:
  - serverless-offline

custom:
  serverless-offline:
    noPrependStageInUrl: true

provider:
  name: aws
  runtime: nodejs12.x
  stage: dev
  region: eu-west-2

functions:
  app:
    handler: src/index.handler
    events:
      - http: ANY /
      - http: "ANY {proxy+}"

抱歉，这不是一个很好的答案，但希望有人会遇到这个问题，这是解决他们问题的方法。