如何将值从一个handlerFunc传递给另一个go-gin

Question

I have rest API defined as

    apis.GET(/home, validatationHandler , dashboardHandler)

I want pass some data from validatationHandler to dashboardHandler. For this I thought of using header. To set the data I use this in validatationHandler

    c.Writer.Header().Set("myheader", "mytoken")
    c.Next()

and in dashboardHandler I tried to access it using

fmt.Println(c.Request.Header.Get("myheader"))

But the value is always nil. Any idea how can I set and retrieve headers? Is there any other way I can pass on the data from 1 handler to another?

Answer 1

You can pass values via gin.Context Use ctx.Set(k, v) in fisrt one and ctx.Get(k) in the next.

So How to Use It:

ctx.Set("myKey", 100)

and get it using

v, ok := ctx.Get("myKey")
if ok {
   actualValue := v.(int) // you need to type convert it as it returns interface.
}

See context.go