Snap: bitcoin-core doesn't accept requests from rust bitcoincore-rpc about packaging HOT 8 CLOSED

If it works with curl, but not with rust, then the problem seems to be in the rust code?

from packaging.

It works with every other bitcoin node I've tried it against.

from packaging.

Ok, I may take a look if you provide exact steps to reproduce on localhost.

from packaging.

After some debugging we noticed that the setup we have in which the bitcoin node is sitting behind a reverse proxy was the issue. We don't exactly know yet why but it looks like the reverse proxy is changing the request which results in it being invalid hence the HTTP 400 error.
Bypassing the reverse proxy and communicating directly with the bitcoin server worked.
However, it is still a mystery how sending the same request using curl through the reverse proxy works.

For context this is the request we used to test:

curl --user username:password -H 'Content-Type: application/json;' -d '{"jsonrpc":"2.0", "id": "1", "method": "getbestblockhash", "params" : []}' https://my-btc-node.mydomain.abc

from packaging.

Closing for now then. Discussion can continue / it can be re-opened if it's established that there is a bug in Bitcoin Core.

Also, looking at that crate, I assume the README is outdated, as it claims to only support end-of-life versions of Core: https://github.com/rust-bitcoin/rust-bitcoincore-rpc/#supported-bitcoin-core-versions ?

from packaging.