feat: add nodejs sample

samples/node/.dockerignore

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+node_modules

samples/node/.gitignore

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+node_modules

samples/node/Dockerfile

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+FROM caian/sample-devcontainer:latest AS devcontainer
+
+ARG DOCKER_DEFAULT_USER=turing
+ENV DOCKER_DEFAULT_USER $DOCKER_DEFAULT_USER
+
+USER ${DOCKER_DEFAULT_USER}
+WORKDIR /home/${DOCKER_DEFAULT_USER}
+
+COPY entrypoint.sh .
+RUN sudo chmod +x entrypoint.sh
+
+
+FROM devcontainer AS dependencies
+USER root
+COPY package.json .
+COPY package-lock.json .
+
+RUN eval "$(/home/linuxbrew/.linuxbrew/bin/brew shellenv)" \
+    && npm install --only=production \
+    && rm package.json package-lock.json
+
+
+FROM dependencies AS run
+COPY index.js .
+RUN chown -R "${DOCKER_DEFAULT_USER}:${DOCKER_DEFAULT_USER}" "/home/${DOCKER_DEFAULT_USER}"
+
+USER ${DOCKER_DEFAULT_USER}
+ENTRYPOINT ["./entrypoint.sh"]

samples/node/entrypoint.sh

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+#!/bin/bash
+
+eval "$(/home/linuxbrew/.linuxbrew/bin/brew shellenv)"
+
+node index.js "$@"

samples/node/index.js

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+const axios = require('axios')
+const dayjs = require('dayjs')
+
+const capitalize = s => s && s[0].toUpperCase() + s.slice(1)
+
+const getDate = (daysToAdd = 0) => dayjs().add(daysToAdd, 'days').format('YYYY-MM-DD')
+
+function getCityArg() {
+    const fallback = 'manhattan'
+
+    const city = (process.argv.length < 3 ? fallback : process.argv[2]).trim()
+    return city.length > 0 ? city : fallback
+}
+
+async function getWeatherInfoOf(city) {
+    const { data } = await axios.get(`https://goweather.herokuapp.com/weather/${city}`)
+    const forecast = [{ day: '0', temperature: data.temperature, wind: data.wind }, ...data.forecast]
+
+    return forecast.map((f) => ({ day: parseInt(f.day), temp: f.temperature, wind: f.wind }))
+}
+
+async function main() {
+    const city = getCityArg()
+    const forecast = await getWeatherInfoOf(city)
+
+    console.log(`Weather forecast for ${capitalize(city)} city\n`)
+    for (const weather of forecast) {
+        console.log(` | ${getDate(weather.day)} ~ ${weather.temp}, ${weather.wind}`)
+    }
+}
+
+main().catch((e) => console.error(e))

samples/node/package.json

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+{
+  "name": "node-weather-app",
+  "version": "0.1.0",
+  "main": "index.js",
+  "author": "Caian Ertl <[email protected]>",
+  "license": "CC0-1.0",
+  "dependencies": {
+    "axios": "^0.27.2",
+    "dayjs": "^1.11.2"
+  }
+}