Flow Token Contract

The FlowToken contract defines the FLOW network token.

Source: FlowToken.cdc

Network	Contract Address
Emulator/Canary	0x0ae53cb6e3f42a79
Testnet	0x7e60df042a9c0868
Mainnet	0x1654653399040a61

Transactions

ID	Name	Source
FT.01	Transfer FLOW	flowToken/transfer_tokens.cdc
FT.02	Get an account's balance	flowToken/scripts/get_balance.cdc
FT.03	Get total supply	flowToken/scripts/get_supply.cdc

Events

Flow relies on a set of core contracts that define key portions of the Flow protocol. Those contracts are core contracts and are made to emit the events documented below. You can read about the core contracts here and view their source code and event definitions.

Events emitted from core contracts follow a standard format:

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A.{contract address}.{contract name}.{event name}

The components of the format are:

• contract address - the address of the account the contract has been deployed to
• contract name - the name of the contract in the source code
• event name - the name of the event as declared in the source code

Flow Token Contract

Description of events emitted from the FLOW Token contract. The contract defines the fungible FLOW token. Please note that events for the fungible token contracts are the same if deployed to a different account but the contract address is changed to the address of the account the contract has been deployed to.

Tokens Initialized

Event that is emitted when the contract gets created.

• Event name: TokensInitialized
• Mainnet event: A.1654653399040a61.FlowToken.TokensInitialized
• Testnet event: A.7e60df042a9c0868.FlowToken.TokensInitialized

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pub event TokensInitialized(initialSupply: UFix64)

Field	Type	Description
initialSupply	UFix64	The initial supply of the tokens

Tokens Withdrawn

Event that is emitted when tokens get withdrawn from a Vault.

• Event name: TokensWithdrawn
• Mainnet event: A.1654653399040a61.FlowToken.TokensWithdrawn
• Testnet event: A.7e60df042a9c0868.FlowToken.TokensWithdrawn

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pub event TokensWithdrawn(amount: UFix64, from: Address?)

Field	Type	Description
amount	UFix64	The amount of tokens withdrawn
from	Address?	Optional address of the account that owns the vault where tokens were withdrawn from. nil if the vault is not in an account's storage

Tokens Deposited

Event that is emitted when tokens get deposited to a Vault.

• Event name: TokensDeposited
• Mainnet event: A.1654653399040a61.FlowToken.TokensDeposited
• Testnet event: A.7e60df042a9c0868.FlowToken.TokensDeposited

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pub event TokensDeposited(amount: UFix64, to: Address?)

Field	Type	Description
amount	UFix64	The amount of tokens withdrawn
to	Address?	Optional address of the account that owns the vault where tokens were deposited to. nil if the vault is not in an account's storage

Tokens Minted

Event that is emitted when new tokens gets minted.

• Event name: TokensMinted
• Mainnet event: A.1654653399040a61.FlowToken.TokensMinted
• Testnet event: A.7e60df042a9c0868.FlowToken.TokensMinted

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pub event TokensMinted(amount: UFix64)

Field	Type	Description
amount	UFix64	The amount of tokens to mint

Tokens Burned

Event that is emitted when tokens get destroyed.

• Event name: TokensBurned
• Mainnet event: A.1654653399040a61.FlowToken.TokensBurned
• Testnet event: A.7e60df042a9c0868.FlowToken.TokensBurned

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pub event TokensBurned(amount: UFix64)

Field	Type	Description
amount	UFix64	The amount of tokens to burn

Minter Created

Event that is emitted when a new minter resource gets created.

• Event name: MinterCreated
• Mainnet event: A.1654653399040a61.FlowToken.MinterCreated
• Testnet event: A.7e60df042a9c0868.FlowToken.MinterCreated

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pub event MinterCreated(allowedAmount: UFix64)

Field	Type	Description
allowedAmount	UFix64	The amount of tokens that the minter is allowed to mint

Burner Created

Event that is emitted when a new burner Resource gets created.

• Event name: BurnerCreated
• Mainnet event: A.1654653399040a61.FlowToken.BurnerCreated
• Testnet event: A.7e60df042a9c0868.FlowToken.BurnerCreated

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pub event BurnerCreated()

Staking Events

To learn more about staking events, read staking/events/