I'm wondering how to send an HTTP post request without a body (specifically in Angular). Here's what I'm doing now, but I'm getting the error Expected 2-3 arguments, but got 1).
I realize the second argument is for the body, but I'm not sending that to the server (yes, I understand that a POST call changes the state of a system and have looked into THIS question).
postRequest(id) {
this.http.post('/api?data=' + id).map(
(response) => {
return response;
}
)
}
If null is not working (4XX error client side), try with {} JSON:
postRequest(id) {
this.http.post('/api?data=' + id, {}).map((response) => {return response;});
}
Go to definition of POST method using your IDE and you can see passing either body: any | null are the available inputs
post(url: string, body: any | null, options: {
headers?: HttpHeaders | {
[header: string]: string | string[];
};
Try to call HTTP 'Post' without passing a 'body', and got this error in Angular 6 -
If we go to definition of POST method in client.d.ts, it shows that post method required either 'body' or 'null' value (e.g. - body: any | null)-
post(url: string, body: any | null, options?: {
...
}): Observable<Object>;
Solution - I just added 'null' and the error gone -
postSync(): any {
return this.http.post(`${environment.apiUrl}/xyz/sync-api`, null);
}