使用fetch将post请求发送到Golang服务器

package main

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

func handlePostRequest(w http.ResponseWriter, r *http.Request) {
    // 读取请求体
    body, err := ioutil.ReadAll(r.Body)
    if err != nil {
        http.Error(w, err.Error(), http.StatusInternalServerError)
        return
    }

    // 处理请求
    // ...

    // 返回响应
    fmt.Fprintf(w, "Post request received")
}

func main() {
    http.HandleFunc("/post", handlePostRequest)
    http.ListenAndServe(":8080", nil)
}

fetch('/post', {
  method: 'POST',
  headers: {
    'Content-Type': 'application/json'
  },
  body: JSON.stringify({ key: 'value' })
})
.then(response => response.text())
.then(data => {
  console.log(data); // 输出服务器返回的响应
})
.catch(error => {
  console.error('Error:', error);
});