Do an HTTP POST Request in Go

net/http provides a couple of ways to do HTTP POST requests.

  1. http.Post

    http.Post(
    "https://howtoxiny.org/en/docs/contributing/?query=value&filter=other",
    "application/json",
    strings.NewReader(`{ "cats": "awesome" }`)
)

  2. http.NewRequest

    request, err := http.NewRequest(
    "POST",
    "https://howtoxiny.org/en/docs/contributing/?query=value&filter=other",
    strings.NewReader(`{ "cats": "awesome" }`),
)
if err != nil {
    log.Fatal(err)
}

request.Header.Set("User-Agent", "agent/0.0.1")
request.Header.Set("Accept", "*/*")
request.Header.Set("Content-Type", "application/json")

http.DefaultClient.Do(request)

  3. http.Request

    parsedURL, err := url.Parse(
    "https://howtoxiny.org/en/docs/contributing/?query=value&filter=other",
)
if err != nil {
    log.Fatal(err)
}

request := http.Request{
    Method: "POST",
    URL:    parsedURL,
    Body:   io.NopCloser(strings.NewReader(`{ "cats": "awesome" }`)),
    Header: map[string][]string{
        "Accept":       {"*/*"},
        "Content-Type": {"application/json"},
        "User-Agent":   {"agent/0.0.1"},
    },
}

http.DefaultClient.Do(&request)

References

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