Use the net/http package to process HTTP response steps in Golang: Parse the response: Use the http.Response type to obtain the response information. Get status code: Use the StatusCode field to get the response status code. Get headers: Use the Header field to get the response headers, which is a map[string][]string. Read the response body: Read the response body using the Body field, which is io.Reader. Hands-on example: Retrieve the response using the JSON API, parse the JSON and print the title of the post.
How to handle HTTP responses using Golang
When you send an HTTP request, the server returns a response. This response contains information about the status of the request and the content of the request (if any). In Golang, you can use the net/http
package to handle HTTP responses.
Parse the response
To parse the HTTP response, you can use the http.Response
type. This type contains information about the response, including status code, headers, and response body. Here's how to parse the response:
resp, err := http.Get("https://example.com") if err != nil { // 处理错误 } defer resp.Body.Close()
Get the status code
To get the status code of the response, you can use the StatusCode
field:
statusCode := resp.StatusCode
Get the header
To get the response header, you can use the Header
field:
header := resp.Header
Header
field is a map[string][]string
where the keys are header names and the values are a list of header values.
Read the response body
To read the response body, you can use the Body
field:
body, err := ioutil.ReadAll(resp.Body) if err != nil { // 处理错误 }
Body The
field is io.Reader
from which the response body can be read.
Practical Case: Using JSON API
The following is a practical case demonstrating how to use Golang to retrieve JSON API response:
package main import ( "encoding/json" "fmt" "io/ioutil" "net/http" ) type Post struct {
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