API Tools - Middleware - Error Handler

This section explains the error handler middleware in our API tools, which is designed to manage and respond to errors that occur during the processing of API requests.

Features

Robust Error Handling: The middleware is designed to catch and respond to errors effectively, ensuring the stability of the API.
Customizable Responses: You can define custom responses for different types of errors to provide more informative feedback to the client.
Logging: Errors are logged for further analysis and debugging purposes.

Usage

To use the error handler middleware, follow these steps:

Install Middleware: First, install the middleware in your project.
```
npm install api-tools-error-handler
```

Configure Middleware: Configure the middleware in your API settings.

const errorHandler = require('api-tools-error-handler');

app.use(errorHandler());

Customize Error Handling: You can customize the error handling by defining a custom error handler function.

const errorHandler = require('api-tools-error-handler');

app.use(errorHandler({
    onHandleError: (err, req, res) => {
        // Custom error handling logic
        res.status(500).json({ error: 'Internal Server Error' });
    }
}));

Examples

Here are some examples of error handling scenarios:

404 Not Found: If a requested resource is not found, the middleware will return a 404 error.
```
<center><img src="https://cloud-image.ullrai.com/q/404_error/" alt="404 Error"/></center>
```
500 Internal Server Error: If an unexpected error occurs, the middleware will return a 500 error.
```
<center><img src="https://cloud-image.ullrai.com/q/500_error/" alt="500 Error"/></center>
```

For more detailed examples and information, please refer to our API Tools Documentation.

Contact

If you have any questions or need further assistance, please contact our support team at support@api-tools.com.