Using .JSON forces a header match which isn't always wanted

[cameronbraid]

gock.New(url).JSON(...)

Forces a header check for "Content-Type", "application/json"

I am testing a client that sends "content-type" with lower case C and T so this will never match

One solution could be to document the JSON method as adding a header and add a new method JSONBody

// JSON defines the JSON body to match based on a given structure, and adds a matcher for content type
func (r *Request) JSON(data interface{}) *Request {
	if r.Header.Get("Content-Type") == "" {
		r.Header.Set("Content-Type", "application/json")
	}
	return r.JSONBody(data)
}

// JSON defines the JSON body to match based on a given structure
func (r *Request) JSONBody(data interface{}) *Request {
	r.BodyBuffer, r.Error = readAndDecode(data, "json")
	return r
}

[teemuniiranen]

I tried to mock AWS SDK for Golang (aws-sdk-go/1.42.39) and noticed this problem. AWS is sending Content-Type: application/x-amz-json-1.1. I would separate totally MatchHeader from the body matching.