英文:
Golang - Sending API POST Request - Not enough arguments error
问题
以下是翻译好的内容：
以下代码尝试使用位于RequestDetails.FormData中的有效负载发送POST API请求。当我运行main.go函数时，我得到以下错误。
go run main.go
# command-line-arguments
./main.go:53:17: 调用http.HandleFunc时参数不足
./main.go:53:33: 调用reqDetails.Send时参数不足
有 ()
需要 (http.ResponseWriter, *http.Request)
./main.go:53:33: reqDetails.Send() 用作值
以下是代码。有人知道我在这里做错了什么吗？非常感谢您的帮助。
//main.go
package main
import (
"bytes"
"encoding/json"
"fmt"
"log"
"net/http"
)
// RequestDetails 包含Send的输入数据
type RequestDetails struct {
EndPoint string
FormType string
FormData map[string]string
}
// Send 向端点发送API POST请求
func (rd RequestDetails) Send(w http.ResponseWriter, r *http.Request) {
json_data, err := json.Marshal(rd.FormData)
if err != nil {
log.Fatal(err)
}
resp, err := http.Post(rd.EndPoint, rd.FormType, bytes.NewBuffer(json_data))
if err != nil {
log.Fatal(err)
}
fmt.Println(resp)
}
func main() {
m := map[string]string{
"AuthParamOne": "AP0000001",
"AuthParamTwo": "AP0000002",
"AuthParamThree": "AP0000003",
}
reqDetails := RequestDetails{
EndPoint: "https://httpbin.org/post",
FormType: "application/json",
FormData: m,
}
http.HandleFunc(reqDetails.Send())
}
英文:
The following code attempts to send a POST API request with a payload that is in RequestDetails.FormData. When I run main.go function, then I get the following errors.
go run main.go
# command-line-arguments
./main.go:53:17: not enough arguments in call to http.HandleFunc
./main.go:53:33: not enough arguments in call to reqDetails.Send
have ()
want (http.ResponseWriter, *http.Request)
./main.go:53:33: reqDetails.Send() used as value
The code is available below. Anybody knows what I could do wrong here? Thanks a lot for your help.
//main.go
package main
import (
"bytes"
"encoding/json"
"fmt"
"log"
"net/http"
)
// RequestDetails contains input data for Send
type RequestDetails struct {
EndPoint string
FormType string
FormData map[string]string
}
// Send sends API POST request to an endpoint
func (rd RequestDetails) Send(w http.ResponseWriter, r *http.Request) {
json_data, err := json.Marshal(rd.FormData)
if err != nil {
log.Fatal(err)
}
resp, err := http.Post(rd.EndPoint, rd.FormType, bytes.NewBuffer(json_data))
if err != nil {
log.Fatal(err)
}
fmt.Println(resp)
}
func main() {
m := map[string]string{
"AuthParamOne": "AP0000001",
"AuthParamTwo": "AP0000002",
"AuthParamThree": "AP0000003",
}
reqDetails := RequestDetails{
EndPoint: "https://httpbin.org/post",
FormType: "application/json",
FormData: m,
}
http.HandleFunc(reqDetails.Send())
}
答案1
得分: 3
你必须在下面的代码中使用HandleFunc：
func HandleFunc(pattern string, handler func(ResponseWriter, *Request))
对于上面的代码，请按照以下方式操作：
http.HandleFunc("/test", reqDetails.Send) //-> 添加引用而不是调用'reqDetails.Send()'
参考链接：https://pkg.go.dev/net/http#HandleFunc
请投票支持 
英文:
you have to use HandleFunc in following below:
func HandleFunc(pattern string, handler func(ResponseWriter, *Request))
for code above follow this:
http.HandleFunc("/test",reqDetails.Send) //-> add reference instead of calling 'reqDetails.Send()'
reference: https://pkg.go.dev/net/http#HandleFunc
please vote up
答案2
得分: 2
在你的Send方法中，你没有使用w http.ResponseWriter和r *http.Request，所以看起来你不需要它们：
func (rd RequestDetails) Send() {...
另外，在你的最后一行，HandleFunc需要不同的参数，这在你的情况下也是不必要的。只需尝试运行Send方法：
reqDetails.Send()
整个main.go文件如下：
//main.go
package main
import (
"bytes"
"encoding/json"
"fmt"
"log"
"net/http"
)
// RequestDetails包含Send方法的输入数据
type RequestDetails struct {
EndPoint string
FormType string
FormData map[string]string
}
// Send向端点发送API POST请求
func (rd RequestDetails) Send() {
json_data, err := json.Marshal(rd.FormData)
if err != nil {
log.Fatal(err)
}
resp, err := http.Post(rd.EndPoint, rd.FormType, bytes.NewBuffer(json_data))
if err != nil {
log.Fatal(err)
}
fmt.Println(resp)
}
func main() {
m := map[string]string{
"AuthParamOne": "AP0000001",
"AuthParamTwo": "AP0000002",
"AuthParamThree": "AP0000003",
}
reqDetails := RequestDetails{
EndPoint: "https://httpbin.org/post",
FormType: "application/json",
FormData: m,
}
reqDetails.Send()
}
英文:
In your Send method, you don't make use of w http.ResponseWriter, r *http.Request, So it seems you don't need them:
func (rd RequestDetails) Send() {...
Also in your last line, HandleFunc requires different arguments which once again is not necessary in your case. Just try to run the Send method:
reqDetails.Send()
The whole main.go file:
//main.go
package main
import (
"bytes"
"encoding/json"
"fmt"
"log"
"net/http"
)
// RequestDetails contains input data for Send
type RequestDetails struct {
EndPoint string
FormType string
FormData map[string]string
}
// Send sends API POST request to an endpoint
func (rd RequestDetails) Send() {
json_data, err := json.Marshal(rd.FormData)
if err != nil {
log.Fatal(err)
}
resp, err := http.Post(rd.EndPoint, rd.FormType, bytes.NewBuffer(json_data))
if err != nil {
log.Fatal(err)
}
fmt.Println(resp)
}
func main() {
m := map[string]string{
"AuthParamOne": "AP0000001",
"AuthParamTwo": "AP0000002",
"AuthParamThree": "AP0000003",
}
reqDetails := RequestDetails{
EndPoint: "https://httpbin.org/post",
FormType: "application/json",
FormData: m,
}
reqDetails.Send()
}
答案3
得分: 0
如果你的代码像这样：
watcher := bufio.NewReader(os.Stdin)
input, _ := watcher.ReadString()
fmt.Println(input)
你需要这样来读取一行：
old -> input, _ := watcher.ReadString()
new -> input, _ := watcher.ReadString('\n')
英文:
if your code like this
watcher := bufio.NewReader(os.Stdin)
input, _ := watcher.ReadString()
fmt.Println(input)
you needed this for reading line line
old -> input, _ := watcher.ReadString()
new -> input, _ := watcher.ReadString('\n')
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