[Solved] how to send dynamic json key/value as request params

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You can greatly simplify your code by using a proper struct for your JSON unmarshaling:

type Request struct {
    URL    string                 `json:"url"`
    Params map[string]interface{} `json:"params"`
    Type   string                 `json:"type"`
}

Then you can unmarshal it more simply as so:

request := &Request{}
if err := json.Unmarshal([]byte(j), &request); err != nil {
    panic(err)
}

And access the values as such:

requestType = request.Type
requestURL = request.URL
for key, value := range request.Params {
    switch v := value.(type) {
    case float64:
         // handle numbers
    case string:
         // handle strings
    }
}

2

solved how to send dynamic json key/value as request params