Add Param Querying to x/auth

CHANGELOG.md

@@ -41,8 +41,8 @@ Ref: https://keepachangelog.com/en/1.0.0/
 
 * (modules) [\#5572](https://github.com/cosmos/cosmos-sdk/pull/5572) The `/bank/balances/{address}` endpoint now returns all account
 balances or a single balance by denom when the `denom` query parameter is present.
-* (client) [\#5640](https://github.com/cosmos/cosmos-sdk/pull/5640) The rest server endpoint `/swagger-ui/` is replaced by
-´/´.
+* (client) [\#5640](https://github.com/cosmos/cosmos-sdk/pull/5640) The rest server endpoint `/swagger-ui/` is replaced by ´/´.
+* (x/auth) [\#5702](https://github.com/cosmos/cosmos-sdk/pull/5702) The `x/auth` querier route has changed from `"acc"` to `"auth"`.
 
 ### API Breaking Changes
 
@@ -133,6 +133,7 @@ Buffers for state serialization instead of Amino.
 
 ### Improvements
 
+* (x/auth) [\#5702](https://github.com/cosmos/cosmos-sdk/pull/5702) Add parameter querying support for `x/auth`.
 * (types) [\#5581](https://github.com/cosmos/cosmos-sdk/pull/5581) Add convenience functions {,Must}Bech32ifyAddressBytes.
 * (staking) [\#5584](https://github.com/cosmos/cosmos-sdk/pull/5584) Add util function `ToTmValidator` that converts a `staking.Validator` type to `*tmtypes.Validator`.
 * (client) [\#5585](https://github.com/cosmos/cosmos-sdk/pull/5585) IBC additions:

simapp/codec/msgs.go

@@ -10,11 +10,13 @@ import (
 var _ eviexported.MsgSubmitEvidence = MsgSubmitEvidence{}
 
 // NewMsgSubmitEvidence returns a new MsgSubmitEvidence.
-func NewMsgSubmitEvidence(evidenceI eviexported.Evidence, s sdk.AccAddress) MsgSubmitEvidence {
+func NewMsgSubmitEvidence(evidenceI eviexported.Evidence, s sdk.AccAddress) (MsgSubmitEvidence, error) {
 	e := &Evidence{}
-	e.SetEvidence(evidenceI)
+	if err := e.SetEvidence(evidenceI); err != nil {
+		return MsgSubmitEvidence{}, err
+	}
 
-	return MsgSubmitEvidence{Evidence: e, MsgSubmitEvidenceBase: evidence.NewMsgSubmitEvidenceBase(s)}
+	return MsgSubmitEvidence{Evidence: e, MsgSubmitEvidenceBase: evidence.NewMsgSubmitEvidenceBase(s)}, nil
 }
 
 // ValidateBasic performs basic (non-state-dependant) validation on a

x/auth/alias.go

@@ -21,6 +21,7 @@ const (
 	DefaultSigVerifyCostED25519   = types.DefaultSigVerifyCostED25519
 	DefaultSigVerifyCostSecp256k1 = types.DefaultSigVerifyCostSecp256k1
 	QueryAccount                  = types.QueryAccount
+	QueryParams                   = types.QueryParams
 )
 
 var (

x/auth/client/cli/query.go

@@ -36,11 +36,45 @@ func GetQueryCmd(cdc *codec.Codec) *cobra.Command {
 		RunE:                       client.ValidateCmd,
 	}
 
-	cmd.AddCommand(GetAccountCmd(cdc))
+	cmd.AddCommand(
+		flags.GetCommands(
+			GetAccountCmd(cdc),
+			QueryParamsCmd(cdc),
+		)...,
+	)
 
 	return cmd
 }
 
+// QueryParamsCmd returns the command handler for evidence parameter querying.
+func QueryParamsCmd(cdc *codec.Codec) *cobra.Command {
+	return &cobra.Command{
+		Use:   "params",
+		Short: "Query the current auth parameters",
+		Args:  cobra.NoArgs,
+		Long: strings.TrimSpace(`Query the current auth parameters:
+
+$ <appcli> query auth params
+`),
+		RunE: func(cmd *cobra.Command, args []string) error {
+			cliCtx := context.NewCLIContext().WithCodec(cdc)
+
+			route := fmt.Sprintf("custom/%s/%s", types.QuerierRoute, types.QueryParams)
+			res, _, err := cliCtx.QueryWithData(route, nil)
+			if err != nil {
+				return err
+			}
+
+			var params types.Params
+			if err := cdc.UnmarshalJSON(res, &params); err != nil {
+				return fmt.Errorf("failed to unmarshal params: %w", err)
+			}
+
+			return cliCtx.PrintOutput(params)
+		},
+	}
+}
+
 // GetAccountCmd returns a query account that will display the state of the
 // account at a given address.
 func GetAccountCmd(cdc *codec.Codec) *cobra.Command {

x/auth/client/rest/query.go

@@ -138,3 +138,22 @@ func QueryTxRequestHandlerFn(cliCtx context.CLIContext) http.HandlerFunc {
 		rest.PostProcessResponseBare(w, cliCtx, output)
 	}
 }
+
+func queryParamsHandler(cliCtx context.CLIContext) http.HandlerFunc {
+	return func(w http.ResponseWriter, r *http.Request) {
+		cliCtx, ok := rest.ParseQueryHeightOrReturnBadRequest(w, cliCtx, r)
+		if !ok {
+			return
+		}
+
+		route := fmt.Sprintf("custom/%s/%s", types.QuerierRoute, types.QueryParams)
+		res, height, err := cliCtx.QueryWithData(route, nil)
+		if err != nil {
+			rest.WriteErrorResponse(w, http.StatusInternalServerError, err.Error())
+			return
+		}
+
+		cliCtx = cliCtx.WithHeight(height)
+		rest.PostProcessResponse(w, cliCtx, res)
+	}
+}

x/auth/client/rest/rest.go

@@ -6,11 +6,21 @@ import (
 	"github.com/cosmos/cosmos-sdk/client/context"
 )
 
+// REST query and parameter values
+const (
+	MethodGet = "GET"
+)
+
 // RegisterRoutes registers the auth module REST routes.
 func RegisterRoutes(cliCtx context.CLIContext, r *mux.Router, storeName string) {
 	r.HandleFunc(
 		"/auth/accounts/{address}", QueryAccountRequestHandlerFn(storeName, cliCtx),
-	).Methods("GET")
+	).Methods(MethodGet)
+
+	r.HandleFunc(
+		"/auth/params",
+		queryParamsHandler(cliCtx),
+	).Methods(MethodGet)
 }
 
 // RegisterTxRoutes registers all transaction routes on the provided router.

x/auth/keeper/querier.go

@@ -10,32 +10,47 @@ import (
 )
 
 // NewQuerier creates a querier for auth REST endpoints
-func NewQuerier(keeper AccountKeeper) sdk.Querier {
+func NewQuerier(k AccountKeeper) sdk.Querier {
 	return func(ctx sdk.Context, path []string, req abci.RequestQuery) ([]byte, error) {
 		switch path[0] {
 		case types.QueryAccount:
-			return queryAccount(ctx, req, keeper)
+			return queryAccount(ctx, req, k)
+
+		case types.QueryParams:
+			return queryParams(ctx, k)
+
 		default:
 			return nil, sdkerrors.Wrapf(sdkerrors.ErrUnknownRequest, "unknown query path: %s", path[0])
 		}
 	}
 }
 
-func queryAccount(ctx sdk.Context, req abci.RequestQuery, keeper AccountKeeper) ([]byte, error) {
+func queryAccount(ctx sdk.Context, req abci.RequestQuery, k AccountKeeper) ([]byte, error) {
 	var params types.QueryAccountParams
-	if err := keeper.cdc.UnmarshalJSON(req.Data, &params); err != nil {
+	if err := k.cdc.UnmarshalJSON(req.Data, &params); err != nil {
 		return nil, sdkerrors.Wrap(sdkerrors.ErrJSONUnmarshal, err.Error())
 	}
 
-	account := keeper.GetAccount(ctx, params.Address)
+	account := k.GetAccount(ctx, params.Address)
 	if account == nil {
 		return nil, sdkerrors.Wrapf(sdkerrors.ErrUnknownAddress, "account %s does not exist", params.Address)
 	}
 
-	bz, err := codec.MarshalJSONIndent(keeper.cdc, account)
+	bz, err := codec.MarshalJSONIndent(k.cdc, account)
 	if err != nil {
 		return nil, sdkerrors.Wrap(sdkerrors.ErrJSONMarshal, err.Error())
 	}
 
 	return bz, nil
 }
+
+func queryParams(ctx sdk.Context, k AccountKeeper) ([]byte, error) {
+	params := k.GetParams(ctx)
+
+	res, err := codec.MarshalJSONIndent(k.cdc, params)
+	if err != nil {
+		return nil, sdkerrors.Wrap(sdkerrors.ErrJSONMarshal, err.Error())
+	}
+
+	return res, nil
+}

x/auth/types/keys.go

@@ -14,8 +14,8 @@ const (
 	// FeeCollectorName the root string for the fee collector account address
 	FeeCollectorName = "fee_collector"
 
-	// QuerierRoute is the querier route for acc
-	QuerierRoute = StoreKey
+	// QuerierRoute is the querier route for auth
+	QuerierRoute = ModuleName
 )
 
 var (

x/auth/types/querier.go

@@ -7,6 +7,7 @@ import (
 // query endpoints supported by the auth Querier
 const (
 	QueryAccount = "account"
+	QueryParams  = "params"
 )
 
 // QueryAccountParams defines the params for querying accounts.

x/evidence/handler_test.go

@@ -5,6 +5,7 @@ import (
 	"testing"
 	"time"
 
+	"github.com/stretchr/testify/require"
 	"github.com/stretchr/testify/suite"
 	abci "github.com/tendermint/tendermint/abci/types"
 	"github.com/tendermint/tendermint/crypto/ed25519"
@@ -24,6 +25,12 @@ type HandlerTestSuite struct {
 	app     *simapp.SimApp
 }
 
+func testMsgSubmitEvidence(r *require.Assertions, e *types.Equivocation, s sdk.AccAddress) simappcodec.MsgSubmitEvidence {
+	msg, err := simappcodec.NewMsgSubmitEvidence(e, s)
+	r.NoError(err)
+	return msg
+}
+
 func testEquivocationHandler(k interface{}) types.Handler {
 	return func(ctx sdk.Context, e exported.Evidence) error {
 		if err := e.ValidateBasic(); err != nil {
@@ -70,7 +77,8 @@ func (suite *HandlerTestSuite) TestMsgSubmitEvidence() {
 		expectErr bool
 	}{
 		{
-			simappcodec.NewMsgSubmitEvidence(
+			testMsgSubmitEvidence(
+				suite.Require(),
 				&types.Equivocation{
 					Height:           11,
 					Time:             time.Now().UTC(),
@@ -82,7 +90,8 @@ func (suite *HandlerTestSuite) TestMsgSubmitEvidence() {
 			false,
 		},
 		{
-			simappcodec.NewMsgSubmitEvidence(
+			testMsgSubmitEvidence(
+				suite.Require(),
 				&types.Equivocation{
 					Height:           10,
 					Time:             time.Now().UTC(),

x/evidence/types/msgs_test.go

@@ -12,6 +12,12 @@ import (
 	"github.com/tendermint/tendermint/crypto/ed25519"
 )
 
+func testMsgSubmitEvidence(t *testing.T, e *types.Equivocation, s sdk.AccAddress) simappcodec.MsgSubmitEvidence {
+	msg, err := simappcodec.NewMsgSubmitEvidence(e, s)
+	require.NoError(t, err)
+	return msg
+}
+
 func TestMsgSubmitEvidence(t *testing.T) {
 	pk := ed25519.GenPrivKey()
 	submitter := sdk.AccAddress("test")
@@ -27,7 +33,7 @@ func TestMsgSubmitEvidence(t *testing.T) {
 			false,
 		},
 		{
-			simappcodec.NewMsgSubmitEvidence(&types.Equivocation{
+			testMsgSubmitEvidence(t, &types.Equivocation{
 				Height:           0,
 				Power:            100,
 				Time:             time.Now().UTC(),
@@ -37,7 +43,7 @@ func TestMsgSubmitEvidence(t *testing.T) {
 			true,
 		},
 		{
-			simappcodec.NewMsgSubmitEvidence(&types.Equivocation{
+			testMsgSubmitEvidence(t, &types.Equivocation{
 				Height:           10,
 				Power:            100,
 				Time:             time.Now().UTC(),