nostr-gem/docs/core/user.md

User

The class Nostr::User is an abstraction to facilitate the creation of signed events. It is not required to use it to create events, but it is recommended.

Here's an example of how to create a signed event without the class Nostr::User:

event = Nostr::Event.new(
  pubkey: keypair.public_key,
  kind: Nostr::EventKind::TEXT_NOTE,
  tags: [],
  content: 'Your feedback is appreciated, now pay $8',
)
event.sign(keypair.private_key)

::: details Click me to view the event

# event.to_h
{
  id: '5feb10973dbcf5f210cfc1f0aa338fee62bed6a29696a67957713599b9baf0eb',
  pubkey: 'b9b9821074d1b60b8fb4a3983632af3ef9669f55b20d515bf982cda5c439ad61',
  created_at: 1699847447,
  kind: 1, # Nostr::EventKind::TEXT_NOTE,
  tags: [],
  content: 'Your feedback is appreciated, now pay $8',
  sig: 'e30f2f08331f224e41a4099d16aefc780bf9f2d1191b71777e1e1789e6b51fdf7bb956f25d4ea9a152d1c66717a9d68c081ce6c89c298c3c5e794914013381ab'
}

:::

And here's how to create it with the class Nostr::User:

user = Nostr::User.new(keypair: keypair)

event = user.create_event(
  kind: Nostr::EventKind::TEXT_NOTE,
  content: 'Your feedback is appreciated, now pay $8'
)