如何在Go中使用承载令牌发出请求 [英] How can I make a request with a bearer token in Go

问题描述

我需要使用授权请求中的承载令牌向API发出GET请求.我该如何在Go中执行此操作?我有以下代码，但没有成功.

package main

import (
    "io/ioutil"
    "log"
    "net/http"
)

func main() {
    url := "https://api.globalcode.com.br/v1/publico/eventos"

    resp, err := http.Get(url)
    resp.Header.Add("Bearer", "token")
    if err != nil {
        log.Println("Erro ao realizar request.\n[ERRO] -", err)
    }

    body, _ := ioutil.ReadAll(resp.Body)
    log.Println(string([]byte(body)))
}

解决方案

要控制HTTP客户端标头，重定向策略和其他设置，请创建客户端:

package main

import (
    "io/ioutil"
    "log"
    "net/http"
)

func main() {
    url := "https://api.globalcode.com.br/v1/publico/eventos"

    // Create a Bearer string by appending string access token
    var bearer = "Bearer " + <ACCESS TOKEN HERE>

    // Create a new request using http
    req, err := http.NewRequest("GET", url, nil)

    // add authorization header to the req
    req.Header.Add("Authorization", bearer)

    // Send req using http Client
    client := &http.Client{}
    resp, err := client.Do(req)
    if err != nil {
        log.Println("Error on response.\n[ERRO] -", err)
    }

    body, _ := ioutil.ReadAll(resp.Body)
    log.Println(string([]byte(body)))
}

客户端的传输通常具有内部状态(缓存的TCP 连接)，因此应重新使用客户端，而不是将其创建为 需要.客户端可以安全地被多个goroutine并发使用.

客户端比RoundTripper(例如Transport)的级别更高，并且 另外还处理HTTP详细信息，例如cookie和重定向.

有关客户端和传输设备的详细信息，请检查net/http软件包的golang规范 >

I need to make a GET request to an API with a bearer token in the authorization request. How can I do this in Go? I have the following code, but I haven't had success.

package main

import (
    "io/ioutil"
    "log"
    "net/http"
)

func main() {
    url := "https://api.globalcode.com.br/v1/publico/eventos"

    resp, err := http.Get(url)
    resp.Header.Add("Bearer", "token")
    if err != nil {
        log.Println("Erro ao realizar request.\n[ERRO] -", err)
    }

    body, _ := ioutil.ReadAll(resp.Body)
    log.Println(string([]byte(body)))
}

解决方案

For control over HTTP client headers, redirect policy, and other settings, create a Client:

package main

import (
    "io/ioutil"
    "log"
    "net/http"
)

func main() {
    url := "https://api.globalcode.com.br/v1/publico/eventos"

    // Create a Bearer string by appending string access token
    var bearer = "Bearer " + <ACCESS TOKEN HERE>

    // Create a new request using http
    req, err := http.NewRequest("GET", url, nil)

    // add authorization header to the req
    req.Header.Add("Authorization", bearer)

    // Send req using http Client
    client := &http.Client{}
    resp, err := client.Do(req)
    if err != nil {
        log.Println("Error on response.\n[ERRO] -", err)
    }

    body, _ := ioutil.ReadAll(resp.Body)
    log.Println(string([]byte(body)))
}

The Client's Transport typically has internal state (cached TCP connections), so Clients should be reused instead of created as needed. Clients are safe for concurrent use by multiple goroutines.

A Client is higher-level than a RoundTripper (such as Transport) and additionally handles HTTP details such as cookies and redirects.

For more information on Client and Transport check golang spec for net/http package

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