diff --git a/runner/src/indexer/indexer.ts b/runner/src/indexer/indexer.ts
index f7b1a73ad..7eb8e38b4 100644
--- a/runner/src/indexer/indexer.ts
+++ b/runner/src/indexer/indexer.ts
@@ -194,16 +194,7 @@ export default class Indexer {
         } satisfies Message);
       }
     }
-    const blockPromise = this.deps.s3StreamerMessageFetcher.fetchBlockPromise(blockHeight);
-    const shardsPromises = await this.deps.s3StreamerMessageFetcher.fetchShardsPromises(blockHeight, 4);
-
-    const results = await Promise.all([blockPromise, ...shardsPromises]);
-    const block = results.shift();
-    const shards = results;
-    return {
-      block,
-      shards,
-    };
+    return await this.deps.s3StreamerMessageFetcher.fetchStreamerMessage(blockHeight);
   }
 
   transformIndexerFunction (indexerFunction: string): string {
diff --git a/runner/src/stream-handler/worker.ts b/runner/src/stream-handler/worker.ts
index bca5e4fcc..56d988958 100644
--- a/runner/src/stream-handler/worker.ts
+++ b/runner/src/stream-handler/worker.ts
@@ -203,22 +203,9 @@ function fetchAndQueue (queue: Array<Promise<QueueMessage>>, blockHeight: number
 }
 
 async function transformStreamerMessageToQueueMessage (blockHeight: number, streamId: string): Promise<QueueMessage> {
-  const streamerMessage = await fetchStreamerMessage(blockHeight);
+  const streamerMessage = await s3StreamerMessageFetcher.fetchStreamerMessage(blockHeight);
   return {
     streamerMessage,
     streamId
   };
 }
-
-async function fetchStreamerMessage (blockHeight: number): Promise<StreamerMessage> {
-  const blockPromise = s3StreamerMessageFetcher.fetchBlockPromise(blockHeight);
-  const shardsPromises = await s3StreamerMessageFetcher.fetchShardsPromises(blockHeight, 4);
-
-  const results = await Promise.all([blockPromise, ...shardsPromises]);
-  const block = results.shift();
-  const shards = results;
-  return {
-    block,
-    shards,
-  };
-}
diff --git a/runner/src/streamer-message-fetcher/s3-streamer-fetcher.ts b/runner/src/streamer-message-fetcher/s3-streamer-fetcher.ts
index 16b421a22..920b86778 100644
--- a/runner/src/streamer-message-fetcher/s3-streamer-fetcher.ts
+++ b/runner/src/streamer-message-fetcher/s3-streamer-fetcher.ts
@@ -1,4 +1,5 @@
 import { GetObjectCommand, S3Client } from '@aws-sdk/client-s3';
+import { type StreamerMessage } from '@near-lake/primitives';
 
 export default class S3StreamerMessageFetcher {
   private readonly s3Client: S3Client;
@@ -64,4 +65,17 @@ export default class S3StreamerMessageFetcher {
     }
     return value;
   }
+
+  async fetchStreamerMessage (blockHeight: number): Promise<StreamerMessage> {
+    const blockPromise = this.fetchBlockPromise(blockHeight);
+    const shardsPromises = await this.fetchShardsPromises(blockHeight, 4);
+
+    const results = await Promise.all([blockPromise, ...shardsPromises]);
+    const block = results.shift();
+    const shards = results;
+    return {
+      block,
+      shards,
+    };
+  }
 }