curl --request POST \
  --url https://api.entendre.finance/v1/journal-entries/{journal_id}/reverse \
  --header 'Idempotency-Key: <idempotency-key>' \
  --header 'X-API-Key: <api-key>'

const options = {
  method: 'POST',
  headers: {'Idempotency-Key': '<idempotency-key>', 'X-API-Key': '<api-key>'}
};

fetch('https://api.entendre.finance/v1/journal-entries/{journal_id}/reverse', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

import requests

url = "https://api.entendre.finance/v1/journal-entries/{journal_id}/reverse"

headers = {
    "Idempotency-Key": "<idempotency-key>",
    "X-API-Key": "<api-key>"
}

response = requests.post(url, headers=headers)

print(response.text)

{
  "data": {
    "id": "je_507f1f77bcf86cd799439011",
    "organization_id": "org_507f1f77bcf86cd799439011",
    "sequence_number": "JE-42",
    "status": "draft",
    "originated_by": "user",
    "accounting_date": "2026-08-31T12:00:00Z",
    "posted_at": null,
    "memo": "Record August opening balance",
    "source_type": "MANUAL",
    "sync_date": null,
    "last_synced_at": null,
    "last_unsynced_at": null,
    "legal_entity_id": "le_507f1f77bcf86cd799439011",
    "transaction_id": null,
    "transaction_sequence_number": null,
    "accounting_period_id": null,
    "classification": null,
    "tag_ids": [],
    "reversal_chain": {
      "previous_entry_id": null,
      "next_entry_id": null
    },
    "period_auto_reassigned": false,
    "intended_accounting_date": null,
    "legal_entity_auto_assigned": false,
    "lines": [
      {
        "id": "jel_507f1f77bcf86cd799439011",
        "ledger_account_id": "lac_507f1f77bcf86cd799439011",
        "legal_entity_id": "le_507f1f77bcf86cd799439011",
        "credit_or_debit": "DEBIT",
        "amount": "100.00",
        "currency": "USD",
        "memo": null,
        "tag_ids": []
      },
      {
        "id": "jel_507f1f77bcf86cd799439012",
        "ledger_account_id": "lac_507f1f77bcf86cd799439012",
        "legal_entity_id": "le_507f1f77bcf86cd799439011",
        "credit_or_debit": "CREDIT",
        "amount": "100.00",
        "currency": "USD",
        "memo": null,
        "tag_ids": []
      }
    ],
    "is_sync": false,
    "latest_gl_sync_attempt": null,
    "created_at": "2026-08-31T12:00:00Z",
    "updated_at": "2026-08-31T12:00:00Z"
  }
}

{
  "error": {
    "code": "VALIDATION_ERROR",
    "message": "Invalid path, query or request body.",
    "request_id": "req_example"
  }
}

{
  "error": {
    "code": "UNAUTHORIZED",
    "message": "Authentication is required.",
    "request_id": "req_example"
  }
}

{
  "error": {
    "code": "FORBIDDEN",
    "message": "Insufficient access to organization",
    "request_id": "req_example"
  }
}

{
  "error": {
    "code": "RESOURCE_NOT_FOUND",
    "message": "Resource not found",
    "request_id": "req_example"
  }
}

{
  "error": {
    "code": "CONFLICT",
    "message": "The resource state does not allow this operation.",
    "request_id": "req_example"
  }
}

{
  "error": {
    "code": "RATE_LIMITED",
    "message": "Rate limit exceeded. Retry after 30s.",
    "request_id": "req_example"
  }
}

{
  "error": {
    "code": "INTERNAL_ERROR",
    "message": "Internal server error",
    "request_id": "req_example"
  }
}

{
  "error": {
    "code": "SERVICE_UNAVAILABLE",
    "message": "Service unavailable.",
    "request_id": "req_example"
  }
}