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json-server で使い捨てモックサーバを作る

Posted at

フロントエンド開発に必要となったため json-server で
使い捨てモックサーバを構築する。

■json-server
https://github.com/typicode/json-server

インストール

mkdir /tmp/$(date +%Y%m%d)_moc && cd /tmp/$(date +%Y%m%d)_moc
yarn add json-server

初期設定

touch /tmp/$(date +%Y%m%d)_moc/db.json
touch /tmp/$(date +%Y%m%d)_moc/routes.json
touch /tmp/$(date +%Y%m%d)_moc/middlewares.js

データを用意する

db.json
{
  "posts": [
    { "id": 1, "title": "json-server", "author": "typicode" }
  ],
  "comments": [
    { "id": 1, "body": "some comment", "postId": 1 }
  ],
  "profile": { "name": "typicode" }
}

パスを追加する

■参考
https://github.com/typicode/json-server#add-custom-routes

routes.json
{
  "/api/v1/*": "/$1",
  "/api/v2/posts": "/posts",
  "/api/v3/comments": "/comments",
  "/api/v4/profile": "/profile"
}

GET以外のリクエストだとdb.jsonが書き換えられてしまうので、
全てのリクエストをGETにする

■参考
https://github.com/typicode/json-server#add-middlewares

middlewares.js
module.exports = function (req, res, next) {
  req.method = 'GET'
  req.query = req.body
  next()
}

サーバ起動

/tmp/$(date +%Y%m%d)_moc/node_modules/.bin/json-server --routes routes.json --watch db.json --middlewares middlewares.js -p 3000

curlコマンドで試してみる

curl http://localhost:3000/posts
curl http://localhost:3000/api/v1/posts

出力結果

[
{
"id": 1,
"title": "json-server",
"author": "typicode"
}
]






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