engine resolve refactor

api/src/engines/index.js

@@ -0,0 +1,4 @@
+module.exports = connection => {
+  const { engine } = connection;
+  return require(`./${engine}`);
+};

api/src/proc/connectProcess.js

@@ -1,6 +1,8 @@
+const engines = require('../engines');
+
 process.on('message', async connection => {
   try {
-    const driver = require(`../engines/${connection.engine}/index`);
+    const driver = engines(connection);
     const conn = await driver.connect(connection);
     const res = await driver.getVersion(conn);
     process.send(res);

api/src/proc/serverConnectionProcess.js

@@ -1,8 +1,10 @@
+const engines = require('../engines');
+
 let systemConnection;
 let storedConnection;
 
 async function handleRefreshDatabases() {
-  const driver = require(`../engines/${storedConnection.engine}/index`);
+  const driver = engines(storedConnection);
   const databases = await driver.listDatabases(systemConnection);
   process.send({ msgtype: 'databases', databases });
 }