# MempoolTransactionRequest
A MempoolTransactionRequest is utilized to retrieve a transaction from the mempool.
## Example Usage
```typescript
import { MempoolTransactionRequest } from "icpmcp-rosetta-api";
let value: MempoolTransactionRequest = {
networkIdentifier: {
blockchain: "bitcoin",
network: "mainnet",
subNetworkIdentifier: {
network: "shard 1",
metadata: {},
},
},
transactionIdentifier: {
hash: "0x2f23fd8cca835af21f3ac375bac601f97ead75f2e79143bdf71fe2c4be043e8f",
},
};
```
## 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. |
| `transactionIdentifier` | [models.TransactionIdentifier](../models/transactionidentifier.md) | :heavy_check_mark: | The transaction_identifier uniquely identifies a transaction in a particular network and block or in the mempool. |
