fundrawtransaction JSON value is not a string as expected #21858

unable to add the option data to fundrawtransaction in Bitcoin Core version v0.21.1

Hi @diadal, can you provide the OS platform and rpc calls or cli commands made to reproduce your issue?

key and value must be double quote

$options = [
            "changeAddress" => "" . $adr,
            "estimate_mode" => "ECONOMICAL"
        ];

this work before I want using single quote without any issue

Mac Catalina and Big Sur rpc calls

The options are a JSON object. I don't know what language you are using (PHP?) but as a guess, for a JSON object it might need to be in curly braces, e.g. options = {'changeAddress' => "" . $adr, 'estimate_mode' => 'ECONOMICAL'} and so on.

yes php it working now

with this $options = [ "changeAddress" => "" . $adr, "estimate_mode" => "ECONOMICAL" ];

this {'changeAddress' => "" . $adr, 'estimate_mode' => 'ECONOMICAL'} will give error php 7.4 above no longer support {}

both Object key and value must be double quote for Bitcoin Core version v0.21.1 while fundrawtransaction

Are you saying that the quote-handling behavior of the Bitcoin Core fundraw RPC changed in 0.21.1 since a previous version, with the same environment and code on your side? If yes, what was the previous version of Bitcoin Core?

the issue only occurs on this 0.21.1 0.21.0 below never give me this issue I user single quote '' before but I have to change to double "" only on fundrawtransaction other RPC still work fine with a single quote

am using php 8

That is very surprising. Those single or double quotes aren't even sent to Bitcoin Core.

well have tried again mac book Catalina and Mac mini Big Sur same issue working only with double quotes due both pc are PHP 8 maybe but 0.21.0 works

Could be a good idea to re-verify that something else didn't change or get updated in your development environment, e.g. language version or other libraries or dependencies.

Which php library are you using?

laravel 8

Is this https://github.com/denpamusic/laravel-bitcoinrpc ? If yes, they might be able to help you, since none of us know anything about PHP and this looks like an issue unrelated to Bitcoin Core at first.

Is this https://github.com/denpamusic/laravel-bitcoinrpc ? If yes, they might be able to help you, since none of us know anything about PHP and this looks like an issue unrelated to Bitcoin Core at first.

no don't stress yourself already fix this I said it before that using double quotes fixed this issue

yes php it working now

with this $options = [ "changeAddress" => "" . $adr, "estimate_mode" => "ECONOMICAL" ];

Again, none of us know any PHP and without a dump of the serialized data that triggers the bug, there is nothing we can do. Alternatively, if you can reproduce the bug with bitcoin-cli, it would help us.

Closing for now until we have more info

alright