FLOW Token Management

Some actions on the network will require an account to have a certain amount of FLOW (tokens) - transaction and storage fees, account creation, etc. Framework provides a method to query FLOW balances with getFlowBalance and mint new tokens via mintFlow.

getFlowBalance(address)

Returns current FLOW token balance of the specified account.

Arguments

Name	Type	Description
address	Address	address of the account to check

Returns

Type	Description
string	UFix64 amount of FLOW tokens stored in account storage

Usage

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import {

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init,

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emulator,

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getAccountAddress,

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getFlowBalance,

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} from "@onflow/flow-js-testing"

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const main = async () => {

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const basePath = path.resolve(__dirname, "../cadence")

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await init(basePath)

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await emulator.start()

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const Alice = await getAccountAddress("Alice")

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const [result, error] = await getFlowBalance(Alice)

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console.log(result, error)

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await emulator.stop()

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}

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main()

mintFlow(recipient, amount)

Sends transaction to mint the specified amount of FLOW and send it to recipient.

⚠️ Required: Framework shall be initialized with init method for this method to work.

Arguments

Name	Type	Description
recipient	Address	address of the account to check
amount	string	UFix64 amount of FLOW tokens to mint and send to recipient

Usage

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import {init, emulator, mintFlow} from "@onflow/flow-js-testing"

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const main = async () => {

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const basePath = path.resolve(__dirname, "../cadence")

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await init(basePath)

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await emulator.start()

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const Alice = await getAccountAddress("Alice")

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const amount = "42.0"

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const [mintResult, error] = await mintFlow(Alice)

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console.log(mintResult, error)

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await emulator.stop()

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}

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main()