0g-chain/x/pricefeed/spec/06_end_block.md
Ruaridh ffef832d45
Upgrade to sdk v0.44.5 and add IBC (#1106)
- Upgrade cosmos-sdk to v0.44.5 from v0.39.2
- Add Legacy Tx Endpoint for backwards compatibility
- Add IBC v1.2.3 Support

Co-authored-by: DracoLi <draco@dracoli.com>
Co-authored-by: drklee3 <derrick@dlee.dev>
Co-authored-by: denalimarsh <denalimarsh@gmail.com>
Co-authored-by: Draco Li <draco@kava.io>
Co-authored-by: Nick DeLuca <nickdeluca08@gmail.com>
Co-authored-by: Kevin Davis <karzak@users.noreply.github.com>
Co-authored-by: Denali Marsh <denali@kava.io>
2022-01-07 17:39:27 -07:00

701 B

End Block

At the end of each block, the current price is calculated as the median of all raw prices for each market. The logic is as follows:

// EndBlocker updates the current pricefeed
func EndBlocker(ctx sdk.Context, k Keeper) {
	// Update the current price of each asset.
	for _, market := range k.GetMarkets(ctx) {
		if market.Active {
			err := k.SetCurrentPrices(ctx, market.MarketId)
			if err != nil {
				// In the event of failure, emit an event.
				ctx.EventManager().EmitEvent(
					sdk.NewEvent(
						EventTypeNoValidPrices,
						sdk.NewAttribute(AttributeMarketID, fmt.Sprintf("%s", market.MarketId)),
					),
				)
				continue
			}
		}
	}
	return
}