Post request as API is not working

[uniqueanurag]

Hi,
I'm hitting below URL i can view the below data
https://localhost/rest-api/songs/loginStats/Administrator/Anurag/yug

[{"first_name":"Yug","last_name":"Sinha","token":"3242746237678236578346","roll":"Administrator","last_login":"2020-04-02 00:34:41","user_type":"Administrator"}]

When i'm requesting using Angular 8 I'm getting error only

const headers = new HttpHeaders()
.append('Content-Type', 'application/json')
.append('Access-Control-Allow-Headers', 'Content-Type')
.append('Access-Control-Allow-Methods', 'GET')
.append('Access-Control-Allow-Origin', '*');
return this.http.post(${environment.apiUrl}/songs/loginStats, { usertype,username, password },{headers: headers})
.pipe(map(user => {

payload parameter not coming in function

Regards
Anurag