回答編集履歴
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環境作って動作確認したので追記
test
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@@ -13,3 +13,197 @@
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```
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これじゃないのかな(`String`ではなくユーザー名及びパスワードを文字列として入れないといけないのでは)
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---
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コメントでのエラー内容を環境作って試しました
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app.js
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```js
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// server.js
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// 必要なパッケージの読み込み
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var express = require('express');
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var app = express();
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var bodyParser = require('body-parser');
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var mongoose = require('mongoose');
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// DBへの接続
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var mongoose = require('mongoose');
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mongoose.connect('mongodb://localhost/backend');
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// モデルの宣言
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var User = require('./models/user');
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// POSTでdataを受け取るための記述
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app.use(bodyParser.urlencoded({ extended: true }));
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app.use(bodyParser.json());
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// 3000番を指定
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var port = process.env.PORT || 3000;
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// expressでAPIサーバを使うための準備
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var router = express.Router();
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router.use(function(req, res, next) {
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console.log('Something is happening.');
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next();
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});
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// 正しく実行出来るか左記にアクセスしてテストする (GET http://localhost:3000/api)
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router.post('/', function(request, response){
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console.log("catch the post request");
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response.setHeader('Content-Type', 'text/plain');
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// パラメータ名、usernameとpassを出力
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console.log(request.body.username);
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console.log(request.body.password);
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var username = request.body.username;
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var password = request.body.password;
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User.find({ "username" : username }, function(err, result){
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if (err)
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console.log(err);
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// 新規登録
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if (result.length == 0){
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var user = new User();
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user.username = username;
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user.password = password;
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user.save(function(err){
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if (err) console.log(err);
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response.send("new_created");
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});
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}
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// usernameがDBに存在した場合
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else{
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if (result[0].password == password)
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response.send("true");
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else
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response.send("false");
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}
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});
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});
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// ルーティング登録
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app.use('/api', router);
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//サーバ起動
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app.listen(port);
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console.log('listen on port ' + port);
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```
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user.js
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```js
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var mongoose = require('mongoose');
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var Schema = mongoose.Schema;
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var User = new Schema({
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username : { type: String, require: true, unique: true },
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password : { type: String, require: true }
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});
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module.exports = mongoose.model('user', User);
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```
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`curl -X POST -H "Content-Type: application/json" -d '{"username": "username", "password": "password"}' localhost:3000/api`で`new_created`と帰ってきたので、乗ってないソース部分でなってますね
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