What is the difference between ctx.AbortWithStatusJSON() and ctx.JSON() methods in golang GIN

Question

What is the difference between the methods ctx.AbortWithStatusJSON() and ctx.JSON()? As I understand it, the first one calls TWO methods inside itself - Abort(), which interrupts the processing of the next handlers in the chain, and the SECOND ctx.JSON() which returns the response to the client.

func (c *Context) AbortWithStatusJSON(code int, jsonObj any) {
c.Abort()
c.JSON(code, jsonObj)
}

This begs the question - why do they call ctx.JSON() in many cases?

• to return the response and CONTINUE executing handlers in the chain? But why do we need to execute the next handlers if we have already returned the response to the client?

• or does ctx.JSON() also somehow interrupt the request chain?

source code

func (c *Context) AbortWithStatusJSON(code int, jsonObj any) {
c.Abort()
c.JSON(code, jsonObj)
}

• Anatoly: why do we need to execute the next handlers if we have already returned the response to the client? For instance, to log the response along with some request props or do some other post-request actions

Answer 1

There are many use cases where additional processing happens after the main request handling is complete, typically in web servers, APIs, or distributed systems:

For example -

1. Logging - Record request/response data after handling

2. Analytics - Send metrics to Prometheus, Datadog, etc.

3. Security Auditing - Capture actions for regulatory compliance

4. Asynchronous Notification - Trigger follow-up actions in background like publlishing messages to Message Queues like Kafka.

5. Resource Cleanup - Clean up resources related to request