erc20Bridger
Classes
AdminErc20Bridger
Admin functionality for the token bridge
Extends
Constructors
new AdminErc20Bridger()
new AdminErc20Bridger(childNetwork: ArbitrumNetwork): AdminErc20Bridger
Bridger for moving ERC20 tokens back and forth between parent-to-child
Parameters
| Parameter | Type |
|---|---|
childNetwork | ArbitrumNetwork |
Returns
Inherited from
Source
assetBridger/erc20Bridger.ts:201
Properties
| Property | Modifier | Type | Description | Inherited from |
|---|---|---|---|---|
nativeToken? | readonly | string | In case of a chain that uses ETH as its native/gas token, this is either undefined or the zero addressIn case of a chain that uses an ERC-20 token from the parent network as its native/gas token, this is the address of said token on the parent network | Erc20Bridger.nativeToken |
Accessors
nativeTokenIsEth
get protected nativeTokenIsEth(): boolean
Whether the chain uses ETH as its native/gas token
Returns
boolean
Source
assetBridger/assetBridger.ts:71
Methods
approveGasToken()
approveGasToken(params: ApproveParamsOrTxRequest): Promise<ContractTransaction>
Approves the custom gas token to be spent by the relevant gateway on the parent network
Parameters
| Parameter | Type | Description |
|---|---|---|
params | ApproveParamsOrTxRequest |
Returns
Promise<ContractTransaction>
Inherited from
Source
assetBridger/erc20Bridger.ts:272
approveToken()
approveToken(params: ApproveParamsOrTxRequest): Promise<ContractTransaction>
Approve tokens for deposit to the bridge. The tokens will be approved for the relevant gateway.
Parameters
| Parameter | Type | Description |
|---|---|---|
params | ApproveParamsOrTxRequest |
Returns
Promise<ContractTransaction>
Inherited from
Source
assetBridger/erc20Bridger.ts:335
checkChildNetwork()
protected checkChildNetwork(sop: SignerOrProvider): Promise<void>
Check the signer/provider matches the child network, throws if not
Parameters
| Parameter | Type | Description |
|---|---|---|
sop | SignerOrProvider |
Returns
Promise<void>
Inherited from
Erc20Bridger.checkChildNetwork
Source
assetBridger/assetBridger.ts:60
checkParentNetwork()
protected checkParentNetwork(sop: SignerOrProvider): Promise<void>
Check the signer/provider matches the parent network, throws if not
Parameters
| Parameter | Type | Description |
|---|---|---|
sop | SignerOrProvider |
Returns
Promise<void>
Inherited from
Erc20Bridger.checkParentNetwork
Source
assetBridger/assetBridger.ts:49
deposit()
deposit(params: Erc20DepositParams | ParentToChildTxReqAndSignerProvider): Promise<ParentContractCallTransaction>
Execute a token deposit from parent to child network
Parameters
| Parameter | Type | Description |
|---|---|---|
params | Erc20DepositParams | ParentToChildTxReqAndSignerProvider |
Returns
Promise<ParentContractCallTransaction>
Inherited from
Source
assetBridger/erc20Bridger.ts:754
getApproveGasTokenRequest()
getApproveGasTokenRequest(params: ProviderTokenApproveParams): Promise<Required<Pick<TransactionRequest, "data" | "value" | "to">>>
Creates a transaction request for approving the custom gas token to be spent by the relevant gateway on the parent network
Parameters
| Parameter | Type | Description |
|---|---|---|
params | ProviderTokenApproveParams |
Returns
Promise<Required<Pick<TransactionRequest, "data" | "value" | "to">>>
Inherited from
Erc20Bridger.getApproveGasTokenRequest
Source
assetBridger/erc20Bridger.ts:256
getApproveTokenRequest()
getApproveTokenRequest(params: ProviderTokenApproveParams): Promise<Required<Pick<TransactionRequest, "data" | "value" | "to">>>
Get a tx request to approve tokens for deposit to the bridge. The tokens will be approved for the relevant gateway.
Parameters
| Parameter | Type | Description |
|---|---|---|
params | ProviderTokenApproveParams |
Returns
Promise<Required<Pick<TransactionRequest, "data" | "value" | "to">>>
Inherited from
Erc20Bridger.getApproveTokenRequest
Source
assetBridger/erc20Bridger.ts:302
getChildErc20Address()
getChildErc20Address(erc20ParentAddress: string, parentProvider: Provider): Promise<string>
Get the corresponding child network token address for the provided parent network token
Parameters
| Parameter | Type | Description |
|---|---|---|
erc20ParentAddress | string | |
parentProvider | Provider |
Returns
Promise<string>
Inherited from
Erc20Bridger.getChildErc20Address
Source
assetBridger/erc20Bridger.ts:487
getChildGatewayAddress()
getChildGatewayAddress(erc20ParentAddress: string, childProvider: Provider): Promise<string>
Get the address of the child gateway for this token
Parameters
| Parameter | Type | Description |
|---|---|---|
erc20ParentAddress | string | |
childProvider | Provider |
Returns
Promise<string>
Inherited from
Erc20Bridger.getChildGatewayAddress
Source
assetBridger/erc20Bridger.ts:240
getChildGatewaySetEvents()
getChildGatewaySetEvents(
childProvider: Provider,
filter: object,
customNetworkL2GatewayRouter?: string): Promise<object[]>
Get all the gateway set events on the L2 gateway router
Parameters
| Parameter | Type |
|---|---|
childProvider | Provider |
filter | object |
filter.fromBlock | BlockTag |
filter.toBlock? | BlockTag |
customNetworkL2GatewayRouter? | string |
Returns
Promise<object[]>
Source
assetBridger/erc20Bridger.ts:1201
getChildTokenContract()
getChildTokenContract(childProvider: Provider, childTokenAddr: string): L2GatewayToken
Get the child network token contract at the provided address Note: This function just returns a typed ethers object for the provided address, it doesn't check the underlying form of the contract bytecode to see if it's an erc20, and doesn't ensure the validity of any of the underlying functions on that contract.
Parameters
| Parameter | Type | Description |
|---|---|---|
childProvider | Provider | |
childTokenAddr | string |
Returns
L2GatewayToken
Inherited from
Erc20Bridger.getChildTokenContract
Source
assetBridger/erc20Bridger.ts:458
getDepositRequest()
getDepositRequest(params: DepositRequest): Promise<ParentToChildTransactionRequest>
Get the arguments for calling the deposit function
Parameters
| Parameter | Type | Description |
|---|---|---|
params | DepositRequest |
Returns
Promise<ParentToChildTransactionRequest>
Inherited from
Erc20Bridger.getDepositRequest
Source
assetBridger/erc20Bridger.ts:647
getParentErc20Address()
getParentErc20Address(erc20ChildChainAddress: string, childProvider: Provider): Promise<string>
Get the corresponding parent network address for the provided child network token Validates the returned address against the child network router to ensure it is correctly mapped to the provided erc20ChildChainAddress
Parameters
| Parameter | Type | Description |
|---|---|---|
erc20ChildChainAddress | string | |
childProvider | Provider |
Returns
Promise<string>
Inherited from
Erc20Bridger.getParentErc20Address
Source
assetBridger/erc20Bridger.ts:510
getParentGatewayAddress()
getParentGatewayAddress(erc20ParentAddress: string, parentProvider: Provider): Promise<string>
Get the address of the parent gateway for this token
Parameters
| Parameter | Type | Description |
|---|---|---|
erc20ParentAddress | string | |
parentProvider | Provider |
Returns
Promise<string>
Inherited from
Erc20Bridger.getParentGatewayAddress
Source
assetBridger/erc20Bridger.ts:222
getParentGatewaySetEvents()
getParentGatewaySetEvents(parentProvider: Provider, filter: object): Promise<object[]>
Get all the gateway set events on the Parent gateway router
Parameters
| Parameter | Type | Description |
|---|---|---|
parentProvider | Provider | |
filter | object | - |
filter.fromBlock | BlockTag | - |
filter.toBlock | BlockTag | - |
Returns
Promise<object[]>
Source
assetBridger/erc20Bridger.ts:1177
getParentTokenContract()
getParentTokenContract(parentProvider: Provider, parentTokenAddr: string): ERC20
Get the parent token contract at the provided address Note: This function just returns a typed ethers object for the provided address, it doesnt check the underlying form of the contract bytecode to see if it's an erc20, and doesn't ensure the validity of any of the underlying functions on that contract.
Parameters
| Parameter | Type | Description |
|---|---|---|
parentProvider | Provider | |
parentTokenAddr | string |
Returns
ERC20
Inherited from
Erc20Bridger.getParentTokenContract
Source
assetBridger/erc20Bridger.ts:474
getWithdrawalEvents()
getWithdrawalEvents(
childProvider: Provider,
gatewayAddress: string,
filter: object,
parentTokenAddress?: string,
fromAddress?: string,
toAddress?: string): Promise<object & object[]>
Get the child network events created by a withdrawal
Parameters
| Parameter | Type | Description |
|---|---|---|
childProvider | Provider | |
gatewayAddress | string | |
filter | object | |
filter.fromBlock | BlockTag | - |
filter.toBlock? | BlockTag | - |
parentTokenAddress? | string | |
fromAddress? | string | |
toAddress? | string | - |
Returns
Promise<object & object[]>
Inherited from
Erc20Bridger.getWithdrawalEvents
Source
assetBridger/erc20Bridger.ts:363
getWithdrawalRequest()
getWithdrawalRequest(params: Erc20WithdrawParams): Promise<ChildToParentTransactionRequest>
Get the arguments for calling the token withdrawal function
Parameters
| Parameter | Type | Description |
|---|---|---|
params | Erc20WithdrawParams |
Returns
Promise<ChildToParentTransactionRequest>
Inherited from
Erc20Bridger.getWithdrawalRequest
Source
assetBridger/erc20Bridger.ts:811
isDepositDisabled()
isDepositDisabled(parentTokenAddress: string, parentProvider: Provider): Promise<boolean>
Whether the token has been disabled on the router
Parameters
| Parameter | Type | Description |
|---|---|---|
parentTokenAddress | string | |
parentProvider | Provider |
Returns
Promise<boolean>
Inherited from
Erc20Bridger.isDepositDisabled
Source
assetBridger/erc20Bridger.ts:556
isRegistered()
isRegistered(__namedParameters: object): Promise<boolean>
Checks if the token has been properly registered on both gateways. Mostly useful for tokens that use a custom gateway.
Parameters
| Parameter | Type |
|---|---|
__namedParameters | object |
__namedParameters.childProvider | Provider |
__namedParameters.erc20ParentAddress | string |
__namedParameters.parentProvider | Provider |
Returns
Promise<boolean>
Inherited from
Source
assetBridger/erc20Bridger.ts:907
registerCustomToken()
registerCustomToken(
parentTokenAddress: string,
childTokenAddress: string,
parentSigner: Signer,
childProvider: Provider): Promise<ParentContractTransaction<ParentTransactionReceipt>>
Register a custom token on the Arbitrum bridge See https://developer.offchainlabs.com/docs/bridging_assets#the-arbitrum-generic-custom-gateway for more details
Parameters
| Parameter | Type | Description |
|---|---|---|
parentTokenAddress | string | Address of the already deployed parent token. Must inherit from https://developer.offchainlabs.com/docs/sol_contract_docs/md_docs/arb-bridge-peripherals/tokenbridge/ethereum/icustomtoken. |
childTokenAddress | string | Address of the already deployed child token. Must inherit from https://developer.offchainlabs.com/docs/sol_contract_docs/md_docs/arb-bridge-peripherals/tokenbridge/arbitrum/iarbtoken. |
parentSigner | Signer | The signer with the rights to call registerTokenOnL2 on the parent token |
childProvider | Provider | Arbitrum rpc provider |
Returns
Promise<ParentContractTransaction<ParentTransactionReceipt>>
Source
assetBridger/erc20Bridger.ts:1018
setGateways()
setGateways(
parentSigner: Signer,
childProvider: Provider,
tokenGateways: TokenAndGateway[],
options?: GasOverrides): Promise<ParentContractCallTransaction>
Register the provided token addresses against the provided gateways
Parameters
| Parameter | Type | Description |
|---|---|---|
parentSigner | Signer | |
childProvider | Provider | |
tokenGateways | TokenAndGateway[] | |
options? | GasOverrides | - |
Returns
Promise<ParentContractCallTransaction>
Source
assetBridger/erc20Bridger.ts:1234
withdraw()
withdraw(params: ChildToParentTxReqAndSigner | OmitTyped<Erc20WithdrawParams, "from"> & object): Promise<ChildContractTransaction>
Withdraw tokens from child to parent network
Parameters
| Parameter | Type | Description |
|---|---|---|
params | ChildToParentTxReqAndSigner | OmitTyped<Erc20WithdrawParams, "from"> & object |
Returns
Promise<ChildContractTransaction>
Inherited from
Source
assetBridger/erc20Bridger.ts:874
fromProvider()
static fromProvider(childProvider: Provider): Promise<Erc20Bridger>
Instantiates a new Erc20Bridger from a child provider
Parameters
| Parameter | Type | Description |
|---|---|---|
childProvider | Provider |
Returns
Promise<Erc20Bridger>
Inherited from
Source
assetBridger/erc20Bridger.ts:212
Erc20Bridger
Bridger for moving ERC20 tokens back and forth between parent-to-child
Extends
AssetBridger<Erc20DepositParams|ParentToChildTxReqAndSignerProvider,OmitTyped<Erc20WithdrawParams,"from"> |ChildToParentTransactionRequest>
Extended by
Constructors
new Erc20Bridger()
new Erc20Bridger(childNetwork: ArbitrumNetwork): Erc20Bridger
Bridger for moving ERC20 tokens back and forth between parent-to-child
Parameters
| Parameter | Type |
|---|---|
childNetwork | ArbitrumNetwork |
Returns
Overrides
AssetBridger< Erc20DepositParams | ParentToChildTxReqAndSignerProvider, OmitTyped<Erc20WithdrawParams, 'from'> | ChildToParentTransactionRequest >.constructor
Source
assetBridger/erc20Bridger.ts:201
Properties
| Property | Modifier | Type | Description | Inherited from |
|---|---|---|---|---|
nativeToken? | readonly | string | In case of a chain that uses ETH as its native/gas token, this is either undefined or the zero addressIn case of a chain that uses an ERC-20 token from the parent network as its native/gas token, this is the address of said token on the parent network | AssetBridger.nativeToken |
Accessors
nativeTokenIsEth
get protected nativeTokenIsEth(): boolean
Whether the chain uses ETH as its native/gas token
Returns
boolean
Source
assetBridger/assetBridger.ts:71
Methods
approveGasToken()
approveGasToken(params: ApproveParamsOrTxRequest): Promise<ContractTransaction>
Approves the custom gas token to be spent by the relevant gateway on the parent network
Parameters
| Parameter | Type | Description |
|---|---|---|
params | ApproveParamsOrTxRequest |
Returns
Promise<ContractTransaction>
Source
assetBridger/erc20Bridger.ts:272
approveToken()
approveToken(params: ApproveParamsOrTxRequest): Promise<ContractTransaction>
Approve tokens for deposit to the bridge. The tokens will be approved for the relevant gateway.
Parameters
| Parameter | Type | Description |
|---|---|---|
params | ApproveParamsOrTxRequest |
Returns
Promise<ContractTransaction>
Source
assetBridger/erc20Bridger.ts:335
checkChildNetwork()
protected checkChildNetwork(sop: SignerOrProvider): Promise<void>
Check the signer/provider matches the child network, throws if not
Parameters
| Parameter | Type | Description |
|---|---|---|
sop | SignerOrProvider |
Returns
Promise<void>
Inherited from
AssetBridger.checkChildNetwork
Source
assetBridger/assetBridger.ts:60
checkParentNetwork()
protected checkParentNetwork(sop: SignerOrProvider): Promise<void>
Check the signer/provider matches the parent network, throws if not
Parameters
| Parameter | Type | Description |
|---|---|---|
sop | SignerOrProvider |
Returns
Promise<void>
Inherited from
AssetBridger.checkParentNetwork
Source
assetBridger/assetBridger.ts:49
deposit()
deposit(params: Erc20DepositParams | ParentToChildTxReqAndSignerProvider): Promise<ParentContractCallTransaction>
Execute a token deposit from parent to child network
Parameters
| Parameter | Type | Description |
|---|---|---|
params | Erc20DepositParams | ParentToChildTxReqAndSignerProvider |
Returns
Promise<ParentContractCallTransaction>
Overrides
Source
assetBridger/erc20Bridger.ts:754
getApproveGasTokenRequest()
getApproveGasTokenRequest(params: ProviderTokenApproveParams): Promise<Required<Pick<TransactionRequest, "data" | "value" | "to">>>
Creates a transaction request for approving the custom gas token to be spent by the relevant gateway on the parent network
Parameters
| Parameter | Type | Description |
|---|---|---|
params | ProviderTokenApproveParams |
Returns
Promise<Required<Pick<TransactionRequest, "data" | "value" | "to">>>
Source
assetBridger/erc20Bridger.ts:256
getApproveTokenRequest()
getApproveTokenRequest(params: ProviderTokenApproveParams): Promise<Required<Pick<TransactionRequest, "data" | "value" | "to">>>
Get a tx request to approve tokens for deposit to the bridge. The tokens will be approved for the relevant gateway.
Parameters
| Parameter | Type | Description |
|---|---|---|
params | ProviderTokenApproveParams |
Returns
Promise<Required<Pick<TransactionRequest, "data" | "value" | "to">>>
Source
assetBridger/erc20Bridger.ts:302
getChildErc20Address()
getChildErc20Address(erc20ParentAddress: string, parentProvider: Provider): Promise<string>
Get the corresponding child network token address for the provided parent network token
Parameters
| Parameter | Type | Description |
|---|---|---|
erc20ParentAddress | string | |
parentProvider | Provider |
Returns
Promise<string>
Source
assetBridger/erc20Bridger.ts:487
getChildGatewayAddress()
getChildGatewayAddress(erc20ParentAddress: string, childProvider: Provider): Promise<string>
Get the address of the child gateway for this token
Parameters
| Parameter | Type | Description |
|---|---|---|
erc20ParentAddress | string | |
childProvider | Provider |
Returns
Promise<string>
Source
assetBridger/erc20Bridger.ts:240
getChildTokenContract()
getChildTokenContract(childProvider: Provider, childTokenAddr: string): L2GatewayToken
Get the child network token contract at the provided address Note: This function just returns a typed ethers object for the provided address, it doesn't check the underlying form of the contract bytecode to see if it's an erc20, and doesn't ensure the validity of any of the underlying functions on that contract.
Parameters
| Parameter | Type | Description |
|---|---|---|
childProvider | Provider | |
childTokenAddr | string |
Returns
L2GatewayToken
Source
assetBridger/erc20Bridger.ts:458
getDepositRequest()
getDepositRequest(params: DepositRequest): Promise<ParentToChildTransactionRequest>
Get the arguments for calling the deposit function
Parameters
| Parameter | Type | Description |
|---|---|---|
params | DepositRequest |
Returns
Promise<ParentToChildTransactionRequest>
Source
assetBridger/erc20Bridger.ts:647
getDepositRequestCallValue()
private getDepositRequestCallValue(depositParams: OmitTyped<ParentToChildMessageGasParams, "deposit">): BigNumber | BigNumber
Get the call value for the deposit transaction request
Parameters
| Parameter | Type | Description |
|---|---|---|
depositParams | OmitTyped<ParentToChildMessageGasParams, "deposit"> |
Returns
BigNumber | BigNumber
Source
assetBridger/erc20Bridger.ts:589
getDepositRequestOutboundTransferInnerData()
private getDepositRequestOutboundTransferInnerData(depositParams: OmitTyped<ParentToChildMessageGasParams, "deposit">): string
Get the data param for call to outboundTransfer
Parameters
| Parameter | Type | Description |
|---|---|---|
depositParams | OmitTyped<ParentToChildMessageGasParams, "deposit"> |
Returns
string
Source
assetBridger/erc20Bridger.ts:612
getParentErc20Address()
getParentErc20Address(erc20ChildChainAddress: string, childProvider: Provider): Promise<string>
Get the corresponding parent network address for the provided child network token Validates the returned address against the child network router to ensure it is correctly mapped to the provided erc20ChildChainAddress
Parameters
| Parameter | Type | Description |
|---|---|---|
erc20ChildChainAddress | string | |
childProvider | Provider |
Returns
Promise<string>
Source
assetBridger/erc20Bridger.ts:510
getParentGatewayAddress()
getParentGatewayAddress(erc20ParentAddress: string, parentProvider: Provider): Promise<string>
Get the address of the parent gateway for this token
Parameters
| Parameter | Type | Description |
|---|---|---|
erc20ParentAddress | string | |
parentProvider | Provider |
Returns
Promise<string>
Source
assetBridger/erc20Bridger.ts:222
getParentTokenContract()
getParentTokenContract(parentProvider: Provider, parentTokenAddr: string): ERC20
Get the parent token contract at the provided address Note: This function just returns a typed ethers object for the provided address, it doesnt check the underlying form of the contract bytecode to see if it's an erc20, and doesn't ensure the validity of any of the underlying functions on that contract.
Parameters
| Parameter | Type | Description |
|---|---|---|
parentProvider | Provider | |
parentTokenAddr | string |
Returns
ERC20
Source
assetBridger/erc20Bridger.ts:474
getWithdrawalEvents()
getWithdrawalEvents(
childProvider: Provider,
gatewayAddress: string,
filter: object,
parentTokenAddress?: string,
fromAddress?: string,
toAddress?: string): Promise<object & object[]>
Get the child network events created by a withdrawal
Parameters
| Parameter | Type | Description |
|---|---|---|
childProvider | Provider | |
gatewayAddress | string | |
filter | object | |
filter.fromBlock | BlockTag | - |
filter.toBlock? | BlockTag | - |
parentTokenAddress? | string | |
fromAddress? | string | |
toAddress? | string | - |
Returns
Promise<object & object[]>
Source
assetBridger/erc20Bridger.ts:363
getWithdrawalRequest()
getWithdrawalRequest(params: Erc20WithdrawParams): Promise<ChildToParentTransactionRequest>
Get the arguments for calling the token withdrawal function
Parameters
| Parameter | Type | Description |
|---|---|---|
params | Erc20WithdrawParams |
Returns
Promise<ChildToParentTransactionRequest>
Source
assetBridger/erc20Bridger.ts:811
isDepositDisabled()
isDepositDisabled(parentTokenAddress: string, parentProvider: Provider): Promise<boolean>
Whether the token has been disabled on the router
Parameters
| Parameter | Type | Description |
|---|---|---|
parentTokenAddress | string | |
parentProvider | Provider |
Returns
Promise<boolean>
Source
assetBridger/erc20Bridger.ts:556
isRegistered()
isRegistered(__namedParameters: object): Promise<boolean>
Checks if the token has been properly registered on both gateways. Mostly useful for tokens that use a custom gateway.
Parameters
| Parameter | Type |
|---|---|
__namedParameters | object |
__namedParameters.childProvider | Provider |
__namedParameters.erc20ParentAddress | string |
__namedParameters.parentProvider | Provider |
Returns
Promise<boolean>
Source
assetBridger/erc20Bridger.ts:907
isWethGateway()
private isWethGateway(gatewayAddress: string, parentProvider: Provider): Promise<boolean>
Is this a known or unknown WETH gateway
Parameters
| Parameter | Type | Description |
|---|---|---|
gatewayAddress | string | |
parentProvider | Provider |
Returns
Promise<boolean>
Source
assetBridger/erc20Bridger.ts:432
looksLikeWethGateway()
private looksLikeWethGateway(potentialWethGatewayAddress: string, parentProvider: Provider): Promise<boolean>
Does the provided address look like a weth gateway
Parameters
| Parameter | Type | Description |
|---|---|---|
potentialWethGatewayAddress | string | |
parentProvider | Provider |
Returns
Promise<boolean>
Source
assetBridger/erc20Bridger.ts:402
withdraw()
withdraw(params: ChildToParentTxReqAndSigner | OmitTyped<Erc20WithdrawParams, "from"> & object): Promise<ChildContractTransaction>
Withdraw tokens from child to parent network
Parameters
| Parameter | Type | Description |
|---|---|---|
params | ChildToParentTxReqAndSigner | OmitTyped<Erc20WithdrawParams, "from"> & object |
Returns
Promise<ChildContractTransaction>
Overrides
Source
assetBridger/erc20Bridger.ts:874
fromProvider()
static fromProvider(childProvider: Provider): Promise<Erc20Bridger>
Instantiates a new Erc20Bridger from a child provider
Parameters
| Parameter | Type | Description |
|---|---|---|
childProvider | Provider |
Returns
Promise<Erc20Bridger>