Golang Http Status Code Tutorial and Examples

In Golang, the http.StatusOK code is used to indicate that a request was successful, which is 200 by default.

The http.StatusNotModified code is used when a request is made to retrieve a resource that has not been modified since the last request, which is 304 by default.

To use these status codes, you can import the "net/http" package and use the Status constants.

A simple example of using http.StatusOK is shown in the "Returning a Successful Response" section, where a handler function returns a JSON response with a status code of 200.

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HTTP status codes are a crucial part of web development and RESTful API design, indicating the success or failure of an HTTP request. These standardized codes convey specific meaning about the request’s outcome.

In Go, you can use the net/http package to handle HTTP responses and send appropriate status codes. This package provides a set of predefined constants representing HTTP status codes.

For more insights, see: Important Http Status Codes

You can use these constants to make your code more readable when checking for status codes in responses. For example, instead of writing `if resp.StatusCode == 200 { // do something if the status code is 200 }`, you can write `if resp.StatusCode == http.StatusOK`.

The net/http package includes a function called `http.StatusText()` that allows you to pass in status codes and get a message for logging purposes or displaying to users. This function is useful for displaying a message if you don’t get a 200 status code.

Here are some common HTTP status codes and their corresponding messages:

You can use these status codes and messages in your Go code to handle HTTP responses and provide meaningful feedback to users.

Error Handling is a crucial aspect of web development and RESTful API design. You can use the net/http package in Go to handle HTTP responses and send appropriate status codes.

In Go, you can use predefined constants from the net/http package to represent HTTP status codes. These constants convey specific meaning about the request's outcome.

Here are some common HTTP status codes you can return in your Go application:

To handle errors in your Go application, you can create an HTTP server that listens on a specific port and returns different status codes based on the request. For example, you can create a basic HTTP server that listens on port 8080 and returns status codes for different paths.

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