> ## Documentation Index
> Fetch the complete documentation index at: https://cobo.com/developers/llms.txt
> Use this file to discover all available pages before exploring further.

# Babylon Drop Staking

> This endpoint specify the pre-signed staking transaction, create a new transaction to drop the corresponding transaction, accepting parameters such as `request_id`, `related_request_id`, `fee_rate`, and `max_staking_fee`.

#### Request

<ParamField body="request_id" type="String" required>transaction ID (unique identifier of a transaction request, which must correspond to a client's transaction; UUID should be used and the length should be equal to or less than 120 characters)</ParamField>
<ParamField body="related_request_id" type="String" required>request ID of the transaction to be dropped</ParamField>
<Tip>Only transactions with the status 100 and 200 are eligible to be dropped.</Tip>
<ParamField body="fee_rate" type="Float" required>transaction fees per byte</ParamField>
<ParamField body="max_staking_fee" type="Int">maximum fee for constructing the transaction. If the actual fee exceeds this limit, the creation will fail. The default is None.</ParamField>

#### Response

<ResponseField name="success" type="bool">request successful or failed</ResponseField>
<ResponseField name="result" type="String">""</ResponseField>

<RequestExample>
  ```python Python theme={null}
  request(
      "POST",
      "/v1/custody/mpc/babylon/drop_staking/",
      {
          "request_id": "1717059604245",
          "related_request_id": "1717059601673",
          "fee_rate": 9.5,
          "max_staking_fee": 2000
      },
      api_key, api_secret, host
  )
  ```

  ```javascript JavaScript theme={null}
  coboFetch('POST', '/v1/custody/mpc/babylon/drop_staking/', {
      "request_id": "1717059604245",
      "related_request_id": "1717059601673",
      "fee_rate": 9.5,
      "max_staking_fee": 2000
  }, api_key, api_secret, host)
      .then(res => {
          res.json().then((data)=>{
              console.log(JSON.stringify(data, null, 4));
          })
      }).catch(err => {
          console.log(err)
      });
  ```

  ```go Go theme={null}
  Request("POST", "/v1/custody/mpc/babylon/drop_staking/", map[string]string{
      "request_id": "1717059604245",
      "related_request_id": "1717059601673",
      "fee_rate": 9.5,
      "max_staking_fee": 2000
  })
  ```
</RequestExample>

<ResponseExample>
  ```json theme={null}
  {
    "success": true,
    "result": ""
  }

  ```
</ResponseExample>