I have integrated socket.io into my android application to make a chat application. Now I wants to upload and share files like images, mp3 or doc file etc. How do I upload a file with socket.io I cannot find any documentation for doing.
2 Answers
It is not a good practice. This may lead blocking heartbeat messages between client and server if upload progress is long.
You may upload file with http post and send download link to chat peer. By doing this, a new connection is established for uploading and never breaks socket.io session.
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I believe it should be a good practice to do in Android, as it works pretty well on web JS for small files such as Images, PDFs, etc.
But ya sending the whole file in a single shot is not a good practice(theoretically there should be no problem in doing that using socket.io), but it's better if you can the fragment the file into smaller pieces (maybe 2^10 to 2^20 bytes), and send it in pieces, doing so will also allow you to know the percentage of file's data transferred.
I am not good with JAVA, but I hope you can find a way to do that fragmentation thing.
But there is no inbuilt resource available in socket.io to transfer files, but you won't have any problem in sending pure Buffer(including '\0' in it) if you can manage to create a JSON object in JAVA without involving strings. As '\0' inside Strings messes them up.
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