> For the complete documentation index, see [llms.txt](https://sdk.chorus.one/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://sdk.chorus.one/api-reference/signers/signer_fireblocks_src.fireblockssigner.md). # FireblocksSigner ## Table of contents ### Constructors * [constructor](#constructor) ### Methods * [init](#init) * [sign](#sign) * [contractCall](#contractcall) * [getPublicKey](#getpublickey) ## Constructors ### constructor • **new FireblocksSigner**(`params`): [`FireblocksSigner`](/api-reference/signers/signer_fireblocks_src.fireblockssigner.md) Constructs a new FireblocksSigner. #### Parameters | Name | Type | Description | | ---------------------------- | --------------------- | ----------------------------------------------------------------------------------------------------------------------- | | `params` | `Object` | The parameters required to initialize the FireblocksSigner | | `params.apiSecretKey` | `string` | Fireblocks API Secret key | | `params.apiKey` | `string` | Fireblocks API Key | | `params.vaultName` | `string` | The name of the Fireblocks vault where the assets are stored | | `params.assetId` | `string` | The identifier for the asset you intend to manage | | `params.addressDerivationFn` | `AddressDerivationFn` | A function that derives the address from the public key | | `params.timeout?` | `number` | (Optional) The maximum time (in ms) to wait for the Fireblocks API sign request to complete | | `params.pollInterval?` | `number` | (Optional) The interval (in ms) at which the signer polls the Fireblocks API to check if the sign request has completed | | `params.apiUrl?` | `string` | (Optional) The URL of the Fireblocks API, defaults to `https://api.fireblocks.io` | | `params.logger?` | `Logger` | (Optional) A logger to use for logging messages, i.e `console` | #### Returns [`FireblocksSigner`](/api-reference/signers/signer_fireblocks_src.fireblockssigner.md) A new instance of FireblocksSigner. ## Methods ### init ▸ **init**(): `Promise`<`void`> Initializes the signer, performing any necessary setup or configuration. #### Returns `Promise`<`void`> A promise that resolves once the initialization is complete. *** ### sign ▸ **sign**(`signerAddress`, `signerData`, `options?`): `Promise`<{ `sig`: `Signature` ; `pk`: `Uint8Array` }> Signs the provided data using the private key associated with the signer's address. #### Parameters | Name | Type | Description | | --------------- | ------------ | ---------------------------------------------------------------- | | `signerAddress` | `string` | The address of the signer | | `signerData` | `SignerData` | The data to be signed, which can be a raw message or custom data | | `options?` | `Object` | Additional options | | `options.note?` | `string` | An optional note to include with the transaction | #### Returns `Promise`<{ `sig`: `Signature` ; `pk`: `Uint8Array` }> A promise that resolves to an object containing the signature and public key. *** ### contractCall ▸ **contractCall**(`params`): `Promise`<`FireblocksTxStatus`> Signs an Ethereum contract call transaction using Fireblocks. #### Parameters | Name | Type | Description | | ----------------------------- | --------------- | ---------------------------------------------- | | `params` | `Object` | Parameters for the contract call | | `params.to` | \`0x${string}\` | The destination contract address | | `params.value?` | `bigint` | The amount to send in wei (optional) | | `params.data` | \`0x${string}\` | The contract call data | | `params.gas` | `bigint` | - | | `params.maxFeePerGas` | `bigint` | Maximum fee per gas in wei (optional) | | `params.maxPriorityFeePerGas` | `bigint` | Maximum priority fee per gas in wei (optional) | | `params.gasPrice` | `bigint` | - | | `params.note?` | `string` | Optional note for the transaction | #### Returns `Promise`<`FireblocksTxStatus`> A promise that resolves to the transaction response from Fireblocks. *** ### getPublicKey ▸ **getPublicKey**(`address`): `Promise`<`Uint8Array`> Retrieves the public key associated with the signer's address. #### Parameters | Name | Type | Description | | --------- | -------- | ------------------------- | | `address` | `string` | The address of the signer | #### Returns `Promise`<`Uint8Array`> A promise that resolves to a Uint8Array representing the public key. --- # Agent Instructions This documentation is published with GitBook. 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