What should I return without pictures?

Asked Mar 21 '18 at 08:56

Active Mar 21 '18 at 08:56

Viewed 35 times

I have an API.

@GET
@Path("picture")
@Produces("image/jpeg")
Response getPicture(@QueryParam("key") String key);

The corresponding service.

@Override
public Response getPicture(String key) {
    try{
        byte[] image = service.getPicture(key);
        if (image == null) {

        }
        return Response.ok(new ByteArrayInputStream(image)).build();
    } catch (Exception e) {

    }
    return null;
}

I try to return null and return Response.ok(new ByteArrayInputStream(null)).build(), but I will get an exception.

What does this method return when image is empty?

asked Mar 21 '18 at 08:56

dai

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throw e.g. a 404 since the request was **not** ok. – luk2302 Mar 21 '18 at 08:58
@luk2302 But I did receive this request, only the requested parameter error. – dai Mar 21 '18 at 09:12
@Frank.Dai 404 means "client error: file not found". If the client made a request that points to a file that does not exist, it's correct to return a 404 error. – Federico klez Culloca Mar 21 '18 at 09:24
I see. Thank you for your patience. – dai Mar 21 '18 at 09:37

What should I return without pictures?

0 Answers0