Initial commit

lib/request.js

@@ -0,0 +1,92 @@
+
+const assert = require('assert');
+
+const request = require('request');
+
+const {signMessage} = require('./utility.js');
+
+const baseUrls = {
+  livenet: 'https://api.bybit.com',
+  testnet: 'https://api-testnet.bybit.com'
+}
+
+module.exports = class Request {
+
+  constructor(key, secret, livenet=false) {
+    this.baseUrl = baseUrls[livenet === true ? 'livenet' : 'testnet'];
+
+    if(key) assert(secret, 'Secret is required for private enpoints');
+
+    this.key = key;
+    this.secret = secret;
+  }
+
+
+  async get(endpoint, params) {
+    const result = await this._call('GET', endpoint, params);
+
+    return result;
+  }
+
+  async post(endpoint, params) {
+    const result = await this._call('POST', endpoint, params);
+
+    return result;
+  }
+
+  async _call(method, endpoint, params) {
+    const publicEndpoint = endpoint.startsWith('/v2/public');
+
+    if(!publicEndpoint) {
+      if(!this.key || !this.secret) throw new Error('Private endpoints require api and private keys set');
+
+      params = this._signRequest(params);
+    }
+
+    const options = {
+      url: [this.baseUrl, endpoint].join('/'),
+      method: method,
+      json: true
+    };
+
+    switch(method) {
+      case 'GET':
+        options.qs = params
+      break;
+      case 'POST':
+        options.body = params
+      break;
+    }
+
+    return new Promise((resolve, reject) => {
+      request(options, function callback(error, response, body) {
+        if(!error && response.statusCode == 200) {
+          resolve(body);
+        } else if(error) {
+          reject(error);
+        }
+      });
+    });
+  }
+
+  _signRequest(data) {
+    const params = {
+      ...data,
+      api_key: this.key,
+      timestamp: Date.now()
+    };
+
+    if(this.key && this.secret) {
+      params.sign = signMessage(this._serializeParams(params), this.secret);
+    }
+
+    return params;
+  }
+
+  _serializeParams(params) {
+    return Object.keys(params)
+      .sort()
+      .map(key => `${key}=${params[key]}`)
+      .join('&');
+  }
+}