【云原生】给我 10 分钟，带你上手一个 AWS serverless web server

$ npm install -g @aws-amplify/cli

$ amplify configure

$ npx create-react-app myapp

$ cd myapp

$ npm install aws-amplify

$ amplify init

$ amplify add api

? Please select from one of the below mentioned services: REST
? Provide a friendly name for your resource to be used as a label for this category in the project: myapi
? Provide a path (e.g., /items): /items (or whatever path you would like)
? Choose a Lambda source: Create a new Lambda function
? Provide a friendly name for your resource to be used as a label for this category in the project: mylambda
? Provide the AWS Lambda function name: mylambda
? Choose the function template that you want to use: Serverless express function
? Do you want to access other resources created in this project from your Lambda function? N
? Do you want to edit the local lambda function now? N
? Restrict API access: N
? Do you want to add another path? N

const awsServerlessExpress = require('aws-serverless-express');
const app = require('./app');

const server = awsServerlessExpress.createServer(app);

exports.handler = (event, context) => {
  console.log(`EVENT: ${JSON.stringify(event)}`);
  awsServerlessExpress.proxy(server, event, context);
};

// amplify/backend/function/mylambda/src/app.js
app.get('/items', function(req, res) {
  const items = ['hello', 'world']
  res.json({ success: 'get call succeed!', items });
});

$ cd amplify/backend/function/mylambda/src && npm install && cd ../../../../../

$ amplify function invoke mylambda

$ curl http://localhost:3000/items
# {"success":"get call succeed!","items":["hello","world"]}%

$ amplify push

// get request
const items = await API.get('myapi', '/items')

// post with data
const data = { body: { items: ['some', 'new', 'items'] } }
await API.post('myapi', '/items', data)

$ amplify update api