---
title: "Execute Blocking Snapshot"
method: POST
path: "/sources/execute_blocking_snapshot"
tags: ["Sources"]
---

# Execute Blocking Snapshot

`POST /sources/execute_blocking_snapshot`

Execute a blocking snapshot for the specified source.

Blocking snapshots pause streaming during the snapshot operation and use
Debezium's initial snapshot process. They are useful for:
- Snapshotting keyless tables (which incremental snapshots cannot handle)
- Snapshotting large tables faster than incremental snapshots

Warning: Streaming will be paused during the snapshot operation.
Note: additional_conditions filters are not supported for blocking snapshots.

## Request body

- ExecuteBlockingSnapshotBody — Execute Blocking Snapshot Body. Blocking snapshots pause streaming during the snapshot operation and use Debezium's initial snapshot process. They are useful for: - Snapshotting keyless tables (which incremental snapshots cannot handle) - Snapshotting large tables faster than incremental snapshots - Adding new tables while the connector is running Note: additional_conditions filters are not supported for blocking snapshots.
  - `source_id` string, required
  - `topic_names` string[], nullable

## Response `200`

Successful Response

- unknown

## Other responses

- `422` — Validation Error

---

[API](https://skmtc.net/streamkap/apis/streamkap-rest-api.md) · [All operations](https://skmtc.net/streamkap/apis/streamkap-rest-api/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/streamkap/streamkap-rest-api/revisions/8aea6143d003/schema)