Kerwan Kerwan - 6 months ago 86
Android Question

Retrofit callback get response body

I am testing Retrofit to compare it with Volley and I am struggling to get the response from my requests. For example, I do something like this:

RestAdapter restAdapter = new RestAdapter.Builder()
.setEndpoint("http://localhost:8080")
.build();

MyService service = restAdapter.create(MyService.class);
service.getToto("toto", new Callback<Toto>() {

@Override
public void success(Toto toto, Response response) {
// Try to get response body
BufferedReader reader = null;
StringBuilder sb = new StringBuilder();
try {
reader = new BufferedReader(
new InputStreamReader(response.getBody().in()));
String line;
try {
while ((line = reader.readLine()) != null) {
sb.append(line);
}
} catch (IOException e) {
e.printStackTrace();
}
} catch (IOException e) {
e.printStackTrace();
}
String result = sb.toString();
}

@Override
public void failure(RetrofitError error) {}
});


It works, the object
toto
is set, but for testing purposes, I also want to display the JSON response returned by the server.

So I am trying to read the
InputStream
from
response.getBody()
which is a
TypedInputStream
.
Unfortunately, I always get an
IOException : Stream is closed
.

I tried to use the Utils class from Retrofit but I get the same
IOException
error.

Answer

Inside callback's angle brackets write "Response" and then extract the stream from this response.

service.getToto("toto", new Callback<Response>() {
    @Override
    public void success(Response result, Response response) {

        //Try to get response body
        BufferedReader reader = null;
        StringBuilder sb = new StringBuilder();
        try {

            reader = new BufferedReader(new InputStreamReader(result.getBody().in()));

            String line;

            try {
                while ((line = reader.readLine()) != null) {
                    sb.append(line);
                }
            } catch (IOException e) {
                e.printStackTrace();
            }
        } catch (IOException e) {
            e.printStackTrace();
        }


        String result = sb.toString();
    }

    @Override
    public void failure(RetrofitError error) {

    }
});
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