[bug]: SignMessage endpoint unavailable despite litd running

[weltitob]

When trying to use the SignMessage RPC endpoint via litd (running through Docker), I receive an error stating that lnd is not ready for: /lnrpc.Lightning/SignMessage. This is unexpected because litd is up and running, and the subserver appears to be initialized. It is unclear whether signrpc is included in the current Docker image or if additional steps are needed to enable it.

I am not compiling LND myself — I’m relying on the available Docker image and running litd with --enablerest. I'm unsure how to confirm or modify the build_tags in this context.

Version of lnd: v0.18.5-beta (via lncli version)

Version of litd: v0.14.1-alpha
Operating system: Docker (host OS Ubuntu)
Running via Docker with no custom Go build or source modification simple docker LITD
lncli version 0.18.5-beta (commit=lightning-terminal-v0.14.1-alpha)
litd version 0.14.1-alpha (commit=v0.14.1-alpha)

The RPC being active call fails with:
{"code":2,"message":"lnd is not ready for: /lnrpc.Lightning/SignMessage","details":[]}

Why do I need to sync with blockchain in order to sign a message?

[weltitob]

btw via cli this works completly fine and we can sign messages using lncli --network=testnet signmessage "test message" ==> only via api this breaks thats why I think this is a bug / should be changed

[starius]

I checked Rest API of LND 0.19.1 with this Python script:

import base64, codecs, json, requests

REST_HOST = '127.0.0.1:20080'
MACAROON_PATH = '/home/user/.lnd/data/chain/bitcoin/signet/admin.macaroon'
TLS_PATH = '/home/user/.lnd/tls.cert'

url = f'https://{REST_HOST}/v1/signmessage'
macaroon = codecs.encode(open(MACAROON_PATH, 'rb').read(), 'hex')
headers = {'Grpc-Metadata-macaroon': macaroon}
data = {
  'msg': "AAAA",
  'single_hash': False,
}
r = requests.post(url, headers=headers, data=json.dumps(data), verify=TLS_PATH)
print(r.json())

The script works for me.

Can you adjust the script for your environment and check if it works, please?

Can you also post the command you use to run the docker image, please?