Okhttp: Always return response content length is -1

[serkandaglioglu]

I tried with a lot of different urls but always response content length is -1

OkHttpClient okHttpClient = new OkHttpClient.Builder()
                .connectTimeout(10, TimeUnit.SECONDS)
                .readTimeout(10, TimeUnit.SECONDS)
                .build();

Request request = new Request.Builder()
                .addHeader("Referer", "http://www.google.com")
                .addHeader("User-Agent", "Mozilla/5.0 (Macintosh; Intel Mac OS X 10.12; rv:52.0) Gecko/20100101 Firefox/52.0")
                .addHeader("Connection", "keep-alive");
                .url(url).build();
Response response = client.newCall(request).execute();

boolean isSuccessful = response.isSuccessful();
int contentLength = response.body().contentLength();

Response return 200 code but contentLength is equal -1 and isSuccessful is true. I dont know what should I do? I tried 20 different urls but result is same.

NOTES:

• I use emulator.
• gradles >> classpath 'com.android.tools.build:gradle:2.3.1' and compile 'com.squareup.okhttp3:okhttp:3.7.0'

[JakeWharton]

A content length of -1 means unknown. You can still call .string() or .bytes() or stream the body with .source(). This is usually because of transparent gzip which prevents us from knowing the actual body length.

[serkandaglioglu]

@JakeWharton you are right. I debugged responseBody.string() is success. So it means there is no problem with my code?

[JakeWharton]

Correct. It just means that the length isn't known and must be streamed.

[serkandaglioglu]

@JakeWharton thanks a lot. you saved my time