## Stellar: Sign transaction

Asks device to sign given transaction. User is asked to confirm all transaction
details on Trezor.

```javascript
const result = await TrezorConnect.stellarSignTransaction(params);
```

### Params

[\***\*Optional common params\*\***](commonParams.md)

###### [flowtype](../../src/js/types/params.js#L149-L154)

-   `path` — _required_ `string | Array<number>` minimum length is `3`. [read more](path.md)
-   `networkPassphrase` - _required_ `string` network passphrase
-   `transaction` - _required_ `Object` type of [StellarTransaction](../../src/js/types/stellar.js#L129)

### Stellar SDK compatibility

`stellar-sdk` is not a part of `trezor-connect` repository.
To transform `StellarSDK.Transaction` object into `TrezorConnect.StellarTransaction` object copy [this plugin](../../src/js/plugins/stellar/plugin.js) into your project.

```javascript
import StellarSDK from 'stellar-sdk';
import transformTrezorTransaction from '<path-to-plugin>/index.js';

const tx = new StellarSdk.TransactionBuilder(...);
...
tx.build();

const params = transformTrezorTransaction(tx);
const result = TrezorConnect.stellarSignTransaction(params);

if (result.success) {
    tx.addSignature('account-public-key', result.payload.signature);
}
```

### Example

```javascript
TrezorConnect.stellarSignTransaction(
    path: "m/44'/148'/0'",
    networkPassphrase: "Test SDF Network ; September 2015",
    transaction: {
        source: "GAXSFOOGF4ELO5HT5PTN23T5XE6D5QWL3YBHSVQ2HWOFEJNYYMRJENBV",
        fee: 100,
        sequence: 4294967296,
        memo: {
            type: 0,
        },
        operations: [
            {
                type: "payment",
                source: "GAXSFOOGF4ELO5HT5PTN23T5XE6D5QWL3YBHSVQ2HWOFEJNYYMRJENBV",
                destination: "GAXSFOOGF4ELO5HT5PTN23T5XE6D5QWL3YBHSVQ2HWOFEJNYYMRJENBV",
                amount: "10000"
            }
        ]
    }
});
```

### Result

###### [flowtype](../../src/js/types/response.js#L129-L132)

```javascript
{
    success: true,
    payload: {
        publicKey: string,
        signature: string,
    }
}
```

Error

```javascript
{
    success: false,
    payload: {
        error: string // error message
    }
}
```