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0

I am trying to download an attachment directly from my webapi using angular httpmodule. I've tried to change the responseType for 'blob', 'text' and 'arraybuffer' as angular documentation describes, but angular http module always returns an error in parse of response.

Note: If I call the api outside of angular (new browser tab) the file is downloaded correctly (<a href="fileLink" target="_blank"</a>), but I do not want to use this because I use JWT instead cookies, so the token is not send in requests outside from angular (I could pass jwt token as a param for the external call, but this sounds like an anti pattern)

Basically I just want to do an http call which returns an file (e.g excel, pdf, png) and then download it and save in the browser, but an error happens when angular http parse the response (the subscribe function is not even called). Maybe is something wrong with my response?

Here'is service http call code:

 downloadDocument(fileName: string): Observable<any> 
return this.http.post<any>(`/MYAPIROUTE/$fileName`, 
 responseType: 'blob' //note: i've tried blob,text and arraybuffer
);

This is my component code: (//NOTE: The subscribe is not being called due an error in http parse.)

 this.documentFileService.downloadDocument(fileName).subscribe((res) => 
 console.log('start download:',res);
 const data = res;
 const blob = new Blob([data], type: 'application/octet-stream' );

 this.sanitizer.bypassSecurityTrustResourceUrl(window.URL.createObjectURL(blob));
 , error => 
 console.log('download error:', JSON.stringify(error));
 , () => 
 console.log('Completed file download.')
 );

Maybe is something wrong with my http response (missing headers, etc?) even though it's working 100% for http calls outside from angular?

This is my response: (The response data it's the file by itself).

Thanks in advance.

angular

share|improve this question

edited Mar 27 at 21:14

R. Richards

16.3k99 gold badges4444 silver badges5050 bronze badges

asked Mar 27 at 21:11

Lucas SantosLucas Santos

30911 gold badge33 silver badges1313 bronze badges

add a comment | 

0

I am trying to download an attachment directly from my webapi using angular httpmodule. I've tried to change the responseType for 'blob', 'text' and 'arraybuffer' as angular documentation describes, but angular http module always returns an error in parse of response.

Note: If I call the api outside of angular (new browser tab) the file is downloaded correctly (<a href="fileLink" target="_blank"</a>), but I do not want to use this because I use JWT instead cookies, so the token is not send in requests outside from angular (I could pass jwt token as a param for the external call, but this sounds like an anti pattern)

Basically I just want to do an http call which returns an file (e.g excel, pdf, png) and then download it and save in the browser, but an error happens when angular http parse the response (the subscribe function is not even called). Maybe is something wrong with my response?

Here'is service http call code:

 downloadDocument(fileName: string): Observable<any> 
return this.http.post<any>(`/MYAPIROUTE/$fileName`, 
 responseType: 'blob' //note: i've tried blob,text and arraybuffer
);

This is my component code: (//NOTE: The subscribe is not being called due an error in http parse.)

 this.documentFileService.downloadDocument(fileName).subscribe((res) => 
 console.log('start download:',res);
 const data = res;
 const blob = new Blob([data], type: 'application/octet-stream' );

 this.sanitizer.bypassSecurityTrustResourceUrl(window.URL.createObjectURL(blob));
 , error => 
 console.log('download error:', JSON.stringify(error));
 , () => 
 console.log('Completed file download.')
 );

Maybe is something wrong with my http response (missing headers, etc?) even though it's working 100% for http calls outside from angular?

This is my response: (The response data it's the file by itself).

Thanks in advance.

angular

share|improve this question

edited Mar 27 at 21:14

R. Richards

16.3k99 gold badges4444 silver badges5050 bronze badges

asked Mar 27 at 21:11

Lucas SantosLucas Santos

30911 gold badge33 silver badges1313 bronze badges

add a comment | 

I am trying to download an attachment directly from my webapi using angular httpmodule. I've tried to change the responseType for 'blob', 'text' and 'arraybuffer' as angular documentation describes, but angular http module always returns an error in parse of response.

Note: If I call the api outside of angular (new browser tab) the file is downloaded correctly (<a href="fileLink" target="_blank"</a>), but I do not want to use this because I use JWT instead cookies, so the token is not send in requests outside from angular (I could pass jwt token as a param for the external call, but this sounds like an anti pattern)

Basically I just want to do an http call which returns an file (e.g excel, pdf, png) and then download it and save in the browser, but an error happens when angular http parse the response (the subscribe function is not even called). Maybe is something wrong with my response?

Here'is service http call code:

 downloadDocument(fileName: string): Observable<any> 
return this.http.post<any>(`/MYAPIROUTE/$fileName`, 
 responseType: 'blob' //note: i've tried blob,text and arraybuffer
);

This is my component code: (//NOTE: The subscribe is not being called due an error in http parse.)

 this.documentFileService.downloadDocument(fileName).subscribe((res) => 
 console.log('start download:',res);
 const data = res;
 const blob = new Blob([data], type: 'application/octet-stream' );

 this.sanitizer.bypassSecurityTrustResourceUrl(window.URL.createObjectURL(blob));
 , error => 
 console.log('download error:', JSON.stringify(error));
 , () => 
 console.log('Completed file download.')
 );

Maybe is something wrong with my http response (missing headers, etc?) even though it's working 100% for http calls outside from angular?

This is my response: (The response data it's the file by itself).

Thanks in advance.

angular

share|improve this question

edited Mar 27 at 21:14

R. Richards

16.3k99 gold badges4444 silver badges5050 bronze badges

asked Mar 27 at 21:11

Lucas SantosLucas Santos

30911 gold badge33 silver badges1313 bronze badges

 downloadDocument(fileName: string): Observable<any> 
return this.http.post<any>(`/MYAPIROUTE/$fileName`, 
 responseType: 'blob' //note: i've tried blob,text and arraybuffer
);

 this.documentFileService.downloadDocument(fileName).subscribe((res) => 
 console.log('start download:',res);
 const data = res;
 const blob = new Blob([data], type: 'application/octet-stream' );

 this.sanitizer.bypassSecurityTrustResourceUrl(window.URL.createObjectURL(blob));
 , error => 
 console.log('download error:', JSON.stringify(error));
 , () => 
 console.log('Completed file download.')
 );

angular

angular

share|improve this question

edited Mar 27 at 21:14

R. Richards

16.3k99 gold badges4444 silver badges5050 bronze badges

asked Mar 27 at 21:11

Lucas SantosLucas Santos

30911 gold badge33 silver badges1313 bronze badges

share|improve this question

edited Mar 27 at 21:14

R. Richards

16.3k99 gold badges4444 silver badges5050 bronze badges

asked Mar 27 at 21:11

Lucas SantosLucas Santos

30911 gold badge33 silver badges1313 bronze badges

edited Mar 27 at 21:14

R. Richards

16.3k99 gold badges4444 silver badges5050 bronze badges

edited Mar 27 at 21:14

R. Richards

16.3k99 gold badges4444 silver badges5050 bronze badges

asked Mar 27 at 21:11

Lucas SantosLucas Santos

30911 gold badge33 silver badges1313 bronze badges

asked Mar 27 at 21:11

Lucas SantosLucas Santos

30911 gold badge33 silver badges1313 bronze badges