Upload Image to Server in Android - Retrofit Tutorial with Source Code

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In this tutorial we will see how we can upload image to server using Retrofit in Android Studio. To upload image we have to use multipart/form-data. Multipart sends a single object(file) in divided in multiple parts, each part is separated by a boundary and has some portion of object’s data. Each part also has its own headers like Content-Type, Content-Deposition.
In this tutorial we use Retrofit as network library, as it has built in support for multipart. We will go through the following steps in this tutorial:
1. Add Dependencies to Gradle
2. Create Retrofit Instance
3. Create Upload API
4. Upload the Image

So we have seen how we can upload image to the server in Android using Retrofit, if you have any confusion please feel free to drop them in the comments below.

[milanmalla]

Works like a charm. Tnks a lot brother..

[md.harunorrashid]

Excellent work ... Simple code but its Working

[beltechnology]

its always going into onFailure method with this ) for android 9 version.please give me reply with answer

[vasimkherani]

please make video for multiple image upload using retrofit and php

[ranjithjose]

can you share php api files to retrieve this..

[xxmtnvw]

please I have a question, we will follow the same method if the server is spring boot or not??

[georgealbo]

Could.you please create a server that accepts the call.of the api

[arttech]

if we want to upload images to firebase with this can we do ?, , if we can do then how ?, ,

[Roozbeh]

somebody borrow me a magnifier to see that code :))))
thanks a lot friend
just make your font size bigger :)

[upendsingh]

how do I upload the bitmap directly without converting it to file??

[pablolarade]

i miss the part of layout part or what in you sources code no mainLayout? waste of time or lack of attention.

[georgealbo]

Error. Anchor trust certification not found

[nickray]

My code doesn't work on some mobile phones. Do you know what should I do? The result is null in this case!!

[project_manager]

The return type should be 'ResponseBody', not 'RequestBody'

[rattansingh]

What If I want to send multiple files ?

[mrclnotmrci]

HI, I create Toast for both onResponse and onFailure to see whether the photo can be upload or not, but it seems like it is always on failure, how can I solve this?

[lucarocklv]

what exactly is the purpose of this video?

[mohamed_akram]

Unfortunately, I can't dislike more than once

[sanjeevmitra]

Could you please help me with the backend java rest api.. I tried with the below code but it is not working.
Kindly help

Retrofit

@Multipart

@POST("uploadFile")

Java Rest API

)

[naveennirban]

i have watched 3 videos,
none of their description had link to get uri of file