# `GET /ledger`

Protected. Requires a valid session cookie (`credentials: 'include'`).

Query ledger by manifest article ID or SKU

Alternative query endpoint supporting `?manifestarticle_id=...` or `?sku=...`,
with optional `?transaction_type=...`.


## Query parameters

| Param | Required | Type | Description |
|-------|----------|------|-------------|
| `manifestarticle_id` | no | integer | Query entries for this manifest article line ID |
| `sku` | no | string | Query entries for this article SKU |
| `transaction_type` | no | string | Optional transaction type filter |

## Response `200`

List of ledger entries

```json
{
  "ledger": [
    {
      "id": 1,
      "manifestarticle_id": 1,
      "transaction_type": "…",
      "amount": 1,
      "transaction_text": "…",
      "hash_version": 1,
      "prev_hash": "…",
      "sku": "…",
      "created_at": "2026-08-10T00:00:00.000Z"
    }
  ]
}
```

## Errors

| Status | Description |
|--------|-------------|
| 400 | Missing required query parameter or no company selected — `{"error":"…"}` |

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