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

package rest

import (
	"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"
)

func registerTxRoutes(cliCtx context.CLIContext, r *mux.Router) {
	r.HandleFunc(fmt.Sprintf("/%s/auctions/{%s}/bids", types.ModuleName, restAuctionID), bidHandlerFn(cliCtx)).Methods("POST")
}

type placeBidReq struct {
	BaseReq rest.BaseReq `json:"base_req"`
	Amount  sdk.Coin     `json:"amount"`
}

func bidHandlerFn(cliCtx context.CLIContext) http.HandlerFunc {
	return func(w http.ResponseWriter, r *http.Request) {

		// Get auction ID from url
		auctionID, ok := rest.ParseUint64OrReturnBadRequest(w, mux.Vars(r)[restAuctionID])
		if !ok {
			return
		}

		// Get info from the http request body
		var req placeBidReq
		if !rest.ReadRESTReq(w, r, cliCtx.Codec, &req) {
			return
		}
		req.BaseReq = req.BaseReq.Sanitize()
		if !req.BaseReq.ValidateBasic(w) {
			return
		}
		bidderAddr, err := sdk.AccAddressFromBech32(req.BaseReq.From)
		if err != nil {
			rest.WriteErrorResponse(w, http.StatusBadRequest, err.Error())
			return
		}

		// Create and return a StdTx
		msg := types.NewMsgPlaceBid(auctionID, bidderAddr, req.Amount)
		if err := msg.ValidateBasic(); err != nil {
			rest.WriteErrorResponse(w, http.StatusBadRequest, err.Error())
			return
		}
		utils.WriteGenerateStdTxResponse(w, cliCtx, req.BaseReq, []sdk.Msg{msg})
	}
}