如何在POST请求中发送JSON字符串?

I tried working with Apiary and made a universal template to send JSON to mock server and have this code:

我尝试使用Apiary，制作了一个通用模板，将JSON发送到mock服务器，并拥有以下代码:

package main

import (
    "encoding/json"
    "fmt"
    "github.com/jmcvetta/napping"
    "log"
    "net/http"
)

func main() {
    url := "http://restapi3.apiary.io/notes"
    fmt.Println("URL:>", url)

    s := napping.Session{}
    h := &http.Header{}
    h.Set("X-Custom-Header", "myvalue")
    s.Header = h

    var jsonStr = []byte(`
{
    "title": "Buy cheese and bread for breakfast."
}`)

    var data map[string]json.RawMessage
    err := json.Unmarshal(jsonStr, &data)
    if err != nil {
        fmt.Println(err)
    }

    resp, err := s.Post(url, &data, nil, nil)
    if err != nil {
        log.Fatal(err)
    }
    fmt.Println("response Status:", resp.Status())
    fmt.Println("response Headers:", resp.HttpResponse().Header)
    fmt.Println("response Body:", resp.RawText())

}

This code doesn't send JSON properly, but I don't know why. The JSON string can be different in every call. I can't use Struct for this.

这段代码不能正确地发送JSON，但是我不知道为什么。JSON字符串在每次调用中都是不同的。我不能用Struct来做这个。

3 个解决方案

#1

290

I'm not familiar with napping, but using Golang's net/http package works fine (playground):

我不熟悉午睡，但是使用Golang的net/http包很好(游乐场):

func main() {
    url := "http://restapi3.apiary.io/notes"
    fmt.Println("URL:>", url)

    var jsonStr = []byte(`{"title":"Buy cheese and bread for breakfast."}`)
    req, err := http.NewRequest("POST", url, bytes.NewBuffer(jsonStr))
    req.Header.Set("X-Custom-Header", "myvalue")
    req.Header.Set("Content-Type", "application/json")

    client := &http.Client{}
    resp, err := client.Do(req)
    if err != nil {
        panic(err)
    }
    defer resp.Body.Close()

    fmt.Println("response Status:", resp.Status)
    fmt.Println("response Headers:", resp.Header)
    body, _ := ioutil.ReadAll(resp.Body)
    fmt.Println("response Body:", string(body))
}

#2

you can just use post to post your json.

您可以使用post发布json。

values := map[string]string{"username": username, "password": password}

jsonValue, _ := json.Marshal(values)

resp, err := http.Post(authAuthenticatorUrl, "application/json", bytes.NewBuffer(jsonValue))

#3

In addition to standard net/http package, you can consider using my GoRequest which wraps around net/http and make your life easier without thinking too much about json or struct. But you can also mix and match both of them in one request! (you can see more details about it in gorequest github page)

除了标准的net/http包之外，您还可以考虑使用我的GoRequest，它围绕着net/http，使您的生活更轻松，而无需过多考虑json或struct。但是您也可以在一个请求中混合和匹配它们。(您可以在gorequest github页面上看到更多细节)

So, in the end your code will become like follow:

所以，最终你的代码会变成:

func main() {
    url := "http://restapi3.apiary.io/notes"
    fmt.Println("URL:>", url)
    request := gorequest.New()
    titleList := []string{"title1", "title2", "title3"}
    for _, title := range titleList {
        resp, body, errs := request.Post(url).
            Set("X-Custom-Header", "myvalue").
            Send(`{"title":"` + title + `"}`).
            End()
        if errs != nil {
            fmt.Println(errs)
            os.Exit(1)
        }
        fmt.Println("response Status:", resp.Status)
        fmt.Println("response Headers:", resp.Header)
        fmt.Println("response Body:", body)
    }
}

This depends on how you want to achieve. I made this library because I have the same problem with you and I want code that is shorter, easy to use with json, and more maintainable in my codebase and production system.

这取决于你想要怎样实现。我创建这个库是因为我和您有同样的问题，我希望代码更短，更易于使用json，并且在我的代码库和生产系统中更易于维护。

#1

290