signal-cli-rest-api example works but cannot register signalbot device

[jaanli]

I was able to run these steps on a Lightsail Ubuntu AWS machine: https://github.com/bbernhard/signal-cli-rest-api?tab=readme-ov-file#getting-started

To test, I sent a few test messages using the example:

$ curl -X POST -H "Content-Type: application/json" 'http://localhost:8080/v2/send' \
     -d '{"message": "Test via Signal API!", "number": "+4412345", "recipients": [ "+44987654" ]}' 

However, when I continue along this repo's readme, and run step 1:

docker run -p 8080:8080 \
    -v $(PWD)/signal-cli-config:/home/.local/share/signal-cli \
    -e 'MODE=normal' bbernhard/signal-cli-rest-api:0.57

This succeeds.

But when I proceed to step 2, I get this error:

{"error":"Couldn't create QR code: no data to encode"}

Screenshot:

The full log:

$ sudo docker run -p 8080:8080 \
    -v $(pwd)/signal-cli-config:/home/.local/share/signal-cli \
    -e 'MODE=normal' bbernhard/signal-cli-rest-api:0.57
+ set -e
+ [ -z /home/.local/share/signal-cli ]
+ usermod -u 1000 signal-api
usermod: no changes
+ groupmod -g 1000 signal-api
+ chown 1000:1000 -R /home/.local/share/signal-cli
+ cat
+ cap_prefix=-cap_
+ cat /proc/sys/kernel/cap_last_cap
+ seq -s ,-cap_ 0 40
+ caps=-cap_0,-cap_1,-cap_2,-cap_3,-cap_4,-cap_5,-cap_6,-cap_7,-cap_8,-cap_9,-cap_10,-cap_11,-cap_12,-cap_13,-cap_14,-cap_15,-cap_16,-cap_17,-cap_18,-cap_19,-cap_20,-cap_21,-cap_22,-cap_23,-cap_24,-cap_25,-cap_26,-cap_27,-cap_28,-cap_29,-cap_30,-cap_31,-cap_32,-cap_33,-cap_34,-cap_35,-cap_36,-cap_37,-cap_38,-cap_39,-cap_40
+ [ normal = json-rpc ]
+ hostname -i
+ export HOST_IP=xxx
+ exec setpriv --reuid=1000 --regid=1000 --init-groups --inh-caps=-cap_0,-cap_1,-cap_2,-cap_3,-cap_4,-cap_5,-cap_6,-cap_7,-cap_8,-cap_9,-cap_10,-cap_11,-cap_12,-cap_13,-cap_14,-cap_15,-cap_16,-cap_17,-cap_18,-cap_19,-cap_20,-cap_21,-cap_22,-cap_23,-cap_24,-cap_25,-cap_26,-cap_27,-cap_28,-cap_29,-cap_30,-cap_31,-cap_32,-cap_33,-cap_34,-cap_35,-cap_36,-cap_37,-cap_38,-cap_39,-cap_40 signal-cli-rest-api -signal-cli-config=/home/.local/share/signal-cli
time="2024-04-21T15:19:39Z" level=info msg="Started Signal Messenger REST API"
[GIN] 2024/04/21 - 15:19:57 | 400 |  2.608821556s |      172.17.0.1 | GET      "/v1/qrcodelink?device_name=local"

Has anyone else run into this? Any ideas on how to debug?

The goal is to integrate with the Claude API (https://docs.anthropic.com/claude/reference/getting-started-with-the-api) and my Open Interpreter (https://github.com/OpenInterpreter/open-interpreter).

Really excited to test this out!!

[jaanli]

Maybe I need to have this service running in the background? https://github.com/bbernhard/signal-cli-rest-api - and I see in the readme it says "To run the the bot you need to start the signal-cli-rest-api service and link your device with it.". I linked my device, and then I stopped the service.

[filipre]

Maybe I need to have this service running in the background?

Yes, the python package acts as a handy wrapper around the signal-cli-rest-api service which is responsible for interacting with the signal servers

[filipre]

{"error":"Couldn't create QR code: no data to encode"}

I'm not sure what the issue is but you could head to signal-cli-rest-api since its coming from that project

[jaanli]

Thanks @filipre ! I confirmed that the issue does not happen with https://github.com/bbernhard/signal-cli-rest-api.

Specifically, this command in the readme does not work:

docker run -p 8080:8080 \
    -v $(PWD)/signal-cli-config:/home/.local/share/signal-cli \
    -e 'MODE=normal' bbernhard/signal-cli-rest-api:0.57

It first yields an error about the $(PWD) being incorrect (on Ubuntu 22.04.1 LTS on AWS Lightsail).

Next, the QR code does not work or generate (says error, cannot generate).

This command fixes it:

docker run -p 8080:8080 \
    -v $HOME/signal-cli-config:/home/.local/share/signal-cli \
    -e 'MODE=normal' bbernhard/signal-cli-rest-api

Then I'm able to complete step 1 of the README.

Is this helpful? Do you need any further details on these errors to reproduce? Thanks so much!!

This might be related to the following issues when I try to complete the README:

Running this command:

docker run -p 8080:8080 \ \
    -v $HOME/signal-cli-config:/home/.local/share/signal-cli \
    -e 'MODE=json-rpc' bbernhard/signal-cli-rest-api:0.57

Results in this error:

+ [ json-rpc = json-rpc ]
+ /usr/bin/jsonrpc2-helper
time="2024-05-12T18:57:43Z" level=info msg="Found number  and added it to jsonrpc2.yml"
+ service supervisor start
Starting supervisor: supervisord.
+ supervisorctl start all
+ hostname -i
+ export HOST_IP=172.17.0.2
+ exec setpriv --reuid=1000 --regid=1000 --init-groups --inh-caps=-cap_0,-cap_1,-cap_2,-cap_3,-cap_4,-cap_5,-cap_6,-cap_7,-cap_8,-cap_9,-cap_10,-cap_11,-cap_12,-cap_13,-cap_14,-cap_15,-cap_16,-cap_17,-cap_18,-cap_19,-cap_20,-cap_21,-cap_22,-cap_23,-cap_24,-cap_25,-cap_26,-cap_27,-cap_28,-cap_29,-cap_30,-cap_31,-cap_32,-cap_33,-cap_34,-cap_35,-cap_36,-cap_37,-cap_38,-cap_39,-cap_40 signal-cli-rest-api -signal-cli-config=/home/.local/share/signal-cli
time="2024-05-12T18:57:44Z" level=info msg="Started Signal Messenger REST API"
time="2024-05-12T18:57:45Z" level=error msg="Couldn't read data for number : EOF. Is the number properly registered?"

I already confirmed that I'm able to run the example here: https://github.com/bbernhard/signal-cli-rest-api?tab=readme-ov-file#dockerized-signal-messenger-rest-api and successfully sent a test message.