Dmp

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Storage functions

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DeliveryFeeFactor

The factor to multiply the base delivery fee by.

Python

result = substrate.query(
    'Dmp', 'DeliveryFeeFactor', ['u32']
)

Return value

'u128'

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DownwardMessageQueueHeads

A mapping that stores the downward message queue MQC head for each para.

Each link in this chain has a form: (prev_head, B, H(M)), where - prev_head: is the previous head hash or zero if none. - B: is the relay-chain block number in which a message was appended. - H(M): is the hash of the message being appended.

Python

result = substrate.query(
    'Dmp', 'DownwardMessageQueueHeads', ['u32']
)

Return value

'scale_info::12'

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DownwardMessageQueues

The downward messages addressed for a certain para.

Python

result = substrate.query(
    'Dmp', 'DownwardMessageQueues', ['u32']
)

Return value

[{'msg': 'Bytes', 'sent_at': 'u32'}]

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