0g-chain/x/auction/client/rest/query.go
Denali Marsh e2f515ba9e
Querier improvements: CDP and Auction priority 1 queries (#644)
* query auction by lot owner

* add SavingsRateDistributed to store

* v2cdps: filtered cdps query

* update v2cdps cli examples

* add savings rate dist counter to begin blocker

* implement savings rate dist cli query

* implement cdp REST queries

* minor auction CLI/REST updates

* fix auction querier bug

* update REST endpoint to 'cdps'

* update to savings-rate-dist

* update SavingsRateDistributed get/set

* update tests

* fix savings rate dist rounding errors

* 'collateralDenom' -> 'collateralType'

* refactor 'v2cdps' -> 'cdps', add ratio param

* fix augmented CDP type, msg string() method

* fix cdp querier test

* filter query results efficiently

* querier tests

* limit type iteration if owner defined

* improve savings rate dist genesis validation

* default sdk.Dec{} to sdk.ZeroDec in queries

* update condition logic for finding intersection

* fix cdp querier filtering

* Update kava-4 swagger (#653)

* add collateral_type, update cdp params

* savings rate, auctions, get cdps

* drop owner from AuctionResponse

* remove duplicate collateral denom

* update query paths with {collateral-type}
2020-09-16 20:45:10 -04:00

168 lines
5.5 KiB
Go

package rest
import (
"fmt"
"net/http"
"strings"
"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/kava-labs/kava/x/auction/client/common"
"github.com/kava-labs/kava/x/auction/types"
)
const restAuctionID = "auction-id"
func registerQueryRoutes(cliCtx context.CLIContext, r *mux.Router) {
r.HandleFunc(fmt.Sprintf("/%s/auctions", types.ModuleName), queryAuctionsHandlerFn(cliCtx)).Methods("GET")
r.HandleFunc(fmt.Sprintf("/%s/auctions/{%s}", types.ModuleName, restAuctionID), queryAuctionHandlerFn(cliCtx)).Methods("GET")
r.HandleFunc(fmt.Sprintf("/%s/parameters", types.ModuleName), 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
}
auction, height, err := common.QueryAuctionByID(cliCtx, cliCtx.Codec, types.ModuleName, auctionID)
if err != nil {
rest.WriteErrorResponse(w, http.StatusBadRequest, 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) {
_, page, limit, err := rest.ParseHTTPArgsWithLimit(r, 0)
if err != nil {
rest.WriteErrorResponse(w, http.StatusBadRequest, err.Error())
return
}
// Parse the query height
cliCtx, ok := rest.ParseQueryHeightOrReturnBadRequest(w, cliCtx, r)
if !ok {
return
}
var auctionType string
var auctionOwner sdk.AccAddress
var auctionDenom string
var auctionPhase string
if x := r.URL.Query().Get(RestType); len(x) != 0 {
auctionType = strings.ToLower(strings.TrimSpace(x))
if auctionType != types.CollateralAuctionType &&
auctionType != types.SurplusAuctionType &&
auctionType != types.DebtAuctionType {
rest.WriteErrorResponse(w, http.StatusBadRequest, fmt.Sprintf("invalid auction type %s", x))
return
}
}
if x := r.URL.Query().Get(RestOwner); len(x) != 0 {
if auctionType != types.CollateralAuctionType {
rest.WriteErrorResponse(w, http.StatusBadRequest, "cannot apply owner flag to non-collateral auction type")
}
auctionOwnerStr := strings.ToLower(strings.TrimSpace(x))
auctionOwner, err = sdk.AccAddressFromBech32(auctionOwnerStr)
if err != nil {
rest.WriteErrorResponse(w, http.StatusBadRequest, fmt.Sprintf("cannot parse address from auction owner %s", auctionOwnerStr))
}
}
if x := r.URL.Query().Get(RestDenom); len(x) != 0 {
auctionDenom = strings.TrimSpace(x)
err := sdk.ValidateDenom(auctionDenom)
if err != nil {
rest.WriteErrorResponse(w, http.StatusBadRequest, err.Error())
return
}
}
if x := r.URL.Query().Get(RestPhase); len(x) != 0 {
auctionPhase = strings.ToLower(strings.TrimSpace(x))
if auctionType != types.CollateralAuctionType && len(auctionType) > 0 {
rest.WriteErrorResponse(w, http.StatusBadRequest, "cannot apply phase flag to non-collateral auction type")
return
}
if auctionPhase != types.ForwardAuctionPhase && auctionPhase != types.ReverseAuctionPhase {
rest.WriteErrorResponse(w, http.StatusBadRequest, fmt.Sprintf("invalid auction phase %s", x))
return
}
}
params := types.NewQueryAllAuctionParams(page, limit, auctionType, auctionDenom, auctionPhase, auctionOwner)
bz, err := cliCtx.Codec.MarshalJSON(params)
if err != nil {
rest.WriteErrorResponse(w, http.StatusBadRequest, err.Error())
return
}
route := fmt.Sprintf("custom/%s/%s", types.ModuleName, types.QueryGetAuctions)
res, height, err := cliCtx.QueryWithData(route, bz)
if err != nil {
rest.WriteErrorResponse(w, http.StatusInternalServerError, err.Error())
return
}
cliCtx = cliCtx.WithHeight(height)
// Unmarshal to Auction and remarshal as AuctionWithPhase
var auctions types.Auctions
err = cliCtx.Codec.UnmarshalJSON(res, &auctions)
if err != nil {
rest.WriteErrorResponse(w, http.StatusNotFound, err.Error())
return
}
auctionsWithPhase := []types.AuctionWithPhase{} // using empty slice so json returns [] instead of null when there's no auctions
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
}
// Decode and return results
cliCtx = cliCtx.WithHeight(height)
rest.PostProcessResponse(w, cliCtx, res)
}
}