Additional Hard module queries (#884)

* unsynced deposits/borrows queriers

* cli queriers

* rest querier

* implement interest factor querier

* querier cli

* querier rest

* fix typo in comment

x/hard/client/cli/query.go

@@ -38,11 +38,14 @@ func GetQueryCmd(queryRoute string, cdc *codec.Codec) *cobra.Command {
 		queryParamsCmd(queryRoute, cdc),
 		queryModAccountsCmd(queryRoute, cdc),
 		queryDepositsCmd(queryRoute, cdc),
+		queryUnsyncedDepositsCmd(queryRoute, cdc),
 		queryTotalDepositedCmd(queryRoute, cdc),
 		queryBorrowsCmd(queryRoute, cdc),
+		queryUnsyncedBorrowsCmd(queryRoute, cdc),
 		queryTotalBorrowedCmd(queryRoute, cdc),
 		queryInterestRateCmd(queryRoute, cdc),
 		queryReserves(queryRoute, cdc),
+		queryInterestFactorsCmd(queryRoute, cdc),
 	)...)
 
 	return hardQueryCmd
@@ -115,6 +118,66 @@ func queryModAccountsCmd(queryRoute string, cdc *codec.Codec) *cobra.Command {
 	}
 }
 
+func queryUnsyncedDepositsCmd(queryRoute string, cdc *codec.Codec) *cobra.Command {
+	cmd := &cobra.Command{
+		Use:   "unsynced-deposits",
+		Short: "query hard module unsynced deposits with optional filters",
+		Long: strings.TrimSpace(`query for all hard module unsynced deposits or a specific unsynced deposit using flags:
+
+		Example:
+		$ kvcli q hard unsynced-deposits
+		$ kvcli q hard unsynced-deposits --owner kava1l0xsq2z7gqd7yly0g40y5836g0appumark77ny --denom bnb
+		$ kvcli q hard unsynced-deposits --denom ukava
+		$ kvcli q hard unsynced-deposits --denom btcb`,
+		),
+		Args: cobra.NoArgs,
+		RunE: func(cmd *cobra.Command, args []string) error {
+			cliCtx := context.NewCLIContext().WithCodec(cdc)
+
+			var owner sdk.AccAddress
+
+			ownerBech := viper.GetString(flagOwner)
+			denom := viper.GetString(flagDenom)
+
+			if len(ownerBech) != 0 {
+				depositOwner, err := sdk.AccAddressFromBech32(ownerBech)
+				if err != nil {
+					return err
+				}
+				owner = depositOwner
+			}
+
+			page := viper.GetInt(flags.FlagPage)
+			limit := viper.GetInt(flags.FlagLimit)
+
+			params := types.NewQueryUnsyncedDepositsParams(page, limit, denom, owner)
+			bz, err := cdc.MarshalJSON(params)
+			if err != nil {
+				return err
+			}
+
+			route := fmt.Sprintf("custom/%s/%s", queryRoute, types.QueryGetUnsyncedDeposits)
+			res, height, err := cliCtx.QueryWithData(route, bz)
+			if err != nil {
+				return err
+			}
+			cliCtx = cliCtx.WithHeight(height)
+
+			var deposits types.Deposits
+			if err := cdc.UnmarshalJSON(res, &deposits); err != nil {
+				return fmt.Errorf("failed to unmarshal deposits: %w", err)
+			}
+			return cliCtx.PrintOutput(deposits)
+		},
+	}
+
+	cmd.Flags().Int(flags.FlagPage, 1, "pagination page to query for")
+	cmd.Flags().Int(flags.FlagLimit, 100, "pagination limit (max 100)")
+	cmd.Flags().String(flagOwner, "", "(optional) filter for unsynced deposits by owner address")
+	cmd.Flags().String(flagDenom, "", "(optional) filter for unsynced deposits by denom")
+	return cmd
+}
+
 func queryDepositsCmd(queryRoute string, cdc *codec.Codec) *cobra.Command {
 	cmd := &cobra.Command{
 		Use:   "deposits",
@@ -175,6 +238,64 @@ func queryDepositsCmd(queryRoute string, cdc *codec.Codec) *cobra.Command {
 	return cmd
 }
 
+func queryUnsyncedBorrowsCmd(queryRoute string, cdc *codec.Codec) *cobra.Command {
+	cmd := &cobra.Command{
+		Use:   "unsynced-borrows",
+		Short: "query hard module unsynced borrows with optional filters",
+		Long: strings.TrimSpace(`query for all hard module unsynced borrows or a specific unsynced borrow using flags:
+
+		Example:
+		$ kvcli q hard unsynced-borrows
+		$ kvcli q hard unsynced-borrows --owner kava1l0xsq2z7gqd7yly0g40y5836g0appumark77ny
+		$ kvcli q hard unsynced-borrows --denom bnb`,
+		),
+		Args: cobra.NoArgs,
+		RunE: func(cmd *cobra.Command, args []string) error {
+			cliCtx := context.NewCLIContext().WithCodec(cdc)
+
+			var owner sdk.AccAddress
+
+			ownerBech := viper.GetString(flagOwner)
+			denom := viper.GetString(flagDenom)
+
+			if len(ownerBech) != 0 {
+				borrowOwner, err := sdk.AccAddressFromBech32(ownerBech)
+				if err != nil {
+					return err
+				}
+				owner = borrowOwner
+			}
+
+			page := viper.GetInt(flags.FlagPage)
+			limit := viper.GetInt(flags.FlagLimit)
+
+			params := types.NewQueryUnsyncedBorrowsParams(page, limit, owner, denom)
+			bz, err := cdc.MarshalJSON(params)
+			if err != nil {
+				return err
+			}
+
+			route := fmt.Sprintf("custom/%s/%s", queryRoute, types.QueryGetUnsyncedBorrows)
+			res, height, err := cliCtx.QueryWithData(route, bz)
+			if err != nil {
+				return err
+			}
+			cliCtx = cliCtx.WithHeight(height)
+
+			var borrows types.Borrows
+			if err := cdc.UnmarshalJSON(res, &borrows); err != nil {
+				return fmt.Errorf("failed to unmarshal borrows: %w", err)
+			}
+			return cliCtx.PrintOutput(borrows)
+		},
+	}
+	cmd.Flags().Int(flags.FlagPage, 1, "pagination page to query for")
+	cmd.Flags().Int(flags.FlagLimit, 100, "pagination limit (max 100)")
+	cmd.Flags().String(flagOwner, "", "(optional) filter for unsynced borrows by owner address")
+	cmd.Flags().String(flagDenom, "", "(optional) filter for unsynced borrows by denom")
+	return cmd
+}
+
 func queryBorrowsCmd(queryRoute string, cdc *codec.Codec) *cobra.Command {
 	cmd := &cobra.Command{
 		Use:   "borrows",
@@ -404,3 +525,46 @@ func queryReserves(queryRoute string, cdc *codec.Codec) *cobra.Command {
 	cmd.Flags().String(flagDenom, "", "(optional) filter reserve coins by denom")
 	return cmd
 }
+
+func queryInterestFactorsCmd(queryRoute string, cdc *codec.Codec) *cobra.Command {
+	cmd := &cobra.Command{
+		Use:   "interest-factors",
+		Short: "get current global interest factors",
+		Long: strings.TrimSpace(`get current global interest factors:
+
+		Example:
+		$ kvcli q hard interest-factors
+		$ kvcli q hard interest-factors --denom bnb`,
+		),
+		Args: cobra.NoArgs,
+		RunE: func(cmd *cobra.Command, args []string) error {
+			cliCtx := context.NewCLIContext().WithCodec(cdc)
+
+			denom := viper.GetString(flagDenom)
+
+			// Construct query with params
+			params := types.NewQueryInterestFactorsParams(denom)
+			bz, err := cdc.MarshalJSON(params)
+			if err != nil {
+				return err
+			}
+
+			// Execute query
+			route := fmt.Sprintf("custom/%s/%s", queryRoute, types.QueryGetInterestFactors)
+			res, height, err := cliCtx.QueryWithData(route, bz)
+			if err != nil {
+				return err
+			}
+			cliCtx = cliCtx.WithHeight(height)
+
+			// Decode and print results
+			var interestFactors types.InterestFactors
+			if err := cdc.UnmarshalJSON(res, &interestFactors); err != nil {
+				return fmt.Errorf("failed to unmarshal interest factors: %w", err)
+			}
+			return cliCtx.PrintOutput(interestFactors)
+		},
+	}
+	cmd.Flags().String(flagDenom, "", "(optional) filter interest factors by denom")
+	return cmd
+}

x/hard/client/rest/query.go

@@ -16,13 +16,16 @@ import (
 
 func registerQueryRoutes(cliCtx context.CLIContext, r *mux.Router) {
 	r.HandleFunc(fmt.Sprintf("/%s/parameters", types.ModuleName), queryParamsHandlerFn(cliCtx)).Methods("GET")
+	r.HandleFunc(fmt.Sprintf("/%s/unsynced-deposits", types.ModuleName), queryUnsyncedDepositsHandlerFn(cliCtx)).Methods("GET")
 	r.HandleFunc(fmt.Sprintf("/%s/deposits", types.ModuleName), queryDepositsHandlerFn(cliCtx)).Methods("GET")
 	r.HandleFunc(fmt.Sprintf("/%s/total-deposited", types.ModuleName), queryTotalDepositedHandlerFn(cliCtx)).Methods("GET")
 	r.HandleFunc(fmt.Sprintf("/%s/accounts", types.ModuleName), queryModAccountsHandlerFn(cliCtx)).Methods("GET")
+	r.HandleFunc(fmt.Sprintf("/%s/unsynced-borrows", types.ModuleName), queryUnsyncedBorrowsHandlerFn(cliCtx)).Methods("GET")
 	r.HandleFunc(fmt.Sprintf("/%s/borrows", types.ModuleName), queryBorrowsHandlerFn(cliCtx)).Methods("GET")
 	r.HandleFunc(fmt.Sprintf("/%s/total-borrowed", types.ModuleName), queryTotalBorrowedHandlerFn(cliCtx)).Methods("GET")
 	r.HandleFunc(fmt.Sprintf("/%s/interest-rate", types.ModuleName), queryInterestRateHandlerFn(cliCtx)).Methods("GET")
 	r.HandleFunc(fmt.Sprintf("/%s/reserves", types.ModuleName), queryReservesHandlerFn(cliCtx)).Methods("GET")
+	r.HandleFunc(fmt.Sprintf("/%s/interest-factors", types.ModuleName), queryInterestFactorsHandlerFn(cliCtx)).Methods("GET")
 }
 
 func queryParamsHandlerFn(cliCtx context.CLIContext) http.HandlerFunc {
@@ -93,6 +96,54 @@ func queryDepositsHandlerFn(cliCtx context.CLIContext) http.HandlerFunc {
 	}
 }
 
+func queryUnsyncedDepositsHandlerFn(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 denom string
+		var owner sdk.AccAddress
+
+		if x := r.URL.Query().Get(RestDenom); len(x) != 0 {
+			denom = strings.TrimSpace(x)
+		}
+
+		if x := r.URL.Query().Get(RestOwner); len(x) != 0 {
+			ownerStr := strings.ToLower(strings.TrimSpace(x))
+			owner, err = sdk.AccAddressFromBech32(ownerStr)
+			if err != nil {
+				rest.WriteErrorResponse(w, http.StatusBadRequest, fmt.Sprintf("cannot parse address from deposit owner %s", ownerStr))
+				return
+			}
+		}
+
+		params := types.NewQueryUnsyncedDepositsParams(page, limit, denom, owner)
+
+		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.QueryGetUnsyncedDeposits)
+		res, height, err := cliCtx.QueryWithData(route, bz)
+		cliCtx = cliCtx.WithHeight(height)
+		if err != nil {
+			rest.WriteErrorResponse(w, http.StatusInternalServerError, err.Error())
+			return
+		}
+		rest.PostProcessResponse(w, cliCtx, res)
+	}
+}
+
 func queryTotalDepositedHandlerFn(cliCtx context.CLIContext) http.HandlerFunc {
 	return func(w http.ResponseWriter, r *http.Request) {
 		_, _, _, err := rest.ParseHTTPArgsWithLimit(r, 0)
@@ -179,6 +230,54 @@ func queryBorrowsHandlerFn(cliCtx context.CLIContext) http.HandlerFunc {
 	}
 }
 
+func queryUnsyncedBorrowsHandlerFn(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 denom string
+		var owner sdk.AccAddress
+
+		if x := r.URL.Query().Get(RestDenom); len(x) != 0 {
+			denom = strings.TrimSpace(x)
+		}
+
+		if x := r.URL.Query().Get(RestOwner); len(x) != 0 {
+			ownerStr := strings.ToLower(strings.TrimSpace(x))
+			owner, err = sdk.AccAddressFromBech32(ownerStr)
+			if err != nil {
+				rest.WriteErrorResponse(w, http.StatusBadRequest, fmt.Sprintf("cannot parse address from borrow owner %s", ownerStr))
+				return
+			}
+		}
+
+		params := types.NewQueryUnsyncedBorrowsParams(page, limit, owner, denom)
+
+		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.QueryGetUnsyncedBorrows)
+		res, height, err := cliCtx.QueryWithData(route, bz)
+		cliCtx = cliCtx.WithHeight(height)
+		if err != nil {
+			rest.WriteErrorResponse(w, http.StatusInternalServerError, err.Error())
+			return
+		}
+		rest.PostProcessResponse(w, cliCtx, res)
+	}
+}
+
 func queryTotalBorrowedHandlerFn(cliCtx context.CLIContext) http.HandlerFunc {
 	return func(w http.ResponseWriter, r *http.Request) {
 		_, _, _, err := rest.ParseHTTPArgsWithLimit(r, 0)
@@ -330,3 +429,41 @@ func queryReservesHandlerFn(cliCtx context.CLIContext) http.HandlerFunc {
 		rest.PostProcessResponse(w, cliCtx, res)
 	}
 }
+
+func queryInterestFactorsHandlerFn(cliCtx context.CLIContext) http.HandlerFunc {
+	return func(w http.ResponseWriter, r *http.Request) {
+		_, _, _, 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 denom string
+
+		if x := r.URL.Query().Get(RestDenom); len(x) != 0 {
+			denom = strings.TrimSpace(x)
+		}
+
+		params := types.NewQueryInterestFactorsParams(denom)
+
+		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.QueryGetInterestFactors)
+		res, height, err := cliCtx.QueryWithData(route, bz)
+		cliCtx = cliCtx.WithHeight(height)
+		if err != nil {
+			rest.WriteErrorResponse(w, http.StatusInternalServerError, err.Error())
+			return
+		}
+		rest.PostProcessResponse(w, cliCtx, res)
+	}
+}

x/hard/keeper/keeper.go

@@ -306,6 +306,21 @@ func (k Keeper) SetBorrowInterestFactor(ctx sdk.Context, denom string, borrowInt
 	store.Set([]byte(denom), bz)
 }
 
+// IterateBorrowInterestFactors iterates over all borrow interest factors in the store and returns
+// both the borrow interest factor and the key (denom) it's stored under
+func (k Keeper) IterateBorrowInterestFactors(ctx sdk.Context, cb func(denom string, factor sdk.Dec) (stop bool)) {
+	store := prefix.NewStore(ctx.KVStore(k.key), types.BorrowInterestFactorPrefix)
+	iterator := sdk.KVStorePrefixIterator(store, []byte{})
+	defer iterator.Close()
+	for ; iterator.Valid(); iterator.Next() {
+		var factor sdk.Dec
+		k.cdc.MustUnmarshalBinaryBare(iterator.Value(), &factor)
+		if cb(string(iterator.Key()), factor) {
+			break
+		}
+	}
+}
+
 // GetSupplyInterestFactor returns the current supply interest factor for an individual market
 func (k Keeper) GetSupplyInterestFactor(ctx sdk.Context, denom string) (sdk.Dec, bool) {
 	store := prefix.NewStore(ctx.KVStore(k.key), types.SupplyInterestFactorPrefix)
@@ -324,3 +339,18 @@ func (k Keeper) SetSupplyInterestFactor(ctx sdk.Context, denom string, supplyInt
 	bz := k.cdc.MustMarshalBinaryBare(supplyInterestFactor)
 	store.Set([]byte(denom), bz)
 }
+
+// IterateSupplyInterestFactors iterates over all supply interest factors in the store and returns
+// both the supply interest factor and the key (denom) it's stored under
+func (k Keeper) IterateSupplyInterestFactors(ctx sdk.Context, cb func(denom string, factor sdk.Dec) (stop bool)) {
+	store := prefix.NewStore(ctx.KVStore(k.key), types.SupplyInterestFactorPrefix)
+	iterator := sdk.KVStorePrefixIterator(store, []byte{})
+	defer iterator.Close()
+	for ; iterator.Valid(); iterator.Next() {
+		var factor sdk.Dec
+		k.cdc.MustUnmarshalBinaryBare(iterator.Value(), &factor)
+		if cb(string(iterator.Key()), factor) {
+			break
+		}
+	}
+}

x/hard/keeper/querier.go

@@ -22,16 +22,22 @@ func NewQuerier(k Keeper) sdk.Querier {
 			return queryGetModAccounts(ctx, req, k)
 		case types.QueryGetDeposits:
 			return queryGetDeposits(ctx, req, k)
+		case types.QueryGetUnsyncedDeposits:
+			return queryGetUnsyncedDeposits(ctx, req, k)
 		case types.QueryGetTotalDeposited:
 			return queryGetTotalDeposited(ctx, req, k)
 		case types.QueryGetBorrows:
 			return queryGetBorrows(ctx, req, k)
+		case types.QueryGetUnsyncedBorrows:
+			return queryGetUnsyncedBorrows(ctx, req, k)
 		case types.QueryGetTotalBorrowed:
 			return queryGetTotalBorrowed(ctx, req, k)
 		case types.QueryGetInterestRate:
 			return queryGetInterestRate(ctx, req, k)
 		case types.QueryGetReserves:
 			return queryGetReserves(ctx, req, k)
+		case types.QueryGetInterestFactors:
+			return queryGetInterestFactors(ctx, req, k)
 		default:
 			return nil, sdkerrors.Wrapf(sdkerrors.ErrUnknownRequest, "unknown %s query endpoint", types.ModuleName)
 		}
@@ -147,6 +153,62 @@ func queryGetDeposits(ctx sdk.Context, req abci.RequestQuery, k Keeper) ([]byte,
 	return bz, nil
 }
 
+func queryGetUnsyncedDeposits(ctx sdk.Context, req abci.RequestQuery, k Keeper) ([]byte, error) {
+
+	var params types.QueryUnsyncedDepositsParams
+	err := types.ModuleCdc.UnmarshalJSON(req.Data, &params)
+	if err != nil {
+		return nil, sdkerrors.Wrap(sdkerrors.ErrJSONUnmarshal, err.Error())
+	}
+	denom := len(params.Denom) > 0
+	owner := len(params.Owner) > 0
+
+	var deposits types.Deposits
+	switch {
+	case owner && denom:
+		deposit, found := k.GetDeposit(ctx, params.Owner)
+		if found {
+			for _, coin := range deposit.Amount {
+				if coin.Denom == params.Denom {
+					deposits = append(deposits, deposit)
+				}
+			}
+		}
+	case owner:
+		deposit, found := k.GetDeposit(ctx, params.Owner)
+		if found {
+			deposits = append(deposits, deposit)
+		}
+	case denom:
+		k.IterateDeposits(ctx, func(deposit types.Deposit) (stop bool) {
+			if deposit.Amount.AmountOf(params.Denom).IsPositive() {
+				deposits = append(deposits, deposit)
+			}
+			return false
+		})
+	default:
+		k.IterateDeposits(ctx, func(deposit types.Deposit) (stop bool) {
+			deposits = append(deposits, deposit)
+			return false
+		})
+	}
+
+	var bz []byte
+
+	start, end := client.Paginate(len(deposits), params.Page, params.Limit, 100)
+	if start < 0 || end < 0 {
+		deposits = types.Deposits{}
+	} else {
+		deposits = deposits[start:end]
+	}
+
+	bz, err = codec.MarshalJSONIndent(types.ModuleCdc, deposits)
+	if err != nil {
+		return nil, sdkerrors.Wrap(sdkerrors.ErrJSONMarshal, err.Error())
+	}
+	return bz, nil
+}
+
 func queryGetBorrows(ctx sdk.Context, req abci.RequestQuery, k Keeper) ([]byte, error) {
 
 	var params types.QueryBorrowsParams
@@ -219,6 +281,62 @@ func queryGetBorrows(ctx sdk.Context, req abci.RequestQuery, k Keeper) ([]byte,
 	return bz, nil
 }
 
+func queryGetUnsyncedBorrows(ctx sdk.Context, req abci.RequestQuery, k Keeper) ([]byte, error) {
+
+	var params types.QueryUnsyncedBorrowsParams
+	err := types.ModuleCdc.UnmarshalJSON(req.Data, &params)
+	if err != nil {
+		return nil, sdkerrors.Wrap(sdkerrors.ErrJSONUnmarshal, err.Error())
+	}
+	denom := len(params.Denom) > 0
+	owner := len(params.Owner) > 0
+
+	var borrows types.Borrows
+	switch {
+	case owner && denom:
+		borrow, found := k.GetBorrow(ctx, params.Owner)
+		if found {
+			for _, coin := range borrow.Amount {
+				if coin.Denom == params.Denom {
+					borrows = append(borrows, borrow)
+				}
+			}
+		}
+	case owner:
+		borrow, found := k.GetBorrow(ctx, params.Owner)
+		if found {
+			borrows = append(borrows, borrow)
+		}
+	case denom:
+		k.IterateBorrows(ctx, func(borrow types.Borrow) (stop bool) {
+			if borrow.Amount.AmountOf(params.Denom).IsPositive() {
+				borrows = append(borrows, borrow)
+			}
+			return false
+		})
+	default:
+		k.IterateBorrows(ctx, func(borrow types.Borrow) (stop bool) {
+			borrows = append(borrows, borrow)
+			return false
+		})
+	}
+
+	var bz []byte
+
+	start, end := client.Paginate(len(borrows), params.Page, params.Limit, 100)
+	if start < 0 || end < 0 {
+		borrows = types.Borrows{}
+	} else {
+		borrows = borrows[start:end]
+	}
+
+	bz, err = codec.MarshalJSONIndent(types.ModuleCdc, borrows)
+	if err != nil {
+		return nil, sdkerrors.Wrap(sdkerrors.ErrJSONMarshal, err.Error())
+	}
+	return bz, nil
+}
+
 func queryGetTotalBorrowed(ctx sdk.Context, req abci.RequestQuery, k Keeper) ([]byte, error) {
 	var params types.QueryTotalBorrowedParams
 	err := types.ModuleCdc.UnmarshalJSON(req.Data, &params)
@@ -355,3 +473,58 @@ func queryGetReserves(ctx sdk.Context, req abci.RequestQuery, k Keeper) ([]byte,
 
 	return bz, nil
 }
+
+func queryGetInterestFactors(ctx sdk.Context, req abci.RequestQuery, k Keeper) ([]byte, error) {
+	var params types.QueryInterestFactorsParams
+	err := types.ModuleCdc.UnmarshalJSON(req.Data, &params)
+	if err != nil {
+		return nil, sdkerrors.Wrap(sdkerrors.ErrJSONUnmarshal, err.Error())
+	}
+
+	var interestFactors types.InterestFactors
+	if len(params.Denom) > 0 {
+		// Fetch supply/borrow interest factors for a single denom
+		interestFactor := types.InterestFactor{}
+		interestFactor.Denom = params.Denom
+		supplyInterestFactor, found := k.GetSupplyInterestFactor(ctx, params.Denom)
+		if found {
+			interestFactor.SupplyInterestFactor = supplyInterestFactor
+		}
+		borrowInterestFactor, found := k.GetBorrowInterestFactor(ctx, params.Denom)
+		if found {
+			interestFactor.BorrowInterestFactor = borrowInterestFactor
+		}
+		interestFactors = append(interestFactors, interestFactor)
+	} else {
+		interestFactorMap := make(map[string]types.InterestFactor)
+		// Populate mapping with supply interest factors
+		k.IterateSupplyInterestFactors(ctx, func(denom string, factor sdk.Dec) (stop bool) {
+			interestFactor := types.InterestFactor{Denom: denom, SupplyInterestFactor: factor}
+			interestFactorMap[denom] = interestFactor
+			return false
+		})
+		// Populate mapping with borrow interest factors
+		k.IterateBorrowInterestFactors(ctx, func(denom string, factor sdk.Dec) (stop bool) {
+			interestFactor, ok := interestFactorMap[denom]
+			if !ok {
+				newInterestFactor := types.InterestFactor{Denom: denom, BorrowInterestFactor: factor}
+				interestFactorMap[denom] = newInterestFactor
+			} else {
+				interestFactor.BorrowInterestFactor = factor
+				interestFactorMap[denom] = interestFactor
+			}
+			return false
+		})
+		// Translate mapping to slice
+		for _, val := range interestFactorMap {
+			interestFactors = append(interestFactors, val)
+		}
+	}
+
+	bz, err := codec.MarshalJSONIndent(types.ModuleCdc, interestFactors)
+	if err != nil {
+		return nil, sdkerrors.Wrap(sdkerrors.ErrJSONMarshal, err.Error())
+	}
+
+	return bz, nil
+}

x/hard/types/querier.go

@@ -6,14 +6,17 @@ import (
 
 // Querier routes for the hard module
 const (
-	QueryGetParams         = "params"
+	QueryGetParams           = "params"
-	QueryGetModuleAccounts = "accounts"
+	QueryGetModuleAccounts   = "accounts"
-	QueryGetDeposits       = "deposits"
+	QueryGetDeposits         = "deposits"
-	QueryGetTotalDeposited = "total-deposited"
+	QueryGetUnsyncedDeposits = "unsynced-deposits"
-	QueryGetBorrows        = "borrows"
+	QueryGetTotalDeposited   = "total-deposited"
-	QueryGetTotalBorrowed  = "total-borrowed"
+	QueryGetBorrows          = "borrows"
-	QueryGetInterestRate   = "interest-rate"
+	QueryGetUnsyncedBorrows  = "unsynced-borrows"
-	QueryGetReserves       = "reserves"
+	QueryGetTotalBorrowed    = "total-borrowed"
+	QueryGetInterestRate     = "interest-rate"
+	QueryGetReserves         = "reserves"
+	QueryGetInterestFactors  = "interest-factors"
 )
 
 // QueryDepositsParams is the params for a filtered deposit query
@@ -34,6 +37,24 @@ func NewQueryDepositsParams(page, limit int, denom string, owner sdk.AccAddress)
 	}
 }
 
+// QueryUnsyncedDepositsParams is the params for a filtered unsynced deposit query.
+type QueryUnsyncedDepositsParams struct {
+	Page  int            `json:"page" yaml:"page"`
+	Limit int            `json:"limit" yaml:"limit"`
+	Denom string         `json:"denom" yaml:"denom"`
+	Owner sdk.AccAddress `json:"owner" yaml:"owner"`
+}
+
+// NewQueryUnsyncedDepositsParams creates a new QueryUnsyncedDepositsParams
+func NewQueryUnsyncedDepositsParams(page, limit int, denom string, owner sdk.AccAddress) QueryUnsyncedDepositsParams {
+	return QueryUnsyncedDepositsParams{
+		Page:  page,
+		Limit: limit,
+		Denom: denom,
+		Owner: owner,
+	}
+}
+
 // QueryAccountParams is the params for a filtered module account query
 type QueryAccountParams struct {
 	Page  int    `json:"page" yaml:"page"`
@@ -68,6 +89,24 @@ func NewQueryBorrowsParams(page, limit int, owner sdk.AccAddress, denom string)
 	}
 }
 
+// QueryUnsyncedBorrowsParams is the params for a filtered unsynced borrows query
+type QueryUnsyncedBorrowsParams struct {
+	Page  int            `json:"page" yaml:"page"`
+	Limit int            `json:"limit" yaml:"limit"`
+	Owner sdk.AccAddress `json:"owner" yaml:"owner"`
+	Denom string         `json:"denom" yaml:"denom"`
+}
+
+// NewQueryUnsyncedBorrowsParams creates a new QueryUnsyncedBorrowsParams
+func NewQueryUnsyncedBorrowsParams(page, limit int, owner sdk.AccAddress, denom string) QueryUnsyncedBorrowsParams {
+	return QueryUnsyncedBorrowsParams{
+		Page:  page,
+		Limit: limit,
+		Owner: owner,
+		Denom: denom,
+	}
+}
+
 // QueryTotalBorrowedParams is the params for a filtered total borrowed coins query
 type QueryTotalBorrowedParams struct {
 	Denom string `json:"denom" yaml:"denom"`
@@ -134,3 +173,34 @@ func NewQueryReservesParams(denom string) QueryReservesParams {
 		Denom: denom,
 	}
 }
+
+// QueryInterestFactorsParams is the params for a filtered interest factors query
+type QueryInterestFactorsParams struct {
+	Denom string `json:"denom" yaml:"denom"`
+}
+
+// NewQueryInterestFactorsParams creates a new QueryInterestFactorsParams
+func NewQueryInterestFactorsParams(denom string) QueryInterestFactorsParams {
+	return QueryInterestFactorsParams{
+		Denom: denom,
+	}
+}
+
+// InterestFactor is a unique type returned by interest factor queries
+type InterestFactor struct {
+	Denom                string  `json:"denom" yaml:"denom"`
+	BorrowInterestFactor sdk.Dec `json:"borrow_interest_factor" yaml:"borrow_interest_factor"`
+	SupplyInterestFactor sdk.Dec `json:"supply_interest_factor" yaml:"supply_interest_factor"`
+}
+
+// NewInterestFactor returns a new instance of InterestFactor
+func NewInterestFactor(denom string, supplyInterestFactor, borrowInterestFactor sdk.Dec) InterestFactor {
+	return InterestFactor{
+		Denom:                denom,
+		SupplyInterestFactor: supplyInterestFactor,
+		BorrowInterestFactor: borrowInterestFactor,
+	}
+}
+
+// InterestFactors is a slice of InterestFactor
+type InterestFactors = []InterestFactor