0g-chain/x/auction/client/rest/tx.go

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2019-11-25 19:46:02 +00:00
package rest
import (
"bytes"
"fmt"
"net/http"
"github.com/gorilla/mux"
"github.com/cosmos/cosmos-sdk/client/context"
sdk "github.com/cosmos/cosmos-sdk/types"
"github.com/cosmos/cosmos-sdk/types/rest"
"github.com/cosmos/cosmos-sdk/x/auth/client/utils"
"github.com/kava-labs/kava/x/auction/types"
)
type placeBidReq struct {
BaseReq rest.BaseReq `json:"base_req"`
AuctionID string `json:"auction_id"`
Bidder string `json:"bidder"`
Bid string `json:"bid"`
Lot string `json:"lot"`
}
const (
restAuctionID = "auction_id"
restBidder = "bidder"
restBid = "bid"
restLot = "lot"
)
func registerTxRoutes(cliCtx context.CLIContext, r *mux.Router) {
r.HandleFunc(
fmt.Sprintf("/auction/bid/{%s}/{%s}/{%s}/{%s}", restAuctionID, restBidder, restBid, restLot), bidHandlerFn(cliCtx)).Methods("PUT")
}
func bidHandlerFn(cliCtx context.CLIContext) http.HandlerFunc {
return func(w http.ResponseWriter, r *http.Request) {
var req placeBidReq
vars := mux.Vars(r)
strAuctionID := vars[restAuctionID]
bechBidder := vars[restBidder]
strBid := vars[restBid]
strLot := vars[restLot]
auctionID, err := types.NewIDFromString(strAuctionID)
if err != nil {
rest.WriteErrorResponse(w, http.StatusBadRequest, err.Error())
return
}
bidder, err := sdk.AccAddressFromBech32(bechBidder)
if err != nil {
rest.WriteErrorResponse(w, http.StatusBadRequest, err.Error())
return
}
bid, err := sdk.ParseCoin(strBid)
if err != nil {
rest.WriteErrorResponse(w, http.StatusBadRequest, err.Error())
return
}
lot, err := sdk.ParseCoin(strLot)
if err != nil {
rest.WriteErrorResponse(w, http.StatusBadRequest, err.Error())
return
}
msg := types.NewMsgPlaceBid(auctionID, bidder, bid, lot)
if err := msg.ValidateBasic(); err != nil {
rest.WriteErrorResponse(w, http.StatusBadRequest, err.Error())
return
}
fromAddr, err := sdk.AccAddressFromBech32(req.BaseReq.From)
if !bytes.Equal(fromAddr, bidder) {
rest.WriteErrorResponse(w, http.StatusUnauthorized, "must bid from own address")
return
}
utils.WriteGenerateStdTxResponse(w, cliCtx, req.BaseReq, []sdk.Msg{msg})
}
}