add apiKeyManager service

web/apiKeyManager.js

@@ -0,0 +1,28 @@
+const fs = require('fs');
+const _ = require('lodash')
+
+const apiKeysFile = '../api-keys.js';
+
+const prefix = `//DO NOT SHARE THIS FILE WITH ANYONE
+module.exports = `;
+
+// on init:
+const noApiKeysFile = !fs.existsSync(apiKeysFile);
+
+if(noApiKeysFile) {
+  let content = prefix + '{}';
+  fs.writeFileSync(apiKeysFile, content);
+}
+
+const apiKeys = require(apiKeysFile);
+
+module.exports = {
+  get: () => _.keys(apiKeys),
+
+  // note: overwrites if exists
+  add: (exchange, props) => {
+    apiKeys[exchange] = props;
+    fs.writeFileSync(apiKeysFile, prefix + JSON.stringify(apiKeys));
+  }
+
+}

web/routes/apiKeys.js

@@ -0,0 +1,15 @@
+const manager = require('../apiKeyManager');
+
+module.exports = {
+  get: function *() {
+    this.body = manager.get();
+  },
+  add: function *() {
+    const content = this.request.body;
+
+    manager.add(content.exchange, content.values);
+
+    this.body = 'ok';
+  }
+}
+