Is it possible to send arrays in POST requests using Volley?

[andrew-k-21-12]

I'm having no luck to perform POST request with an array as param, while Postman and OkHttp are doing it correctly: http://stackoverflow.com/questions/43270880/what-is-a-correct-way-to-send-an-array-in-post-request-using-volley
Is it possible at all to encode arrays for POST requests in Volley?

[jpd236]

All Volley is doing is posting the raw bytes you tell it to in getBody(). If you're not seeing consistent behavior server-side, then dump the bytes of the request from a client that works and figure out what's different.

I don't think there's a Volley issue here. At a glance at your stack overflow post, your implementation of getBody() returns the bytes for this String:

items=247642&categories%5B%5D=12

but your Postman example is returning the bytes for this String:

items=247642&categories%5B%5D=10&categories%5B%5D=9

Unless that was an inadvertent error, then of course the former wouldn't return an array; there's only one "categories" element, whereas the latter has two. If that was just a typo, then dig into the difference in the request bytes as noted above.

[andrew-k-21-12]

The difference between two body strings is not very necessary. In fact I have tried both (and many other variants) - all of them with no luck in Volley. I'll try to make a dump of the request body on the server's side, maybe it'll lead me to some fresh idea...

P.S. I can't say that this issue is closed yet.