CODEWITHSUNDEEP
jsonhttpgopostmangorilla
fnaticrc_getright
fnaticrc_getright

Reputation: 21

Request Body is null in Go lang (Postman)

I am using Postman to post the json string on localhost. The json string that Iam passing in Postman is : 

{
    “name”: "foo"
}

However, when I retrieve the data in my test function, the req.Body i get something like this : &{%!s(*io.LimitedReader=&{0xc0820142a0 0}) <nil> %!s(*bufio.Reader=<nil>) %!s(bool=false) %!s(bool=true) {%!s(int32=0) %!s(uint32=0)} %!s(bool=true) %!s(bool=false) %!s(bool=false)}

I wish to get the name:foo in the request body.

My go lang code for the same is : 

import (
    "encoding/json"
    "fmt"
    "net/http"
)

type Input struct {
    Name string `json:"name"`
}


func test(rw http.ResponseWriter, req *http.Request) {
    var t Input
    json.NewDecoder(req.Body).Decode(&t)
    fmt.Fprintf(rw, "%s\n", req.Body)
}

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

Can anyone tell me why I am getting blank data in the req.Body attribute ? Thanks a lot.

Upvotes: 1

Views: 4817

Answers (1)

nvcnvn
nvcnvn

Reputation: 5175

Reuqes Body should be empty because you already read all from it. But that not the issue.
From your question, it seem your input is not valid JSON (you have “ which is different with ").
The Decode method will return error, you should check that.

if err := json.NewDecoder(req.Body).Decode(&t); err != nil {
  fmt.Println(err)
}

Upvotes: 1

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