From 95ac8307a4fef60c1c38b5797e7aa40ed6ad6776 Mon Sep 17 00:00:00 2001
From: "mergify[bot]" <37929162+mergify[bot]@users.noreply.github.com>
Date: Tue, 21 May 2024 15:55:29 +0900
Subject: [PATCH] feat: add new query to get a swap (backport #1387) (#1389)

* feat: add new query to get a swap (#1387)

* feat: add new query to get a swap

* chore: update changelog

* fix: add missing pagination param in cli client

* chore: lint fix

* chore: add grpc-query test

* chore: add descriptive message for invalid QuerySwapRequest

* chore: add CLI to query swap

(cherry picked from commit 92ad6753032179c706fd525cc6d1444ccd9b9579)

# Conflicts:
#	client/docs/swagger-ui/swagger.yaml

* chore: fix conflict

---------

Co-authored-by: jaeseung-bae <119839167+jaeseung-bae@users.noreply.github.com>
---
 CHANGELOG.md                               |   1 +
 client/docs/config.json                    |   3 +
 client/docs/swagger-ui/swagger.yaml        | 432 +++++++++++++++++
 docs/core/proto-docs.md                    |  34 ++
 proto/lbm/fswap/v1/query.proto             |  12 +
 x/fswap/client/cli/query.go                |  43 +-
 x/fswap/keeper/grpc_query.go               |  17 +
 x/fswap/keeper/grpc_query_test.go          | 121 +++++
 x/fswap/testutil/expected_keepers_mocks.go |  25 +-
 x/fswap/types/msgs.go                      |  20 +
 x/fswap/types/msgs_test.go                 |  52 +++
 x/fswap/types/query.pb.go                  | 514 +++++++++++++++++++--
 x/fswap/types/query.pb.gw.go               |  80 ++++
 13 files changed, 1299 insertions(+), 55 deletions(-)
 create mode 100644 x/fswap/keeper/grpc_query_test.go

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 86218264bd..3f7d6bc0d4 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -53,6 +53,7 @@ Ref: https://keepachangelog.com/en/1.0.0/
 * (x/fbridge) [\#1366](https://github.com/Finschia/finschia-sdk/pull/1366) Set target denom as module parameters
 * (x/fbridge) [\#1369](https://github.com/Finschia/finschia-sdk/pull/1369) Add the event of `SetBridgeStatus`
 * (x/fswap) [\#1372](https://github.com/Finschia/finschia-sdk/pull/1372) support message based proposals
+* (x/fswap) [\#1387](https://github.com/Finschia/finschia-sdk/pull/1387) add new Swap query to get a single swap
 
 ### Bug Fixes
 * (x/auth) [#1281](https://github.com/Finschia/finschia-sdk/pull/1281) `ModuleAccount.Validate` now reports a nil `.BaseAccount` instead of panicking. (backport #1274)
diff --git a/client/docs/config.json b/client/docs/config.json
index 97cd452052..ee02885ceb 100644
--- a/client/docs/config.json
+++ b/client/docs/config.json
@@ -205,6 +205,9 @@
           "Vote": "FBridgeVote"
         }
       }
+    },
+    {
+      "url": "./tmp-swagger-gen/lbm/fswap/v1/query.swagger.json"
     }
   ]
 }
diff --git a/client/docs/swagger-ui/swagger.yaml b/client/docs/swagger-ui/swagger.yaml
index 1a91dd4742..571b868dbd 100644
--- a/client/docs/swagger-ui/swagger.yaml
+++ b/client/docs/swagger-ui/swagger.yaml
@@ -35312,6 +35312,330 @@ paths:
                       format: byte
       tags:
         - Query
+  /lbm/fswap/v1/swap:
+    get:
+      summary: Swap queries a swap
+      operationId: Swap
+      responses:
+        '200':
+          description: A successful response.
+          schema:
+            type: object
+            properties:
+              swap:
+                type: object
+                properties:
+                  from_denom:
+                    type: string
+                  to_denom:
+                    type: string
+                  amount_cap_for_to_denom:
+                    type: string
+                  swap_rate:
+                    type: string
+        default:
+          description: An unexpected error response
+          schema:
+            type: object
+            properties:
+              error:
+                type: string
+              code:
+                type: integer
+                format: int32
+              message:
+                type: string
+              details:
+                type: array
+                items:
+                  type: object
+                  properties:
+                    type_url:
+                      type: string
+                    value:
+                      type: string
+                      format: byte
+      parameters:
+        - name: fromDenom
+          in: query
+          required: false
+          type: string
+        - name: toDenom
+          in: query
+          required: false
+          type: string
+      tags:
+        - Query
+  /lbm/fswap/v1/swapped:
+    get:
+      summary: >-
+        Swapped queries the current swapped status that includes a burnt amount
+        of from-coin and a minted amount of
+
+        to-coin.
+      operationId: Swapped
+      responses:
+        '200':
+          description: A successful response.
+          schema:
+            type: object
+            properties:
+              from_coin_amount:
+                type: object
+                properties:
+                  denom:
+                    type: string
+                  amount:
+                    type: string
+                description: >-
+                  Coin defines a token with a denomination and an amount.
+
+
+                  NOTE: The amount field is an Int which implements the custom
+                  method
+
+                  signatures required by gogoproto.
+              to_coin_amount:
+                type: object
+                properties:
+                  denom:
+                    type: string
+                  amount:
+                    type: string
+                description: >-
+                  Coin defines a token with a denomination and an amount.
+
+
+                  NOTE: The amount field is an Int which implements the custom
+                  method
+
+                  signatures required by gogoproto.
+        default:
+          description: An unexpected error response
+          schema:
+            type: object
+            properties:
+              error:
+                type: string
+              code:
+                type: integer
+                format: int32
+              message:
+                type: string
+              details:
+                type: array
+                items:
+                  type: object
+                  properties:
+                    type_url:
+                      type: string
+                    value:
+                      type: string
+                      format: byte
+      parameters:
+        - name: fromDenom
+          in: query
+          required: false
+          type: string
+        - name: toDenom
+          in: query
+          required: false
+          type: string
+      tags:
+        - Query
+  /lbm/fswap/v1/swaps:
+    get:
+      summary: Swaps queries all the swap that registered
+      operationId: Swaps
+      responses:
+        '200':
+          description: A successful response.
+          schema:
+            type: object
+            properties:
+              swaps:
+                type: array
+                items:
+                  type: object
+                  properties:
+                    from_denom:
+                      type: string
+                    to_denom:
+                      type: string
+                    amount_cap_for_to_denom:
+                      type: string
+                    swap_rate:
+                      type: string
+              pagination:
+                type: object
+                properties:
+                  next_key:
+                    type: string
+                    format: byte
+                    title: |-
+                      next_key is the key to be passed to PageRequest.key to
+                      query the next page most efficiently
+                  total:
+                    type: string
+                    format: uint64
+                    title: >-
+                      total is total number of results available if
+                      PageRequest.count_total
+
+                      was set, its value is undefined otherwise
+                description: >-
+                  PageResponse is to be embedded in gRPC response messages where
+                  the
+
+                  corresponding request message has used PageRequest.
+
+                   message SomeResponse {
+                           repeated Bar results = 1;
+                           PageResponse page = 2;
+                   }
+        default:
+          description: An unexpected error response
+          schema:
+            type: object
+            properties:
+              error:
+                type: string
+              code:
+                type: integer
+                format: int32
+              message:
+                type: string
+              details:
+                type: array
+                items:
+                  type: object
+                  properties:
+                    type_url:
+                      type: string
+                    value:
+                      type: string
+                      format: byte
+      parameters:
+        - name: pagination.key
+          description: |-
+            key is a value returned in PageResponse.next_key to begin
+            querying the next page most efficiently. Only one of offset or key
+            should be set.
+          in: query
+          required: false
+          type: string
+          format: byte
+        - name: pagination.offset
+          description: >-
+            offset is a numeric offset that can be used when key is unavailable.
+
+            It is less efficient than using key. Only one of offset or key
+            should
+
+            be set.
+          in: query
+          required: false
+          type: string
+          format: uint64
+        - name: pagination.limit
+          description: >-
+            limit is the total number of results to be returned in the result
+            page.
+
+            If left empty it will default to a value to be set by each app.
+          in: query
+          required: false
+          type: string
+          format: uint64
+        - name: pagination.count_total
+          description: >-
+            count_total is set to true  to indicate that the result set should
+            include
+
+            a count of the total number of items available for pagination in
+            UIs.
+
+            count_total is only respected when offset is used. It is ignored
+            when key
+
+            is set.
+          in: query
+          required: false
+          type: boolean
+          format: boolean
+        - name: pagination.reverse
+          description: >-
+            reverse is set to true if results are to be returned in the
+            descending order.
+
+
+            Since: cosmos-sdk 0.43
+          in: query
+          required: false
+          type: boolean
+          format: boolean
+      tags:
+        - Query
+  /lbm/fswap/v1/total_swappable_to_coin_amount:
+    get:
+      summary: >-
+        TotalSwappableToCoinAmount queries the current swappable amount for
+        to-coin.
+      operationId: TotalSwappableToCoinAmount
+      responses:
+        '200':
+          description: A successful response.
+          schema:
+            type: object
+            properties:
+              swappable_amount:
+                type: object
+                properties:
+                  denom:
+                    type: string
+                  amount:
+                    type: string
+                description: >-
+                  Coin defines a token with a denomination and an amount.
+
+
+                  NOTE: The amount field is an Int which implements the custom
+                  method
+
+                  signatures required by gogoproto.
+        default:
+          description: An unexpected error response
+          schema:
+            type: object
+            properties:
+              error:
+                type: string
+              code:
+                type: integer
+                format: int32
+              message:
+                type: string
+              details:
+                type: array
+                items:
+                  type: object
+                  properties:
+                    type_url:
+                      type: string
+                    value:
+                      type: string
+                      format: byte
+      parameters:
+        - name: fromDenom
+          in: query
+          required: false
+          type: string
+        - name: toDenom
+          in: query
+          required: false
+          type: string
+      tags:
+        - Query
 definitions:
   cosmos.auth.v1beta1.Params:
     type: object
@@ -59561,3 +59885,111 @@ definitions:
        - VOTE_OPTION_UNSPECIFIED: VOTE_OPTION_UNSPECIFIED defines a no-op vote option.
        - VOTE_OPTION_YES: VOTE_OPTION_YES defines a yes vote option.
        - VOTE_OPTION_NO: VOTE_OPTION_NO defines a no vote option.
+  lbm.fswap.v1.QuerySwapResponse:
+    type: object
+    properties:
+      swap:
+        type: object
+        properties:
+          from_denom:
+            type: string
+          to_denom:
+            type: string
+          amount_cap_for_to_denom:
+            type: string
+          swap_rate:
+            type: string
+  lbm.fswap.v1.QuerySwappedResponse:
+    type: object
+    properties:
+      from_coin_amount:
+        type: object
+        properties:
+          denom:
+            type: string
+          amount:
+            type: string
+        description: |-
+          Coin defines a token with a denomination and an amount.
+
+          NOTE: The amount field is an Int which implements the custom method
+          signatures required by gogoproto.
+      to_coin_amount:
+        type: object
+        properties:
+          denom:
+            type: string
+          amount:
+            type: string
+        description: |-
+          Coin defines a token with a denomination and an amount.
+
+          NOTE: The amount field is an Int which implements the custom method
+          signatures required by gogoproto.
+  lbm.fswap.v1.QuerySwapsResponse:
+    type: object
+    properties:
+      swaps:
+        type: array
+        items:
+          type: object
+          properties:
+            from_denom:
+              type: string
+            to_denom:
+              type: string
+            amount_cap_for_to_denom:
+              type: string
+            swap_rate:
+              type: string
+      pagination:
+        type: object
+        properties:
+          next_key:
+            type: string
+            format: byte
+            title: |-
+              next_key is the key to be passed to PageRequest.key to
+              query the next page most efficiently
+          total:
+            type: string
+            format: uint64
+            title: >-
+              total is total number of results available if
+              PageRequest.count_total
+
+              was set, its value is undefined otherwise
+        description: |-
+          PageResponse is to be embedded in gRPC response messages where the
+          corresponding request message has used PageRequest.
+
+           message SomeResponse {
+                   repeated Bar results = 1;
+                   PageResponse page = 2;
+           }
+  lbm.fswap.v1.QueryTotalSwappableToCoinAmountResponse:
+    type: object
+    properties:
+      swappable_amount:
+        type: object
+        properties:
+          denom:
+            type: string
+          amount:
+            type: string
+        description: |-
+          Coin defines a token with a denomination and an amount.
+
+          NOTE: The amount field is an Int which implements the custom method
+          signatures required by gogoproto.
+  lbm.fswap.v1.Swap:
+    type: object
+    properties:
+      from_denom:
+        type: string
+      to_denom:
+        type: string
+      amount_cap_for_to_denom:
+        type: string
+      swap_rate:
+        type: string
diff --git a/docs/core/proto-docs.md b/docs/core/proto-docs.md
index 8ac2e922b3..32205add25 100644
--- a/docs/core/proto-docs.md
+++ b/docs/core/proto-docs.md
@@ -991,6 +991,8 @@
     - [GenesisState](#lbm.fswap.v1.GenesisState)
   
 - [lbm/fswap/v1/query.proto](#lbm/fswap/v1/query.proto)
+    - [QuerySwapRequest](#lbm.fswap.v1.QuerySwapRequest)
+    - [QuerySwapResponse](#lbm.fswap.v1.QuerySwapResponse)
     - [QuerySwappedRequest](#lbm.fswap.v1.QuerySwappedRequest)
     - [QuerySwappedResponse](#lbm.fswap.v1.QuerySwappedResponse)
     - [QuerySwapsRequest](#lbm.fswap.v1.QuerySwapsRequest)
@@ -14717,6 +14719,37 @@ GenesisState defines the fswap module's genesis state.
 
 
 
+<a name="lbm.fswap.v1.QuerySwapRequest"></a>
+
+### QuerySwapRequest
+
+
+
+| Field | Type | Label | Description |
+| ----- | ---- | ----- | ----------- |
+| `fromDenom` | [string](#string) |  |  |
+| `toDenom` | [string](#string) |  |  |
+
+
+
+
+
+
+<a name="lbm.fswap.v1.QuerySwapResponse"></a>
+
+### QuerySwapResponse
+
+
+
+| Field | Type | Label | Description |
+| ----- | ---- | ----- | ----------- |
+| `swap` | [Swap](#lbm.fswap.v1.Swap) |  |  |
+
+
+
+
+
+
 <a name="lbm.fswap.v1.QuerySwappedRequest"></a>
 
 ### QuerySwappedRequest
@@ -14826,6 +14859,7 @@ GenesisState defines the fswap module's genesis state.
 | ----------- | ------------ | ------------- | ------------| ------- | -------- |
 | `Swapped` | [QuerySwappedRequest](#lbm.fswap.v1.QuerySwappedRequest) | [QuerySwappedResponse](#lbm.fswap.v1.QuerySwappedResponse) | Swapped queries the current swapped status that includes a burnt amount of from-coin and a minted amount of to-coin. | GET|/lbm/fswap/v1/swapped|
 | `TotalSwappableToCoinAmount` | [QueryTotalSwappableToCoinAmountRequest](#lbm.fswap.v1.QueryTotalSwappableToCoinAmountRequest) | [QueryTotalSwappableToCoinAmountResponse](#lbm.fswap.v1.QueryTotalSwappableToCoinAmountResponse) | TotalSwappableToCoinAmount queries the current swappable amount for to-coin. | GET|/lbm/fswap/v1/total_swappable_to_coin_amount|
+| `Swap` | [QuerySwapRequest](#lbm.fswap.v1.QuerySwapRequest) | [QuerySwapResponse](#lbm.fswap.v1.QuerySwapResponse) | Swap queries a swap | GET|/lbm/fswap/v1/swap|
 | `Swaps` | [QuerySwapsRequest](#lbm.fswap.v1.QuerySwapsRequest) | [QuerySwapsResponse](#lbm.fswap.v1.QuerySwapsResponse) | Swaps queries all the swap that registered | GET|/lbm/fswap/v1/swaps|
 
  <!-- end services -->
diff --git a/proto/lbm/fswap/v1/query.proto b/proto/lbm/fswap/v1/query.proto
index a2a88b7093..e5fa09168b 100644
--- a/proto/lbm/fswap/v1/query.proto
+++ b/proto/lbm/fswap/v1/query.proto
@@ -20,6 +20,10 @@ service Query {
       returns (QueryTotalSwappableToCoinAmountResponse) {
     option (google.api.http).get = "/lbm/fswap/v1/total_swappable_to_coin_amount";
   }
+  // Swap queries a swap
+  rpc Swap(QuerySwapRequest) returns (QuerySwapResponse) {
+    option (google.api.http).get = "/lbm/fswap/v1/swap";
+  }
   // Swaps queries all the swap that registered
   rpc Swaps(QuerySwapsRequest) returns (QuerySwapsResponse) {
     option (google.api.http).get = "/lbm/fswap/v1/swaps";
@@ -46,6 +50,14 @@ message QueryTotalSwappableToCoinAmountResponse {
       [(gogoproto.nullable) = false, (gogoproto.castrepeated) = "github.com/Finschia/finschia-sdk/types.Coin"];
 }
 
+message QuerySwapRequest {
+  string fromDenom = 1;
+  string toDenom   = 2;
+}
+message QuerySwapResponse {
+  Swap swap = 1 [(gogoproto.nullable) = false];
+}
+
 message QuerySwapsRequest {
   cosmos.base.query.v1beta1.PageRequest pagination = 1;
 }
diff --git a/x/fswap/client/cli/query.go b/x/fswap/client/cli/query.go
index 46c87aa868..723e5200ec 100644
--- a/x/fswap/client/cli/query.go
+++ b/x/fswap/client/cli/query.go
@@ -24,6 +24,7 @@ func GetQueryCmd(queryRoute string) *cobra.Command {
 	cmd.AddCommand(
 		CmdQuerySwapped(),
 		CmdQueryTotalSwappableAmount(),
+		CmdQuerySwap(),
 		CmdQuerySwaps(),
 	)
 	return cmd
@@ -86,10 +87,40 @@ func CmdQueryTotalSwappableAmount() *cobra.Command {
 	return cmd
 }
 
+func CmdQuerySwap() *cobra.Command {
+	cmd := &cobra.Command{
+		Use:   "swap [from_denom] [to_denom]",
+		Short: "shows a swap",
+		Args:  cobra.ExactArgs(2),
+		RunE: func(cmd *cobra.Command, args []string) error {
+			clientCtx, err := client.GetClientQueryContext(cmd)
+			if err != nil {
+				return err
+			}
+			queryClient := types.NewQueryClient(clientCtx)
+
+			req := &types.QuerySwapRequest{
+				FromDenom: args[0],
+				ToDenom:   args[1],
+			}
+
+			res, err := queryClient.Swap(cmd.Context(), req)
+			if err != nil {
+				return err
+			}
+
+			return clientCtx.PrintProto(res)
+		},
+	}
+
+	flags.AddQueryFlagsToCmd(cmd)
+	return cmd
+}
+
 func CmdQuerySwaps() *cobra.Command {
 	cmd := &cobra.Command{
 		Use:   "swaps",
-		Short: "shows the all the swaps that proposed",
+		Short: "shows the all the swaps",
 		Args:  cobra.NoArgs,
 		RunE: func(cmd *cobra.Command, args []string) error {
 			clientCtx, err := client.GetClientQueryContext(cmd)
@@ -98,7 +129,15 @@ func CmdQuerySwaps() *cobra.Command {
 			}
 			queryClient := types.NewQueryClient(clientCtx)
 
-			res, err := queryClient.Swaps(cmd.Context(), &types.QuerySwapsRequest{})
+			pageReq, err := client.ReadPageRequest(cmd.Flags())
+			if err != nil {
+				return err
+			}
+
+			req := &types.QuerySwapsRequest{
+				Pagination: pageReq,
+			}
+			res, err := queryClient.Swaps(cmd.Context(), req)
 			if err != nil {
 				return err
 			}
diff --git a/x/fswap/keeper/grpc_query.go b/x/fswap/keeper/grpc_query.go
index 8e2e94a5e2..ba888d6e4d 100644
--- a/x/fswap/keeper/grpc_query.go
+++ b/x/fswap/keeper/grpc_query.go
@@ -3,6 +3,9 @@ package keeper
 import (
 	"context"
 
+	"google.golang.org/grpc/codes"
+	"google.golang.org/grpc/status"
+
 	"github.com/Finschia/finschia-sdk/store/prefix"
 	sdk "github.com/Finschia/finschia-sdk/types"
 	sdkerrors "github.com/Finschia/finschia-sdk/types/errors"
@@ -59,6 +62,20 @@ func (s QueryServer) TotalSwappableToCoinAmount(ctx context.Context, req *types.
 	return &types.QueryTotalSwappableToCoinAmountResponse{SwappableAmount: amount}, nil
 }
 
+func (s QueryServer) Swap(ctx context.Context, req *types.QuerySwapRequest) (*types.QuerySwapResponse, error) {
+	if err := req.Validate(); err != nil {
+		return nil, err
+	}
+
+	c := sdk.UnwrapSDKContext(ctx)
+	swap, err := s.Keeper.getSwap(c, req.GetFromDenom(), req.GetToDenom())
+	if err != nil {
+		return nil, status.Error(codes.NotFound, err.Error())
+	}
+
+	return &types.QuerySwapResponse{Swap: swap}, nil
+}
+
 func (s QueryServer) Swaps(ctx context.Context, req *types.QuerySwapsRequest) (*types.QuerySwapsResponse, error) {
 	c := sdk.UnwrapSDKContext(ctx)
 
diff --git a/x/fswap/keeper/grpc_query_test.go b/x/fswap/keeper/grpc_query_test.go
new file mode 100644
index 0000000000..f141459d09
--- /dev/null
+++ b/x/fswap/keeper/grpc_query_test.go
@@ -0,0 +1,121 @@
+package keeper_test
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/suite"
+	tmproto "github.com/tendermint/tendermint/proto/tendermint/types"
+	"google.golang.org/grpc/codes"
+	"google.golang.org/grpc/status"
+
+	"github.com/Finschia/finschia-sdk/baseapp"
+	"github.com/Finschia/finschia-sdk/simapp"
+	sdk "github.com/Finschia/finschia-sdk/types"
+	bank "github.com/Finschia/finschia-sdk/x/bank/types"
+	"github.com/Finschia/finschia-sdk/x/fswap/keeper"
+	"github.com/Finschia/finschia-sdk/x/fswap/types"
+)
+
+func TestFSwapQueryTestSuite(t *testing.T) {
+	suite.Run(t, &FSwapQueryTestSuite{})
+}
+
+type FSwapQueryTestSuite struct {
+	suite.Suite
+
+	app             *simapp.SimApp
+	ctx             sdk.Context
+	queryClient     types.QueryClient
+	keeper          keeper.Keeper
+	swap            types.Swap
+	toDenomMetadata bank.Metadata
+	fromDenom       string
+	toDenom         string
+}
+
+func (s *FSwapQueryTestSuite) SetupTest() {
+	s.app = simapp.Setup(false)
+	s.ctx = s.app.BaseApp.NewContext(false, tmproto.Header{})
+
+	queryHelper := baseapp.NewQueryServerTestHelper(s.ctx, s.app.InterfaceRegistry())
+	types.RegisterQueryServer(queryHelper, keeper.NewQueryServer(s.app.FswapKeeper))
+	s.queryClient = types.NewQueryClient(queryHelper)
+	s.keeper = s.app.FswapKeeper
+
+	pebSwapRateForCony, err := sdk.NewDecFromStr("148079656000000")
+	s.Require().NoError(err)
+	swapCap := sdk.NewInt(1000)
+	s.Require().NoError(err)
+	s.fromDenom = "cony"
+	s.toDenom = "kei"
+	s.swap = types.Swap{
+		FromDenom:           s.fromDenom,
+		ToDenom:             s.toDenom,
+		AmountCapForToDenom: swapCap,
+		SwapRate:            pebSwapRateForCony,
+	}
+	s.toDenomMetadata = bank.Metadata{
+		Description: "This is metadata for to-coin",
+		DenomUnits: []*bank.DenomUnit{
+			{Denom: s.swap.ToDenom, Exponent: 0},
+		},
+		Base:    s.toDenom,
+		Display: "dummycoin",
+		Name:    "DUMMY",
+		Symbol:  "DUM",
+	}
+
+	err = s.keeper.SetSwap(s.ctx, s.swap, s.toDenomMetadata)
+	s.Require().NoError(err)
+}
+
+func (s *FSwapQueryTestSuite) TestQuerySwapRequest() {
+	tests := []struct {
+		name             string
+		FromDenom        string
+		ToDenom          string
+		wantErr          bool
+		expectedGrpcCode codes.Code
+	}{
+		{
+			name:             "valid",
+			FromDenom:        s.fromDenom,
+			ToDenom:          s.toDenom,
+			wantErr:          false,
+			expectedGrpcCode: codes.OK,
+		},
+		{
+			name:             "invalid: empty fromDenom",
+			FromDenom:        "",
+			ToDenom:          s.toDenom,
+			wantErr:          true,
+			expectedGrpcCode: codes.InvalidArgument,
+		},
+		{
+			name:             "invalid: empty toDenom",
+			FromDenom:        s.fromDenom,
+			ToDenom:          "",
+			wantErr:          true,
+			expectedGrpcCode: codes.InvalidArgument,
+		},
+		{
+			name:             "invalid: the same fromDenom and toDenom",
+			FromDenom:        s.fromDenom,
+			ToDenom:          s.fromDenom,
+			wantErr:          true,
+			expectedGrpcCode: codes.InvalidArgument,
+		},
+	}
+	for _, tc := range tests {
+		s.Run(tc.name, func() {
+			m := &types.QuerySwapRequest{
+				FromDenom: tc.FromDenom,
+				ToDenom:   tc.ToDenom,
+			}
+
+			_, err := s.queryClient.Swap(s.ctx.Context(), m)
+			actualGrpcCode := status.Code(err)
+			s.Require().Equal(tc.expectedGrpcCode, actualGrpcCode, actualGrpcCode.String())
+		})
+	}
+}
diff --git a/x/fswap/testutil/expected_keepers_mocks.go b/x/fswap/testutil/expected_keepers_mocks.go
index 8718d93937..27cbf452b7 100644
--- a/x/fswap/testutil/expected_keepers_mocks.go
+++ b/x/fswap/testutil/expected_keepers_mocks.go
@@ -7,9 +7,8 @@ package testutil
 import (
 	reflect "reflect"
 
-	types "github.com/Finschia/finschia-sdk/snapshots/types"
-	types0 "github.com/Finschia/finschia-sdk/types"
-	types1 "github.com/Finschia/finschia-sdk/x/bank/types"
+	types "github.com/Finschia/finschia-sdk/types"
+	types0 "github.com/Finschia/finschia-sdk/x/bank/types"
 	gomock "github.com/golang/mock/gomock"
 )
 
@@ -37,7 +36,7 @@ func (m *MockBankKeeper) EXPECT() *MockBankKeeperMockRecorder {
 }
 
 // BurnCoins mocks base method.
-func (m *MockBankKeeper) BurnCoins(ctx types0.Context, moduleName string, amt types0.Coins) error {
+func (m *MockBankKeeper) BurnCoins(ctx types.Context, moduleName string, amt types.Coins) error {
 	m.ctrl.T.Helper()
 	ret := m.ctrl.Call(m, "BurnCoins", ctx, moduleName, amt)
 	ret0, _ := ret[0].(error)
@@ -51,10 +50,10 @@ func (mr *MockBankKeeperMockRecorder) BurnCoins(ctx, moduleName, amt interface{}
 }
 
 // GetBalance mocks base method.
-func (m *MockBankKeeper) GetBalance(ctx types0.Context, addr types0.AccAddress, denom string) types0.Coin {
+func (m *MockBankKeeper) GetBalance(ctx types.Context, addr types.AccAddress, denom string) types.Coin {
 	m.ctrl.T.Helper()
 	ret := m.ctrl.Call(m, "GetBalance", ctx, addr, denom)
-	ret0, _ := ret[0].(types0.Coin)
+	ret0, _ := ret[0].(types.Coin)
 	return ret0
 }
 
@@ -65,10 +64,10 @@ func (mr *MockBankKeeperMockRecorder) GetBalance(ctx, addr, denom interface{}) *
 }
 
 // GetDenomMetaData mocks base method.
-func (m *MockBankKeeper) GetDenomMetaData(ctx types0.Context, denom string) (types.Metadata, bool) {
+func (m *MockBankKeeper) GetDenomMetaData(ctx types.Context, denom string) (types0.Metadata, bool) {
 	m.ctrl.T.Helper()
 	ret := m.ctrl.Call(m, "GetDenomMetaData", ctx, denom)
-	ret0, _ := ret[0].(types.Metadata)
+	ret0, _ := ret[0].(types0.Metadata)
 	ret1, _ := ret[1].(bool)
 	return ret0, ret1
 }
@@ -80,7 +79,7 @@ func (mr *MockBankKeeperMockRecorder) GetDenomMetaData(ctx, denom interface{}) *
 }
 
 // IsSendEnabledCoins mocks base method.
-func (m *MockBankKeeper) IsSendEnabledCoins(ctx types0.Context, coins ...types0.Coin) error {
+func (m *MockBankKeeper) IsSendEnabledCoins(ctx types.Context, coins ...types.Coin) error {
 	m.ctrl.T.Helper()
 	varargs := []interface{}{ctx}
 	for _, a := range coins {
@@ -99,7 +98,7 @@ func (mr *MockBankKeeperMockRecorder) IsSendEnabledCoins(ctx interface{}, coins
 }
 
 // MintCoins mocks base method.
-func (m *MockBankKeeper) MintCoins(ctx types0.Context, moduleName string, amt types0.Coins) error {
+func (m *MockBankKeeper) MintCoins(ctx types.Context, moduleName string, amt types.Coins) error {
 	m.ctrl.T.Helper()
 	ret := m.ctrl.Call(m, "MintCoins", ctx, moduleName, amt)
 	ret0, _ := ret[0].(error)
@@ -113,7 +112,7 @@ func (mr *MockBankKeeperMockRecorder) MintCoins(ctx, moduleName, amt interface{}
 }
 
 // SendCoinsFromAccountToModule mocks base method.
-func (m *MockBankKeeper) SendCoinsFromAccountToModule(ctx types0.Context, senderAddr types0.AccAddress, recipientModule string, amt types0.Coins) error {
+func (m *MockBankKeeper) SendCoinsFromAccountToModule(ctx types.Context, senderAddr types.AccAddress, recipientModule string, amt types.Coins) error {
 	m.ctrl.T.Helper()
 	ret := m.ctrl.Call(m, "SendCoinsFromAccountToModule", ctx, senderAddr, recipientModule, amt)
 	ret0, _ := ret[0].(error)
@@ -127,7 +126,7 @@ func (mr *MockBankKeeperMockRecorder) SendCoinsFromAccountToModule(ctx, senderAd
 }
 
 // SendCoinsFromModuleToAccount mocks base method.
-func (m *MockBankKeeper) SendCoinsFromModuleToAccount(ctx types0.Context, senderModule string, recipientAddr types0.AccAddress, amt types0.Coins) error {
+func (m *MockBankKeeper) SendCoinsFromModuleToAccount(ctx types.Context, senderModule string, recipientAddr types.AccAddress, amt types.Coins) error {
 	m.ctrl.T.Helper()
 	ret := m.ctrl.Call(m, "SendCoinsFromModuleToAccount", ctx, senderModule, recipientAddr, amt)
 	ret0, _ := ret[0].(error)
@@ -141,7 +140,7 @@ func (mr *MockBankKeeperMockRecorder) SendCoinsFromModuleToAccount(ctx, senderMo
 }
 
 // SetDenomMetaData mocks base method.
-func (m *MockBankKeeper) SetDenomMetaData(ctx types0.Context, denomMetaData types1.Metadata) {
+func (m *MockBankKeeper) SetDenomMetaData(ctx types.Context, denomMetaData types0.Metadata) {
 	m.ctrl.T.Helper()
 	m.ctrl.Call(m, "SetDenomMetaData", ctx, denomMetaData)
 }
diff --git a/x/fswap/types/msgs.go b/x/fswap/types/msgs.go
index f8ca3407c2..5e71738fa9 100644
--- a/x/fswap/types/msgs.go
+++ b/x/fswap/types/msgs.go
@@ -1,6 +1,9 @@
 package types
 
 import (
+	"google.golang.org/grpc/codes"
+	"google.golang.org/grpc/status"
+
 	sdk "github.com/Finschia/finschia-sdk/types"
 	sdkerrors "github.com/Finschia/finschia-sdk/types/errors"
 	"github.com/Finschia/finschia-sdk/x/foundation/codec"
@@ -141,3 +144,20 @@ func (m *MsgSetSwap) Route() string {
 func (m *MsgSetSwap) GetSignBytes() []byte {
 	return sdk.MustSortJSON(ModuleCdc.MustMarshalJSON(m))
 }
+
+func (m *QuerySwapRequest) Validate() error {
+	if m == nil {
+		return status.Error(codes.InvalidArgument, "empty QuerySwapRequest is not allowed")
+	}
+	if m.GetFromDenom() == m.GetToDenom() {
+		return status.Error(codes.InvalidArgument, "fromDenom and toDenom cannot be the same")
+	}
+
+	if m.GetFromDenom() == "" {
+		return status.Error(codes.InvalidArgument, "from denom is empty")
+	}
+	if m.GetToDenom() == "" {
+		return status.Error(codes.InvalidArgument, "to denom is empty")
+	}
+	return nil
+}
diff --git a/x/fswap/types/msgs_test.go b/x/fswap/types/msgs_test.go
index 1ae1c71636..eb5611f858 100644
--- a/x/fswap/types/msgs_test.go
+++ b/x/fswap/types/msgs_test.go
@@ -4,6 +4,8 @@ import (
 	"testing"
 
 	"github.com/stretchr/testify/require"
+	"google.golang.org/grpc/codes"
+	"google.golang.org/grpc/status"
 
 	sdk "github.com/Finschia/finschia-sdk/types"
 	"github.com/Finschia/finschia-sdk/x/auth/legacy/legacytx"
@@ -83,3 +85,53 @@ func TestAminoJSON(t *testing.T) {
 		})
 	}
 }
+
+func TestQuerySwapRequestValidate(t *testing.T) {
+	tests := []struct {
+		name             string
+		FromDenom        string
+		ToDenom          string
+		wantErr          bool
+		expectedGrpcCode codes.Code
+	}{
+		{
+			name:             "valid",
+			FromDenom:        "cony",
+			ToDenom:          "peb",
+			wantErr:          false,
+			expectedGrpcCode: codes.OK,
+		},
+		{
+			name:             "invalid: empty fromDenom",
+			FromDenom:        "",
+			ToDenom:          "peb",
+			wantErr:          true,
+			expectedGrpcCode: codes.InvalidArgument,
+		},
+		{
+			name:             "invalid: empty toDenom",
+			FromDenom:        "cony",
+			ToDenom:          "",
+			wantErr:          true,
+			expectedGrpcCode: codes.InvalidArgument,
+		},
+		{
+			name:             "invalid: the same fromDenom and toDenom",
+			FromDenom:        "cony",
+			ToDenom:          "cony",
+			wantErr:          true,
+			expectedGrpcCode: codes.InvalidArgument,
+		},
+	}
+	for _, tc := range tests {
+		t.Run(tc.name, func(t *testing.T) {
+			m := &fswaptypes.QuerySwapRequest{
+				FromDenom: tc.FromDenom,
+				ToDenom:   tc.ToDenom,
+			}
+			err := m.Validate()
+			actualGrpcCode := status.Code(err)
+			require.Equal(t, tc.expectedGrpcCode, actualGrpcCode)
+		})
+	}
+}
diff --git a/x/fswap/types/query.pb.go b/x/fswap/types/query.pb.go
index 80beb5195a..7f5685ac75 100644
--- a/x/fswap/types/query.pb.go
+++ b/x/fswap/types/query.pb.go
@@ -235,6 +235,102 @@ func (m *QueryTotalSwappableToCoinAmountResponse) GetSwappableAmount() types.Coi
 	return types.Coin{}
 }
 
+type QuerySwapRequest struct {
+	FromDenom string `protobuf:"bytes,1,opt,name=fromDenom,proto3" json:"fromDenom,omitempty"`
+	ToDenom   string `protobuf:"bytes,2,opt,name=toDenom,proto3" json:"toDenom,omitempty"`
+}
+
+func (m *QuerySwapRequest) Reset()         { *m = QuerySwapRequest{} }
+func (m *QuerySwapRequest) String() string { return proto.CompactTextString(m) }
+func (*QuerySwapRequest) ProtoMessage()    {}
+func (*QuerySwapRequest) Descriptor() ([]byte, []int) {
+	return fileDescriptor_01deae9da7816d6a, []int{4}
+}
+func (m *QuerySwapRequest) XXX_Unmarshal(b []byte) error {
+	return m.Unmarshal(b)
+}
+func (m *QuerySwapRequest) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
+	if deterministic {
+		return xxx_messageInfo_QuerySwapRequest.Marshal(b, m, deterministic)
+	} else {
+		b = b[:cap(b)]
+		n, err := m.MarshalToSizedBuffer(b)
+		if err != nil {
+			return nil, err
+		}
+		return b[:n], nil
+	}
+}
+func (m *QuerySwapRequest) XXX_Merge(src proto.Message) {
+	xxx_messageInfo_QuerySwapRequest.Merge(m, src)
+}
+func (m *QuerySwapRequest) XXX_Size() int {
+	return m.Size()
+}
+func (m *QuerySwapRequest) XXX_DiscardUnknown() {
+	xxx_messageInfo_QuerySwapRequest.DiscardUnknown(m)
+}
+
+var xxx_messageInfo_QuerySwapRequest proto.InternalMessageInfo
+
+func (m *QuerySwapRequest) GetFromDenom() string {
+	if m != nil {
+		return m.FromDenom
+	}
+	return ""
+}
+
+func (m *QuerySwapRequest) GetToDenom() string {
+	if m != nil {
+		return m.ToDenom
+	}
+	return ""
+}
+
+type QuerySwapResponse struct {
+	Swap Swap `protobuf:"bytes,1,opt,name=swap,proto3" json:"swap"`
+}
+
+func (m *QuerySwapResponse) Reset()         { *m = QuerySwapResponse{} }
+func (m *QuerySwapResponse) String() string { return proto.CompactTextString(m) }
+func (*QuerySwapResponse) ProtoMessage()    {}
+func (*QuerySwapResponse) Descriptor() ([]byte, []int) {
+	return fileDescriptor_01deae9da7816d6a, []int{5}
+}
+func (m *QuerySwapResponse) XXX_Unmarshal(b []byte) error {
+	return m.Unmarshal(b)
+}
+func (m *QuerySwapResponse) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
+	if deterministic {
+		return xxx_messageInfo_QuerySwapResponse.Marshal(b, m, deterministic)
+	} else {
+		b = b[:cap(b)]
+		n, err := m.MarshalToSizedBuffer(b)
+		if err != nil {
+			return nil, err
+		}
+		return b[:n], nil
+	}
+}
+func (m *QuerySwapResponse) XXX_Merge(src proto.Message) {
+	xxx_messageInfo_QuerySwapResponse.Merge(m, src)
+}
+func (m *QuerySwapResponse) XXX_Size() int {
+	return m.Size()
+}
+func (m *QuerySwapResponse) XXX_DiscardUnknown() {
+	xxx_messageInfo_QuerySwapResponse.DiscardUnknown(m)
+}
+
+var xxx_messageInfo_QuerySwapResponse proto.InternalMessageInfo
+
+func (m *QuerySwapResponse) GetSwap() Swap {
+	if m != nil {
+		return m.Swap
+	}
+	return Swap{}
+}
+
 type QuerySwapsRequest struct {
 	Pagination *query.PageRequest `protobuf:"bytes,1,opt,name=pagination,proto3" json:"pagination,omitempty"`
 }
@@ -243,7 +339,7 @@ func (m *QuerySwapsRequest) Reset()         { *m = QuerySwapsRequest{} }
 func (m *QuerySwapsRequest) String() string { return proto.CompactTextString(m) }
 func (*QuerySwapsRequest) ProtoMessage()    {}
 func (*QuerySwapsRequest) Descriptor() ([]byte, []int) {
-	return fileDescriptor_01deae9da7816d6a, []int{4}
+	return fileDescriptor_01deae9da7816d6a, []int{6}
 }
 func (m *QuerySwapsRequest) XXX_Unmarshal(b []byte) error {
 	return m.Unmarshal(b)
@@ -288,7 +384,7 @@ func (m *QuerySwapsResponse) Reset()         { *m = QuerySwapsResponse{} }
 func (m *QuerySwapsResponse) String() string { return proto.CompactTextString(m) }
 func (*QuerySwapsResponse) ProtoMessage()    {}
 func (*QuerySwapsResponse) Descriptor() ([]byte, []int) {
-	return fileDescriptor_01deae9da7816d6a, []int{5}
+	return fileDescriptor_01deae9da7816d6a, []int{7}
 }
 func (m *QuerySwapsResponse) XXX_Unmarshal(b []byte) error {
 	return m.Unmarshal(b)
@@ -336,6 +432,8 @@ func init() {
 	proto.RegisterType((*QuerySwappedResponse)(nil), "lbm.fswap.v1.QuerySwappedResponse")
 	proto.RegisterType((*QueryTotalSwappableToCoinAmountRequest)(nil), "lbm.fswap.v1.QueryTotalSwappableToCoinAmountRequest")
 	proto.RegisterType((*QueryTotalSwappableToCoinAmountResponse)(nil), "lbm.fswap.v1.QueryTotalSwappableToCoinAmountResponse")
+	proto.RegisterType((*QuerySwapRequest)(nil), "lbm.fswap.v1.QuerySwapRequest")
+	proto.RegisterType((*QuerySwapResponse)(nil), "lbm.fswap.v1.QuerySwapResponse")
 	proto.RegisterType((*QuerySwapsRequest)(nil), "lbm.fswap.v1.QuerySwapsRequest")
 	proto.RegisterType((*QuerySwapsResponse)(nil), "lbm.fswap.v1.QuerySwapsResponse")
 }
@@ -343,44 +441,47 @@ func init() {
 func init() { proto.RegisterFile("lbm/fswap/v1/query.proto", fileDescriptor_01deae9da7816d6a) }
 
 var fileDescriptor_01deae9da7816d6a = []byte{
-	// 590 bytes of a gzipped FileDescriptorProto
-	0x1f, 0x8b, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0xff, 0xb4, 0x94, 0xcf, 0x6e, 0xd3, 0x4e,
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-	0x61, 0x9d, 0x6e, 0x5c, 0x8b, 0xd8, 0xe3, 0x66, 0x37, 0x69, 0x73, 0xe5, 0xc0, 0x0d, 0x09, 0x89,
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-	0x7f, 0x05, 0x00, 0x00, 0xff, 0xff, 0x4e, 0x87, 0x53, 0x1d, 0x08, 0x06, 0x00, 0x00,
+	// 630 bytes of a gzipped FileDescriptorProto
+	0x1f, 0x8b, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0xff, 0xb4, 0x55, 0x41, 0x6f, 0xd3, 0x30,
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+	0xa7, 0xc7, 0xfc, 0x27, 0x34, 0x60, 0x7e, 0xc5, 0xa8, 0x19, 0xf7, 0x66, 0x9b, 0x93, 0x0f, 0xb0,
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+	0x54, 0x28, 0xfb, 0x6d, 0x82, 0x82, 0xc7, 0x7e, 0xb6, 0x00, 0x98, 0xac, 0x94, 0x26, 0x5a, 0x4e,
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+	0xed, 0xb3, 0x20, 0x91, 0x8e, 0x7d, 0xe7, 0xc3, 0xcf, 0x7f, 0x5f, 0xf3, 0x37, 0xe1, 0x22, 0x4e,
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+	0x62, 0x3e, 0x3a, 0x67, 0x97, 0xb6, 0xba, 0xa1, 0xac, 0x22, 0xb8, 0x9a, 0xb6, 0x2a, 0x64, 0x67,
+	0x6b, 0xb2, 0x17, 0xe9, 0x57, 0x02, 0xb6, 0x41, 0x41, 0xd2, 0x42, 0x2b, 0x23, 0x8c, 0xd8, 0x54,
+	0x35, 0xb3, 0xae, 0xe5, 0x4d, 0x25, 0x5f, 0x86, 0xf0, 0x64, 0x52, 0xd0, 0x05, 0x45, 0x35, 0x2b,
+	0x30, 0x8b, 0x25, 0x9e, 0x51, 0xb3, 0x96, 0x0d, 0xd0, 0x3a, 0xb7, 0x95, 0xce, 0x22, 0x5c, 0x38,
+	0xa9, 0xc3, 0x1b, 0xcf, 0x0e, 0x47, 0x96, 0x71, 0x34, 0xb2, 0x8c, 0xbf, 0x23, 0xcb, 0xf8, 0x32,
+	0xb6, 0x72, 0x47, 0x63, 0x2b, 0xf7, 0x6b, 0x6c, 0xe5, 0xde, 0xa0, 0xa9, 0xeb, 0x7d, 0xa0, 0xc9,
+	0xd4, 0x9a, 0x3b, 0x57, 0xd5, 0x1f, 0xc7, 0xfa, 0xff, 0x00, 0x00, 0x00, 0xff, 0xff, 0x92, 0x88,
+	0x7c, 0xcc, 0xfc, 0x06, 0x00, 0x00,
 }
 
 // Reference imports to suppress errors if they are not otherwise used.
@@ -400,6 +501,8 @@ type QueryClient interface {
 	Swapped(ctx context.Context, in *QuerySwappedRequest, opts ...grpc.CallOption) (*QuerySwappedResponse, error)
 	// TotalSwappableToCoinAmount queries the current swappable amount for to-coin.
 	TotalSwappableToCoinAmount(ctx context.Context, in *QueryTotalSwappableToCoinAmountRequest, opts ...grpc.CallOption) (*QueryTotalSwappableToCoinAmountResponse, error)
+	// Swap queries a swap
+	Swap(ctx context.Context, in *QuerySwapRequest, opts ...grpc.CallOption) (*QuerySwapResponse, error)
 	// Swaps queries all the swap that registered
 	Swaps(ctx context.Context, in *QuerySwapsRequest, opts ...grpc.CallOption) (*QuerySwapsResponse, error)
 }
@@ -430,6 +533,15 @@ func (c *queryClient) TotalSwappableToCoinAmount(ctx context.Context, in *QueryT
 	return out, nil
 }
 
+func (c *queryClient) Swap(ctx context.Context, in *QuerySwapRequest, opts ...grpc.CallOption) (*QuerySwapResponse, error) {
+	out := new(QuerySwapResponse)
+	err := c.cc.Invoke(ctx, "/lbm.fswap.v1.Query/Swap", in, out, opts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
 func (c *queryClient) Swaps(ctx context.Context, in *QuerySwapsRequest, opts ...grpc.CallOption) (*QuerySwapsResponse, error) {
 	out := new(QuerySwapsResponse)
 	err := c.cc.Invoke(ctx, "/lbm.fswap.v1.Query/Swaps", in, out, opts...)
@@ -446,6 +558,8 @@ type QueryServer interface {
 	Swapped(context.Context, *QuerySwappedRequest) (*QuerySwappedResponse, error)
 	// TotalSwappableToCoinAmount queries the current swappable amount for to-coin.
 	TotalSwappableToCoinAmount(context.Context, *QueryTotalSwappableToCoinAmountRequest) (*QueryTotalSwappableToCoinAmountResponse, error)
+	// Swap queries a swap
+	Swap(context.Context, *QuerySwapRequest) (*QuerySwapResponse, error)
 	// Swaps queries all the swap that registered
 	Swaps(context.Context, *QuerySwapsRequest) (*QuerySwapsResponse, error)
 }
@@ -460,6 +574,9 @@ func (*UnimplementedQueryServer) Swapped(ctx context.Context, req *QuerySwappedR
 func (*UnimplementedQueryServer) TotalSwappableToCoinAmount(ctx context.Context, req *QueryTotalSwappableToCoinAmountRequest) (*QueryTotalSwappableToCoinAmountResponse, error) {
 	return nil, status.Errorf(codes.Unimplemented, "method TotalSwappableToCoinAmount not implemented")
 }
+func (*UnimplementedQueryServer) Swap(ctx context.Context, req *QuerySwapRequest) (*QuerySwapResponse, error) {
+	return nil, status.Errorf(codes.Unimplemented, "method Swap not implemented")
+}
 func (*UnimplementedQueryServer) Swaps(ctx context.Context, req *QuerySwapsRequest) (*QuerySwapsResponse, error) {
 	return nil, status.Errorf(codes.Unimplemented, "method Swaps not implemented")
 }
@@ -504,6 +621,24 @@ func _Query_TotalSwappableToCoinAmount_Handler(srv interface{}, ctx context.Cont
 	return interceptor(ctx, in, info, handler)
 }
 
+func _Query_Swap_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
+	in := new(QuerySwapRequest)
+	if err := dec(in); err != nil {
+		return nil, err
+	}
+	if interceptor == nil {
+		return srv.(QueryServer).Swap(ctx, in)
+	}
+	info := &grpc.UnaryServerInfo{
+		Server:     srv,
+		FullMethod: "/lbm.fswap.v1.Query/Swap",
+	}
+	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
+		return srv.(QueryServer).Swap(ctx, req.(*QuerySwapRequest))
+	}
+	return interceptor(ctx, in, info, handler)
+}
+
 func _Query_Swaps_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
 	in := new(QuerySwapsRequest)
 	if err := dec(in); err != nil {
@@ -534,6 +669,10 @@ var _Query_serviceDesc = grpc.ServiceDesc{
 			MethodName: "TotalSwappableToCoinAmount",
 			Handler:    _Query_TotalSwappableToCoinAmount_Handler,
 		},
+		{
+			MethodName: "Swap",
+			Handler:    _Query_Swap_Handler,
+		},
 		{
 			MethodName: "Swaps",
 			Handler:    _Query_Swaps_Handler,
@@ -693,6 +832,76 @@ func (m *QueryTotalSwappableToCoinAmountResponse) MarshalToSizedBuffer(dAtA []by
 	return len(dAtA) - i, nil
 }
 
+func (m *QuerySwapRequest) Marshal() (dAtA []byte, err error) {
+	size := m.Size()
+	dAtA = make([]byte, size)
+	n, err := m.MarshalToSizedBuffer(dAtA[:size])
+	if err != nil {
+		return nil, err
+	}
+	return dAtA[:n], nil
+}
+
+func (m *QuerySwapRequest) MarshalTo(dAtA []byte) (int, error) {
+	size := m.Size()
+	return m.MarshalToSizedBuffer(dAtA[:size])
+}
+
+func (m *QuerySwapRequest) MarshalToSizedBuffer(dAtA []byte) (int, error) {
+	i := len(dAtA)
+	_ = i
+	var l int
+	_ = l
+	if len(m.ToDenom) > 0 {
+		i -= len(m.ToDenom)
+		copy(dAtA[i:], m.ToDenom)
+		i = encodeVarintQuery(dAtA, i, uint64(len(m.ToDenom)))
+		i--
+		dAtA[i] = 0x12
+	}
+	if len(m.FromDenom) > 0 {
+		i -= len(m.FromDenom)
+		copy(dAtA[i:], m.FromDenom)
+		i = encodeVarintQuery(dAtA, i, uint64(len(m.FromDenom)))
+		i--
+		dAtA[i] = 0xa
+	}
+	return len(dAtA) - i, nil
+}
+
+func (m *QuerySwapResponse) Marshal() (dAtA []byte, err error) {
+	size := m.Size()
+	dAtA = make([]byte, size)
+	n, err := m.MarshalToSizedBuffer(dAtA[:size])
+	if err != nil {
+		return nil, err
+	}
+	return dAtA[:n], nil
+}
+
+func (m *QuerySwapResponse) MarshalTo(dAtA []byte) (int, error) {
+	size := m.Size()
+	return m.MarshalToSizedBuffer(dAtA[:size])
+}
+
+func (m *QuerySwapResponse) MarshalToSizedBuffer(dAtA []byte) (int, error) {
+	i := len(dAtA)
+	_ = i
+	var l int
+	_ = l
+	{
+		size, err := m.Swap.MarshalToSizedBuffer(dAtA[:i])
+		if err != nil {
+			return 0, err
+		}
+		i -= size
+		i = encodeVarintQuery(dAtA, i, uint64(size))
+	}
+	i--
+	dAtA[i] = 0xa
+	return len(dAtA) - i, nil
+}
+
 func (m *QuerySwapsRequest) Marshal() (dAtA []byte, err error) {
 	size := m.Size()
 	dAtA = make([]byte, size)
@@ -846,6 +1055,34 @@ func (m *QueryTotalSwappableToCoinAmountResponse) Size() (n int) {
 	return n
 }
 
+func (m *QuerySwapRequest) Size() (n int) {
+	if m == nil {
+		return 0
+	}
+	var l int
+	_ = l
+	l = len(m.FromDenom)
+	if l > 0 {
+		n += 1 + l + sovQuery(uint64(l))
+	}
+	l = len(m.ToDenom)
+	if l > 0 {
+		n += 1 + l + sovQuery(uint64(l))
+	}
+	return n
+}
+
+func (m *QuerySwapResponse) Size() (n int) {
+	if m == nil {
+		return 0
+	}
+	var l int
+	_ = l
+	l = m.Swap.Size()
+	n += 1 + l + sovQuery(uint64(l))
+	return n
+}
+
 func (m *QuerySwapsRequest) Size() (n int) {
 	if m == nil {
 		return 0
@@ -1311,6 +1548,203 @@ func (m *QueryTotalSwappableToCoinAmountResponse) Unmarshal(dAtA []byte) error {
 	}
 	return nil
 }
+func (m *QuerySwapRequest) Unmarshal(dAtA []byte) error {
+	l := len(dAtA)
+	iNdEx := 0
+	for iNdEx < l {
+		preIndex := iNdEx
+		var wire uint64
+		for shift := uint(0); ; shift += 7 {
+			if shift >= 64 {
+				return ErrIntOverflowQuery
+			}
+			if iNdEx >= l {
+				return io.ErrUnexpectedEOF
+			}
+			b := dAtA[iNdEx]
+			iNdEx++
+			wire |= uint64(b&0x7F) << shift
+			if b < 0x80 {
+				break
+			}
+		}
+		fieldNum := int32(wire >> 3)
+		wireType := int(wire & 0x7)
+		if wireType == 4 {
+			return fmt.Errorf("proto: QuerySwapRequest: wiretype end group for non-group")
+		}
+		if fieldNum <= 0 {
+			return fmt.Errorf("proto: QuerySwapRequest: illegal tag %d (wire type %d)", fieldNum, wire)
+		}
+		switch fieldNum {
+		case 1:
+			if wireType != 2 {
+				return fmt.Errorf("proto: wrong wireType = %d for field FromDenom", wireType)
+			}
+			var stringLen uint64
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return ErrIntOverflowQuery
+				}
+				if iNdEx >= l {
+					return io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				stringLen |= uint64(b&0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
+			intStringLen := int(stringLen)
+			if intStringLen < 0 {
+				return ErrInvalidLengthQuery
+			}
+			postIndex := iNdEx + intStringLen
+			if postIndex < 0 {
+				return ErrInvalidLengthQuery
+			}
+			if postIndex > l {
+				return io.ErrUnexpectedEOF
+			}
+			m.FromDenom = string(dAtA[iNdEx:postIndex])
+			iNdEx = postIndex
+		case 2:
+			if wireType != 2 {
+				return fmt.Errorf("proto: wrong wireType = %d for field ToDenom", wireType)
+			}
+			var stringLen uint64
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return ErrIntOverflowQuery
+				}
+				if iNdEx >= l {
+					return io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				stringLen |= uint64(b&0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
+			intStringLen := int(stringLen)
+			if intStringLen < 0 {
+				return ErrInvalidLengthQuery
+			}
+			postIndex := iNdEx + intStringLen
+			if postIndex < 0 {
+				return ErrInvalidLengthQuery
+			}
+			if postIndex > l {
+				return io.ErrUnexpectedEOF
+			}
+			m.ToDenom = string(dAtA[iNdEx:postIndex])
+			iNdEx = postIndex
+		default:
+			iNdEx = preIndex
+			skippy, err := skipQuery(dAtA[iNdEx:])
+			if err != nil {
+				return err
+			}
+			if (skippy < 0) || (iNdEx+skippy) < 0 {
+				return ErrInvalidLengthQuery
+			}
+			if (iNdEx + skippy) > l {
+				return io.ErrUnexpectedEOF
+			}
+			iNdEx += skippy
+		}
+	}
+
+	if iNdEx > l {
+		return io.ErrUnexpectedEOF
+	}
+	return nil
+}
+func (m *QuerySwapResponse) Unmarshal(dAtA []byte) error {
+	l := len(dAtA)
+	iNdEx := 0
+	for iNdEx < l {
+		preIndex := iNdEx
+		var wire uint64
+		for shift := uint(0); ; shift += 7 {
+			if shift >= 64 {
+				return ErrIntOverflowQuery
+			}
+			if iNdEx >= l {
+				return io.ErrUnexpectedEOF
+			}
+			b := dAtA[iNdEx]
+			iNdEx++
+			wire |= uint64(b&0x7F) << shift
+			if b < 0x80 {
+				break
+			}
+		}
+		fieldNum := int32(wire >> 3)
+		wireType := int(wire & 0x7)
+		if wireType == 4 {
+			return fmt.Errorf("proto: QuerySwapResponse: wiretype end group for non-group")
+		}
+		if fieldNum <= 0 {
+			return fmt.Errorf("proto: QuerySwapResponse: illegal tag %d (wire type %d)", fieldNum, wire)
+		}
+		switch fieldNum {
+		case 1:
+			if wireType != 2 {
+				return fmt.Errorf("proto: wrong wireType = %d for field Swap", wireType)
+			}
+			var msglen int
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return ErrIntOverflowQuery
+				}
+				if iNdEx >= l {
+					return io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				msglen |= int(b&0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
+			if msglen < 0 {
+				return ErrInvalidLengthQuery
+			}
+			postIndex := iNdEx + msglen
+			if postIndex < 0 {
+				return ErrInvalidLengthQuery
+			}
+			if postIndex > l {
+				return io.ErrUnexpectedEOF
+			}
+			if err := m.Swap.Unmarshal(dAtA[iNdEx:postIndex]); err != nil {
+				return err
+			}
+			iNdEx = postIndex
+		default:
+			iNdEx = preIndex
+			skippy, err := skipQuery(dAtA[iNdEx:])
+			if err != nil {
+				return err
+			}
+			if (skippy < 0) || (iNdEx+skippy) < 0 {
+				return ErrInvalidLengthQuery
+			}
+			if (iNdEx + skippy) > l {
+				return io.ErrUnexpectedEOF
+			}
+			iNdEx += skippy
+		}
+	}
+
+	if iNdEx > l {
+		return io.ErrUnexpectedEOF
+	}
+	return nil
+}
 func (m *QuerySwapsRequest) Unmarshal(dAtA []byte) error {
 	l := len(dAtA)
 	iNdEx := 0
diff --git a/x/fswap/types/query.pb.gw.go b/x/fswap/types/query.pb.gw.go
index 00786290bd..5442d360f7 100644
--- a/x/fswap/types/query.pb.gw.go
+++ b/x/fswap/types/query.pb.gw.go
@@ -103,6 +103,42 @@ func local_request_Query_TotalSwappableToCoinAmount_0(ctx context.Context, marsh
 
 }
 
+var (
+	filter_Query_Swap_0 = &utilities.DoubleArray{Encoding: map[string]int{}, Base: []int(nil), Check: []int(nil)}
+)
+
+func request_Query_Swap_0(ctx context.Context, marshaler runtime.Marshaler, client QueryClient, req *http.Request, pathParams map[string]string) (proto.Message, runtime.ServerMetadata, error) {
+	var protoReq QuerySwapRequest
+	var metadata runtime.ServerMetadata
+
+	if err := req.ParseForm(); err != nil {
+		return nil, metadata, status.Errorf(codes.InvalidArgument, "%v", err)
+	}
+	if err := runtime.PopulateQueryParameters(&protoReq, req.Form, filter_Query_Swap_0); err != nil {
+		return nil, metadata, status.Errorf(codes.InvalidArgument, "%v", err)
+	}
+
+	msg, err := client.Swap(ctx, &protoReq, grpc.Header(&metadata.HeaderMD), grpc.Trailer(&metadata.TrailerMD))
+	return msg, metadata, err
+
+}
+
+func local_request_Query_Swap_0(ctx context.Context, marshaler runtime.Marshaler, server QueryServer, req *http.Request, pathParams map[string]string) (proto.Message, runtime.ServerMetadata, error) {
+	var protoReq QuerySwapRequest
+	var metadata runtime.ServerMetadata
+
+	if err := req.ParseForm(); err != nil {
+		return nil, metadata, status.Errorf(codes.InvalidArgument, "%v", err)
+	}
+	if err := runtime.PopulateQueryParameters(&protoReq, req.Form, filter_Query_Swap_0); err != nil {
+		return nil, metadata, status.Errorf(codes.InvalidArgument, "%v", err)
+	}
+
+	msg, err := server.Swap(ctx, &protoReq)
+	return msg, metadata, err
+
+}
+
 var (
 	filter_Query_Swaps_0 = &utilities.DoubleArray{Encoding: map[string]int{}, Base: []int(nil), Check: []int(nil)}
 )
@@ -185,6 +221,26 @@ func RegisterQueryHandlerServer(ctx context.Context, mux *runtime.ServeMux, serv
 
 	})
 
+	mux.Handle("GET", pattern_Query_Swap_0, func(w http.ResponseWriter, req *http.Request, pathParams map[string]string) {
+		ctx, cancel := context.WithCancel(req.Context())
+		defer cancel()
+		inboundMarshaler, outboundMarshaler := runtime.MarshalerForRequest(mux, req)
+		rctx, err := runtime.AnnotateIncomingContext(ctx, mux, req)
+		if err != nil {
+			runtime.HTTPError(ctx, mux, outboundMarshaler, w, req, err)
+			return
+		}
+		resp, md, err := local_request_Query_Swap_0(rctx, inboundMarshaler, server, req, pathParams)
+		ctx = runtime.NewServerMetadataContext(ctx, md)
+		if err != nil {
+			runtime.HTTPError(ctx, mux, outboundMarshaler, w, req, err)
+			return
+		}
+
+		forward_Query_Swap_0(ctx, mux, outboundMarshaler, w, req, resp, mux.GetForwardResponseOptions()...)
+
+	})
+
 	mux.Handle("GET", pattern_Query_Swaps_0, func(w http.ResponseWriter, req *http.Request, pathParams map[string]string) {
 		ctx, cancel := context.WithCancel(req.Context())
 		defer cancel()
@@ -286,6 +342,26 @@ func RegisterQueryHandlerClient(ctx context.Context, mux *runtime.ServeMux, clie
 
 	})
 
+	mux.Handle("GET", pattern_Query_Swap_0, func(w http.ResponseWriter, req *http.Request, pathParams map[string]string) {
+		ctx, cancel := context.WithCancel(req.Context())
+		defer cancel()
+		inboundMarshaler, outboundMarshaler := runtime.MarshalerForRequest(mux, req)
+		rctx, err := runtime.AnnotateContext(ctx, mux, req)
+		if err != nil {
+			runtime.HTTPError(ctx, mux, outboundMarshaler, w, req, err)
+			return
+		}
+		resp, md, err := request_Query_Swap_0(rctx, inboundMarshaler, client, req, pathParams)
+		ctx = runtime.NewServerMetadataContext(ctx, md)
+		if err != nil {
+			runtime.HTTPError(ctx, mux, outboundMarshaler, w, req, err)
+			return
+		}
+
+		forward_Query_Swap_0(ctx, mux, outboundMarshaler, w, req, resp, mux.GetForwardResponseOptions()...)
+
+	})
+
 	mux.Handle("GET", pattern_Query_Swaps_0, func(w http.ResponseWriter, req *http.Request, pathParams map[string]string) {
 		ctx, cancel := context.WithCancel(req.Context())
 		defer cancel()
@@ -314,6 +390,8 @@ var (
 
 	pattern_Query_TotalSwappableToCoinAmount_0 = runtime.MustPattern(runtime.NewPattern(1, []int{2, 0, 2, 1, 2, 2, 2, 3}, []string{"lbm", "fswap", "v1", "total_swappable_to_coin_amount"}, "", runtime.AssumeColonVerbOpt(false)))
 
+	pattern_Query_Swap_0 = runtime.MustPattern(runtime.NewPattern(1, []int{2, 0, 2, 1, 2, 2, 2, 3}, []string{"lbm", "fswap", "v1", "swap"}, "", runtime.AssumeColonVerbOpt(false)))
+
 	pattern_Query_Swaps_0 = runtime.MustPattern(runtime.NewPattern(1, []int{2, 0, 2, 1, 2, 2, 2, 3}, []string{"lbm", "fswap", "v1", "swaps"}, "", runtime.AssumeColonVerbOpt(false)))
 )
 
@@ -322,5 +400,7 @@ var (
 
 	forward_Query_TotalSwappableToCoinAmount_0 = runtime.ForwardResponseMessage
 
+	forward_Query_Swap_0 = runtime.ForwardResponseMessage
+
 	forward_Query_Swaps_0 = runtime.ForwardResponseMessage
 )