notecrumbs

a nostr opengraph server build on nostrdb and egui
git clone git://jb55.com/notecrumbs
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nip19.rs (1219B)

      1 use crate::error::Error;
      2 use nostr_sdk::nips::nip19::Nip19;
      3 use nostr_sdk::prelude::*;
      4 
      5 pub fn to_filters(nip19: &Nip19) -> Result<Vec<Filter>, Error> {
      6     match nip19 {
      7         Nip19::Event(ev) => {
      8             let mut filters = vec![Filter::new().id(ev.event_id).limit(1)];
      9             if let Some(author) = ev.author {
     10                 filters.push(Filter::new().author(author).kind(Kind::Metadata).limit(1))
     11             }
     12             Ok(filters)
     13         }
     14         Nip19::EventId(evid) => Ok(vec![Filter::new().id(*evid).limit(1)]),
     15         Nip19::Profile(prof) => Ok(vec![Filter::new()
     16             .author(prof.public_key)
     17             .kind(Kind::Metadata)
     18             .limit(1)]),
     19         Nip19::Pubkey(pk) => Ok(vec![Filter::new()
     20             .author(*pk)
     21             .kind(Kind::Metadata)
     22             .limit(1)]),
     23         Nip19::Secret(_sec) => Err(Error::InvalidNip19),
     24         Nip19::Coordinate(_coord) => Err(Error::InvalidNip19),
     25     }
     26 }
     27 
     28 pub fn to_relays(nip19: &Nip19) -> Vec<String> {
     29     let mut relays: Vec<String> = vec![];
     30     match nip19 {
     31         Nip19::Event(ev) => relays.extend(ev.relays.clone()),
     32         Nip19::Profile(p) => relays.extend(p.relays.clone()),
     33         _ => (),
     34     }
     35     relays
     36 }