CODEWITHSUNDEEP
postgo
roger
roger

Reputation: 9933

Go send post request?

I want to send POST request with Go, the request with curl is as follow:

curl 'http://192.168.1.50:18088/' -d '{"inputs": [{"desc":"program","ind":"14","p":"program"}]}'

I do this with Go like this:

jobCateUrl := "http://192.168.1.50:18088/"

data := url.Values{}
queryMap := map[string]string{"p": "program", "ind": "14", "desc": "program"}
q, _ := json.Marshal(queryMap)
data.Add("inputs", string(q))

client := &http.Client{}
r, _ := http.NewRequest("POST", jobCateUrl, strings.NewReader(data.Encode()))
r.Header.Add("Content-Type", "application/x-www-form-urlencoded")
r.Header.Add("Content-Length", strconv.Itoa(len(data.Encode())))

resp, _ := client.Do(r)
fmt.Println(resp)

but I failed, got 500 error, what wrong with this?

Upvotes: 2

Views: 246

Answers (2)

mrd0ll4r
mrd0ll4r

Reputation: 886

The Request bodies are not the same:

In curl, you send {"inputs": [{"desc":"program","ind":"14","p":"program"}]}

In go, you send inputs=%7B%22desc%22%3A%22program%22%2C%22ind%22%3A%2214%22%2C%22p%22%3A%22program%22%7D which URLDecodes to inputs={"desc":"program","ind":"14","p":"program"}.

So, what you should probably do is something like this:

type body struct {
    Inputs []input `json:"input"`
}

type input struct {
    Desc string `json:"desc"`
    Ind  string `json:"ind"`
    P    string `json:"p"`
}

Then create a body:

b := body{
    Inputs: []input{
        {
            Desc: "program",
            Ind:  "14",
            P:    "program"},
        },
}

Encode that:

q, err := json.Marshal(b)
if err != nil {
    panic(err)
}

You should obviously not panic, this is just for demonstration. Anyways, a string(q) will get you {"input":[{"desc":"program","ind":"14","p":"program"}]}.

Try it on the Playground

Upvotes: 3

Jiayu Wang
Jiayu Wang

Reputation: 923

You don't need to set the "Content-Length", and instead i think you need to set the "host" attribute.

Upvotes: 0

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