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  1. Apr 26, 2024
  3. Apr 09, 2024
  5. Apr 02, 2024
  7. Mar 22, 2024
    • Vincent Geddes's avatar
      Add a linear fee multiplier (#127) (#3790) · 22d5b80d
      Vincent Geddes authored 
      Bridging fees are calculated using a static ETH/DOT exchange rate that
can deviate significantly from the real-world exchange rate. We
therefore need to add a safety margin to the fee so that users almost
aways cover the cost of relaying.

# FAQ

> Why introduce a `multiplier` parameter instead of configuring an
exchange rate which already has a safety factor applied?

When converting from ETH to DOT, we need to _divide_ the multiplier by
the exchange rate, and to convert from DOT to ETH we need to _multiply_
the multiplier by the exchange rate.

> Other input parameters to the fee calculation can also deviate from
real-world values. These include substrate weights, gas prices, and so
on. Why does the multiplier introduced here not adjust those?

A single scalar multiplier won't be able to accommodate the different
volatilities efficiently. For example, gas prices are much more volatile
than exchange rates, and substrate weights hardly ever change.

So the pricing config relating to weights and gas prices should already
have some appropriate safety margin pre-applied.

# Detailed Changes:

* Added `multiplier` field to `PricingParameters`
* Outbound-queue fee is multiplied by `multiplier`
* This `multiplier` is synced to the Ethereum side
* Improved Runtime API for calculating outbound-queue fees. This API
makes it much easier to for configure parts of the system in preparation
for launch.
* Improve and clarify code documentation

Upstreamed from https://github.com/Snowfork/polkadot-sdk/pull/127



---------

Co-authored-by: default avatarClara van Staden <[email protected]>
Co-authored-by: default avatarAdrian Catangiu <[email protected]>
      22d5b80d
  9. Feb 28, 2024
  11. Feb 20, 2024
    • Oliver Tale-Yazdi's avatar
      Lift dependencies to the workspace (Part 2/x) (#3366) · e89d0fca
      Oliver Tale-Yazdi authored 
      

Lifting some more dependencies to the workspace. Just using the
most-often updated ones for now.
It can be reproduced locally.

```sh
# First you can check if there would be semver incompatible bumps (looks good in this case):
$ zepter transpose dependency lift-to-workspace --ignore-errors syn quote thiserror "regex:^serde.*"

# Then apply the changes:
$ zepter transpose dependency lift-to-workspace --version-resolver=highest syn quote thiserror "regex:^serde.*" --fix

# And format the changes:
$ taplo format --config .config/taplo.toml
```

---------

Signed-off-by: default avatarOliver Tale-Yazdi <[email protected]>
      e89d0fca
  13. Feb 16, 2024
  15. Feb 12, 2024
  17. Feb 02, 2024
    • Clara van Staden's avatar
      Removes Snowbridge parachain directory (#3186) · 2ab3f03f
      Clara van Staden authored 
      Removes the `bridges/snowbridge/parachain` directory and moves
everything up to under `snowbridge` directly. We are cleaning up our
local dev env after merging our crates into the polkadot-sdk.

---------

Co-authored-by: claravanstaden <Cats 4 life!>
      2ab3f03f