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msg.go
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msg.go
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package types
import (
"errors"
sdk "github.com/cosmos/cosmos-sdk/types"
sdkerrors "github.com/cosmos/cosmos-sdk/types/errors"
)
// ensure Msg interface compliance at compile time
var _ sdk.Msg = &MsgPlaceBid{}
// NewMsgPlaceBid returns a new MsgPlaceBid.
func NewMsgPlaceBid(auctionID uint64, bidder string, amt sdk.Coin) MsgPlaceBid {
return MsgPlaceBid{
AuctionId: auctionID,
Bidder: bidder,
Amount: amt,
}
}
// Route return the message type used for routing the message.
func (msg MsgPlaceBid) Route() string { return RouterKey }
// Type returns a human-readable string for the message, intended for utilization within tags.
func (msg MsgPlaceBid) Type() string { return "place_bid" }
// ValidateBasic does a simple validation check that doesn't require access to state.
func (msg MsgPlaceBid) ValidateBasic() error {
if msg.AuctionId == 0 {
return errors.New("auction id cannot be zero")
}
_, err := sdk.AccAddressFromBech32(msg.Bidder)
if err != nil {
return sdkerrors.Wrap(sdkerrors.ErrInvalidAddress, "bidder address cannot be empty or invalid")
}
if !msg.Amount.IsValid() {
return sdkerrors.Wrapf(sdkerrors.ErrInvalidCoins, "bid amount %s", msg.Amount)
}
return nil
}
// GetSignBytes gets the canonical byte representation of the Msg.
func (msg MsgPlaceBid) GetSignBytes() []byte {
bz := ModuleCdc.MustMarshalJSON(&msg)
return sdk.MustSortJSON(bz)
}
// GetSigners returns the addresses of signers that must sign.
func (msg MsgPlaceBid) GetSigners() []sdk.AccAddress {
bidder, err := sdk.AccAddressFromBech32(msg.Bidder)
if err != nil {
panic(err)
}
return []sdk.AccAddress{bidder}
}