beacon: consensus: implement engine api getBlobs

beacon_node/execution_layer/src/engine_api/http.rs

@@ -3,13 +3,14 @@
 use super::*;
 use crate::auth::Auth;
 use crate::json_structures::*;
+use eth2::lighthouse::Eth1Block;
 use reqwest::header::CONTENT_TYPE;
 use sensitive_url::SensitiveUrl;
 use serde::de::DeserializeOwned;
 use serde_json::json;
 
 use std::time::Duration;
-use types::EthSpec;
+use types::{EthSpec, FullPayload, execution_payload::BlobsBundle};
 
 pub use deposit_log::{DepositLog, Log};
 pub use reqwest::Client;
@@ -34,6 +35,9 @@ pub const ENGINE_NEW_PAYLOAD_TIMEOUT: Duration = Duration::from_secs(8);
 pub const ENGINE_GET_PAYLOAD_V1: &str = "engine_getPayloadV1";
 pub const ENGINE_GET_PAYLOAD_TIMEOUT: Duration = Duration::from_secs(2);
 
+pub const ENGINE_GET_BLOBS_BUNDLE_V1: &str = "engine_getBlobsBundleV1";
+pub const ENGINE_GET_BLOBS_BUNDLE_TIMEOUT: Duration = Duration::from_secs(2);
+
 pub const ENGINE_FORKCHOICE_UPDATED_V1: &str = "engine_forkchoiceUpdatedV1";
 pub const ENGINE_FORKCHOICE_UPDATED_TIMEOUT: Duration = Duration::from_secs(8);
 
@@ -664,6 +668,32 @@ impl HttpJsonRpc {
         Ok(response.into())
     }
 
+    pub async fn get_blobs_bundle_v1<T: EthSpec>(
+        &self,
+        payload_id: PayloadId,
+    ) -> Result<BlobsBundle<T>, Error> {
+        let params = json!([JsonPayloadIdRequest::from(payload_id)]);
+
+        let response: JsonBlobBundlesV1<T> = self
+            .rpc_request(ENGINE_GET_BLOBS_BUNDLE_V1, params, ENGINE_GET_BLOBS_BUNDLE_TIMEOUT)
+            .await?;
+
+        Ok(response.into())
+    }
+
+    pub async fn get_full_payload<T: EthSpec>(
+        &self,
+        payload_id: PayloadId,
+    ) -> Result<FullPayload<T>, Error> {
+        let payload = self.get_payload_v1(payload_id).await;
+        let blobs = self.get_blobs_bundle_v1(payload_id).await;
+
+        Ok(FullPayload{
+            execution_payload: payload?,
+            blobs_bundle: blobs?.into(),
+        })
+    }
+
     pub async fn forkchoice_updated_v1(
         &self,
         forkchoice_state: ForkChoiceState,