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I'm trying to add custom http header to my GET request I'm using Angular 8 and spring boot for my application. I can't get my head around of how to send this header in the right way, and why does the server dosen't get it.. here is my attempt to do so:(client)

const headers = new HttpHeaders().set("realityId", "0");

export class FileService {
constructor(private http: HttpClient) { }
getFileList(): Observable<any> {
return this.http.get(`${this.baseUrl}`,{headers});
}

and the relevant server code from my controller:

public HttpEntity<FlowersList> getFlowersFromFlowers(@RequestHeader String realityId, 
@RequestParam("mName") String mName)

no matter what I'm trying to do I keep on getting the error:

[org.springframework.web.bind.MissingRequestHeaderException: Missing request header 'realityId' for 
method parameter of type String]

I've been trying to do it like this:

 httpOptions = {
 headers: new HttpHeaders({ 'realityId': '0' })
  };

But nothing, I've been following this tutorial and this one, and trying to get help from this stuck overflow question.

Any help would be appreciate

P.s whatever solutions I find for angular 2 and 4 does not work for me..

edit: I also found this solution , tried the exact same thing, and still keep getting this error..I don't understand what I'm doing wrong

Tali
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2 Answers2

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try it like this:

let headers = new HttpHeaders();
headers = headers.set("realityId", "0");

the instance of the first headers is immutable.

Luka M
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You are not setting the headers. Try it like this: 

return this.http.get('url', {
  headers: yourHeaders
});

You have to pass the headers to the headers property

Memphis335
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