Gin GetString method always returns an empty string

When i am trying to get a value from the json map like this:

...
func SomeFunc(context *gin.Context) {
    something := context.GetString("a-key")
    ...

I always and up with a string looking like "" Is this a bug or i am just being stupid?

Comment From: carlosm27

Hello. How are you?

No, you are not stupid.

If you want to extract "a-key" from a JSON, this approach works for me:

type Something struct {
   Key: string `json: "a-key" binding: "required"`
}

func SomeFunc(context *gin.Context) {
var something Something

if err := c.Bind(&something); err != nil {
        c.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
        return
    }
key  := something.Key
}

It is more verbose, I know. Also, I'm assuming this is for a POST handler. If you are using a client to send the json data, set the header value as 'application/json'. When I don't specify the header value I got " " too. I hope this works for you.

Have a nice day.

Comment From: haithngn

When i am trying to get a value from the json map like this:

... func SomeFunc(context *gin.Context) { something := context.GetString("a-key") ...

I always and up with a string looking like "" Is this a bug or i am just being stupid?

hi @de-falt-GH, you should check the value set to the context, if you set a string pointer you will get an empty string from the gin context

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