Call a write function on a deployed contract

Call a write function on a deployed contract by blockchain native asset id and contract address. This creates an onchain transaction, thus it is an async operation. It returns a transaction id that can be polled for status check

POST /contract_interactions/base_asset_id/{baseAssetId}/contract_address/{contractAddress}/functions/write

TypeScript

TypeScript

const response: Promise<FireblocksResponse<WriteCallFunctionResponseDto>> = fireblocks.contractInteractions.writeCallFunction(contractInteractionsApiWriteCallFunctionRequest);

202

{
  "txId": "<string>"
}

Headers

Idempotency-Key · string

A unique identifier for the request. If the request is sent multiple times with the same idempotency key, the server will return the same response as the first request. The idempotency key is valid for 24 hours.

Path Parameters

contractAddress · string · required

The contract's onchain address

baseAssetId · string · required

Body

application/json

vaultAccountId · string · required

The vault account id this contract was deploy from

Example:

"0"

abiFunction · object · required

Option 1

Option 2

Show child attributes

amount · string

Amount in base asset. Being used in payable functions

Example:

"12.345"

feeLevel · enum<string>

Fee level for the write function transaction. interchangeable with the 'fee' field

Available options: LOW, MEDIUM, HIGH

Example:

"MEDIUM"

fee · string

Max fee amount for the write function transaction. interchangeable with the 'feeLevel' field

Example:

"2000"

note · string

Custom note, not sent to the blockchain, that describes the transaction at your Fireblocks workspace

useGasless · boolean

Indicates whether the token should be created in a gasless manner, utilizing the ERC-2771 standard. When set to true, the transaction will be relayed by a designated relayer. The workspace must be configured to use Fireblocks gasless relay.

Example:

false

externalId · string

External id that can be used to identify the transaction in your system. The unique identifier of the transaction outside of Fireblocks with max length of 255 characters

Example:

"0192e4f5-924e-7bb9-8e5b-c748270feb38"

Response

202

application/json

txId · string · required