mirror of
https://github.com/nostr-protocol/nips.git
synced 2024-12-13 02:46:24 +00:00
154 lines
4.4 KiB
Markdown
154 lines
4.4 KiB
Markdown
|
|
NIP-28
|
|
======
|
|
|
|
Public Chat
|
|
-----------
|
|
|
|
`draft` `optional`
|
|
|
|
This NIP defines new event kinds for public chat channels, channel messages, and basic client-side moderation.
|
|
|
|
It reserves five event kinds (40-44) for immediate use:
|
|
|
|
- `40 - channel create`
|
|
- `41 - channel metadata`
|
|
- `42 - channel message`
|
|
- `43 - hide message`
|
|
- `44 - mute user`
|
|
|
|
Client-centric moderation gives client developers discretion over what types of content they want included in their apps, while imposing no additional requirements on relays.
|
|
|
|
## Kind 40: Create channel
|
|
|
|
Create a public chat channel.
|
|
|
|
In the channel creation `content` field, Client SHOULD include basic channel metadata (`name`, `about`, `picture` and `relays` as specified in kind 41).
|
|
|
|
```jsonc
|
|
{
|
|
"content": "{\"name\": \"Demo Channel\", \"about\": \"A test channel.\", \"picture\": \"https://placekitten.com/200/200\", \"relays\": [\"wss://nos.lol\", \"wss://nostr.mom\"]}",
|
|
// other fields...
|
|
}
|
|
```
|
|
|
|
|
|
## Kind 41: Set channel metadata
|
|
|
|
Update a channel's public metadata.
|
|
|
|
Kind 41 is used to update the metadata without modifying the event id for the channel. Only the most recent kind 41 per `e` tag value MAY be available.
|
|
|
|
Clients SHOULD ignore kind 41s from pubkeys other than the kind 40 pubkey.
|
|
|
|
Clients SHOULD support basic metadata fields:
|
|
|
|
- `name` - string - Channel name
|
|
- `about` - string - Channel description
|
|
- `picture` - string - URL of channel picture
|
|
- `relays` - array - List of relays to download and broadcast events to
|
|
|
|
Clients MAY add additional metadata fields.
|
|
|
|
Clients SHOULD use [NIP-10](10.md) marked "e" tags to recommend a relay.
|
|
|
|
```jsonc
|
|
{
|
|
"content": "{\"name\": \"Updated Demo Channel\", \"about\": \"Updating a test channel.\", \"picture\": \"https://placekitten.com/201/201\", \"relays\": [\"wss://nos.lol\", \"wss://nostr.mom\"]}",
|
|
"tags": [["e", <channel_create_event_id>, <relay-url>]],
|
|
// other fields...
|
|
}
|
|
```
|
|
|
|
|
|
## Kind 42: Create channel message
|
|
|
|
Send a text message to a channel.
|
|
|
|
Clients SHOULD use [NIP-10](10.md) marked "e" tags to recommend a relay and specify whether it is a reply or root message.
|
|
|
|
Clients SHOULD append [NIP-10](10.md) "p" tags to replies.
|
|
|
|
Root message:
|
|
|
|
```jsonc
|
|
{
|
|
"content": <string>,
|
|
"tags": [["e", <kind_40_event_id>, <relay-url>, "root"]],
|
|
// other fields...
|
|
}
|
|
```
|
|
|
|
Reply to another message:
|
|
|
|
```jsonc
|
|
{
|
|
"content": <string>,
|
|
"tags": [
|
|
["e", <kind_40_event_id>, <relay-url>, "root"],
|
|
["e", <kind_42_event_id>, <relay-url>, "reply"],
|
|
["p", <pubkey>, <relay-url>],
|
|
// rest of tags...
|
|
],
|
|
// other fields...
|
|
}
|
|
```
|
|
|
|
|
|
## Kind 43: Hide message
|
|
|
|
User no longer wants to see a certain message.
|
|
|
|
The `content` may optionally include metadata such as a `reason`.
|
|
|
|
Clients SHOULD hide event 42s shown to a given user, if there is an event 43 from that user matching the event 42 `id`.
|
|
|
|
Clients MAY hide event 42s for other users other than the user who sent the event 43.
|
|
|
|
(For example, if three users 'hide' an event giving a reason that includes the word 'pornography', a Nostr client that is an iOS app may choose to hide that message for all iOS clients.)
|
|
|
|
```jsonc
|
|
{
|
|
"content": "{\"reason\": \"Dick pic\"}",
|
|
"tags": [["e", <kind_42_event_id>]],
|
|
// other fields...
|
|
}
|
|
```
|
|
|
|
## Kind 44: Mute user
|
|
|
|
User no longer wants to see messages from another user.
|
|
|
|
The `content` may optionally include metadata such as a `reason`.
|
|
|
|
Clients SHOULD hide event 42s shown to a given user, if there is an event 44 from that user matching the event 42 `pubkey`.
|
|
|
|
Clients MAY hide event 42s for users other than the user who sent the event 44.
|
|
|
|
```jsonc
|
|
{
|
|
"content": "{\"reason\": \"Posting dick pics\"}",
|
|
"tags": [["p", <pubkey>]],
|
|
// other fields...
|
|
}
|
|
```
|
|
|
|
## Relay recommendations
|
|
|
|
Clients SHOULD use the relay URLs of the metadata events.
|
|
|
|
Clients MAY use any relay URL. For example, if a relay hosting the original kind 40 event for a channel goes offline, clients could instead fetch channel data from a backup relay, or a relay that clients trust more than the original relay.
|
|
|
|
Motivation
|
|
----------
|
|
If we're solving censorship-resistant communication for social media, we may as well solve it also for Telegram-style messaging.
|
|
|
|
We can bring the global conversation out from walled gardens into a true public square open to all.
|
|
|
|
|
|
Additional info
|
|
---------------
|
|
|
|
- [Chat demo PR with fiatjaf+jb55 comments](https://github.com/ArcadeCity/arcade/pull/28)
|
|
- [Conversation about NIP16](https://t.me/nostr_protocol/29566)
|