Skip to content

feat: decode contract event logs using verified ABIs #80

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Draft
pthmas wants to merge 1 commit into
base: main
Choose a base branch
from
Draft

feat: decode contract event logs using verified ABIs #80

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
4 changes: 4 additions & 0 deletions backend/crates/atlas-common/src/types.rs
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -170,6 +170,10 @@ pub struct EventLog {
pub data: Vec<u8>,
pub block_number: i64,
pub decoded: Option<serde_json::Value>,
pub decode_status: String,
pub decoded_at: Option<DateTime<Utc>>,
pub decode_attempted_at: Option<DateTime<Utc>>,
pub decode_source: Option<String>,
}

/// Known event signature for decoding
Expand Down
3 changes: 3 additions & 0 deletions backend/crates/atlas-server/src/api/handlers/contracts.rs
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -20,6 +20,7 @@ use tokio::fs;

use crate::api::error::ApiResult;
use crate::api::AppState;
use crate::event_log_decode::enqueue_jobs_for_verified_contract;
use atlas_common::{AtlasError, FullContractAbi};

// ── Request / Response types ──────────────────────────────────────────────────
Expand Down Expand Up @@ -282,6 +283,8 @@ pub async fn verify_contract(
return Err(AtlasError::Verification(format!("{address} is already verified")).into());
}

enqueue_jobs_for_verified_contract(&state.pool, &address).await?;

Ok((
StatusCode::OK,
Json(VerifyResponse {
Expand Down
87 changes: 13 additions & 74 deletions backend/crates/atlas-server/src/api/handlers/logs.rs
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -7,6 +7,7 @@ use std::sync::Arc;

use crate::api::error::ApiResult;
use crate::api::AppState;
use crate::event_log_decode::EventLogApiResponse;
use atlas_common::{EventLog, PaginatedResponse, Pagination};

/// Pagination for transaction log endpoints.
Expand Down Expand Up @@ -61,7 +62,7 @@ pub async fn get_transaction_logs(
State(state): State<Arc<AppState>>,
Path(hash): Path<String>,
Query(query): Query<TransactionLogsQuery>,
) -> ApiResult<Json<PaginatedResponse<EventLog>>> {
) -> ApiResult<Json<PaginatedResponse<EventLogApiResponse>>> {
let hash = normalize_hash(&hash);

let total: (i64,) = sqlx::query_as("SELECT COUNT(*) FROM event_logs WHERE tx_hash = $1")
Expand All @@ -70,7 +71,8 @@ pub async fn get_transaction_logs(
.await?;

let logs: Vec<EventLog> = sqlx::query_as(
"SELECT id, tx_hash, log_index, address, topic0, topic1, topic2, topic3, data, block_number, decoded
"SELECT id, tx_hash, log_index, address, topic0, topic1, topic2, topic3, data, block_number,
decoded, decode_status, decoded_at, decode_attempted_at, decode_source
FROM event_logs
WHERE tx_hash = $1
ORDER BY log_index ASC
Expand All @@ -83,7 +85,7 @@ pub async fn get_transaction_logs(
.await?;

Ok(Json(PaginatedResponse::new(
logs,
logs.iter().map(EventLogApiResponse::from).collect(),
query.page,
query.clamped_limit(),
total.0,
Expand All @@ -95,7 +97,7 @@ pub async fn get_address_logs(
State(state): State<Arc<AppState>>,
Path(address): Path<String>,
Query(query): Query<LogsQuery>,
) -> ApiResult<Json<PaginatedResponse<EventLog>>> {
) -> ApiResult<Json<PaginatedResponse<EventLogApiResponse>>> {
let address = normalize_address(&address);

let (total, logs) = if let Some(topic0) = &query.topic0 {
Expand All @@ -109,7 +111,8 @@ pub async fn get_address_logs(
.await?;

let logs: Vec<EventLog> = sqlx::query_as(
"SELECT id, tx_hash, log_index, address, topic0, topic1, topic2, topic3, data, block_number, decoded
"SELECT id, tx_hash, log_index, address, topic0, topic1, topic2, topic3, data, block_number,
decoded, decode_status, decoded_at, decode_attempted_at, decode_source
FROM event_logs
WHERE address = $1 AND topic0 = $2
ORDER BY block_number DESC, log_index DESC
Expand All @@ -130,7 +133,8 @@ pub async fn get_address_logs(
.await?;

let logs: Vec<EventLog> = sqlx::query_as(
"SELECT id, tx_hash, log_index, address, topic0, topic1, topic2, topic3, data, block_number, decoded
"SELECT id, tx_hash, log_index, address, topic0, topic1, topic2, topic3, data, block_number,
decoded, decode_status, decoded_at, decode_attempted_at, decode_source
FROM event_logs
WHERE address = $1
ORDER BY block_number DESC, log_index DESC
Expand All @@ -146,85 +150,20 @@ pub async fn get_address_logs(
};

Ok(Json(PaginatedResponse::new(
logs,
logs.iter().map(EventLogApiResponse::from).collect(),
query.pagination.page,
query.clamped_limit(),
total,
)))
}

/// Enriched log with event name
#[derive(Debug, Clone, serde::Serialize)]
pub struct EnrichedEventLog {
#[serde(flatten)]
pub log: EventLog,
pub event_name: Option<String>,
pub event_signature: Option<String>,
}

/// GET /api/transactions/:hash/logs/decoded - Get decoded logs for a transaction
pub async fn get_transaction_logs_decoded(
State(state): State<Arc<AppState>>,
Path(hash): Path<String>,
Query(query): Query<TransactionLogsQuery>,
) -> ApiResult<Json<PaginatedResponse<EnrichedEventLog>>> {
let hash = normalize_hash(&hash);

let total: (i64,) = sqlx::query_as("SELECT COUNT(*) FROM event_logs WHERE tx_hash = $1")
.bind(&hash)
.fetch_one(&state.pool)
.await?;

let logs: Vec<EventLog> = sqlx::query_as(
"SELECT id, tx_hash, log_index, address, topic0, topic1, topic2, topic3, data, block_number, decoded
FROM event_logs
WHERE tx_hash = $1
ORDER BY log_index ASC
LIMIT $2 OFFSET $3",
)
.bind(&hash)
.bind(query.limit())
.bind(query.offset())
.fetch_all(&state.pool)
.await?;

// Collect unique topic0 values for signature lookup
let topic0s: Vec<String> = logs.iter().map(|l| l.topic0.clone()).collect();

// Fetch known event signatures
let signatures: Vec<(String, String, String)> = sqlx::query_as(
"SELECT signature, name, full_signature FROM event_signatures WHERE signature = ANY($1)",
)
.bind(&topic0s)
.fetch_all(&state.pool)
.await?;

let sig_map: std::collections::HashMap<String, (String, String)> = signatures
.into_iter()
.map(|(sig, name, full)| (sig.to_lowercase(), (name, full)))
.collect();

let enriched: Vec<EnrichedEventLog> = logs
.into_iter()
.map(|log| {
let (event_name, event_signature) = sig_map
.get(&log.topic0.to_lowercase())
.map(|(n, s)| (Some(n.clone()), Some(s.clone())))
.unwrap_or((None, None));
EnrichedEventLog {
log,
event_name,
event_signature,
}
})
.collect();

Ok(Json(PaginatedResponse::new(
enriched,
query.page,
query.clamped_limit(),
total.0,
)))
) -> ApiResult<Json<PaginatedResponse<EventLogApiResponse>>> {
get_transaction_logs(State(state), Path(hash), Query(query)).await
}

fn default_page() -> u32 {
Expand Down
Loading