Errors parsing the response or Client RPC

[amanusk]

I am trying to use the client RPC to interact with the basic abci-cli kvstore application.
I have run tendermint node and abci-cli kvstore from two terminals.
RPC calls with curl as in the examples here all work as expected.

To try and broadcast a transaction from rust I use the following code:

use tendermint::rpc::Client;

fn main() {
    let client = Client::new(&"tcp://127.0.0.1:26657".parse().unwrap()).unwrap();

    let j = "abcd";

    let tx = tendermint::abci::transaction::Transaction::new(j.as_bytes().to_owned());
    let response = client.broadcast_tx_sync(tx).unwrap();
    println!("{:?}", response);
}

I am getting the error

thread 'main' panicked at 'called `Result::unwrap()` on an `Err` value: Error { code: ParseError, message: "Parse error. Invalid JSON", data: Some("invalid type: integer `0`, expected a string at line 5 column 13") }', src/libcore/result.rs:1084:5

When calling curl 'localhost:26657/abci_query?path=""&data="abcd"&prove=false' afterwards, I do get a response where I can see that abcd was indeed stored successfully, so the problem is with parsing the response on the client side.

From some poking around it seems that this has to do with the Code field in the response, perhaps it should be "0" and not 0.

Any help solving this is appreciated. Is this a problem of the RPC documentation?

[tarcieri]

@amanusk it's possible the Tendermint RPC API changed to return an integer here rather than a string. If so the code parser needs to be modified... ideally to accept both.