<!-- source: https://secondlayer.tools/docs/api-reference#reindex-deployment -->

## Queue a full reindex

`POST /api/subgraphs/{name}/reindex` (self-hosted instances only)

Drops the subgraph's tables and rebuilds them from its start block to the chain tip. Takes no body. A `fromBlock`/`toBlock` is refused with 400 `REINDEX_RANGE_NOT_SUPPORTED` rather than ignored, since a ranged walk would destroy everything outside the range; use `backfill` for a range. Poll the returned `operationId`.

### Path parameters

| Name | Type | Description |
| --- | --- | --- |
| `name` | string, required | Subgraph name, as deployed. Lowercase letters, digits and hyphens. |

### Returns

One `SubgraphOperationQueued` object.

### Responses

- `200` Reindex queued
- `400` The body carried `fromBlock` or `toBlock` (`REINDEX_RANGE_NOT_SUPPORTED`)
- `401` This bind requires the instance token, and it was missing or wrong
- `404` No subgraph by this name on this instance (`SUBGRAPH_NOT_FOUND`)
- `409` A reindex or backfill is already queued or running for this subgraph (`OPERATION_IN_PROGRESS`). Wait for it, or stop it first.
- `415` Missing or non-JSON `Content-Type` (`UNSUPPORTED_MEDIA_TYPE`) — writes must send `Content-Type: application/json`

### Example

```bash
curl -X POST http://127.0.0.1:3800/api/subgraphs/{name}/reindex \
  -H "Authorization: Bearer $INSTANCE_TOKEN"
```

```json
{
  "message": "Backfill queued for subgraph \"sbtc-flows\"",
  "fromBlock": 8950000,
  "toBlock": 9000000,
  "operationId": "9a4e7c21-0b3d-4f6a-8c15-e2d7b9f0a461",
  "status": "queued"
}
```