0g-chain/x/auction/handler.go

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package auction
import (
sdk "github.com/cosmos/cosmos-sdk/types"
sdkerrors "github.com/cosmos/cosmos-sdk/types/errors"
"github.com/kava-labs/kava/x/auction/types"
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)
// NewHandler returns a function to handle all "auction" type messages.
func NewHandler(keeper Keeper) sdk.Handler {
return func(ctx sdk.Context, msg sdk.Msg) (*sdk.Result, error) {
ctx = ctx.WithEventManager(sdk.NewEventManager())
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switch msg := msg.(type) {
case MsgPlaceBid:
return handleMsgPlaceBid(ctx, keeper, msg)
default:
return nil, sdkerrors.Wrapf(sdkerrors.ErrUnknownRequest, "unrecognized %s message type: %T", ModuleName, msg)
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}
}
}
func handleMsgPlaceBid(ctx sdk.Context, keeper Keeper, msg MsgPlaceBid) (*sdk.Result, error) {
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err := keeper.PlaceBid(ctx, msg.AuctionID, msg.Bidder, msg.Amount)
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if err != nil {
return nil, err
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}
ctx.EventManager().EmitEvent(
sdk.NewEvent(
sdk.EventTypeMessage,
sdk.NewAttribute(sdk.AttributeKeyModule, types.AttributeValueCategory),
sdk.NewAttribute(sdk.AttributeKeySender, msg.Bidder.String()),
),
)
return &sdk.Result{
Events: ctx.EventManager().Events(),
}, nil
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}