Is My Go POST Request Code Correctly Sending Form Data?

POST Requests in Go: Troubleshooting Connectivity Issues

In making POST requests in Go, it's important to ensure that they are configured and sent correctly to avoid connectivity issues. Let's address a common challenge faced by developers in this area.

Question:
When attempting to send a POST request, no response is received at the destination. Is the following code snippet a valid approach to making such requests?

hc := http.Client{}
req, err := http.NewRequest("POST", APIURL, nil)

form := url.Values{}
form.Add("ln", c.ln)
form.Add("ip", c.ip)
form.Add("ua", c.ua)
req.PostForm = form
req.Header.Add("Content-Type", "application/x-www-form-urlencoded")

glog.Info("form was %v", form)
resp, err := hc.Do(req)

Answer:
The code snippet you provided has a minor issue in the way the form data is added to the request. The form data should be sent in the body of the request, not as a part of the URL parameters. Here's the corrected code:

req, err := http.NewRequest("POST", url, strings.NewReader(form.Encode()))

In this corrected code, the strings.NewReader(form.Encode()) call encodes the form data into a string and assigns it to the body of the request. This ensures that the form data is sent correctly and can be processed by the server.

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