EqBridge¶

Calls¶

disable_withdrawals¶

Disable asset withdrawals to specific chain under an associated resource ID. Sudo only.

# <weight> - O(1) write # </weight>

Attributes¶

Name	Type
resource_id	`chainbridge::ResourceId`
chain_id	`chainbridge::ChainId`

Python¶

call = substrate.compose_call(
    'EqBridge', 'disable_withdrawals', {
    'chain_id': 'u8',
    'resource_id': '[u8; 32]',
}
)

enable_withdrawals¶

Enable asset withdrawals to specific chain under an associated resource ID. Sudo only.

# <weight> - O(1) write # </weight>

Attributes¶

Name	Type
resource_id	`chainbridge::ResourceId`
chain_id	`chainbridge::ChainId`

Python¶

call = substrate.compose_call(
    'EqBridge', 'enable_withdrawals', {
    'chain_id': 'u8',
    'resource_id': '[u8; 32]',
}
)

remark¶

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

Attributes¶

Name	Type
hash	`T::Hash`

Python¶

call = substrate.compose_call(
    'EqBridge', 'remark', {'hash': 'scale_info::16'}
)

set_chain_address_type¶

Stores chain id relation to chain address type. Sudo only.

# <weight> - O(1) write # </weight>

Attributes¶

Name	Type
dest_id	`chainbridge::ChainId`
address_type	`Option<ChainAddressType>`

Python¶

call = substrate.compose_call(
    'EqBridge', 'set_chain_address_type', {
    'address_type': (
        None,
        (
            'Ethereum',
            'Substrate',
            'SubstrateWithPrefix',
        ),
    ),
    'dest_id': 'u8',
}
)

set_minimum_transfer_amount¶

Stores minimum transfer amount for sending asset to external chain. Sudo only.

# <weight> - O(1) write # </weight>

Attributes¶

Name	Type
dest_id	`chainbridge::ChainId`
resource_id	`chainbridge::ResourceId`
minimum_amount	`T::Balance`

Python¶

call = substrate.compose_call(
    'EqBridge', 'set_minimum_transfer_amount', {
    'dest_id': 'u8',
    'minimum_amount': 'u128',
    'resource_id': '[u8; 32]',
}
)

set_resource¶

Stores an asset on chain under an associated resource ID. Sudo only.

# <weight> - O(1) write # </weight>

Attributes¶

Name	Type
id	`chainbridge::ResourceId`
asset	`Asset`

Python¶

call = substrate.compose_call(
    'EqBridge', 'set_resource', {'asset': 'u64', 'id': '[u8; 32]'}
)

transfer¶

Deposits specified amount of Eq/Gens tokens to the user's account

Attributes¶

Name	Type
to	`T::AccountId`
amount	`T::Balance`
resource_id	`chainbridge::ResourceId`

Python¶

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

transfer_native¶

Transfers some amount of the native token to some recipient on a (whitelisted) destination chain. Charges fee and accumulates it on the special account.

Attributes¶

Name	Type
amount	`T::Balance`
recipient	`Vec<u8>`
dest_id	`chainbridge::ChainId`
resource_id	`chainbridge::ResourceId`

Python¶

call = substrate.compose_call(
    'EqBridge', 'transfer_native', {
    'amount': 'u128',
    'dest_id': 'u8',
    'recipient': 'Bytes',
    'resource_id': '[u8; 32]',
}
)

xcm_transfer¶

Attributes¶

Name	Type
to	`Vec<u8>`
amount	`T::Balance`
resource_id	`chainbridge::ResourceId`

Python¶

call = substrate.compose_call(
    'EqBridge', 'xcm_transfer', {
    'amount': 'u128',
    'resource_id': '[u8; 32]',
    'to': 'Bytes',
}
)

Events¶

ChainAddressTypeChanged¶

ChainAddressType has changed. [chainId, Option<ChainAddressType>]

Attributes¶

Name	Type	Composition
None	`chainbridge::ChainId`	`u8`
None	`Option<ChainAddressType>`	`(None, ('Ethereum', 'Substrate', 'SubstrateWithPrefix'))`

FromBridgeTransfer¶

Transfers funds from the bridge into the network

Attributes¶

Name	Type	Composition
None	`T::AccountId`	`AccountId`
None	`Asset`	`u64`
None	`T::Balance`	`u128`

FromBridgeTransferNext¶

Transfers funds from the bridge into the network to transfer next

Attributes¶

Name	Type	Composition
None	`Vec<u8>`	`Bytes`
None	`Asset`	`u64`
None	`T::Balance`	`u128`

MinimumTransferAmountChanged¶

Minimum transfer amount to out of the network has changed. [chainId, resourceId, new_minimum_amount]

Attributes¶

Name	Type	Composition
None	`chainbridge::ChainId`	`u8`
None	`chainbridge::ResourceId`	`[u8; 32]`
None	`T::Balance`	`u128`

Remark¶

Demonstrate an arbitrary call from a proposal. [hash]

Attributes¶

Name	Type	Composition
None	`T::Hash`	`scale_info::16`

ToBridgeTransfer¶

Transfers funds out of the network to the bridge

Attributes¶

Name	Type	Composition
None	`T::AccountId`	`AccountId`
None	`Asset`	`u64`
None	`T::Balance`	`u128`

WithdrawalsToggled¶

Allowability withdrawals for the resource id to chain has changed. [resource_id, chain_id, enabled]

Attributes¶

Name	Type	Composition
None	`chainbridge::ResourceId`	`[u8; 32]`
None	`chainbridge::ChainId`	`u8`
None	`bool`	`bool`

Storage functions¶

AssetResource¶

Python¶

result = substrate.query(
    'EqBridge', 'AssetResource', ['u64']
)

Return value¶

'[u8; 32]'

ChainAddressTypes¶

Python¶

result = substrate.query(
    'EqBridge', 'ChainAddressTypes', ['u8']
)

Return value¶

('Ethereum', 'Substrate', 'SubstrateWithPrefix')

EnabledWithdrawals¶

Python¶

result = substrate.query(
    'EqBridge', 'EnabledWithdrawals', ['[u8; 32]']
)

Return value¶

'Bytes'

MinimumTransferAmount¶

Python¶

result = substrate.query(
    'EqBridge', 'MinimumTransferAmount', ['u8', '[u8; 32]']
)

Return value¶

'u128'

Resources¶

Python¶

result = substrate.query(
    'EqBridge', 'Resources', ['[u8; 32]']
)

Return value¶

'u64'

Errors¶

ChainAddressTypeEqual¶

Attempt to set ChainAddressType to current value

ChainNotWhitelisted¶

Interactions with this chain is not permitted

DisabledChain¶

Bridge transfers to this chain are disabled

DisabledWithdrawals¶

Asset withdrawals to this chain are disabled

InvalidAccount¶

Invalid destination Account for XCM transfer

InvalidAssetType¶

not allowed to bridge tokens of this type

InvalidResourceId¶

Resource id not mapped to Asset

InvalidTransfer¶

RecipientChainAddressTypeMismatch¶

wrong recipient address

TransferAmountLowerMinimum¶

Transfer amount is lower than a minimum for given ChainId and ResourceId

WithdrawalsAllowabilityEqual¶

Withdrawals to this resource id and chain id have equal allowability