initial commit

12 files changed, 1046 insertions, 0 deletions

diff --git a/.dockerignore b/.dockerignore
new file mode 100644
index 0000000..3749ef9
--- /dev/null
+++ b/.dockerignore
@@ -0,0 +1,4 @@
+node_modules/
+.git/
+*.md
+.dockerignore
\ No newline at end of file
diff --git a/.eslintrc.json b/.eslintrc.json
new file mode 100644
index 0000000..2868028
--- /dev/null
+++ b/.eslintrc.json
@@ -0,0 +1,13 @@
+{
+    "env": {
+        "commonjs": true,
+        "es2020": true,
+        "node": true
+    },
+    "extends": "eslint:recommended",
+    "parserOptions": {
+        "ecmaVersion": 11
+    },
+    "rules": {
+    }
+}
diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..ff7315e
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,5 @@
+node_modules/
+*.logs
+.DS_Store
+.Thumbs.db
+package-lock.json
diff --git a/Dockerfile b/Dockerfile
new file mode 100644
index 0000000..228e472
--- /dev/null
+++ b/Dockerfile
@@ -0,0 +1,10 @@
+FROM node:alpine3.15
+RUN mkdir -p /home/node/app/node_modules && chown -R node:node /home/node/app
+WORKDIR /home/node/app
+COPY server.js ./
+COPY package.json ./
+USER node
+RUN npm install
+COPY --chown=node:node . .
+EXPOSE 5000
+CMD [ "npm", "start" ]
diff --git a/LICENSE b/LICENSE
new file mode 100644
index 0000000..dba13ed
--- /dev/null
+++ b/LICENSE
@@ -0,0 +1,661 @@
+                    GNU AFFERO GENERAL PUBLIC LICENSE
+                       Version 3, 19 November 2007
+
+ Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+                            Preamble
+
+  The GNU Affero General Public License is a free, copyleft license for
+software and other kinds of works, specifically designed to ensure
+cooperation with the community in the case of network server software.
+
+  The licenses for most software and other practical works are designed
+to take away your freedom to share and change the works.  By contrast,
+our General Public Licenses are intended to guarantee your freedom to
+share and change all versions of a program--to make sure it remains free
+software for all its users.
+
+  When we speak of free software, we are referring to freedom, not
+price.  Our General Public Licenses are designed to make sure that you
+have the freedom to distribute copies of free software (and charge for
+them if you wish), that you receive source code or can get it if you
+want it, that you can change the software or use pieces of it in new
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+
+  Developers that use our General Public Licenses protect your rights
+with two steps: (1) assert copyright on the software, and (2) offer
+you this License which gives you legal permission to copy, distribute
+and/or modify the software.
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+the GNU Affero General Public License from time to time.  Such new versions
+will be similar in spirit to the present version, but may differ in detail to
+address new problems or concerns.
+
+  Each version is given a distinguishing version number.  If the
+Program specifies that a certain numbered version of the GNU Affero General
+Public License "or any later version" applies to it, you have the
+option of following the terms and conditions either of that numbered
+version or of any later version published by the Free Software
+Foundation.  If the Program does not specify a version number of the
+GNU Affero General Public License, you may choose any version ever published
+by the Free Software Foundation.
+
+  If the Program specifies that a proxy can decide which future
+versions of the GNU Affero General Public License can be used, that proxy's
+public statement of acceptance of a version permanently authorizes you
+to choose that version for the Program.
+
+  Later license versions may give you additional or different
+permissions.  However, no additional obligations are imposed on any
+author or copyright holder as a result of your choosing to follow a
+later version.
+
+  15. Disclaimer of Warranty.
+
+  THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
+APPLICABLE LAW.  EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
+HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
+OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
+THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+PURPOSE.  THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
+IS WITH YOU.  SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
+ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
+
+  16. Limitation of Liability.
+
+  IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
+THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
+GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
+USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
+DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
+PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
+EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGES.
+
+  17. Interpretation of Sections 15 and 16.
+
+  If the disclaimer of warranty and limitation of liability provided
+above cannot be given local legal effect according to their terms,
+reviewing courts shall apply local law that most closely approximates
+an absolute waiver of all civil liability in connection with the
+Program, unless a warranty or assumption of liability accompanies a
+copy of the Program in return for a fee.
+
+                     END OF TERMS AND CONDITIONS
+
+            How to Apply These Terms to Your New Programs
+
+  If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+  To do so, attach the following notices to the program.  It is safest
+to attach them to the start of each source file to most effectively
+state the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+    <one line to give the program's name and a brief idea of what it does.>
+    Copyright (C) <year>  <name of author>
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+Also add information on how to contact you by electronic and paper mail.
+
+  If your software can interact with users remotely through a computer
+network, you should also make sure that it provides a way for users to
+get its source.  For example, if your program is a web application, its
+interface could display a "Source" link that leads users to an archive
+of the code.  There are many ways you could offer source, and different
+solutions will be better for different programs; see section 13 for the
+specific requirements.
+
+  You should also get your employer (if you work as a programmer) or school,
+if any, to sign a "copyright disclaimer" for the program, if necessary.
+For more information on this, and how to apply and follow the GNU AGPL, see
+<http://www.gnu.org/licenses/>.
diff --git a/README.md b/README.md
new file mode 100644
index 0000000..4e81a1d
--- /dev/null
+++ b/README.md
@@ -0,0 +1,30 @@
+# Bank API
+
+Bank API built with [Node.js](https://nodejs.org) plus [Express](https://expressjs.com/).
+
+## Running the server
+
+Make sure you have [Node.js](https://nodejs.org) installed.
+
+1. Git clone this repo
+2. Run `npm install` and wait for the packages to be installed
+3. Run `npm start` and you are good to go.
+
+The server should start listening on port `5000`.
+
+> Note: all entries are stored in-memory and are not persisted, so when the server is stopped all data is lost.
+
+## API details
+
+Route                                         | Description
+----------------------------------------------|------------------------------------
+GET     /api/                                 | Get server info
+POST    /api/accounts/                        | Create an account, ex: `{ user: 'Yohan', description: 'My budget', currency: 'EUR', balance: 100 }`
+GET     /api/accounts/:user                   | Get all data for the specified account
+DELETE  /api/accounts/:user                   | Remove specified account
+POST    /api/accounts/:user/transactions      | Add a transaction, ex: `{ date: '2020-07-23T18:25:43.511Z', object: 'Bought a book', amount: -20 }`
+DELETE  /api/accounts/:user/transactions/:id  | Remove specified transaction
+
+## LICENSE
+
+[GNU AGPLv3+](LICENSE)
diff --git a/docker-compose.yml b/docker-compose.yml
new file mode 100644
index 0000000..119ba8d
--- /dev/null
+++ b/docker-compose.yml
@@ -0,0 +1,9 @@
+version: '3'
+
+services:
+  app:
+    image: 'rusian/apitool:latest'
+    container_name: apitool
+    ports:
+      - '5000:5000'
+    restart: "always"
diff --git a/package.json b/package.json
new file mode 100644
index 0000000..fd66a62
--- /dev/null
+++ b/package.json
@@ -0,0 +1,31 @@
+{
+  "name": "bank-api",
+  "version": "1.0.0",
+  "description": "Bank API",
+  "private": true,
+  "main": "server.js",
+  "scripts": {
+    "start": "node server.js",
+    "lint": "eslint",
+    "format": "prettier --single-quote --write *.js"
+  },
+  "keywords": [],
+  "author": {
+    "name": "Yohan Lasorsa",
+    "url": "https://twitter.com/sinedied"
+  },
+  "license": "MIT",
+  "devDependencies": {
+    "eslint": "^7.5.0",
+    "prettier": "^2.0.5"
+  },
+  "dependencies": {
+    "body-parser": "^1.19.0",
+    "cors": "^2.8.5",
+    "express": "^4.17.1",
+    "package.json": "^2.0.1"
+  },
+  "engines": {
+    "node": ">=10"
+  }
+}
diff --git a/server.js b/server.js
new file mode 100644
index 0000000..e347e37
--- /dev/null
+++ b/server.js
@@ -0,0 +1,205 @@
+const express = require('express');
+const bodyParser = require('body-parser');
+const cors = require('cors')
+const crypto = require('crypto');
+const pkg = require('./package.json');
+
+// App constants
+const port = process.env.PORT || 5000;
+const apiPrefix = '/api';
+
+// Store data in-memory, not suited for production use!
+const db = {
+  test: {
+    user: 'test',
+    currency: '$',
+    description: `Test account`,
+    balance: 75,
+    transactions: [
+      { id: '1', date: '2020-10-01', object: 'Pocket money', amount: 50 },
+      { id: '2', date: '2020-10-03', object: 'Book', amount: -10 },
+      { id: '3', date: '2020-10-04', object: 'Sandwich', amount: -5 }
+    ],
+  }
+};
+
+// Create the Express app & setup middlewares
+const app = express();
+app.use(bodyParser.urlencoded({ extended: true }));
+app.use(bodyParser.json());
+app.use(cors({
+  origin: /http:\/\/(127(\.\d){3}|localhost)/,
+  optionsSuccessStatus: 200
+}));
+app.options('*', cors());
+
+// ***************************************************************************
+
+// Configure routes
+const router = express.Router();
+
+// Get server infos
+router.get('/', (req, res) => {
+  return res.send(`${pkg.description} v${pkg.version}`);
+});
+
+// ----------------------------------------------
+
+// Create an account
+router.post('/accounts', (req, res) => {
+  // Check mandatory request parameters
+  if (!req.body.user || !req.body.currency) {
+    return res.status(400).json({ error: 'Missing parameters' });
+  }
+
+  // Check if account already exists
+  if (db[req.body.user]) {
+    return res.status(409).json({ error: 'User already exists' });
+  }
+
+  // Convert balance to number if needed
+  let balance = req.body.balance;
+  if (balance && typeof balance !== 'number') {
+    balance = parseFloat(balance);
+    if (isNaN(balance)) {
+      return res.status(400).json({ error: 'Balance must be a number' });
+    }
+  }
+
+  // Create account
+  const account = {
+    user: req.body.user,
+    currency: req.body.currency,
+    description: req.body.description || `${req.body.user}'s budget`,
+    balance: balance || 0,
+    transactions: [],
+  };
+  db[req.body.user] = account;
+
+  return res.status(201).json(account);
+});
+
+// ----------------------------------------------
+
+// Get all data for the specified account
+router.get('/accounts/:user', (req, res) => {
+  const account = db[req.params.user];
+  // Check if account exists
+  if (!account) {
+    return res.status(404).json({ error: 'User does not exist' });
+  }
+
+  return res.json(account);
+});
+
+// ----------------------------------------------
+
+// Remove specified account
+router.delete('/accounts/:user', (req, res) => {
+  const account = db[req.params.user];
+
+  // Check if account exists
+  if (!account) {
+    return res.status(404).json({ error: 'User does not exist' });
+  }
+
+  // Removed account
+  delete db[req.params.user];
+
+  res.sendStatus(204);
+});
+
+// ----------------------------------------------
+
+// Add a transaction to a specific account
+router.post('/accounts/:user/transactions', (req, res) => {
+  const account = db[req.params.user];
+
+  // Check if account exists
+  if (!account) {
+    return res.status(404).json({ error: 'User does not exist' });
+  }
+
+  // Check mandatory requests parameters
+  if (!req.body.date || !req.body.object || !req.body.amount) {
+    return res.status(400).json({ error: 'Missing parameters' });
+  }
+
+  // Convert amount to number if needed
+  let amount = req.body.amount;
+  if (amount && typeof amount !== 'number') {
+    amount = parseFloat(amount);
+  }
+
+  // Check that amount is a valid number
+  if (amount && isNaN(amount)) {
+    return res.status(400).json({ error: 'Amount must be a number' });
+  }
+
+  // Generates an ID for the transaction
+  const id = crypto
+    .createHash('md5')
+    .update(req.body.date + req.body.object + req.body.amount)
+    .digest('hex');
+
+  // Check that transaction does not already exist
+  if (account.transactions.some((transaction) => transaction.id === id)) {
+    return res.status(409).json({ error: 'Transaction already exists' });
+  }
+
+  // Add transaction
+  const transaction = {
+    id,
+    date: req.body.date,
+    object: req.body.object,
+    amount,
+  };
+  account.transactions.push(transaction);
+
+  // Update balance
+  account.balance += transaction.amount;
+
+  return res.status(201).json(transaction);
+});
+
+// ----------------------------------------------
+
+// Remove specified transaction from account
+router.delete('/accounts/:user/transactions/:id', (req, res) => {
+  const account = db[req.params.user];
+
+  // Check if account exists
+  if (!account) {
+    return res.status(404).json({ error: 'User does not exist' });
+  }
+
+  const transactionIndex = account.transactions.findIndex(
+    (transaction) => transaction.id === req.params.id
+  );
+
+  // Check if transaction exists
+  if (transactionIndex === -1) {
+    return res.status(404).json({ error: 'Transaction does not exist' });
+  }
+
+  // Remove transaction
+  account.transactions.splice(transactionIndex, 1);
+
+  res.sendStatus(204);
+});
+
+// ***************************************************************************
+
+// set custom header
+app.use((req, res, next) => {
+  res.append('tsec', 'fxrAJnJLVzgp9PFMJKmmRLVHVscfyw3Mjdr');
+  next();
+})
+
+// Add 'api` prefix to all routes
+app.use(apiPrefix, router);
+
+// Start the server
+app.listen(port, () => {
+  console.log(`Server listening on port ${port}`);
+});
diff --git a/translations/README.es.md b/translations/README.es.md
new file mode 100644
index 0000000..2c3d0ef
--- /dev/null
+++ b/translations/README.es.md
@@ -0,0 +1,26 @@
+# API bancaria
+
+API bancaria construida con [Node.js](https://nodejs.org) plus [Express](https://expressjs.com/).
+
+## Ejecutando el servidor
+
+Asegúrese de tener [Node.js](https://nodejs.org) instalado.
+
+1. Git clone este repositorio.
+2. Luego ejecute `npm install`.
+3. Ejecute `npm start`.
+
+El servidor debería comenzar a escuchar en el puerto `5000`.
+
+> Nota: todas las entradas se almacenan en la memoria y no se conservan, por lo que cuando se detiene el servidor, se pierden todos los datos.
+
+## API
+
+Ruta                                          | Descripción
+----------------------------------------------|------------------------------------
+GET     /api/                                 | Obtener información del servidor
+POST    /api/accounts/                        | Cree una cuenta, por ejemplo: `{ user: 'Yohan', description: 'My budget', currency: 'EUR', balance: 100 }`
+GET     /api/accounts/:user                   | Obtener todos los datos de la cuenta especificada
+DELETE  /api/accounts/:user                   | Eliminar cuenta especificada
+POST    /api/accounts/:user/transactions      | Agregar una transacción, por ejemplo: `{ date: '2020-07-23T18:25:43.511Z', object: 'Bought a book', amount: -20 }`
+DELETE  /api/accounts/:user/transactions/:id  | Eliminar transacción especificada
diff --git a/translations/README.ja.md b/translations/README.ja.md
new file mode 100644
index 0000000..6e81103
--- /dev/null
+++ b/translations/README.ja.md
@@ -0,0 +1,26 @@
+# 銀行 API
+
+銀行 API は [Node.js](https://nodejs.org/ja/) plus [Express](https://expressjs.com/ja/) で構築されています。
+
+## サーバーの実行
+
+[Node.js](https://nodejs.org/ja/) がインストールされていることを確認してください。
+
+1. このリポジトリを Git でクローンします
+2. `npm install` を実行します
+3. `npm start` を実行します
+
+サーバーは `5000` ポートで待ち受けを開始するはずです。
+
+> 注意: すべてのエントリはメモリに保存され、永続化されないので、サーバを停止するとすべてのデータが失われます。
+
+## API の詳細
+
+ルート                                        | 説明
+----------------------------------------------|------------------------------------
+GET     /api/                                 | サーバー情報を取得します
+POST    /api/accounts/                        | アカウントを作成します。例: `{ user: 'Yohan', description: 'My budget', currency: 'EUR', balance: 100 }`
+GET     /api/accounts/:user                   | 指定したアカウントのすべてのデータを取得します
+DELETE  /api/accounts/:user                   | 指定したアカウントを削除します
+POST    /api/accounts/:user/transactions      | トランザクションを追加します。例: `{ date: '2020-07-23T18:25:43.511Z', object: 'Bought a book', amount: -20 }`
+DELETE  /api/accounts/:user/transactions/:id  | 指定されたトランザクションを削除します
diff --git a/translations/README.zh-tw.md b/translations/README.zh-tw.md
new file mode 100644
index 0000000..379ff3a
--- /dev/null
+++ b/translations/README.zh-tw.md
@@ -0,0 +1,26 @@
+# 銀行 API (Bank API)
+
+由 [Node.js](https://nodejs.org) 與 [Express](https://expressjs.com/) 建立而成。
+
+## 運行伺服器
+
+確保你的 [Node.js](https://nodejs.org) 已經安裝完成。
+
+1. Git clone 這個數據庫.
+2. 執行 `npm install`。
+3. 執行 `npm start`。
+
+伺服器應該要在連接埠 `5000` 上監聽訊息。
+
+> 筆記：所有儲存的資料不是永久保存的，伺服器終止時會遺失所有資料。
+
+## API 項目
+
+路由                                          | 描述
+----------------------------------------------|------------------------------------
+GET     /api/                                 | 取得伺服器資訊
+POST    /api/accounts/                        | 建立新的帳戶，範例： `{ user: 'Yohan', description: 'My budget', currency: 'EUR', balance: 100 }`
+GET     /api/accounts/:user                   | 取得特定帳戶的所有資料
+DELETE  /api/accounts/:user                   | 移除特定帳戶
+POST    /api/accounts/:user/transactions      | 建立新的交易明細，範例： `{ date: '2020-07-23T18:25:43.511Z', object: 'Bought a book', amount: -20 }`
+DELETE  /api/accounts/:user/transactions/:id  | 移除特定交易明細