I have a REST service in Angular which returns JSON response. I need to get the response as string to do some pattern matching and value replacement.
I am using Angular 7. Below is my service.
getUIData(): Observable<any> {
const url = `${this.baseUrl}/uiData`;
return this.http.get<any>(url).pipe(
catchError(this.handleError<any>('Get Data:'))
);
}
By default
HttpClientwill return JSON Object
in your case you need to convert it to String. So do some changes like below,
getUIData(): Observable<any> {
const url = `${this.baseUrl}/uiData`;
return this.http.get<any>(url).map( response => JSON.stringify(response.data)).
catchError(this.handleError<any>('Get Data:');
}
as @dcg suggested use map instead of pipe to convert your response data to string in the Service method itself.
I hope it helps :).
You can do this in two ways :
1) set request headers as :
'Content-Type', 'text/plain; charset=utf-8'
2) Transform your response in stringified format inside map operator
JSON.stringify(data);
Note for second. it will still be JSON but stringified
mapoperator.