axios、nuxt 和 docker 的奇怪行为 [英] Odd behavior with axios, nuxt, and docker

问题描述

我正在设置一个全栈应用程序，nuxt js 运行我的客户端代码，express js 运行我的 api，mysql 作为我的数据库.为了运行所有这些进程，我一直在使用 docker，更具体地说是 docker-compose.经过大量配置后，我已经让所有三个图像一起运行.但是有一个问题，我不知道如何使用 nuxt/axios 调用我的 api.

I am setting up a full-stack application with nuxt js running my client-side code, express js running my api, and mysql as my database. To run all of these processes I have been using docker, more specifically docker-compose. After much configuration, I have gotten all three images to run together. There is one problem though, I cannot figure out how to make calls to my api with nuxt/axios.

我尝试了许多不同的策略.我的 express api 可用于 http://localhost:8080 的外部世界"，因此我设置了 axios baseURL 以反映这一点.我在一些 nuxt js 中间件中运行了一些测试 axios get，并不断收到连接拒绝错误.我终于发现我可以使用 docker-compose 网络来连接我的前端和后端，所以我将我的 axios baseURL 重新映射到 http://api:8080(api 是我的 docker-compose 图像的名称)，并且在 nuxt js 中间件的 axios 请求中，它就像一个魅力.后来在写一些代码，想用vue方法发送axios请求.即使中间件中的 axios 请求正在使用这个 baseURL，方法中的这个新的 axios 请求给出了错误

I have tried many different tactics. My express api is available to the "outside-world" at http://localhost:8080, so I set up my axios baseURL to reflect that. I ran some test axios gets in some nuxt js middleware, and kept getting a connection refusal error. I finally figured out that I could use docker-compose networks to connect my frontend and backend, so I remapped my axios baseURL to http://api:8080 (api is the name of my docker-compose image), and in the axios request in the nuxt js middleware, it worked like a charm. Later, I was writing some code, and I wanted to send an axios request in a vue method. Even though the axios requests in the middleware were working with this baseURL, this new axios request in the method gave the error

commons.app.js:434 选项 http://api:8080/api/v1/get/colors net::ERR_NAME_NOT_RESOLVED

commons.app.js:434 OPTIONS http://api:8080/api/v1/get/colors net::ERR_NAME_NOT_RESOLVED

我尝试将我的 axios baseURL 改回 localhost，现在方法中的 axios 请求有效，但中间件中的 axios 请求不起作用.

I tried changing my axios baseURL back to localhost, and now the axios request in the methods works, but the axios request in the middleware doesn't work.

docker-compose.yml

docker-compose.yml

version: "3.3"

services:
  mysql:
    container_name: mysql
    image: mysql:5.7
    environment:
      MYSQL_USER: ${MYSQL_DEV_USER}
      MYSQL_PASSWORD: ${MYSQL_DEV_PASSWORD}
      MYSQL_DATABASE: ${MYSQL_DEV_DATABASE}
      MYSQL_ROOT_PASSWORD: ${MYSQL_DEV_ROOT_PASSWORD}
    ports:
      - 3306:3306
    restart: always
    volumes:
      - mysql_data:/var/lib/mysql
      - ./database/create_db.sql:/docker-entrypoint-initdb.d/create_db.sql
      - ./database/insert_db.sql:/docker-entrypoint-initdb.d/insert_db.sql

  api:
    container_name: api
    depends_on:
      - mysql
    links:
      - mysql
    build:
      context: ./backend
      dockerfile: Dockerfile-dev
    environment:
      NODE_ENV: development
      MYSQL_USER: ${MYSQL_DEV_USER}
      MYSQL_PASSWORD: ${MYSQL_DEV_PASSWORD}
      MYSQL_DATABASE: ${MYSQL_DEV_DATABASE}
      MYSQL_HOST_IP: mysql
      PORT: ${API_PORT}
      HOST: ${API_HOST}
    expose:
      - 8080
    ports:
      - 8080:8080
    volumes:
      - ./backend:/app
    command: npm run dev

  frontend:
    container_name: frontend
    depends_on:
      - api
    links:
      - api
    build:
      context: ./frontend
      dockerfile: Dockerfile-dev
    environment:
      NUXT_PORT: 3000
      NUXT_HOST: 0.0.0.0
      NODE_ENV: development
      GOOGLE_CLIENT_ID: ${GOOGLE_CLIENT_ID}
      API_HOST: api
      API_PORT: ${API_PORT}
      API_PREFIX: ${API_PREFIX}
    expose:
      - 3000
    ports:
      - 3000:3000
    volumes:
      - ./frontend:/app
    command: npm run dev

volumes:
  mysql_data:

nuxt.config.js

nuxt.config.js

axios: {
    baseURL: 'http://api:8080/api/v1'
  },

nuxt 中间件

export default async function({ app, redirect, error }) {
  try {
    const response = await app.$axios.$get('/auth/login')
    if (!response.success) {
      throw new Error(response.message)
    }
    redirect('/admin')
  } catch (err) {
    console.log(err)
    await app.$auth.logout()
    error({ message: err.message, statusCode: 500 })
  }
}

nuxt 方法

methods: {
    async test() {
      const colors = await this.$nuxt.$axios.$get('/get/colors')
      console.log(colors)
    }
}

非常感谢大家！

附言这是我的第一个堆栈溢出问题！

P.S. This is my first stack overflow question!

推荐答案

Nuxt 的 Axios 模块提供了两个URL 前缀的配置选项，一个用于服务器，一个用于浏览器.

Nuxt's Axios module offers two configuration options for URL prefixes, one for server and one for the browser.

axios: {
  baseURL: 'http://api:8080/api/v1',
  browserBaseURL: 'http://localhost/8080/api/v1'
},

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