Retrieve JSON object from Okhttp3 response

Question

I want to retrieve a JSON object from Okhttp3 response. Service sends an image as a byte array with its status in a JSON object.

Server response as follows:

{
    "msg":"success",
    "msg_code":"001",
    "file":"<200 OK OK,URL [file:/E:/storage/bbb.jpg],[Content-Type:\"image/jpeg\"]>"
}

I can retrieve image when the service directly send byte array as the response, using response.body().bytes()

But I couldn't when the service sends image data inside JSON object.

in your json, it is receiving an URL you can use URL to show an image. — Ganesh Gudghe, Aug 13 '19 at 07:09
@GaneshGudghe Even URL sends the path, service only provides the image as a byte array. I want to get the byte array from "file" property(see above json object) — anjanagnet, Aug 13 '19 at 07:19
Bytearray in JSON object is not a good idea. You need to send image in base64 or other textual format inside JSON object. — Shaiful, Aug 13 '19 at 14:56
https://stackoverflow.com/questions/1443158/binary-data-in-json-string-something-better-than-base64 — Shaiful, Aug 13 '19 at 14:58

siwarak · Answer 1 · 2019-08-14T03:38:33.583

0

I think you may get response.body().bytes() = null on main thread because of output steam is already close.
Can you try the same way on "Background thread" by calling call.execute()

//Sorry i'm not native English speaker

edited Aug 14 '19 at 03:38

answered Aug 13 '19 at 07:27

siwarak

177
13

I'm calling network request using a background thread and I can get the result when service just sending the byte array as the response. But I can't when service sends the response as a json object. – anjanagnet Aug 13 '19 at 07:33
Could you provide some source code while convert JSON object to byte array. – siwarak Aug 14 '19 at 04:05

Retrieve JSON object from Okhttp3 response

1 Answers1