Angular 2 -POST 401 未经授权

Question

I am using angular 2. I want to post data using API, but I get unauthorized access error...

Can someone help me figure out why am I getting this error?

Answer 1

Check with the headers you configured for Authorization in service.ts file. If it's not you need to add the headers to the URL.

Headers can be used as

const httpOptions = {
    headers: new HttpHeaders({
        'Authorization': 'Bearer ' + localStorage.getItem('token')
    })
} 

And add this to the URL as follows. As and example:

getUsers() {
    return this.http.get(this.baseUrl + 'users', httpOptions);
}

Answer 2

Check your API authentication scheme. you might need to login first ( if using cookies ). Or provide some authentication header.

Answer 3

Your problem is missing or wrong content type header.

For post method requests your content type should be one of the standard form types: application/x-www-form-urlencoded or multipart/form-data