feat: re-add validator-vesting legacy rest endpoints (#1542)

* Re-add validator-vesting legacy rest endpoints * Add changelog entry * Re-add /vesting swagger config
2024-11-10 10:05:18 +00:00 · 2023-04-06 15:51:34 -07:00 · 2023-04-06 15:51:34 -07:00 · 23e054e402
commit 23e054e402
parent e89a37c503
9 changed files with 1566 additions and 1 deletions
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@ -34,7 +34,10 @@ Ref: https://keepachangelog.com/en/1.0.0/

 # Changelog

-**As of v0.16.2+, changes are documented in [Kava's Github Releases](https://github.com/Kava-Labs/kava/releases/).**
+## Deprecated
+
+* (x/validator-vesting) [#1542] Deprecate legacy circulating and total supply
+  rest endpoints.

 ## [v0.16.1](https://github.com/Kava-Labs/kava/releases/tag/v0.16.1)

@ -151,3 +154,5 @@ Bump tendermint version to 0.32.10 to address [cosmos security advisory Lavender
 ### Improvements

 [\#257](https://github.com/Kava-Labs/kava/pulls/257) Include scripts to run large-scale simulations remotely using aws-batch
+
+[#1542]: https://github.com/Kava-Labs/kava/pulls/1542
--- a/app/app.go
+++ b/app/app.go
@ -150,6 +150,7 @@ import (
 	swapkeeper "github.com/kava-labs/kava/x/swap/keeper"
 	swaptypes "github.com/kava-labs/kava/x/swap/types"
 	validatorvesting "github.com/kava-labs/kava/x/validator-vesting"
+	validatorvestingrest "github.com/kava-labs/kava/x/validator-vesting/client/rest"
 	validatorvestingtypes "github.com/kava-labs/kava/x/validator-vesting/types"
 )

@ -1056,6 +1057,9 @@ func (app *App) SimulationManager() *module.SimulationManager {
 func (app *App) RegisterAPIRoutes(apiSvr *api.Server, apiConfig config.APIConfig) {
 	clientCtx := apiSvr.ClientCtx

+	// Register custom REST routes
+	validatorvestingrest.RegisterRoutes(clientCtx, apiSvr.Router)
+
 	// Register GRPC Gateway routes
 	tmservice.RegisterGRPCGatewayRoutes(clientCtx, apiSvr.GRPCGatewayRouter)
 	authtx.RegisterGRPCGatewayRoutes(clientCtx, apiSvr.GRPCGatewayRouter)
--- a/client/docs/config.json
+++ b/client/docs/config.json
@ -267,6 +267,12 @@
          }
        ]
      }
+    },
+    {
+      "url": "./client/docs/legacy-swagger.yml",
+      "dereference": {
+        "circular": "ignore"
+      }
    }
  ]
 }
--- a/client/docs/legacy-swagger.yml
+++ b/client/docs/legacy-swagger.yml
@ -0,0 +1,163 @@
+---
+swagger: "2.0"
+info:
+  version: "3.0"
+  title: Kava Light Client RPC
+  description: A REST interface for state queries, transaction generation and broadcasting.
+tags:
+  - name: Vesting
+    description: Validator vesting module APIs
+schemes:
+  - https
+host: api.data.kava.io
+securityDefinitions:
+  kms:
+    type: basic
+paths:
+  /vesting/circulatingsupply:
+    get:
+      deprecated: true
+      summary: Get the current circulating supply of KAVA
+      tags:
+        - Vesting
+      produces:
+        - application/json
+      responses:
+        200:
+          description: KAVA circulating supply
+          schema:
+            properties:
+              height:
+                type: string
+                example: "100"
+              result:
+                type: string
+                example: "81443180"
+        500:
+          description: Server internal error
+  /vesting/totalsupply:
+    get:
+      deprecated: true
+      summary: Get the total supply of KAVA
+      tags:
+        - Vesting
+      produces:
+        - application/json
+      responses:
+        200:
+          description: KAVA total supply
+          schema:
+            properties:
+              height:
+                type: string
+                example: "100"
+              result:
+                type: string
+                example: "120000000"
+        500:
+          description: Server internal error
+  /vesting/circulatingsupplyhard:
+    get:
+      deprecated: true
+      summary: Get the current circulating supply of HARD
+      tags:
+        - Vesting
+      produces:
+        - application/json
+      responses:
+        200:
+          description: HARD circulating supply
+          schema:
+            properties:
+              height:
+                type: string
+                example: "100"
+              result:
+                type: string
+                example: "63750000"
+        500:
+          description: Server internal error
+  /vesting/totalsupplyhard:
+    get:
+      deprecated: true
+      summary: Get the total supply of HARD
+      tags:
+        - Vesting
+      produces:
+        - application/json
+      responses:
+        200:
+          description: HARD total supply
+          schema:
+            properties:
+              height:
+                type: string
+                example: "100"
+              result:
+                type: string
+                example: "200000000"
+        500:
+          description: Server internal error
+  /vesting/circulatingsupplyswp:
+    get:
+      deprecated: true
+      summary: Get the current circulating supply of SWP
+      tags:
+        - Vesting
+      produces:
+        - application/json
+      responses:
+        200:
+          description: SWP circulating supply
+          schema:
+            properties:
+              height:
+                type: string
+                example: "100"
+              result:
+                type: string
+                example: "63750000"
+        500:
+          description: Server internal error
+  /vesting/circulatingsupplyusdx:
+    get:
+      deprecated: true
+      summary: Get the current circulating supply of USDX
+      tags:
+        - Vesting
+      produces:
+        - application/json
+      responses:
+        200:
+          description: USDX circulating supply
+          schema:
+            properties:
+              height:
+                type: string
+                example: "100"
+              result:
+                type: string
+                example: "63750000"
+        500:
+          description: Server internal error
+  /vesting/totalsupplyusdx:
+    get:
+      deprecated: true
+      summary: Get the total supply of USDX
+      tags:
+        - Vesting
+      produces:
+        - application/json
+      responses:
+        200:
+          description: USDX total supply
+          schema:
+            properties:
+              height:
+                type: string
+                example: "100"
+              result:
+                type: string
+                example: "200000000"
+        500:
+          description: Server internal error
--- a/client/docs/swagger-ui/swagger.yaml
+++ b/client/docs/swagger-ui/swagger.yaml
@ -57868,6 +57868,153 @@ paths:
          format: boolean
      tags:
        - IBC
+  /vesting/circulatingsupply:
+    get:
+      deprecated: true
+      summary: Get the current circulating supply of KAVA
+      tags:
+        - Vesting
+      produces:
+        - application/json
+      responses:
+        '200':
+          description: KAVA circulating supply
+          schema:
+            properties:
+              height:
+                type: string
+                example: '100'
+              result:
+                type: string
+                example: '81443180'
+        '500':
+          description: Server internal error
+  /vesting/totalsupply:
+    get:
+      deprecated: true
+      summary: Get the total supply of KAVA
+      tags:
+        - Vesting
+      produces:
+        - application/json
+      responses:
+        '200':
+          description: KAVA total supply
+          schema:
+            properties:
+              height:
+                type: string
+                example: '100'
+              result:
+                type: string
+                example: '120000000'
+        '500':
+          description: Server internal error
+  /vesting/circulatingsupplyhard:
+    get:
+      deprecated: true
+      summary: Get the current circulating supply of HARD
+      tags:
+        - Vesting
+      produces:
+        - application/json
+      responses:
+        '200':
+          description: HARD circulating supply
+          schema:
+            properties:
+              height:
+                type: string
+                example: '100'
+              result:
+                type: string
+                example: '63750000'
+        '500':
+          description: Server internal error
+  /vesting/totalsupplyhard:
+    get:
+      deprecated: true
+      summary: Get the total supply of HARD
+      tags:
+        - Vesting
+      produces:
+        - application/json
+      responses:
+        '200':
+          description: HARD total supply
+          schema:
+            properties:
+              height:
+                type: string
+                example: '100'
+              result:
+                type: string
+                example: '200000000'
+        '500':
+          description: Server internal error
+  /vesting/circulatingsupplyswp:
+    get:
+      deprecated: true
+      summary: Get the current circulating supply of SWP
+      tags:
+        - Vesting
+      produces:
+        - application/json
+      responses:
+        '200':
+          description: SWP circulating supply
+          schema:
+            properties:
+              height:
+                type: string
+                example: '100'
+              result:
+                type: string
+                example: '63750000'
+        '500':
+          description: Server internal error
+  /vesting/circulatingsupplyusdx:
+    get:
+      deprecated: true
+      summary: Get the current circulating supply of USDX
+      tags:
+        - Vesting
+      produces:
+        - application/json
+      responses:
+        '200':
+          description: USDX circulating supply
+          schema:
+            properties:
+              height:
+                type: string
+                example: '100'
+              result:
+                type: string
+                example: '63750000'
+        '500':
+          description: Server internal error
+  /vesting/totalsupplyusdx:
+    get:
+      deprecated: true
+      summary: Get the total supply of USDX
+      tags:
+        - Vesting
+      produces:
+        - application/json
+      responses:
+        '200':
+          description: USDX total supply
+          schema:
+            properties:
+              height:
+                type: string
+                example: '100'
+              result:
+                type: string
+                example: '200000000'
+        '500':
+          description: Server internal error
 definitions:
  cosmos.base.query.v1beta1.PageRequest:
    type: object
@ -94634,3 +94781,6 @@ definitions:
      ready to send and receive packets.
       - STATE_CLOSED: A channel has been closed and can no longer be used to send or receive
      packets.
+securityDefinitions:
+  kms:
+    type: basic
--- a/client/rest/rest.go
+++ b/client/rest/rest.go
@ -0,0 +1,449 @@
+// Package rest provides HTTP types and primitives for REST
+// requests validation and responses handling.
+package rest
+
+import (
+	"bytes"
+	"encoding/json"
+	"errors"
+	"fmt"
+	"io"
+	"net/http"
+	"net/url"
+	"strconv"
+	"strings"
+
+	"github.com/tendermint/tendermint/types"
+
+	"github.com/cosmos/cosmos-sdk/client"
+	"github.com/cosmos/cosmos-sdk/codec"
+	"github.com/cosmos/cosmos-sdk/codec/legacy"
+	sdk "github.com/cosmos/cosmos-sdk/types"
+)
+
+const (
+	DefaultPage    = 1
+	DefaultLimit   = 30             // should be consistent with tendermint/tendermint/rpc/core/pipe.go:19
+	TxMinHeightKey = "tx.minheight" // Inclusive minimum height filter
+	TxMaxHeightKey = "tx.maxheight" // Inclusive maximum height filter
+)
+
+// ResponseWithHeight defines a response object type that wraps an original
+// response with a height.
+type ResponseWithHeight struct {
+	Height int64           `json:"height"`
+	Result json.RawMessage `json:"result"`
+}
+
+// NewResponseWithHeight creates a new ResponseWithHeight instance
+func NewResponseWithHeight(height int64, result json.RawMessage) ResponseWithHeight {
+	return ResponseWithHeight{
+		Height: height,
+		Result: result,
+	}
+}
+
+// ParseResponseWithHeight returns the raw result from a JSON-encoded
+// ResponseWithHeight object.
+func ParseResponseWithHeight(cdc *codec.LegacyAmino, bz []byte) ([]byte, error) {
+	r := ResponseWithHeight{}
+	if err := cdc.UnmarshalJSON(bz, &r); err != nil {
+		return nil, err
+	}
+
+	return r.Result, nil
+}
+
+// GasEstimateResponse defines a response definition for tx gas estimation.
+type GasEstimateResponse struct {
+	GasEstimate uint64 `json:"gas_estimate"`
+}
+
+// BaseReq defines a structure that can be embedded in other request structures
+// that all share common "base" fields.
+type BaseReq struct {
+	From          string       `json:"from"`
+	Memo          string       `json:"memo"`
+	ChainID       string       `json:"chain_id"`
+	AccountNumber uint64       `json:"account_number"`
+	Sequence      uint64       `json:"sequence"`
+	TimeoutHeight uint64       `json:"timeout_height"`
+	Fees          sdk.Coins    `json:"fees"`
+	GasPrices     sdk.DecCoins `json:"gas_prices"`
+	Gas           string       `json:"gas"`
+	GasAdjustment string       `json:"gas_adjustment"`
+	Simulate      bool         `json:"simulate"`
+}
+
+// NewBaseReq creates a new basic request instance and sanitizes its values
+func NewBaseReq(
+	from, memo, chainID string, gas, gasAdjustment string, accNumber, seq uint64,
+	fees sdk.Coins, gasPrices sdk.DecCoins, simulate bool,
+) BaseReq {
+	return BaseReq{
+		From:          strings.TrimSpace(from),
+		Memo:          strings.TrimSpace(memo),
+		ChainID:       strings.TrimSpace(chainID),
+		Fees:          fees,
+		GasPrices:     gasPrices,
+		Gas:           strings.TrimSpace(gas),
+		GasAdjustment: strings.TrimSpace(gasAdjustment),
+		AccountNumber: accNumber,
+		Sequence:      seq,
+		Simulate:      simulate,
+	}
+}
+
+// Sanitize performs basic sanitization on a BaseReq object.
+func (br BaseReq) Sanitize() BaseReq {
+	return NewBaseReq(
+		br.From, br.Memo, br.ChainID, br.Gas, br.GasAdjustment,
+		br.AccountNumber, br.Sequence, br.Fees, br.GasPrices, br.Simulate,
+	)
+}
+
+// ValidateBasic performs basic validation of a BaseReq. If custom validation
+// logic is needed, the implementing request handler should perform those
+// checks manually.
+func (br BaseReq) ValidateBasic(w http.ResponseWriter) bool {
+	if !br.Simulate {
+		switch {
+		case len(br.ChainID) == 0:
+			WriteErrorResponse(w, http.StatusUnauthorized, "chain-id required but not specified")
+			return false
+
+		case !br.Fees.IsZero() && !br.GasPrices.IsZero():
+			// both fees and gas prices were provided
+			WriteErrorResponse(w, http.StatusBadRequest, "cannot provide both fees and gas prices")
+			return false
+
+		case !br.Fees.IsValid() && !br.GasPrices.IsValid():
+			// neither fees or gas prices were provided
+			WriteErrorResponse(w, http.StatusPaymentRequired, "invalid fees or gas prices provided")
+			return false
+		}
+	}
+
+	if _, err := sdk.AccAddressFromBech32(br.From); err != nil || len(br.From) == 0 {
+		WriteErrorResponse(w, http.StatusUnauthorized, fmt.Sprintf("invalid from address: %s", br.From))
+		return false
+	}
+
+	return true
+}
+
+// ReadRESTReq reads and unmarshals a Request's body to the the BaseReq struct.
+// Writes an error response to ResponseWriter and returns false if errors occurred.
+func ReadRESTReq(w http.ResponseWriter, r *http.Request, cdc *codec.LegacyAmino, req interface{}) bool {
+	body, err := io.ReadAll(r.Body)
+	if CheckBadRequestError(w, err) {
+		return false
+	}
+
+	err = cdc.UnmarshalJSON(body, req)
+	if err != nil {
+		WriteErrorResponse(w, http.StatusBadRequest, fmt.Sprintf("failed to decode JSON payload: %s", err))
+		return false
+	}
+
+	return true
+}
+
+// ErrorResponse defines the attributes of a JSON error response.
+type ErrorResponse struct {
+	Code  int    `json:"code,omitempty"`
+	Error string `json:"error"`
+}
+
+// NewErrorResponse creates a new ErrorResponse instance.
+func NewErrorResponse(code int, err string) ErrorResponse {
+	return ErrorResponse{Code: code, Error: err}
+}
+
+// CheckError takes care of writing an error response if err is not nil.
+// Returns false when err is nil; it returns true otherwise.
+func CheckError(w http.ResponseWriter, status int, err error) bool {
+	if err != nil {
+		WriteErrorResponse(w, status, err.Error())
+		return true
+	}
+
+	return false
+}
+
+// CheckBadRequestError attaches an error message to an HTTP 400 BAD REQUEST response.
+// Returns false when err is nil; it returns true otherwise.
+func CheckBadRequestError(w http.ResponseWriter, err error) bool {
+	return CheckError(w, http.StatusBadRequest, err)
+}
+
+// CheckInternalServerError attaches an error message to an HTTP 500 INTERNAL SERVER ERROR response.
+// Returns false when err is nil; it returns true otherwise.
+func CheckInternalServerError(w http.ResponseWriter, err error) bool {
+	return CheckError(w, http.StatusInternalServerError, err)
+}
+
+// CheckNotFoundError attaches an error message to an HTTP 404 NOT FOUND response.
+// Returns false when err is nil; it returns true otherwise.
+func CheckNotFoundError(w http.ResponseWriter, err error) bool {
+	return CheckError(w, http.StatusNotFound, err)
+}
+
+// WriteErrorResponse prepares and writes a HTTP error
+// given a status code and an error message.
+func WriteErrorResponse(w http.ResponseWriter, status int, err string) {
+	w.Header().Set("Content-Type", "application/json")
+	w.WriteHeader(status)
+	_, _ = w.Write(legacy.Cdc.MustMarshalJSON(NewErrorResponse(0, err)))
+}
+
+// WriteSimulationResponse prepares and writes an HTTP
+// response for transactions simulations.
+func WriteSimulationResponse(w http.ResponseWriter, cdc *codec.LegacyAmino, gas uint64) {
+	gasEst := GasEstimateResponse{GasEstimate: gas}
+
+	resp, err := cdc.MarshalJSON(gasEst)
+	if CheckInternalServerError(w, err) {
+		return
+	}
+
+	w.Header().Set("Content-Type", "application/json")
+	w.WriteHeader(http.StatusOK)
+	_, _ = w.Write(resp)
+}
+
+// ParseUint64OrReturnBadRequest converts s to a uint64 value.
+func ParseUint64OrReturnBadRequest(w http.ResponseWriter, s string) (n uint64, ok bool) {
+	var err error
+
+	n, err = strconv.ParseUint(s, 10, 64)
+	if err != nil {
+		WriteErrorResponse(w, http.StatusBadRequest, fmt.Sprintf("'%s' is not a valid uint64", s))
+
+		return n, false
+	}
+
+	return n, true
+}
+
+// ParseFloat64OrReturnBadRequest converts s to a float64 value. It returns a
+// default value, defaultIfEmpty, if the string is empty.
+func ParseFloat64OrReturnBadRequest(w http.ResponseWriter, s string, defaultIfEmpty float64) (n float64, ok bool) {
+	if len(s) == 0 {
+		return defaultIfEmpty, true
+	}
+
+	n, err := strconv.ParseFloat(s, 64)
+	if CheckBadRequestError(w, err) {
+		return n, false
+	}
+
+	return n, true
+}
+
+// ParseQueryHeightOrReturnBadRequest sets the height to execute a query if set by the http request.
+// It returns false if there was an error parsing the height.
+func ParseQueryHeightOrReturnBadRequest(w http.ResponseWriter, clientCtx client.Context, r *http.Request) (client.Context, bool) {
+	heightStr := r.FormValue("height")
+	if heightStr != "" {
+		height, err := strconv.ParseInt(heightStr, 10, 64)
+		if CheckBadRequestError(w, err) {
+			return clientCtx, false
+		}
+
+		if height < 0 {
+			WriteErrorResponse(w, http.StatusBadRequest, "height must be equal or greater than zero")
+			return clientCtx, false
+		}
+
+		if height > 0 {
+			clientCtx = clientCtx.WithHeight(height)
+		}
+	} else {
+		clientCtx = clientCtx.WithHeight(0)
+	}
+
+	return clientCtx, true
+}
+
+// PostProcessResponseBare post processes a body similar to PostProcessResponse
+// except it does not wrap the body and inject the height.
+func PostProcessResponseBare(w http.ResponseWriter, ctx client.Context, body interface{}) {
+	var (
+		resp []byte
+		err  error
+	)
+
+	switch b := body.(type) {
+	case []byte:
+		resp = b
+
+	default:
+		resp, err = ctx.LegacyAmino.MarshalJSON(body)
+		if CheckInternalServerError(w, err) {
+			return
+		}
+	}
+
+	w.Header().Set("Content-Type", "application/json")
+	_, _ = w.Write(resp)
+}
+
+// PostProcessResponse performs post processing for a REST response. The result
+// returned to clients will contain two fields, the height at which the resource
+// was queried at and the original result.
+func PostProcessResponse(w http.ResponseWriter, ctx client.Context, resp interface{}) {
+	var (
+		result []byte
+		err    error
+	)
+
+	if ctx.Height < 0 {
+		WriteErrorResponse(w, http.StatusInternalServerError, fmt.Errorf("negative height in response").Error())
+		return
+	}
+
+	// LegacyAmino used intentionally for REST
+	marshaler := ctx.LegacyAmino
+
+	switch res := resp.(type) {
+	case []byte:
+		result = res
+
+	default:
+		result, err = marshaler.MarshalJSON(resp)
+		if CheckInternalServerError(w, err) {
+			return
+		}
+	}
+
+	wrappedResp := NewResponseWithHeight(ctx.Height, result)
+
+	output, err := marshaler.MarshalJSON(wrappedResp)
+	if CheckInternalServerError(w, err) {
+		return
+	}
+
+	w.Header().Set("Content-Type", "application/json")
+	_, _ = w.Write(output)
+}
+
+// ParseHTTPArgsWithLimit parses the request's URL and returns a slice containing
+// all arguments pairs. It separates page and limit used for pagination where a
+// default limit can be provided.
+func ParseHTTPArgsWithLimit(r *http.Request, defaultLimit int) (tags []string, page, limit int, err error) {
+	tags = make([]string, 0, len(r.Form))
+
+	for key, values := range r.Form {
+		if key == "page" || key == "limit" {
+			continue
+		}
+
+		var value string
+		value, err = url.QueryUnescape(values[0])
+
+		if err != nil {
+			return tags, page, limit, err
+		}
+
+		var tag string
+
+		switch key {
+		case types.TxHeightKey:
+			tag = fmt.Sprintf("%s=%s", key, value)
+
+		case TxMinHeightKey:
+			tag = fmt.Sprintf("%s>=%s", types.TxHeightKey, value)
+
+		case TxMaxHeightKey:
+			tag = fmt.Sprintf("%s<=%s", types.TxHeightKey, value)
+
+		default:
+			tag = fmt.Sprintf("%s='%s'", key, value)
+		}
+
+		tags = append(tags, tag)
+	}
+
+	pageStr := r.FormValue("page")
+	if pageStr == "" {
+		page = DefaultPage
+	} else {
+		page, err = strconv.Atoi(pageStr)
+		if err != nil {
+			return tags, page, limit, err
+		} else if page <= 0 {
+			return tags, page, limit, errors.New("page must greater than 0")
+		}
+	}
+
+	limitStr := r.FormValue("limit")
+	if limitStr == "" {
+		limit = defaultLimit
+	} else {
+		limit, err = strconv.Atoi(limitStr)
+		if err != nil {
+			return tags, page, limit, err
+		} else if limit <= 0 {
+			return tags, page, limit, errors.New("limit must greater than 0")
+		}
+	}
+
+	return tags, page, limit, nil
+}
+
+// ParseHTTPArgs parses the request's URL and returns a slice containing all
+// arguments pairs. It separates page and limit used for pagination.
+func ParseHTTPArgs(r *http.Request) (tags []string, page, limit int, err error) {
+	return ParseHTTPArgsWithLimit(r, DefaultLimit)
+}
+
+// ParseQueryParamBool parses the given param to a boolean. It returns false by
+// default if the string is not parseable to bool.
+func ParseQueryParamBool(r *http.Request, param string) bool {
+	if value, err := strconv.ParseBool(r.FormValue(param)); err == nil {
+		return value
+	}
+
+	return false
+}
+
+// GetRequest defines a wrapper around an HTTP GET request with a provided URL.
+// An error is returned if the request or reading the body fails.
+func GetRequest(url string) ([]byte, error) {
+	res, err := http.Get(url) //nolint:gosec
+	if err != nil {
+		return nil, err
+	}
+
+	body, err := io.ReadAll(res.Body)
+	if err != nil {
+		return nil, err
+	}
+
+	if err = res.Body.Close(); err != nil {
+		return nil, err
+	}
+
+	return body, nil
+}
+
+// PostRequest defines a wrapper around an HTTP POST request with a provided URL and data.
+// An error is returned if the request or reading the body fails.
+func PostRequest(url string, contentType string, data []byte) ([]byte, error) {
+	res, err := http.Post(url, contentType, bytes.NewBuffer(data)) //nolint:gosec
+	if err != nil {
+		return nil, fmt.Errorf("error while sending post request: %w", err)
+	}
+
+	bz, err := io.ReadAll(res.Body)
+	if err != nil {
+		return nil, fmt.Errorf("error reading response body: %w", err)
+	}
+
+	if err = res.Body.Close(); err != nil {
+		return nil, err
+	}
+
+	return bz, nil
+}
--- a/client/rest/rest_test.go
+++ b/client/rest/rest_test.go
@ -0,0 +1,461 @@
+package rest_test
+
+import (
+	"errors"
+	"io"
+	"net/http"
+	"net/http/httptest"
+	"sort"
+	"strings"
+	"testing"
+
+	"github.com/spf13/viper"
+	"github.com/stretchr/testify/require"
+
+	"github.com/cosmos/cosmos-sdk/client"
+	"github.com/cosmos/cosmos-sdk/client/flags"
+	"github.com/cosmos/cosmos-sdk/codec"
+	cryptocodec "github.com/cosmos/cosmos-sdk/crypto/codec"
+	"github.com/cosmos/cosmos-sdk/crypto/keys/secp256k1"
+	cryptotypes "github.com/cosmos/cosmos-sdk/crypto/types"
+	simappparams "github.com/cosmos/cosmos-sdk/simapp/params"
+	"github.com/cosmos/cosmos-sdk/types"
+	"github.com/kava-labs/kava/client/rest"
+)
+
+func TestBaseReq_Sanitize(t *testing.T) {
+	t.Parallel()
+	sanitized := rest.BaseReq{
+		ChainID:       "   test",
+		Memo:          "memo     ",
+		From:          " cosmos1cq0sxam6x4l0sv9yz3a2vlqhdhvt2k6jtgcse0 ",
+		Gas:           " ",
+		GasAdjustment: "  0.3",
+	}.Sanitize()
+	require.Equal(t, rest.BaseReq{
+		ChainID:       "test",
+		Memo:          "memo",
+		From:          "cosmos1cq0sxam6x4l0sv9yz3a2vlqhdhvt2k6jtgcse0",
+		Gas:           "",
+		GasAdjustment: "0.3",
+	}, sanitized)
+}
+
+func TestBaseReq_ValidateBasic(t *testing.T) {
+	fromAddr := "cosmos1cq0sxam6x4l0sv9yz3a2vlqhdhvt2k6jtgcse0"
+	tenstakes, err := types.ParseCoinsNormalized("10stake")
+	require.NoError(t, err)
+	onestake, err := types.ParseDecCoins("1.0stake")
+	require.NoError(t, err)
+
+	req1 := rest.NewBaseReq(
+		fromAddr, "", "nonempty", "", "", 0, 0, tenstakes, nil, false,
+	)
+	req2 := rest.NewBaseReq(
+		"", "", "nonempty", "", "", 0, 0, tenstakes, nil, false,
+	)
+	req3 := rest.NewBaseReq(
+		fromAddr, "", "", "", "", 0, 0, tenstakes, nil, false,
+	)
+	req4 := rest.NewBaseReq(
+		fromAddr, "", "nonempty", "", "", 0, 0, tenstakes, onestake, false,
+	)
+	req5 := rest.NewBaseReq(
+		fromAddr, "", "nonempty", "", "", 0, 0, types.Coins{}, types.DecCoins{}, false,
+	)
+
+	tests := []struct {
+		name string
+		req  rest.BaseReq
+		w    http.ResponseWriter
+		want bool
+	}{
+		{"ok", req1, httptest.NewRecorder(), true},
+		{"neither fees nor gasprices provided", req5, httptest.NewRecorder(), true},
+		{"empty from", req2, httptest.NewRecorder(), false},
+		{"empty chain-id", req3, httptest.NewRecorder(), false},
+		{"fees and gasprices provided", req4, httptest.NewRecorder(), false},
+	}
+	for _, tt := range tests {
+		tt := tt
+		t.Run(tt.name, func(t *testing.T) {
+			require.Equal(t, tt.want, tt.req.ValidateBasic(tt.w))
+		})
+	}
+}
+
+func TestParseHTTPArgs(t *testing.T) {
+	t.Parallel()
+	req0 := mustNewRequest(t, "", "/", nil)
+	req1 := mustNewRequest(t, "", "/?limit=5", nil)
+	req2 := mustNewRequest(t, "", "/?page=5", nil)
+	req3 := mustNewRequest(t, "", "/?page=5&limit=5", nil)
+
+	reqE1 := mustNewRequest(t, "", "/?page=-1", nil)
+	reqE2 := mustNewRequest(t, "", "/?limit=-1", nil)
+	req4 := mustNewRequest(t, "", "/?foo=faa", nil)
+
+	reqTxH := mustNewRequest(t, "", "/?tx.minheight=12&tx.maxheight=14", nil)
+
+	tests := []struct {
+		name  string
+		req   *http.Request
+		w     http.ResponseWriter
+		tags  []string
+		page  int
+		limit int
+		err   bool
+	}{
+		{"no params", req0, httptest.NewRecorder(), []string{}, rest.DefaultPage, rest.DefaultLimit, false},
+		{"Limit", req1, httptest.NewRecorder(), []string{}, rest.DefaultPage, 5, false},
+		{"Page", req2, httptest.NewRecorder(), []string{}, 5, rest.DefaultLimit, false},
+		{"Page and limit", req3, httptest.NewRecorder(), []string{}, 5, 5, false},
+
+		{"error page 0", reqE1, httptest.NewRecorder(), []string{}, rest.DefaultPage, rest.DefaultLimit, true},
+		{"error limit 0", reqE2, httptest.NewRecorder(), []string{}, rest.DefaultPage, rest.DefaultLimit, true},
+
+		{"tags", req4, httptest.NewRecorder(), []string{"foo='faa'"}, rest.DefaultPage, rest.DefaultLimit, false},
+		{"tags", reqTxH, httptest.NewRecorder(), []string{"tx.height<=14", "tx.height>=12"}, rest.DefaultPage, rest.DefaultLimit, false},
+	}
+	for _, tt := range tests {
+		tt := tt
+		t.Run(tt.name, func(t *testing.T) {
+			tags, page, limit, err := rest.ParseHTTPArgs(tt.req)
+
+			sort.Strings(tags)
+
+			if tt.err {
+				require.NotNil(t, err)
+			} else {
+				require.Nil(t, err)
+				require.Equal(t, tt.tags, tags)
+				require.Equal(t, tt.page, page)
+				require.Equal(t, tt.limit, limit)
+			}
+		})
+	}
+}
+
+func TestParseQueryHeight(t *testing.T) {
+	t.Parallel()
+	var emptyHeight int64
+	height := int64(1256756)
+
+	req0 := mustNewRequest(t, "", "/", nil)
+	req1 := mustNewRequest(t, "", "/?height=1256756", nil)
+	req2 := mustNewRequest(t, "", "/?height=456yui4567", nil)
+	req3 := mustNewRequest(t, "", "/?height=-1", nil)
+
+	tests := []struct {
+		name           string
+		req            *http.Request
+		w              http.ResponseWriter
+		clientCtx      client.Context
+		expectedHeight int64
+		expectedOk     bool
+	}{
+		{"no height", req0, httptest.NewRecorder(), client.Context{}, emptyHeight, true},
+		{"height", req1, httptest.NewRecorder(), client.Context{}, height, true},
+		{"invalid height", req2, httptest.NewRecorder(), client.Context{}, emptyHeight, false},
+		{"negative height", req3, httptest.NewRecorder(), client.Context{}, emptyHeight, false},
+	}
+	for _, tt := range tests {
+		tt := tt
+		t.Run(tt.name, func(t *testing.T) {
+			clientCtx, ok := rest.ParseQueryHeightOrReturnBadRequest(tt.w, tt.clientCtx, tt.req)
+			if tt.expectedOk {
+				require.True(t, ok)
+				require.Equal(t, tt.expectedHeight, clientCtx.Height)
+			} else {
+				require.False(t, ok)
+				require.Empty(t, tt.expectedHeight, clientCtx.Height)
+			}
+		})
+	}
+}
+
+func TestProcessPostResponse(t *testing.T) {
+	// mock account
+	// PubKey field ensures amino encoding is used first since standard
+	// JSON encoding will panic on cryptotypes.PubKey
+
+	t.Parallel()
+	type mockAccount struct {
+		Address       types.AccAddress   `json:"address"`
+		Coins         types.Coins        `json:"coins"`
+		PubKey        cryptotypes.PubKey `json:"public_key"`
+		AccountNumber uint64             `json:"account_number"`
+		Sequence      uint64             `json:"sequence"`
+	}
+
+	// setup
+	viper.Set(flags.FlagOffline, true)
+	ctx := client.Context{}
+	height := int64(194423)
+
+	privKey := secp256k1.GenPrivKey()
+	pubKey := privKey.PubKey()
+	addr := types.AccAddress(pubKey.Address())
+	coins := types.NewCoins(types.NewCoin("atom", types.NewInt(100)), types.NewCoin("tree", types.NewInt(125)))
+	accNumber := uint64(104)
+	sequence := uint64(32)
+
+	acc := mockAccount{addr, coins, pubKey, accNumber, sequence}
+	cdc := codec.NewLegacyAmino()
+	cryptocodec.RegisterCrypto(cdc)
+	cdc.RegisterConcrete(&mockAccount{}, "cosmos-sdk/mockAccount", nil)
+	ctx = ctx.WithLegacyAmino(cdc)
+
+	// setup expected results
+	jsonNoIndent, err := ctx.LegacyAmino.MarshalJSON(acc)
+	require.Nil(t, err)
+
+	respNoIndent := rest.NewResponseWithHeight(height, jsonNoIndent)
+	expectedNoIndent, err := ctx.LegacyAmino.MarshalJSON(respNoIndent)
+	require.Nil(t, err)
+
+	// check that negative height writes an error
+	w := httptest.NewRecorder()
+	ctx = ctx.WithHeight(-1)
+	rest.PostProcessResponse(w, ctx, acc)
+	require.Equal(t, http.StatusInternalServerError, w.Code)
+
+	// check that height returns expected response
+	ctx = ctx.WithHeight(height)
+	runPostProcessResponse(t, ctx, acc, expectedNoIndent)
+}
+
+func TestReadRESTReq(t *testing.T) {
+	t.Parallel()
+	reqBody := io.NopCloser(strings.NewReader(`{"chain_id":"alessio","memo":"text"}`))
+	req := &http.Request{Body: reqBody}
+	w := httptest.NewRecorder()
+	var br rest.BaseReq
+
+	// test OK
+	rest.ReadRESTReq(w, req, codec.NewLegacyAmino(), &br)
+	res := w.Result() //nolint:bodyclose
+	t.Cleanup(func() { res.Body.Close() })
+	require.Equal(t, rest.BaseReq{ChainID: "alessio", Memo: "text"}, br)
+	require.Equal(t, http.StatusOK, res.StatusCode)
+
+	// test non valid JSON
+	reqBody = io.NopCloser(strings.NewReader(`MALFORMED`))
+	req = &http.Request{Body: reqBody}
+	br = rest.BaseReq{}
+	w = httptest.NewRecorder()
+	rest.ReadRESTReq(w, req, codec.NewLegacyAmino(), &br)
+	require.Equal(t, br, br)
+	res = w.Result() //nolint:bodyclose
+	t.Cleanup(func() { res.Body.Close() })
+	require.Equal(t, http.StatusBadRequest, res.StatusCode)
+}
+
+func TestWriteSimulationResponse(t *testing.T) {
+	t.Parallel()
+	w := httptest.NewRecorder()
+	rest.WriteSimulationResponse(w, codec.NewLegacyAmino(), 10)
+	res := w.Result() //nolint:bodyclose
+	t.Cleanup(func() { res.Body.Close() })
+	require.Equal(t, http.StatusOK, res.StatusCode)
+	bs, err := io.ReadAll(res.Body)
+	require.NoError(t, err)
+	t.Cleanup(func() { res.Body.Close() })
+	require.Equal(t, `{"gas_estimate":"10"}`, string(bs))
+}
+
+func TestParseUint64OrReturnBadRequest(t *testing.T) {
+	t.Parallel()
+	w := httptest.NewRecorder()
+	_, ok := rest.ParseUint64OrReturnBadRequest(w, "100")
+	require.True(t, ok)
+	require.Equal(t, http.StatusOK, w.Result().StatusCode) //nolint:bodyclose
+
+	w = httptest.NewRecorder()
+	_, ok = rest.ParseUint64OrReturnBadRequest(w, "-100")
+	require.False(t, ok)
+	require.Equal(t, http.StatusBadRequest, w.Result().StatusCode) //nolint:bodyclose
+}
+
+func TestParseFloat64OrReturnBadRequest(t *testing.T) {
+	t.Parallel()
+	w := httptest.NewRecorder()
+	_, ok := rest.ParseFloat64OrReturnBadRequest(w, "100", 0)
+	require.True(t, ok)
+	require.Equal(t, http.StatusOK, w.Result().StatusCode) //nolint:bodyclose
+
+	w = httptest.NewRecorder()
+	_, ok = rest.ParseFloat64OrReturnBadRequest(w, "bad request", 0)
+	require.False(t, ok)
+	require.Equal(t, http.StatusBadRequest, w.Result().StatusCode) //nolint:bodyclose
+
+	w = httptest.NewRecorder()
+	ret, ok := rest.ParseFloat64OrReturnBadRequest(w, "", 9.0)
+	require.Equal(t, float64(9), ret)
+	require.True(t, ok)
+	require.Equal(t, http.StatusOK, w.Result().StatusCode) //nolint:bodyclose
+}
+
+func TestParseQueryParamBool(t *testing.T) {
+	req := httptest.NewRequest("GET", "/target?boolean=true", nil)
+	require.True(t, rest.ParseQueryParamBool(req, "boolean"))
+	require.False(t, rest.ParseQueryParamBool(req, "nokey"))
+	req = httptest.NewRequest("GET", "/target?boolean=false", nil)
+	require.False(t, rest.ParseQueryParamBool(req, "boolean"))
+	require.False(t, rest.ParseQueryParamBool(req, ""))
+}
+
+func TestPostProcessResponseBare(t *testing.T) {
+	t.Parallel()
+
+	encodingConfig := simappparams.MakeTestEncodingConfig()
+	clientCtx := client.Context{}.
+		WithTxConfig(encodingConfig.TxConfig).
+		WithLegacyAmino(encodingConfig.Amino) // amino used intentionally here
+	// write bytes
+	w := httptest.NewRecorder()
+	bs := []byte("text string")
+
+	rest.PostProcessResponseBare(w, clientCtx, bs)
+
+	res := w.Result() //nolint:bodyclose
+	require.Equal(t, http.StatusOK, res.StatusCode)
+
+	got, err := io.ReadAll(res.Body)
+	require.NoError(t, err)
+
+	t.Cleanup(func() { res.Body.Close() })
+	require.Equal(t, "text string", string(got))
+
+	// write struct and indent response
+	w = httptest.NewRecorder()
+	data := struct {
+		X int    `json:"x"`
+		S string `json:"s"`
+	}{X: 10, S: "test"}
+
+	rest.PostProcessResponseBare(w, clientCtx, data)
+
+	res = w.Result() //nolint:bodyclose
+	require.Equal(t, http.StatusOK, res.StatusCode)
+
+	got, err = io.ReadAll(res.Body)
+	require.NoError(t, err)
+
+	t.Cleanup(func() { res.Body.Close() })
+	require.Equal(t, "{\"x\":\"10\",\"s\":\"test\"}", string(got))
+
+	// write struct, don't indent response
+	w = httptest.NewRecorder()
+	data = struct {
+		X int    `json:"x"`
+		S string `json:"s"`
+	}{X: 10, S: "test"}
+
+	rest.PostProcessResponseBare(w, clientCtx, data)
+
+	res = w.Result() //nolint:bodyclose
+	require.Equal(t, http.StatusOK, res.StatusCode)
+
+	got, err = io.ReadAll(res.Body)
+	require.NoError(t, err)
+
+	t.Cleanup(func() { res.Body.Close() })
+	require.Equal(t, `{"x":"10","s":"test"}`, string(got))
+
+	// test marshalling failure
+	w = httptest.NewRecorder()
+	data2 := badJSONMarshaller{}
+
+	rest.PostProcessResponseBare(w, clientCtx, data2)
+
+	res = w.Result() //nolint:bodyclose
+	require.Equal(t, http.StatusInternalServerError, res.StatusCode)
+
+	got, err = io.ReadAll(res.Body)
+	require.NoError(t, err)
+
+	t.Cleanup(func() { res.Body.Close() })
+	require.Equal(t, []string{"application/json"}, res.Header["Content-Type"])
+	require.Equal(t, `{"error":"couldn't marshal"}`, string(got))
+}
+
+type badJSONMarshaller struct{}
+
+func (badJSONMarshaller) MarshalJSON() ([]byte, error) {
+	return nil, errors.New("couldn't marshal")
+}
+
+// asserts that ResponseRecorder returns the expected code and body
+// runs PostProcessResponse on the objects regular interface and on
+// the marshalled struct.
+func runPostProcessResponse(t *testing.T, ctx client.Context, obj interface{}, expectedBody []byte) {
+	// test using regular struct
+	w := httptest.NewRecorder()
+
+	rest.PostProcessResponse(w, ctx, obj)
+	require.Equal(t, http.StatusOK, w.Code, w.Body)
+
+	resp := w.Result() //nolint:bodyclose
+	t.Cleanup(func() { resp.Body.Close() })
+
+	body, err := io.ReadAll(resp.Body)
+	require.Nil(t, err)
+	require.Equal(t, expectedBody, body)
+
+	marshalled, err := ctx.LegacyAmino.MarshalJSON(obj)
+	require.NoError(t, err)
+
+	// test using marshalled struct
+	w = httptest.NewRecorder()
+	rest.PostProcessResponse(w, ctx, marshalled)
+
+	require.Equal(t, http.StatusOK, w.Code, w.Body)
+	resp = w.Result() //nolint:bodyclose
+
+	t.Cleanup(func() { resp.Body.Close() })
+	body, err = io.ReadAll(resp.Body)
+
+	require.Nil(t, err)
+	require.Equal(t, string(expectedBody), string(body))
+}
+
+func mustNewRequest(t *testing.T, method, url string, body io.Reader) *http.Request {
+	req, err := http.NewRequest(method, url, body)
+	require.NoError(t, err)
+	err = req.ParseForm()
+	require.NoError(t, err)
+	return req
+}
+
+func TestCheckErrors(t *testing.T) {
+	t.Parallel()
+	err := errors.New("ERROR")
+	tests := []struct {
+		name       string
+		checkerFn  func(w http.ResponseWriter, err error) bool
+		error      error
+		wantErr    bool
+		wantString string
+		wantStatus int
+	}{
+		{"500", rest.CheckInternalServerError, err, true, `{"error":"ERROR"}`, http.StatusInternalServerError},
+		{"500 (no error)", rest.CheckInternalServerError, nil, false, ``, http.StatusInternalServerError},
+		{"400", rest.CheckBadRequestError, err, true, `{"error":"ERROR"}`, http.StatusBadRequest},
+		{"400 (no error)", rest.CheckBadRequestError, nil, false, ``, http.StatusBadRequest},
+		{"404", rest.CheckNotFoundError, err, true, `{"error":"ERROR"}`, http.StatusNotFound},
+		{"404 (no error)", rest.CheckNotFoundError, nil, false, ``, http.StatusNotFound},
+	}
+
+	for _, tt := range tests {
+		tt := tt
+		t.Run(tt.name, func(t *testing.T) {
+			w := httptest.NewRecorder()
+			require.Equal(t, tt.wantErr, tt.checkerFn(w, tt.error))
+			if tt.wantErr {
+				require.Equal(t, w.Body.String(), tt.wantString)
+				require.Equal(t, w.Code, tt.wantStatus)
+			}
+		})
+	}
+}
--- a/x/validator-vesting/client/rest/query.go
+++ b/x/validator-vesting/client/rest/query.go
@ -0,0 +1,315 @@
+package rest
+
+import (
+	"encoding/json"
+	"fmt"
+	"net/http"
+
+	"github.com/gorilla/mux"
+
+	"github.com/cosmos/cosmos-sdk/client"
+	"github.com/kava-labs/kava/client/rest"
+
+	"github.com/kava-labs/kava/x/validator-vesting/types"
+)
+
+func registerQueryRoutes(cliCtx client.Context, r *mux.Router) {
+	r.HandleFunc(fmt.Sprintf("/%s/circulatingsupply", types.QueryPath), getCirculatingSupplyHandlerFn(cliCtx)).Methods("GET")
+	r.HandleFunc(fmt.Sprintf("/%s/totalsupply", types.QueryPath), getTotalSupplyHandlerFn(cliCtx)).Methods("GET")
+	r.HandleFunc(fmt.Sprintf("/%s/circulatingsupplyhard", types.QueryPath), getCirculatingSupplyHARDHandlerFn(cliCtx)).Methods("GET")
+	r.HandleFunc(fmt.Sprintf("/%s/circulatingsupplyusdx", types.QueryPath), getCirculatingSupplyUSDXHandlerFn(cliCtx)).Methods("GET")
+	r.HandleFunc(fmt.Sprintf("/%s/circulatingsupplyswp", types.QueryPath), getCirculatingSupplySWPHandlerFn(cliCtx)).Methods("GET")
+	r.HandleFunc(fmt.Sprintf("/%s/totalsupplyhard", types.QueryPath), getTotalSupplyHARDHandlerFn(cliCtx)).Methods("GET")
+	r.HandleFunc(fmt.Sprintf("/%s/totalsupplyusdx", types.QueryPath), getTotalSupplyUSDXHandlerFn(cliCtx)).Methods("GET")
+}
+
+func getTotalSupplyHandlerFn(cliCtx client.Context) 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
+		}
+
+		cliCtx, ok := rest.ParseQueryHeightOrReturnBadRequest(w, cliCtx, r)
+		if !ok {
+			return
+		}
+
+		params := types.NewBaseQueryParams(page, limit)
+		bz, err := cliCtx.LegacyAmino.MarshalJSON(params)
+		if err != nil {
+			rest.WriteErrorResponse(w, http.StatusBadRequest, fmt.Sprintf("failed to marshal query params: %s", err))
+			return
+		}
+
+		route := fmt.Sprintf("custom/%s/%s", types.QuerierRoute, types.QueryTotalSupply)
+		res, _, err := cliCtx.QueryWithData(route, bz)
+		if err != nil {
+			rest.WriteErrorResponse(w, http.StatusInternalServerError, err.Error())
+			return
+		}
+		var totalSupply int64
+		err = cliCtx.LegacyAmino.UnmarshalJSON(res, &totalSupply)
+		if err != nil {
+			rest.WriteErrorResponse(w, http.StatusInternalServerError, err.Error())
+			return
+		}
+		resBytes, err := json.Marshal(totalSupply)
+		if err != nil {
+			rest.WriteErrorResponse(w, http.StatusInternalServerError, err.Error())
+			return
+		}
+		w.Write(resBytes)
+	}
+}
+
+func getCirculatingSupplyHandlerFn(cliCtx client.Context) 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
+		}
+
+		cliCtx, ok := rest.ParseQueryHeightOrReturnBadRequest(w, cliCtx, r)
+		if !ok {
+			return
+		}
+
+		params := types.NewBaseQueryParams(page, limit)
+		bz, err := cliCtx.LegacyAmino.MarshalJSON(params)
+		if err != nil {
+			rest.WriteErrorResponse(w, http.StatusBadRequest, fmt.Sprintf("failed to marshal query params: %s", err))
+			return
+		}
+
+		route := fmt.Sprintf("custom/%s/%s", types.QuerierRoute, types.QueryCirculatingSupply)
+		res, _, err := cliCtx.QueryWithData(route, bz)
+		if err != nil {
+			rest.WriteErrorResponse(w, http.StatusInternalServerError, err.Error())
+			return
+		}
+
+		var circSupply int64
+		err = cliCtx.LegacyAmino.UnmarshalJSON(res, &circSupply)
+		if err != nil {
+			rest.WriteErrorResponse(w, http.StatusInternalServerError, err.Error())
+			return
+		}
+		resBytes, err := json.Marshal(circSupply)
+		if err != nil {
+			rest.WriteErrorResponse(w, http.StatusInternalServerError, err.Error())
+			return
+		}
+		w.Write(resBytes)
+	}
+}
+
+func getCirculatingSupplyHARDHandlerFn(cliCtx client.Context) 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
+		}
+
+		cliCtx, ok := rest.ParseQueryHeightOrReturnBadRequest(w, cliCtx, r)
+		if !ok {
+			return
+		}
+
+		params := types.NewBaseQueryParams(page, limit)
+		bz, err := cliCtx.LegacyAmino.MarshalJSON(params)
+		if err != nil {
+			rest.WriteErrorResponse(w, http.StatusBadRequest, fmt.Sprintf("failed to marshal query params: %s", err))
+			return
+		}
+
+		route := fmt.Sprintf("custom/%s/%s", types.QuerierRoute, types.QueryCirculatingSupplyHARD)
+		res, _, err := cliCtx.QueryWithData(route, bz)
+		if err != nil {
+			rest.WriteErrorResponse(w, http.StatusInternalServerError, err.Error())
+			return
+		}
+
+		var circSupply int64
+		err = cliCtx.LegacyAmino.UnmarshalJSON(res, &circSupply)
+		if err != nil {
+			rest.WriteErrorResponse(w, http.StatusInternalServerError, err.Error())
+			return
+		}
+		resBytes, err := json.Marshal(circSupply)
+		if err != nil {
+			rest.WriteErrorResponse(w, http.StatusInternalServerError, err.Error())
+			return
+		}
+		w.Write(resBytes)
+	}
+}
+
+func getCirculatingSupplyUSDXHandlerFn(cliCtx client.Context) 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
+		}
+
+		cliCtx, ok := rest.ParseQueryHeightOrReturnBadRequest(w, cliCtx, r)
+		if !ok {
+			return
+		}
+
+		params := types.NewBaseQueryParams(page, limit)
+		bz, err := cliCtx.LegacyAmino.MarshalJSON(params)
+		if err != nil {
+			rest.WriteErrorResponse(w, http.StatusBadRequest, fmt.Sprintf("failed to marshal query params: %s", err))
+			return
+		}
+
+		route := fmt.Sprintf("custom/%s/%s", types.QuerierRoute, types.QueryCirculatingSupplyUSDX)
+		res, _, err := cliCtx.QueryWithData(route, bz)
+		if err != nil {
+			rest.WriteErrorResponse(w, http.StatusInternalServerError, err.Error())
+			return
+		}
+
+		var circSupply int64
+		err = cliCtx.LegacyAmino.UnmarshalJSON(res, &circSupply)
+		if err != nil {
+			rest.WriteErrorResponse(w, http.StatusInternalServerError, err.Error())
+			return
+		}
+		resBytes, err := json.Marshal(circSupply)
+		if err != nil {
+			rest.WriteErrorResponse(w, http.StatusInternalServerError, err.Error())
+			return
+		}
+		w.Write(resBytes)
+	}
+}
+
+func getCirculatingSupplySWPHandlerFn(cliCtx client.Context) 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
+		}
+
+		cliCtx, ok := rest.ParseQueryHeightOrReturnBadRequest(w, cliCtx, r)
+		if !ok {
+			return
+		}
+
+		params := types.NewBaseQueryParams(page, limit)
+		bz, err := cliCtx.LegacyAmino.MarshalJSON(params)
+		if err != nil {
+			rest.WriteErrorResponse(w, http.StatusBadRequest, fmt.Sprintf("failed to marshal query params: %s", err))
+			return
+		}
+
+		route := fmt.Sprintf("custom/%s/%s", types.QuerierRoute, types.QueryCirculatingSupplySWP)
+		res, _, err := cliCtx.QueryWithData(route, bz)
+		if err != nil {
+			rest.WriteErrorResponse(w, http.StatusInternalServerError, err.Error())
+			return
+		}
+
+		var circSupply int64
+		err = cliCtx.LegacyAmino.UnmarshalJSON(res, &circSupply)
+		if err != nil {
+			rest.WriteErrorResponse(w, http.StatusInternalServerError, err.Error())
+			return
+		}
+		resBytes, err := json.Marshal(circSupply)
+		if err != nil {
+			rest.WriteErrorResponse(w, http.StatusInternalServerError, err.Error())
+			return
+		}
+		w.Write(resBytes)
+	}
+}
+
+func getTotalSupplyHARDHandlerFn(cliCtx client.Context) 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
+		}
+
+		cliCtx, ok := rest.ParseQueryHeightOrReturnBadRequest(w, cliCtx, r)
+		if !ok {
+			return
+		}
+
+		params := types.NewBaseQueryParams(page, limit)
+		bz, err := cliCtx.LegacyAmino.MarshalJSON(params)
+		if err != nil {
+			rest.WriteErrorResponse(w, http.StatusBadRequest, fmt.Sprintf("failed to marshal query params: %s", err))
+			return
+		}
+
+		route := fmt.Sprintf("custom/%s/%s", types.QuerierRoute, types.QueryTotalSupplyHARD)
+		res, _, err := cliCtx.QueryWithData(route, bz)
+		if err != nil {
+			rest.WriteErrorResponse(w, http.StatusInternalServerError, err.Error())
+			return
+		}
+		var totalSupply int64
+		err = cliCtx.LegacyAmino.UnmarshalJSON(res, &totalSupply)
+		if err != nil {
+			rest.WriteErrorResponse(w, http.StatusInternalServerError, err.Error())
+			return
+		}
+		resBytes, err := json.Marshal(totalSupply)
+		if err != nil {
+			rest.WriteErrorResponse(w, http.StatusInternalServerError, err.Error())
+			return
+		}
+		w.Write(resBytes)
+	}
+}
+
+func getTotalSupplyUSDXHandlerFn(cliCtx client.Context) 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
+		}
+
+		cliCtx, ok := rest.ParseQueryHeightOrReturnBadRequest(w, cliCtx, r)
+		if !ok {
+			return
+		}
+
+		params := types.NewBaseQueryParams(page, limit)
+		bz, err := cliCtx.LegacyAmino.MarshalJSON(params)
+		if err != nil {
+			rest.WriteErrorResponse(w, http.StatusBadRequest, fmt.Sprintf("failed to marshal query params: %s", err))
+			return
+		}
+
+		route := fmt.Sprintf("custom/%s/%s", types.QuerierRoute, types.QueryTotalSupplyUSDX)
+		res, _, err := cliCtx.QueryWithData(route, bz)
+		if err != nil {
+			rest.WriteErrorResponse(w, http.StatusInternalServerError, err.Error())
+			return
+		}
+		var totalSupply int64
+		err = cliCtx.LegacyAmino.UnmarshalJSON(res, &totalSupply)
+		if err != nil {
+			rest.WriteErrorResponse(w, http.StatusInternalServerError, err.Error())
+			return
+		}
+		resBytes, err := json.Marshal(totalSupply)
+		if err != nil {
+			rest.WriteErrorResponse(w, http.StatusInternalServerError, err.Error())
+			return
+		}
+		w.Write(resBytes)
+	}
+}
--- a/x/validator-vesting/client/rest/rest.go
+++ b/x/validator-vesting/client/rest/rest.go
@ -0,0 +1,12 @@
+package rest
+
+import (
+	"github.com/gorilla/mux"
+
+	"github.com/cosmos/cosmos-sdk/client"
+)
+
+// RegisterRoutes registers kavadist-related REST handlers to a router
+func RegisterRoutes(cliCtx client.Context, rtr *mux.Router) {
+	registerQueryRoutes(cliCtx, rtr)
+}