bitcoin-cli RPC client doesn't support HTTP chunked encoding. #6623

msgilligan commented at 9:01 PM on September 2, 2015: none

I'm working on a bitcoinj-based Bitcoin JSON-RPC server and discovered that bitcoin-cli will return:

error: no response from server

when the JSON-RPC server returns an HTTP chunked response. curl and my Java client work correctly with the server -- and if I modify the server to not send chunked responses bitcoin-cli works.

I can provide links to more info or to a test server if needed.

p.s. I tested on Mac OS X with a client built from source that reports v0.10.2.0-390ea20

msgilligan commented at 9:44 PM on September 2, 2015: none

For reference here is the issue I opened against jsonrpc4j which shows the workaround code I used to get bitcoin-cli to work: https://github.com/briandilley/jsonrpc4j/issues/80

msgilligan commented at 10:16 PM on September 2, 2015: none

To reproduce make sure you have JDK 8+ installed, then download and run an early version of bitcoinj-daemon:

curl -O -L https://bintray.com/artifact/download/msgilligan/maven/com/msgilligan/bitcoinj-daemon/0.0.2/bitcoinj-daemon-0.0.2.jar
java -jar bitcoinj-daemon-0.0.2.jar

Then run the client:

bitcoin-cli -rpcport=8080 getblockcount

You should get the following output:

error: no response from server

laanwj commented at 10:56 AM on September 3, 2015: member

As bitcoind doesn't ever send chunked encoding, that's not really a design goal either.

Having said that, try the bitcoin-cli from #5677, it is based on a more extensive HTTP implementation.

msgilligan commented at 11:56 AM on September 3, 2015: none

Thanks @laanwj

I'm developing a Bitcoin JSON-RPC server in Java (using bitcoinj) and my plan is to help make the server-side library (jsonrpc4j) configurable to not send chunked encoding. But I thought I'd open this issue to at least document it. I was using bitcoin-cli to test the Java server when I discovered this issue.

I'll try the new bitcoin-cli when it is merged in to master. I have written (with help from @dexX7 ) a Java Bitcoin RPC client and RegTest-mode integration tests for some of the RPCs. I'm in the process of moving the code from OmniLayer/OmniJ to msgilligan/bitcoinj-addons. You may want to consider running the client and integration tests against the new server implementation. Sometimes running a different implementation of the client can bring out issues in the server.

laanwj commented at 2:00 PM on September 4, 2015: member

It's been merged. I think it should work now.

laanwj added the label RPC on Sep 4, 2015

msgilligan commented at 5:30 PM on September 4, 2015: none

I pulled the latest master, built and ran bitcoin-cli against bitcoinj-daemon and it worked!

Thanks!

msgilligan closed this on Sep 4, 2015

MarcoFalke locked this on Sep 8, 2021