> For the complete documentation index, see [llms.txt](https://docs.cheesecakelabs.com/stellar-plus/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.cheesecakelabs.com/stellar-plus/reference/core/pipelines/build-transaction.md).

# Build Transaction

<figure><img src="/files/LjckykHdHUxb6pM6zzkm" alt="" width="563"><figcaption></figcaption></figure>

### Input

```typescript
type BuildTransactionPipelineInput = {
  header: EnvelopeHeader
  horizonHandler: HorizonHandler
  operations: xdr.Operation[]
  networkPassphrase: string
  sorobanData?: string | xdr.SorobanTransactionData
}
```

* **header**: Base parameters to build the envelope. Contains a source account, fee, and timeout information.
* **horizonHandler**: A handler to fetch data from Stellar through a Horizon instance.
* **operations**:  An array of operations to be included in the transaction.
* **networkPassphrase**: The network passphrase for the target network for this transaction.
* **sorobanData**:  Soroban data to be included in the transaction.&#x20;

**Output:**

```typescript
type BuildTransactionPipelineOutput = Transaction
```

The output directly returns a transaction built with the provided parameters.