FLOW Token Management

Updated: 2022/7/18 by

1 min read

How to mint FLOW Token

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

1
import {
2
  init,
3
  emulator,
4
  getAccountAddress,
5
  getFlowBalance,
6
} from "@onflow/flow-js-testing"
7

8
const main = async () => {
9
  const basePath = path.resolve(__dirname, "../cadence")
10

11
  await init(basePath)
12
  await emulator.start()
13

14
  const Alice = await getAccountAddress("Alice")
15

16
  const [result, error] = await getFlowBalance(Alice)
17
  console.log(result, error)
18

19
  await emulator.stop()
20
}
21

22
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

1
import {init, emulator, mintFlow} from "@onflow/flow-js-testing"
2

3
const main = async () => {
4
  const basePath = path.resolve(__dirname, "../cadence")
5

6
  await init(basePath)
7
  await emulator.start()
8

9
  const Alice = await getAccountAddress("Alice")
10
  const amount = "42.0"
11
  const [mintResult, error] = await mintFlow(Alice)
12
  console.log(mintResult, error)
13

14
  await emulator.stop()
15
}
16

17
main()