POST
/
prepare-transactions
/
transferFrom
transferFrom
curl --request POST \
  --url https://api.sandbox.brickken.com/prepare-transactions/transferFrom \
  --header 'Content-Type: application/json' \
  --header 'x-api-key: <api-key>' \
  --data '{
  "signerAddress": "<string>",
  "chainId": "<string>",
  "tokenSymbol": "<string>",
  "from": "<string>",
  "to": "<string>",
  "amount": "<string>"
}'
{
  "transactions": [
    {}
  ],
  "txId": "<string>"
}
Prepares unsigned transactions for transferring tokens from one address to another (requires prior approval). This endpoint is equivalent to calling /prepare-transactions with method=transferFrom.

​
Request Body

ParameterTypeRequiredDescription
signerAddressstringYesAddress that will sign the transaction
chainIdstringYesBlockchain network identifier (hex format)
tokenSymbolstringYesSymbol of the token to transfer
fromstringYesSource address for the transfer
tostringYesDestination address for the transfer
amountstringYesAmount of tokens to transfer

​
Example Request

{
  "signerAddress": "0x742d35Cc6634C0532925a3b8D4C9db96c4b4d8b",
  "chainId": "aa36a7",
  "tokenSymbol": "EXMPL",
  "from": "0x123...",
  "to": "0x456...",
  "amount": "100"
}

​
Response

Returns an array of unsigned transactions that need to be signed and a transaction ID for tracking. 
{
  "transactions": [
    {
      "from": "0x742d35Cc6634C0532925a3b8D4C9db96c4b4d8b",
      "to": "0xTargetAddress",
      "value": {"type": "BigNumber", "hex": "0x00"},
      "nonce": 1,
      "chainId": 11155111,
      "data": "0x...",
      "type": 2,
      "maxPriorityFeePerGas": {"type": "BigNumber", "hex": "0x..."},
      "maxFeePerGas": {"type": "BigNumber", "hex": "0x..."},
      "gasLimit": {"type": "BigNumber", "hex": "0x..."}
    }
  ],
  "txId": "unique-transaction-id"
}

Authorizations

​
x-api-key
string
header
required

Body

application/json
​
signerAddress
string
​
chainId
string
​
tokenSymbol
string
​
from
string
​
to
string
​
amount
string

Response

200 - application/json

Successful response

​
transactions
object[]
required
​
txId
string
required