Fix: Add Polkadot delivery fee estimate methods from upstream

interlay / bridge

Polkadot bridge js SDK with XCM transfer.

Apache License 2.0

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Fix: Add Polkadot delivery fee estimate methods from upstream #175

Closed bvotteler closed 6 months ago

bvotteler commented 6 months ago

Added updated Polkadot XCM delivery fee calculations. This should be more accurate than our previous crutch estimate and prevent issues of getting reaped.

TODO before ready for review:

[ ] test in chopsticks if getting max transferable amount leaves enough to avoid getting reaped
[ ] bump version number if necessary

bvotteler commented 6 months ago

Closing as the upstream code also underestimates the fees required and leads to a reaped account, the cause of the miscalculation being currently unclear and requires more time to investigate.

PR #177 is sufficient to circumvent the issue for the time being.