Add Express

express/.gitignore

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+/node_modules

express/Dockerfile

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+FROM node:16
+WORKDIR /usr/src/app
+COPY ./index.js .
+COPY ./package*.json .
+RUN npm install
+EXPOSE 8000
+CMD [ "node", "index.js" ]

express/docker-compose.yaml

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+version: "3.9"
+services:
+  my-express:
+    image: my-express-container
+    container_name: my-express-api
+    build:
+      context: .
+      dockerfile: .
+    ports:
+      - "8001:8000"

express/index.js

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+const express = require('express')
+const app = express()
+
+/**
+ * サーバ起動
+ */
+const server = app.listen(8000, function () {
+  console.log('🚀 app started. port:' + server.address().port)
+})
+
+/**
+ * GET /test
+ */
+app.get('/test', async function (req, res, next) {
+  console.log('/test called')
+  res.send('/test called')
+})