Use of testmempoolaccept is not clear. testmempoolaccept yields unexpected error. #21069

Giszmo commented at 2:50 AM on February 3, 2021: none

Expected behavior

I would expect to get no error message when using testmempoolaccept on a raw transaction that decodes just fine using decoderawtransaction or at least a hint at what went wrong.

Actual behavior

getrawtransaction ea369e4d7cbb9f2a2fd58dff4d0923112a00674faa1b35bfd6424f89c94ab653
0200000000010175c0e156c5c2545db4cf009a756a433677cce7d845f7626559329681379998950...
decoderawtransaction "0200000000010175c0e156c5c2545db4cf009a756a433677cce7d845..."
{
  "txid": "ea369e4d7cbb9f2a2fd58dff4d0923112a00674faa1b35bfd6424f89c94ab653",
  ...
testmempoolaccept ["0200000000010175c0e156c5c2545db4cf009a756a433677cce7d845f..."]
Error: Error parsing JSON: [0200000000010175c0e156c5c2545db4cf009a756a433677cce...

To reproduce

Probably always reproducible with confirmed transactions?

System information

bitcoin core 0.18.1 tgz, 0.20.0 snap and tgz

Giszmo added the label Bug on Feb 3, 2021

MarcoFalke commented at 7:05 AM on February 3, 2021: member

What are the exact steps to reproduce? GUI/CLI?

MarcoFalke removed the label Bug on Feb 3, 2021

MarcoFalke added the label Questions and Help on Feb 3, 2021

Giszmo commented at 12:04 PM on February 3, 2021: none

The above command-result-command-result sequence is copied from a freshly installed 0.21.0 (sorry. said 0.20.0 above) -> Window -> Console but with the other versions I used the bitcoin-core.cli equivalent.

Screenshot from 2021-02-03 09-03-18

MarcoFalke commented at 12:49 PM on February 3, 2021: member

It is not the best UX, but you have to type testmempoolaccept '["ffff"]'

MarcoFalke closed this on Feb 3, 2021

MarcoFalke added the label GUI on Feb 3, 2021

MarcoFalke added the label RPC/REST/ZMQ on Feb 3, 2021

Giszmo commented at 1:15 PM on February 3, 2021: none

Thanks for clarifying. I now see how that makes sense. Maybe the help should be changed then??

Screenshot from 2021-02-03 10-15-24

MarcoFalke commented at 3:55 PM on February 3, 2021: member

the oneline help only shows you the types, not the "encoding". Usually the encoding is done by a json library, but the gui (or the command line) doesn't have a json interpreter. You can find example calls for the command line (and gui) if you scroll down.

DrahtBot locked this on Aug 18, 2022