chore: Add the type for global variable of connection

packages/backend/src/helpers/global-variable/connection.ts

@@ -1,25 +1,36 @@
-import HttpClient from '../http-client';
+import createHttpClient from '../http-client';
 import Connection from '../../models/connection';
 import { IJSONObject, IApp } from '@automatisch/types';
+import { AxiosInstance as IHttpClient } from 'axios';
+
+type IGlobalVariableForConnection = {
+  auth: {
+    set: (args: IJSONObject) => Promise<Connection>;
+  };
+  app: IApp;
+  http: IHttpClient;
+};
 
 const prepareGlobalVariableForConnection = (
   connection: Connection,
   appData: IApp
-) => {
+): IGlobalVariableForConnection => {
   return {
     auth: {
       set: async (args: IJSONObject) => {
-        await connection.$query().patchAndFetch({
+        const persistedConnection = await connection.$query().patchAndFetch({
           formattedData: {
             ...connection.formattedData,
             ...args,
           },
         });
+
+        return persistedConnection;
       },
       ...connection.formattedData,
     },
     app: appData,
-    http: new HttpClient({ baseURL: appData.baseUrl }),
+    http: createHttpClient({ baseURL: appData.baseUrl }),
   };
 };