# ConstructionCombineRequest
ConstructionCombineRequest is the input to the `/construction/combine` endpoint. It contains the unsigned transaction blob returned by `/construction/payloads` and all required signatures to create a network transaction.
## Example Usage
```typescript
import { ConstructionCombineRequest } from "icpmcp-rosetta-api";
let value: ConstructionCombineRequest = {
networkIdentifier: {
blockchain: "bitcoin",
network: "mainnet",
subNetworkIdentifier: {
network: "shard 1",
metadata: {},
},
},
unsignedTransaction: "<value>",
signatures: [
{
signingPayload: {
accountIdentifier: {
address: "0x3a065000ab4183c6bf581dc1e55a605455fc6d61",
subAccount: {
address: "0x6b175474e89094c44da98b954eedeac495271d0f",
},
},
hexBytes: "<value>",
},
publicKey: {
hexBytes: "<value>",
curveType: "pallas",
},
signatureType: "schnorr_poseidon",
hexBytes: "<value>",
},
],
};
```
## Fields
| Field | Type | Required | Description |
| -------------------------------------------------------------------------------------- | -------------------------------------------------------------------------------------- | -------------------------------------------------------------------------------------- | -------------------------------------------------------------------------------------- |
| `networkIdentifier` | [models.NetworkIdentifier](../models/networkidentifier.md) | :heavy_check_mark: | The network_identifier specifies which network a particular object is associated with. |
| `unsignedTransaction` | *string* | :heavy_check_mark: | N/A |
| `signatures` | [models.Signature](../models/signature.md)[] | :heavy_check_mark: | N/A |
