---
title: "Build transaction to extend existing position"
method: POST
path: "/v2/staking/{master_address}/positions/{address}/{id}"
tags: ["Staking"]
---

# Build transaction to extend existing position

`POST /v2/staking/{master_address}/positions/{address}/{id}`

## Path parameters

- `master_address` string, required
- `address` string, required
- `id` integer, required

## Headers

- `x-verify` string, required

## Request body

- ApiExtendStakeRequest
  - `period_id` integer, required — Lock identifier.

## Response `200`

Boc to extend position with queryId to observe

- ApiTransactionResponse
  - `query_id` integer, required
  - `message` ApiTransactionBoc, required
    - `payload_cell` string, base64, required — Base64-encoded cell. Treated as a payload field in TonConnect transaction.
    - `address` string, required
    - `value` string, int128, required — Amount of nanotons to be sent. Can be passed to TonConnect transaction.
    - `state_init` string, base64 — Base64-encoded cell. Treated as a stateInit field in TonConnect transaction.
    - `extra` ApiExtraCurrency[]
      - `id` integer, required
      - `amount` string, int128, required

## Other responses

- `default` — Some error during request processing

---

[API](https://skmtc.net/swap/apis/swap-coffee-api.md) · [All operations](https://skmtc.net/swap/apis/swap-coffee-api/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/swap/swap-coffee-api/versions/fd1067547679/schema)