Centralized Axios Client for Frontend–Backend Integration
February 16, 2026
3 min read
A Clean & Production-Ready Way to Send JSON from Backend to Frontend (Express + Axios)
what is the Problem ?
Without a standard format, different API Response shapes like{"user":{...}}{"data": {}, "status":ture} .
•In the Goal What the send a Response one predicatable structure.
Backend
1.sendResponse
•this is function that are the easy to send a response do not every time duplicated a res.status(200).json({...}) this statments just like call this function and all the deatils.
2. ApiError
•A custom Error Class that are the direct throw erros and this erros are the handle by globally.
•for Example:
3. sendResponse
•To Avoid a Repeating statement. res.status().json({...});
For the Frontend with axios
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