package paychan import ( "reflect" sdk "github.com/cosmos/cosmos-sdk/types" ) // NewHandler returns a handler for "paychan" type messages. // Called when adding routes to a newly created app. func NewHandler(k Keeper) sdk.Handler { return func(ctx sdk.Context, msg sdk.Msg) sdk.Result { switch msg := msg.(type) { case MsgCreate: return handleMsgCreate(ctx, k, msg) case MsgClose: return handleMsgClose(ctx, k, msg) default: errMsg := "Unrecognized paychan Msg type: " + reflect.TypeOf(msg).Name() return sdk.ErrUnknownRequest(errMsg).Result() } } } // Handle CreateMsg. // Leaves validation to the keeper methods. func handleMsgCreate(ctx sdk.Context, k Keeper, msg MsgCreate) sdk.Result { // TODO maybe remove tags for first version tags, err := k.CreatePaychan(msg.sender, msg.receiver, msg.amount) if err != nil { return err.Result() } // TODO any other information that should be returned in Result? return sdk.Result{ Tags: tags } } // Handle CloseMsg. // Leaves validation to the keeper methods. func handleMsgClose(ctx sdk.Context, k Keeper, msg MsgClose) sdk.Result { // TODO maybe remove tags for first version tags, err := k.ClosePaychan(msg.sender, msg.receiver, msg.id, msg.receiverAmount) if err != nil { return err.Result() } // These tags can be used to subscribe to channel closures return sdk.Result{ Tags: tags } }