pathfinder_common/
event.rs

1use std::str::FromStr;
2
3use fake::Dummy;
4use num_bigint::BigUint;
5use pathfinder_crypto::Felt;
6use pathfinder_tagged::Tagged;
7use pathfinder_tagged_debug_derive::TaggedDebug;
8use serde_with::serde_conv;
9
10use crate::{ContractAddress, EventData, EventKey};
11
12#[serde_with::serde_as]
13#[derive(Clone, serde::Deserialize, serde::Serialize, PartialEq, Eq, Dummy, TaggedDebug)]
14#[serde(deny_unknown_fields)]
15pub struct Event {
16    #[serde_as(as = "Vec<EventDataAsDecimalStr>")]
17    pub data: Vec<EventData>,
18    pub from_address: ContractAddress,
19    #[serde_as(as = "Vec<EventKeyAsDecimalStr>")]
20    pub keys: Vec<EventKey>,
21}
22
23serde_conv!(
24    EventDataAsDecimalStr,
25    EventData,
26    |serialize_me: &EventData| starkhash_to_dec_str(&serialize_me.0),
27    |s: &str| starkhash_from_dec_str(s).map(EventData)
28);
29
30serde_conv!(
31    EventKeyAsDecimalStr,
32    EventKey,
33    |serialize_me: &EventKey| starkhash_to_dec_str(&serialize_me.0),
34    |s: &str| starkhash_from_dec_str(s).map(EventKey)
35);
36
37/// A helper conversion function. Only use with __sequencer API related types__.
38fn starkhash_to_dec_str(h: &Felt) -> String {
39    let b = h.to_be_bytes();
40    let b = BigUint::from_bytes_be(&b);
41    b.to_str_radix(10)
42}
43
44/// A helper conversion function. Only use with __sequencer API related types__.
45fn starkhash_from_dec_str(s: &str) -> Result<Felt, anyhow::Error> {
46    match BigUint::from_str(s) {
47        Ok(b) => {
48            let h = Felt::from_be_slice(&b.to_bytes_be())?;
49            Ok(h)
50        }
51        Err(_) => {
52            let h = Felt::from_hex_str(s)?;
53            Ok(h)
54        }
55    }
56}
pathfinder_common/event.rs

pathfinder_common/
event.rs
