Bridge

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Calls

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remark

This can be called by the chainbridge to demonstrate an arbitrary call from a proposal.

Attributes

Name	Type
hash	<T as frame_system::Config>::Hash
r_id	ResourceId

Python

call = substrate.compose_call(
    'Bridge', 'remark', {
    'hash': 'scale_info::12',
    'r_id': '[u8; 32]',
}
)

---

transfer

Executes a simple currency transfer using the chainbridge account as the source

Attributes

Name	Type
to	<T as frame_system::Config>::AccountId
amount	BalanceOf<T>
r_id	ResourceId

Python

call = substrate.compose_call(
    'Bridge', 'transfer', {
    'amount': 'u128',
    'r_id': '[u8; 32]',
    'to': 'AccountId',
}
)

---

transfer_native

Transfers some amount of the native token to some recipient on a (whitelisted) destination chain.

Attributes

Name	Type
amount	BalanceOf<T>
recipient	Vec<u8>
dest_id	ChainId

Python

call = substrate.compose_call(
    'Bridge', 'transfer_native', {
    'amount': 'u128',
    'dest_id': 'u8',
    'recipient': 'Bytes',
}
)

---

Events

---

Remark

Attributes

Name	Type	Composition
None	<T as frame_system::Config>::Hash	scale_info::12
None	ResourceId	[u8; 32]

---

Storage functions

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Constants

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BridgePalletId

Pallet identifier.

The module identifier may be of the form PalletId(*b"c/bridge") (a string of eight characters) and set using the parameter_types macro in one of the runtimes (see runtime folder).

Value

'0x63686e6272646765'

Python

constant = substrate.get_constant('Bridge', 'BridgePalletId')

---

NativeTokenId

Value

'0x000000000000000000000000000000330324dbcad5cd41be14952877e636a101'

Python

constant = substrate.get_constant('Bridge', 'NativeTokenId')

---

NativeTokenTransferFeeKey

Key used to retrieve the fee that are charged when transferring native tokens to target chains.

Value

'BridgeNativeTransfer'

Python

constant = substrate.get_constant('Bridge', 'NativeTokenTransferFeeKey')

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Errors

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InvalidTransfer

Invalid transfer

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