Chore/consistent services and error handlers (#2101)

* Update index.ts

* Update buildChatflow.ts

* Update index.ts

* Update index.ts

* Update index.ts

* Update index.ts

* Update index.ts

* Update index.ts

* Update index.ts

* Update index.ts

* Consistency

* Rename ApiError to InternalServerError

* Use InternalFlowiseError in controllers

* Use InternalFlowiseError in services

* Catch routes without preconditioned parameters

* Reconfigure the route precondition checks

* Fix router precondition checks

* cleanup status codes, get proper error messages

---------

Co-authored-by: Henry <hzj94@hotmail.com>

packages/server/src/utils/addChatflowsCount.ts

@@ -1,5 +1,8 @@
+import { StatusCodes } from 'http-status-codes'
 import { ChatFlow } from '../database/entities/ChatFlow'
+import { InternalFlowiseError } from '../errors/internalFlowiseError'
 import { getRunningExpressApp } from '../utils/getRunningExpressApp'
+import { getErrorMessage } from '../errors/utils'
 
 export const addChatflowsCount = async (keys: any) => {
     try {
@@ -28,6 +31,6 @@ export const addChatflowsCount = async (keys: any) => {
         }
         return tmpResult
     } catch (error) {
-        throw new Error(`Error: addChatflowsCount - ${error}`)
+        throw new InternalFlowiseError(StatusCodes.INTERNAL_SERVER_ERROR, `Error: addChatflowsCount - ${getErrorMessage(error)}`)
     }
 }