reports: add topic for TAP indexer fees (#938)

src/main.rs

@@ -64,12 +64,12 @@ async fn main() {
 
     let signer_address = Wallet::from_bytes(conf.scalar.signer.0.as_ref())
         .expect("failed to prepare receipt wallet");
-    let gateway_id = format!("{:?}", Address::from(signer_address.address().0));
+    let tap_signer = Address::from(signer_address.address().0);
 
     let conf_repr = format!("{conf:?}");
 
     init_logging("graph-gateway", conf.log_json);
-    tracing::info!("gateway ID: {}", gateway_id);
+    tracing::info!("gateway ID: {:?}", tap_signer);
     tracing::debug!(config = %conf_repr);
 
     let http_client = reqwest::Client::builder()
@@ -139,12 +139,15 @@ async fn main() {
         Box::leak(Box::new(Budgeter::new(USD(conf.query_fees_target))));
 
     let reporter = reports::Reporter::create(
-        gateway_id.clone(),
+        tap_signer,
         conf.graph_env_id,
         conf.query_fees_target,
-        "gateway_client_query_results",
-        "gateway_indexer_attempts",
-        "gateway_attestations",
+        reports::Topics {
+            client_request: "gateway_client_query_results",
+            indexer_request: "gateway_indexer_attempts",
+            attestation: "gateway_attestations",
+            indexer_fees: "gateway_indexer_fees",
+        },
         conf.kafka,
     )
     .unwrap();
@@ -229,7 +232,7 @@ async fn main() {
                 // Set up the query tracing span
                 .layer(RequestTracingLayer)
                 // Set the query ID on the request
-                .layer(SetRequestIdLayer::new(gateway_id))
+                .layer(SetRequestIdLayer::new(format!("{:?}", tap_signer)))
                 // Handle legacy in-path auth, and convert it into a header
                 .layer(middleware::from_fn(legacy_auth_adapter))
                 // Require the query to be authorized

src/reports.rs

@@ -35,40 +35,42 @@ pub struct IndexerRequest {
 }
 
 pub struct Reporter {
-    pub gateway_id: String,
+    pub tap_signer: Address,
     pub graph_env: String,
     pub budget: String,
-    pub client_request_topic: &'static str,
-    pub indexer_request_topic: &'static str,
-    pub attestation_topic: &'static str,
+    pub topics: Topics,
     pub write_buf: Vec<u8>,
     pub kafka_producer: rdkafka::producer::ThreadedProducer<
         rdkafka::producer::DefaultProducerContext,
         rdkafka::producer::NoCustomPartitioner,
     >,
 }
 
+pub struct Topics {
+    pub client_request: &'static str,
+    pub indexer_request: &'static str,
+    pub attestation: &'static str,
+    pub indexer_fees: &'static str,
+}
+
 impl Reporter {
+    #[allow(clippy::too_many_arguments)]
     pub fn create(
-        gateway_id: String,
+        tap_signer: Address,
         graph_env: String,
         budget: NotNan<f64>,
-        client_request_topic: &'static str,
-        indexer_request_topic: &'static str,
-        attestation_topic: &'static str,
+        topics: Topics,
         kafka_config: impl Into<rdkafka::ClientConfig>,
     ) -> anyhow::Result<mpsc::UnboundedSender<ClientRequest>> {
         let kafka_producer = kafka_config
             .into()
             .create()
             .context("kafka producer error")?;
         let mut reporter = Self {
-            gateway_id,
+            tap_signer,
             graph_env,
             budget: budget.to_string(),
-            client_request_topic,
-            indexer_request_topic,
-            attestation_topic,
+            topics,
             write_buf: Default::default(),
             kafka_producer,
         };
@@ -119,8 +121,9 @@ impl Reporter {
             .first()
             .map(|i| i.subgraph_chain.as_str())
             .unwrap_or("");
+        let gateway_id = format!("{:?}", self.tap_signer);
         let client_request_payload = json!({
-            "gateway_id": &self.gateway_id,
+            "gateway_id": &gateway_id,
             "query_id": &client_request.id,
             "ray_id": &client_request.id,
             "network_chain": &self.graph_env,
@@ -166,7 +169,7 @@ impl Reporter {
             };
 
             let indexer_request_payload = json!({
-                "gateway_id": &self.gateway_id,
+                "gateway_id": &gateway_id,
                 "query_id": &client_request.id,
                 "ray_id": &client_request.id,
                 "network_chain": &self.graph_env,
@@ -192,17 +195,38 @@ impl Reporter {
             });
             serde_json::to_writer(&mut self.write_buf, &indexer_request_payload).unwrap();
             let record: rdkafka::producer::BaseRecord<(), [u8], ()> =
-                rdkafka::producer::BaseRecord::to(self.indexer_request_topic)
+                rdkafka::producer::BaseRecord::to(self.topics.indexer_request)
                     .payload(&self.write_buf);
             self.kafka_producer
                 .send(record)
                 .map_err(|(err, _)| err)
                 .context(anyhow!(
                     "failed to send to topic {}",
-                    self.indexer_request_topic
+                    self.topics.indexer_request
                 ))?;
             self.write_buf.clear();
 
+            if matches!(&indexer_request.receipt, Receipt::TAP(_)) {
+                IndexerFeesProtobuf {
+                    signer: self.tap_signer.to_vec(),
+                    receiver: indexer_request.indexer.to_vec(),
+                    fee_grt: indexer_request.receipt.grt_value() as f64 * 1e-18,
+                }
+                .encode(&mut self.write_buf)
+                .unwrap();
+                let record: rdkafka::producer::BaseRecord<(), [u8], ()> =
+                    rdkafka::producer::BaseRecord::to(self.topics.indexer_fees)
+                        .payload(&self.write_buf);
+                self.kafka_producer
+                    .send(record)
+                    .map_err(|(err, _)| err)
+                    .context(anyhow!(
+                        "failed to send to topic {}",
+                        self.topics.indexer_fees
+                    ))?;
+                self.write_buf.clear();
+            }
+
             if let Some((original_response, attestation)) = indexer_request
                 .result
                 .ok()
@@ -225,28 +249,28 @@ impl Reporter {
                 .encode(&mut self.write_buf)
                 .unwrap();
                 let record: rdkafka::producer::BaseRecord<(), [u8], ()> =
-                    rdkafka::producer::BaseRecord::to(self.attestation_topic)
+                    rdkafka::producer::BaseRecord::to(self.topics.attestation)
                         .payload(&self.write_buf);
                 self.kafka_producer
                     .send(record)
                     .map_err(|(err, _)| err)
                     .context(anyhow!(
                         "failed to send to topic {}",
-                        self.attestation_topic
+                        self.topics.attestation
                     ))?;
                 self.write_buf.clear();
             }
         }
 
         serde_json::to_writer(&mut self.write_buf, &client_request_payload).unwrap();
         let record: rdkafka::producer::BaseRecord<(), [u8], ()> =
-            rdkafka::producer::BaseRecord::to(self.client_request_topic).payload(&self.write_buf);
+            rdkafka::producer::BaseRecord::to(self.topics.client_request).payload(&self.write_buf);
         self.kafka_producer
             .send(record)
             .map_err(|(err, _)| err)
             .context(anyhow!(
                 "failed to send to topic {}",
-                self.client_request_topic
+                self.topics.client_request
             ))?;
         self.write_buf.clear();
 
@@ -276,3 +300,15 @@ pub struct AttestationProtobuf {
     #[prost(bytes, tag = "7")]
     signature: Vec<u8>,
 }
+
+#[derive(Clone, PartialEq, prost::Message)]
+pub struct IndexerFeesProtobuf {
+    /// 20 bytes (address)
+    #[prost(bytes, tag = "1")]
+    signer: Vec<u8>,
+    /// 20 bytes (address)
+    #[prost(bytes, tag = "2")]
+    receiver: Vec<u8>,
+    #[prost(double, tag = "3")]
+    fee_grt: f64,
+}