Parameters

BASE32, account address
BASE32, contract address
QUANTITY, gas limit
QUANTITY, gas price
QUANTITY, storage limit
QUANTITY|TAG, (optional, default: "latest_state") Integer epoch number, or the string "latest_state", "latest_confirmed", "latest_checkpoint" or "earliest", see the epoch number parameter.

Returns

isBalanceEnough: Boolean - Indicate balance is enough for gas fee and collateral storage
willPayCollateral: Boolean - False if the transaction is eligible for storage collateral sponsorship, true otherwise.
willPayTxFee: Boolean - False if the transaction is eligible for gas sponsorship, true otherwise.

Example

Request

curl --location --request POST 'https://cfx-core.unifra.io/v1/your-api-key' \
--header 'Content-Type: application/json' \
--data-raw '{
    "jsonrpc": "2.0",
    "method": "cfx_checkBalanceAgainstTransaction",
    "params": [
        "cfx:aatmuv92xj87ptxg6mr11c5amug2kv6ra21g7pbbrp",
        "cfx:achc8nxj7r451c223m18w2dwjnmhkd6rxawrvkvsy2",
        "0x26882",
        "0x1",
        "0x80"
    ],
    "id": 0
}'

Result

{
    "jsonrpc": "2.0",
    "result": {
        "isBalanceEnough": true,
        "willPayCollateral": false,
        "willPayTxFee": false
    },
    "id": 0
}