0g-chain/x/auction/client/rest/query.go
2020-02-01 10:49:36 -05:00

119 lines
3.5 KiB
Go

package rest
import (
"fmt"
"net/http"
"github.com/gorilla/mux"
"github.com/cosmos/cosmos-sdk/client/context"
"github.com/cosmos/cosmos-sdk/types/rest"
"github.com/kava-labs/kava/x/auction/types"
)
const RestAuctionID = "auction-id"
func registerQueryRoutes(cliCtx context.CLIContext, r *mux.Router) {
r.HandleFunc(fmt.Sprintf("/auction/auctions/{%s}", RestAuctionID), queryAuctionHandlerFn(cliCtx)).Methods("GET")
r.HandleFunc("/auction/auctions", queryAuctionsHandlerFn(cliCtx)).Methods("GET")
r.HandleFunc("/auction/parameters", getParamsHandlerFn(cliCtx)).Methods("GET")
}
func queryAuctionHandlerFn(cliCtx context.CLIContext) http.HandlerFunc {
return func(w http.ResponseWriter, r *http.Request) {
// Parse the query height
cliCtx, ok := rest.ParseQueryHeightOrReturnBadRequest(w, cliCtx, r)
if !ok {
return
}
// Prepare params for querier
vars := mux.Vars(r)
if len(vars[RestAuctionID]) == 0 {
err := fmt.Errorf("%s required but not specified", RestAuctionID)
rest.WriteErrorResponse(w, http.StatusBadRequest, err.Error())
return
}
auctionID, ok := rest.ParseUint64OrReturnBadRequest(w, vars[RestAuctionID])
if !ok {
return
}
bz, err := cliCtx.Codec.MarshalJSON(types.QueryAuctionParams{AuctionID: auctionID})
if err != nil {
rest.WriteErrorResponse(w, http.StatusBadRequest, err.Error())
return
}
// Query
res, height, err := cliCtx.QueryWithData(fmt.Sprintf("/custom/%s/%s", types.ModuleName, types.QueryGetAuction), bz)
if err != nil {
rest.WriteErrorResponse(w, http.StatusInternalServerError, err.Error())
return
}
var auction types.Auction
err = cliCtx.Codec.UnmarshalJSON(res, &auction)
if err != nil {
rest.WriteErrorResponse(w, http.StatusInternalServerError, err.Error())
return
}
// Decode and return results
cliCtx = cliCtx.WithHeight(height)
auctionWithPhase := types.NewAuctionWithPhase(auction)
rest.PostProcessResponse(w, cliCtx, cliCtx.Codec.MustMarshalJSON(auctionWithPhase))
}
}
func queryAuctionsHandlerFn(cliCtx context.CLIContext) http.HandlerFunc {
return func(w http.ResponseWriter, r *http.Request) {
// Parse the query height
cliCtx, ok := rest.ParseQueryHeightOrReturnBadRequest(w, cliCtx, r)
if !ok {
return
}
// Get all auctions
res, height, err := cliCtx.QueryWithData(fmt.Sprintf("/custom/%s/%s", types.ModuleName, types.QueryGetAuctions), nil)
if err != nil {
rest.WriteErrorResponse(w, http.StatusNotFound, err.Error())
return
}
// Return auctions
cliCtx = cliCtx.WithHeight(height)
var auctions types.Auctions
err = cliCtx.Codec.UnmarshalJSON(res, &auctions)
if err != nil {
rest.WriteErrorResponse(w, http.StatusNotFound, err.Error())
return
}
var auctionsWithPhase []types.AuctionWithPhase
for _, a := range auctions {
auctionsWithPhase = append(auctionsWithPhase, types.NewAuctionWithPhase(a))
}
rest.PostProcessResponse(w, cliCtx, cliCtx.Codec.MustMarshalJSON(auctionsWithPhase))
}
}
func getParamsHandlerFn(cliCtx context.CLIContext) http.HandlerFunc {
return func(w http.ResponseWriter, r *http.Request) {
// Parse the query height
cliCtx, ok := rest.ParseQueryHeightOrReturnBadRequest(w, cliCtx, r)
if !ok {
return
}
// Get the params
res, height, err := cliCtx.QueryWithData(fmt.Sprintf("custom/%s/%s", types.ModuleName, types.QueryGetParams), nil)
if err != nil {
rest.WriteErrorResponse(w, http.StatusInternalServerError, err.Error())
return
}
// Return the params
cliCtx = cliCtx.WithHeight(height)
rest.PostProcessResponse(w, cliCtx, res)
}
}