Function FromJSON

middleware/jwt/extractor.go:42–71

FromJSON is a token extractor. Reads a json request body and extracts the json based on the given field. The request content-type should contain the: application/json header value, otherwise this method will not try to read and consume the body.

(jsonKey string)

// The request content-type should contain the: application/json header value, otherwise
// this method will not try to read and consume the body.
func FromJSON(jsonKey string) TokenExtractor {
	return func(ctx *context.Context) string {
		if ctx.GetContentTypeRequested() != context.ContentJSONHeaderValue {
			return ""
		}

		var m context.Map
		ctx.RecordRequestBody(true)
		defer ctx.RecordRequestBody(false)
		if err := ctx.ReadJSON(&m); err != nil {
			return ""
		}

		if m == nil {
			return ""
		}

		v, ok := m[jsonKey]
		if !ok {
			return ""
		}

		tok, ok := v.(string)
		if !ok {
			return ""
		}

		return tok
	}
}