How to get profile information from pubkey

[steveboi123]

If I have a pubkey, how can I query to find out about their profile information like bio and lightning address?

Thank you

[lndrkzts]

You can do that using the README.md example named "Receive events from relays", but you need to change the filter to EventKind.SET_METADATA.

I really don't know if it's the most appropriate way but it worked for me. I'm just starting to explore this library.

[daiangan]

You can do that using the README.md example named "Receive events from relays", but you need to change the filter to EventKind.SET_METADATA.

I really don't know if it's the most appropriate way but it worked for me. I'm just starting to explore this library.

@lndrkzts can you please share your piece of code?

[daiangan]

After some tests, this is the final code to get profile updates using an npub:

import time
import uuid
from nostr.event import EventKind
from nostr.relay_manager import RelayManager
from nostr.key import PublicKey
from nostr.filter import Filter, Filters


pub_key = PublicKey.from_npub('npubxxxxxxxxxx')
filters = Filters([Filter(authors=[pub_key.hex()], kinds=[EventKind.SET_METADATA])])
subscription_id = uuid.uuid1().hex

relay_manager = RelayManager()
relay_manager.add_relay("wss://relay.snort.social")
relay_manager.add_relay("wss://relay.damus.io")
relay_manager.add_subscription_on_all_relays(subscription_id, filters)

time.sleep(1)

while relay_manager.message_pool.has_events():
  event_msg = relay_manager.message_pool.get_event()
  print(event_msg.event.content)
  
relay_manager.close_all_relay_connections()

Keep in mind that you need to add at least one of the relays where the update was done to have some results.

[PlebeiusGaragicus]

@daiangan is this code sample using the relay-threads branch?? I can't get that branch to work.

File "/Users/micah/Downloads/NOSTR/nospy/nospy/commands/publish.py", line 5, in <module>
    from nostr.relay_manager import RelayManager
  File "/Users/micah/Downloads/NOSTR/nospy/venv/lib/python3.11/site-packages/nostr/relay_manager.py", line 11, in <module>
    from .relay import Relay, RelayPolicy, RelayProxyConnectionConfig
  File "/Users/micah/Downloads/NOSTR/nospy/venv/lib/python3.11/site-packages/nostr/relay.py", line 32, in <module>
    @dataclass
     ^^^^^^^^^
  File "/opt/homebrew/Cellar/[email protected]/3.11.2_1/Frameworks/Python.framework/Versions/3.11/lib/python3.11/dataclasses.py", line 1220, in dataclass
    return wrap(cls)
           ^^^^^^^^^
  File "/opt/homebrew/Cellar/[email protected]/3.11.2_1/Frameworks/Python.framework/Versions/3.11/lib/python3.11/dataclasses.py", line 1210, in wrap
    return _process_class(cls, init, repr, eq, order, unsafe_hash,
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/opt/homebrew/Cellar/[email protected]/3.11.2_1/Frameworks/Python.framework/Versions/3.11/lib/python3.11/dataclasses.py", line 958, in _process_class
    cls_fields.append(_get_field(cls, name, type, kw_only))
                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/opt/homebrew/Cellar/[email protected]/3.11.2_1/Frameworks/Python.framework/Versions/3.11/lib/python3.11/dataclasses.py", line 815, in _get_field
    raise ValueError(f'mutable default {type(f.default)} for field '
ValueError: mutable default <class 'nostr.relay.RelayPolicy'> for field policy is not allowed: use default_factory

Also, I can't get your code to work using the main branch and changing function names of relay_manager.add_subscription_on_all_relays, etc. It runs, but doesn't get any events for the pubkeys I give it.

Stumped...

[PlebeiusGaragicus]

I FIGURED IT OUT!!

import time
import uuid
import ssl
import json
from nostr.event import EventKind
from nostr.relay_manager import RelayManager
from nostr.key import PublicKey
from nostr.filter import Filter, Filters
from nostr.message_type import ClientMessageType

def get_info():
    pub_key = PublicKey.from_npub('npub1xegedgkkjf24pl4d76cdwhufacng5hapzjnrtgms3pyhlvmyqj9suym08k')
    filters = Filters([Filter(authors=[pub_key.hex()], kinds=[EventKind.SET_METADATA])]) # TEXT_NOTE
    subscription_id = uuid.uuid1().hex

    request = [ClientMessageType.REQUEST, subscription_id]
    request.extend(filters.to_json_array())

    relay_manager = RelayManager()
    # relay_manager.add_relay("wss://nostr-pub.wellorder.net")
    # relay_manager.add_relay("wss://relay.snort.social")
    relay_manager.add_relay("wss://relay.damus.io")
    relay_manager.add_subscription(subscription_id, filters)
    relay_manager.open_connections({"cert_reqs": ssl.CERT_NONE})
    time.sleep(1.25) # allow the connections to open

    message = json.dumps(request)
    relay_manager.publish_message(message)
    time.sleep(1) # allow the messages to send

    while relay_manager.message_pool.has_events():
        event_msg = relay_manager.message_pool.get_event()

        data = json.loads(event_msg.event.content)
        pretty_json = json.dumps(data, indent=4)
        print(pretty_json)
    
    relay_manager.close_connections()

if __name__ == "__main__":
    get_info()