From 9e848bfe380848b3715ae185e23aa9c7208e1271 Mon Sep 17 00:00:00 2001
From: Aleksandr Bezobchuk <aleks.bezobchuk@gmail.com>
Date: Sat, 19 Mar 2022 11:04:23 -0400
Subject: [PATCH 1/5] updates

---
 proto/cosmos/bank/v1beta1/query.proto |  30 ++
 x/bank/keeper/grpc_query.go           |  42 ++
 x/bank/types/query.pb.go              | 656 +++++++++++++++++++++++---
 x/bank/types/query.pb.gw.go           | 116 +++++
 4 files changed, 770 insertions(+), 74 deletions(-)

diff --git a/proto/cosmos/bank/v1beta1/query.proto b/proto/cosmos/bank/v1beta1/query.proto
index 98750639ca68..0d81a20d988a 100644
--- a/proto/cosmos/bank/v1beta1/query.proto
+++ b/proto/cosmos/bank/v1beta1/query.proto
@@ -22,6 +22,12 @@ service Query {
     option (google.api.http).get = "/cosmos/bank/v1beta1/balances/{address}";
   }
 
+  // SpendableBalances queries the spenable balance of all coins for a single
+  // account.
+  rpc SpendableBalances(QuerySpendableBalancesRequest) returns (QuerySpendableBalancesResponse) {
+    option (google.api.http).get = "/cosmos/bank/v1beta1/spendable_balances/{address}";
+  }
+
   // TotalSupply queries the total supply of all coins.
   rpc TotalSupply(QueryTotalSupplyRequest) returns (QueryTotalSupplyResponse) {
     option (google.api.http).get = "/cosmos/bank/v1beta1/supply";
@@ -96,6 +102,30 @@ message QueryAllBalancesResponse {
   cosmos.base.query.v1beta1.PageResponse pagination = 2;
 }
 
+// QuerySpendableBalancesRequest defines the gRPC request structure for querying
+// an account's spendable balances.
+message QuerySpendableBalancesRequest {
+  option (gogoproto.equal)           = false;
+  option (gogoproto.goproto_getters) = false;
+
+  // address is the address to query spendable balances for.
+  string address = 1 [(cosmos_proto.scalar) = "cosmos.AddressString"];
+
+  // pagination defines an optional pagination for the request.
+  cosmos.base.query.v1beta1.PageRequest pagination = 2;
+}
+
+// QuerySpendableBalancesResponse defines the gRPC response structure for querying
+// an account's spendable balances.
+message QuerySpendableBalancesResponse {
+  // balances is the spendable balances of all the coins.
+  repeated cosmos.base.v1beta1.Coin balances = 1
+      [(gogoproto.nullable) = false, (gogoproto.castrepeated) = "github.com/cosmos/cosmos-sdk/types.Coins"];
+
+  // pagination defines the pagination in the response.
+  cosmos.base.query.v1beta1.PageResponse pagination = 2;
+}
+
 // QueryTotalSupplyRequest is the request type for the Query/TotalSupply RPC
 // method.
 message QueryTotalSupplyRequest {
diff --git a/x/bank/keeper/grpc_query.go b/x/bank/keeper/grpc_query.go
index 70c780dcf5e6..163947bcb85f 100644
--- a/x/bank/keeper/grpc_query.go
+++ b/x/bank/keeper/grpc_query.go
@@ -75,6 +75,48 @@ func (k BaseKeeper) AllBalances(ctx context.Context, req *types.QueryAllBalances
 	return &types.QueryAllBalancesResponse{Balances: balances, Pagination: pageRes}, nil
 }
 
+// SpendableBalances implements a gRPC query handler for retrieving an account's
+// spendable balances.
+func (k BaseKeeper) SpendableBalances(ctx context.Context, req *types.QuerySpendableBalancesRequest) (*types.QuerySpendableBalancesResponse, error) {
+	if req == nil {
+		return nil, status.Error(codes.InvalidArgument, "empty request")
+	}
+	if req.Address == "" {
+		return nil, status.Error(codes.InvalidArgument, "address cannot be empty")
+	}
+
+	addr, err := sdk.AccAddressFromBech32(req.Address)
+	if err != nil {
+		return nil, status.Errorf(codes.InvalidArgument, "invalid address: %s", err.Error())
+	}
+
+	sdkCtx := sdk.UnwrapSDKContext(ctx)
+
+	balances := sdk.NewCoins()
+	accountStore := k.getAccountStore(sdkCtx, addr)
+
+	pageRes, err := query.Paginate(accountStore, req.Pagination, func(key, value []byte) error {
+		var amount sdk.Int
+		if err := amount.Unmarshal(value); err != nil {
+			return err
+		}
+		balances = append(balances, sdk.NewCoin(string(key), amount))
+		return nil
+	})
+	if err != nil {
+		return nil, status.Errorf(codes.InvalidArgument, "paginate: %v", err)
+	}
+
+	result := sdk.NewCoins()
+	spendable := k.SpendableCoins(sdkCtx, addr)
+
+	for _, c := range balances {
+		result = append(result, sdk.NewCoin(c.Denom, spendable.AmountOf(c.Denom)))
+	}
+
+	return &types.QuerySpendableBalancesResponse{Balances: result, Pagination: pageRes}, nil
+}
+
 // TotalSupply implements the Query/TotalSupply gRPC method
 func (k BaseKeeper) TotalSupply(ctx context.Context, req *types.QueryTotalSupplyRequest) (*types.QueryTotalSupplyResponse, error) {
 	sdkCtx := sdk.UnwrapSDKContext(ctx)
diff --git a/x/bank/types/query.pb.go b/x/bank/types/query.pb.go
index 942d6713dd64..922e7f5a27d9 100644
--- a/x/bank/types/query.pb.go
+++ b/x/bank/types/query.pb.go
@@ -217,6 +217,104 @@ func (m *QueryAllBalancesResponse) GetPagination() *query.PageResponse {
 	return nil
 }
 
+// QuerySpendableBalancesRequest defines the gRPC request structure for querying
+// an account's spendable balances.
+type QuerySpendableBalancesRequest struct {
+	// address is the address to query spendable balances for.
+	Address string `protobuf:"bytes,1,opt,name=address,proto3" json:"address,omitempty"`
+	// pagination defines an optional pagination for the request.
+	Pagination *query.PageRequest `protobuf:"bytes,2,opt,name=pagination,proto3" json:"pagination,omitempty"`
+}
+
+func (m *QuerySpendableBalancesRequest) Reset()         { *m = QuerySpendableBalancesRequest{} }
+func (m *QuerySpendableBalancesRequest) String() string { return proto.CompactTextString(m) }
+func (*QuerySpendableBalancesRequest) ProtoMessage()    {}
+func (*QuerySpendableBalancesRequest) Descriptor() ([]byte, []int) {
+	return fileDescriptor_9c6fc1939682df13, []int{4}
+}
+func (m *QuerySpendableBalancesRequest) XXX_Unmarshal(b []byte) error {
+	return m.Unmarshal(b)
+}
+func (m *QuerySpendableBalancesRequest) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
+	if deterministic {
+		return xxx_messageInfo_QuerySpendableBalancesRequest.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 *QuerySpendableBalancesRequest) XXX_Merge(src proto.Message) {
+	xxx_messageInfo_QuerySpendableBalancesRequest.Merge(m, src)
+}
+func (m *QuerySpendableBalancesRequest) XXX_Size() int {
+	return m.Size()
+}
+func (m *QuerySpendableBalancesRequest) XXX_DiscardUnknown() {
+	xxx_messageInfo_QuerySpendableBalancesRequest.DiscardUnknown(m)
+}
+
+var xxx_messageInfo_QuerySpendableBalancesRequest proto.InternalMessageInfo
+
+// QuerySpendableBalancesResponse defines the gRPC response structure for querying
+// an account's spendable balances.
+type QuerySpendableBalancesResponse struct {
+	// balances is the spendable balances of all the coins.
+	Balances github_com_cosmos_cosmos_sdk_types.Coins `protobuf:"bytes,1,rep,name=balances,proto3,castrepeated=github.com/cosmos/cosmos-sdk/types.Coins" json:"balances"`
+	// pagination defines the pagination in the response.
+	Pagination *query.PageResponse `protobuf:"bytes,2,opt,name=pagination,proto3" json:"pagination,omitempty"`
+}
+
+func (m *QuerySpendableBalancesResponse) Reset()         { *m = QuerySpendableBalancesResponse{} }
+func (m *QuerySpendableBalancesResponse) String() string { return proto.CompactTextString(m) }
+func (*QuerySpendableBalancesResponse) ProtoMessage()    {}
+func (*QuerySpendableBalancesResponse) Descriptor() ([]byte, []int) {
+	return fileDescriptor_9c6fc1939682df13, []int{5}
+}
+func (m *QuerySpendableBalancesResponse) XXX_Unmarshal(b []byte) error {
+	return m.Unmarshal(b)
+}
+func (m *QuerySpendableBalancesResponse) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
+	if deterministic {
+		return xxx_messageInfo_QuerySpendableBalancesResponse.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 *QuerySpendableBalancesResponse) XXX_Merge(src proto.Message) {
+	xxx_messageInfo_QuerySpendableBalancesResponse.Merge(m, src)
+}
+func (m *QuerySpendableBalancesResponse) XXX_Size() int {
+	return m.Size()
+}
+func (m *QuerySpendableBalancesResponse) XXX_DiscardUnknown() {
+	xxx_messageInfo_QuerySpendableBalancesResponse.DiscardUnknown(m)
+}
+
+var xxx_messageInfo_QuerySpendableBalancesResponse proto.InternalMessageInfo
+
+func (m *QuerySpendableBalancesResponse) GetBalances() github_com_cosmos_cosmos_sdk_types.Coins {
+	if m != nil {
+		return m.Balances
+	}
+	return nil
+}
+
+func (m *QuerySpendableBalancesResponse) GetPagination() *query.PageResponse {
+	if m != nil {
+		return m.Pagination
+	}
+	return nil
+}
+
 // QueryTotalSupplyRequest is the request type for the Query/TotalSupply RPC
 // method.
 type QueryTotalSupplyRequest struct {
@@ -230,7 +328,7 @@ func (m *QueryTotalSupplyRequest) Reset()         { *m = QueryTotalSupplyRequest
 func (m *QueryTotalSupplyRequest) String() string { return proto.CompactTextString(m) }
 func (*QueryTotalSupplyRequest) ProtoMessage()    {}
 func (*QueryTotalSupplyRequest) Descriptor() ([]byte, []int) {
-	return fileDescriptor_9c6fc1939682df13, []int{4}
+	return fileDescriptor_9c6fc1939682df13, []int{6}
 }
 func (m *QueryTotalSupplyRequest) XXX_Unmarshal(b []byte) error {
 	return m.Unmarshal(b)
@@ -274,7 +372,7 @@ func (m *QueryTotalSupplyResponse) Reset()         { *m = QueryTotalSupplyRespon
 func (m *QueryTotalSupplyResponse) String() string { return proto.CompactTextString(m) }
 func (*QueryTotalSupplyResponse) ProtoMessage()    {}
 func (*QueryTotalSupplyResponse) Descriptor() ([]byte, []int) {
-	return fileDescriptor_9c6fc1939682df13, []int{5}
+	return fileDescriptor_9c6fc1939682df13, []int{7}
 }
 func (m *QueryTotalSupplyResponse) XXX_Unmarshal(b []byte) error {
 	return m.Unmarshal(b)
@@ -327,7 +425,7 @@ func (m *QuerySupplyOfRequest) Reset()         { *m = QuerySupplyOfRequest{} }
 func (m *QuerySupplyOfRequest) String() string { return proto.CompactTextString(m) }
 func (*QuerySupplyOfRequest) ProtoMessage()    {}
 func (*QuerySupplyOfRequest) Descriptor() ([]byte, []int) {
-	return fileDescriptor_9c6fc1939682df13, []int{6}
+	return fileDescriptor_9c6fc1939682df13, []int{8}
 }
 func (m *QuerySupplyOfRequest) XXX_Unmarshal(b []byte) error {
 	return m.Unmarshal(b)
@@ -373,7 +471,7 @@ func (m *QuerySupplyOfResponse) Reset()         { *m = QuerySupplyOfResponse{} }
 func (m *QuerySupplyOfResponse) String() string { return proto.CompactTextString(m) }
 func (*QuerySupplyOfResponse) ProtoMessage()    {}
 func (*QuerySupplyOfResponse) Descriptor() ([]byte, []int) {
-	return fileDescriptor_9c6fc1939682df13, []int{7}
+	return fileDescriptor_9c6fc1939682df13, []int{9}
 }
 func (m *QuerySupplyOfResponse) XXX_Unmarshal(b []byte) error {
 	return m.Unmarshal(b)
@@ -417,7 +515,7 @@ func (m *QueryParamsRequest) Reset()         { *m = QueryParamsRequest{} }
 func (m *QueryParamsRequest) String() string { return proto.CompactTextString(m) }
 func (*QueryParamsRequest) ProtoMessage()    {}
 func (*QueryParamsRequest) Descriptor() ([]byte, []int) {
-	return fileDescriptor_9c6fc1939682df13, []int{8}
+	return fileDescriptor_9c6fc1939682df13, []int{10}
 }
 func (m *QueryParamsRequest) XXX_Unmarshal(b []byte) error {
 	return m.Unmarshal(b)
@@ -455,7 +553,7 @@ func (m *QueryParamsResponse) Reset()         { *m = QueryParamsResponse{} }
 func (m *QueryParamsResponse) String() string { return proto.CompactTextString(m) }
 func (*QueryParamsResponse) ProtoMessage()    {}
 func (*QueryParamsResponse) Descriptor() ([]byte, []int) {
-	return fileDescriptor_9c6fc1939682df13, []int{9}
+	return fileDescriptor_9c6fc1939682df13, []int{11}
 }
 func (m *QueryParamsResponse) XXX_Unmarshal(b []byte) error {
 	return m.Unmarshal(b)
@@ -501,7 +599,7 @@ func (m *QueryDenomsMetadataRequest) Reset()         { *m = QueryDenomsMetadataR
 func (m *QueryDenomsMetadataRequest) String() string { return proto.CompactTextString(m) }
 func (*QueryDenomsMetadataRequest) ProtoMessage()    {}
 func (*QueryDenomsMetadataRequest) Descriptor() ([]byte, []int) {
-	return fileDescriptor_9c6fc1939682df13, []int{10}
+	return fileDescriptor_9c6fc1939682df13, []int{12}
 }
 func (m *QueryDenomsMetadataRequest) XXX_Unmarshal(b []byte) error {
 	return m.Unmarshal(b)
@@ -550,7 +648,7 @@ func (m *QueryDenomsMetadataResponse) Reset()         { *m = QueryDenomsMetadata
 func (m *QueryDenomsMetadataResponse) String() string { return proto.CompactTextString(m) }
 func (*QueryDenomsMetadataResponse) ProtoMessage()    {}
 func (*QueryDenomsMetadataResponse) Descriptor() ([]byte, []int) {
-	return fileDescriptor_9c6fc1939682df13, []int{11}
+	return fileDescriptor_9c6fc1939682df13, []int{13}
 }
 func (m *QueryDenomsMetadataResponse) XXX_Unmarshal(b []byte) error {
 	return m.Unmarshal(b)
@@ -603,7 +701,7 @@ func (m *QueryDenomMetadataRequest) Reset()         { *m = QueryDenomMetadataReq
 func (m *QueryDenomMetadataRequest) String() string { return proto.CompactTextString(m) }
 func (*QueryDenomMetadataRequest) ProtoMessage()    {}
 func (*QueryDenomMetadataRequest) Descriptor() ([]byte, []int) {
-	return fileDescriptor_9c6fc1939682df13, []int{12}
+	return fileDescriptor_9c6fc1939682df13, []int{14}
 }
 func (m *QueryDenomMetadataRequest) XXX_Unmarshal(b []byte) error {
 	return m.Unmarshal(b)
@@ -650,7 +748,7 @@ func (m *QueryDenomMetadataResponse) Reset()         { *m = QueryDenomMetadataRe
 func (m *QueryDenomMetadataResponse) String() string { return proto.CompactTextString(m) }
 func (*QueryDenomMetadataResponse) ProtoMessage()    {}
 func (*QueryDenomMetadataResponse) Descriptor() ([]byte, []int) {
-	return fileDescriptor_9c6fc1939682df13, []int{13}
+	return fileDescriptor_9c6fc1939682df13, []int{15}
 }
 func (m *QueryDenomMetadataResponse) XXX_Unmarshal(b []byte) error {
 	return m.Unmarshal(b)
@@ -700,7 +798,7 @@ func (m *QueryDenomOwnersRequest) Reset()         { *m = QueryDenomOwnersRequest
 func (m *QueryDenomOwnersRequest) String() string { return proto.CompactTextString(m) }
 func (*QueryDenomOwnersRequest) ProtoMessage()    {}
 func (*QueryDenomOwnersRequest) Descriptor() ([]byte, []int) {
-	return fileDescriptor_9c6fc1939682df13, []int{14}
+	return fileDescriptor_9c6fc1939682df13, []int{16}
 }
 func (m *QueryDenomOwnersRequest) XXX_Unmarshal(b []byte) error {
 	return m.Unmarshal(b)
@@ -757,7 +855,7 @@ func (m *DenomOwner) Reset()         { *m = DenomOwner{} }
 func (m *DenomOwner) String() string { return proto.CompactTextString(m) }
 func (*DenomOwner) ProtoMessage()    {}
 func (*DenomOwner) Descriptor() ([]byte, []int) {
-	return fileDescriptor_9c6fc1939682df13, []int{15}
+	return fileDescriptor_9c6fc1939682df13, []int{17}
 }
 func (m *DenomOwner) XXX_Unmarshal(b []byte) error {
 	return m.Unmarshal(b)
@@ -811,7 +909,7 @@ func (m *QueryDenomOwnersResponse) Reset()         { *m = QueryDenomOwnersRespon
 func (m *QueryDenomOwnersResponse) String() string { return proto.CompactTextString(m) }
 func (*QueryDenomOwnersResponse) ProtoMessage()    {}
 func (*QueryDenomOwnersResponse) Descriptor() ([]byte, []int) {
-	return fileDescriptor_9c6fc1939682df13, []int{16}
+	return fileDescriptor_9c6fc1939682df13, []int{18}
 }
 func (m *QueryDenomOwnersResponse) XXX_Unmarshal(b []byte) error {
 	return m.Unmarshal(b)
@@ -859,6 +957,8 @@ func init() {
 	proto.RegisterType((*QueryBalanceResponse)(nil), "cosmos.bank.v1beta1.QueryBalanceResponse")
 	proto.RegisterType((*QueryAllBalancesRequest)(nil), "cosmos.bank.v1beta1.QueryAllBalancesRequest")
 	proto.RegisterType((*QueryAllBalancesResponse)(nil), "cosmos.bank.v1beta1.QueryAllBalancesResponse")
+	proto.RegisterType((*QuerySpendableBalancesRequest)(nil), "cosmos.bank.v1beta1.QuerySpendableBalancesRequest")
+	proto.RegisterType((*QuerySpendableBalancesResponse)(nil), "cosmos.bank.v1beta1.QuerySpendableBalancesResponse")
 	proto.RegisterType((*QueryTotalSupplyRequest)(nil), "cosmos.bank.v1beta1.QueryTotalSupplyRequest")
 	proto.RegisterType((*QueryTotalSupplyResponse)(nil), "cosmos.bank.v1beta1.QueryTotalSupplyResponse")
 	proto.RegisterType((*QuerySupplyOfRequest)(nil), "cosmos.bank.v1beta1.QuerySupplyOfRequest")
@@ -877,67 +977,70 @@ func init() {
 func init() { proto.RegisterFile("cosmos/bank/v1beta1/query.proto", fileDescriptor_9c6fc1939682df13) }
 
 var fileDescriptor_9c6fc1939682df13 = []byte{
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 }
 
 // Reference imports to suppress errors if they are not otherwise used.
@@ -956,6 +1059,9 @@ type QueryClient interface {
 	Balance(ctx context.Context, in *QueryBalanceRequest, opts ...grpc.CallOption) (*QueryBalanceResponse, error)
 	// AllBalances queries the balance of all coins for a single account.
 	AllBalances(ctx context.Context, in *QueryAllBalancesRequest, opts ...grpc.CallOption) (*QueryAllBalancesResponse, error)
+	// SpendableBalances queries the spenable balance of all coins for a single
+	// account.
+	SpendableBalances(ctx context.Context, in *QuerySpendableBalancesRequest, opts ...grpc.CallOption) (*QuerySpendableBalancesResponse, error)
 	// TotalSupply queries the total supply of all coins.
 	TotalSupply(ctx context.Context, in *QueryTotalSupplyRequest, opts ...grpc.CallOption) (*QueryTotalSupplyResponse, error)
 	// SupplyOf queries the supply of a single coin.
@@ -998,6 +1104,15 @@ func (c *queryClient) AllBalances(ctx context.Context, in *QueryAllBalancesReque
 	return out, nil
 }
 
+func (c *queryClient) SpendableBalances(ctx context.Context, in *QuerySpendableBalancesRequest, opts ...grpc.CallOption) (*QuerySpendableBalancesResponse, error) {
+	out := new(QuerySpendableBalancesResponse)
+	err := c.cc.Invoke(ctx, "/cosmos.bank.v1beta1.Query/SpendableBalances", in, out, opts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
 func (c *queryClient) TotalSupply(ctx context.Context, in *QueryTotalSupplyRequest, opts ...grpc.CallOption) (*QueryTotalSupplyResponse, error) {
 	out := new(QueryTotalSupplyResponse)
 	err := c.cc.Invoke(ctx, "/cosmos.bank.v1beta1.Query/TotalSupply", in, out, opts...)
@@ -1058,6 +1173,9 @@ type QueryServer interface {
 	Balance(context.Context, *QueryBalanceRequest) (*QueryBalanceResponse, error)
 	// AllBalances queries the balance of all coins for a single account.
 	AllBalances(context.Context, *QueryAllBalancesRequest) (*QueryAllBalancesResponse, error)
+	// SpendableBalances queries the spenable balance of all coins for a single
+	// account.
+	SpendableBalances(context.Context, *QuerySpendableBalancesRequest) (*QuerySpendableBalancesResponse, error)
 	// TotalSupply queries the total supply of all coins.
 	TotalSupply(context.Context, *QueryTotalSupplyRequest) (*QueryTotalSupplyResponse, error)
 	// SupplyOf queries the supply of a single coin.
@@ -1084,6 +1202,9 @@ func (*UnimplementedQueryServer) Balance(ctx context.Context, req *QueryBalanceR
 func (*UnimplementedQueryServer) AllBalances(ctx context.Context, req *QueryAllBalancesRequest) (*QueryAllBalancesResponse, error) {
 	return nil, status.Errorf(codes.Unimplemented, "method AllBalances not implemented")
 }
+func (*UnimplementedQueryServer) SpendableBalances(ctx context.Context, req *QuerySpendableBalancesRequest) (*QuerySpendableBalancesResponse, error) {
+	return nil, status.Errorf(codes.Unimplemented, "method SpendableBalances not implemented")
+}
 func (*UnimplementedQueryServer) TotalSupply(ctx context.Context, req *QueryTotalSupplyRequest) (*QueryTotalSupplyResponse, error) {
 	return nil, status.Errorf(codes.Unimplemented, "method TotalSupply not implemented")
 }
@@ -1143,6 +1264,24 @@ func _Query_AllBalances_Handler(srv interface{}, ctx context.Context, dec func(i
 	return interceptor(ctx, in, info, handler)
 }
 
+func _Query_SpendableBalances_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
+	in := new(QuerySpendableBalancesRequest)
+	if err := dec(in); err != nil {
+		return nil, err
+	}
+	if interceptor == nil {
+		return srv.(QueryServer).SpendableBalances(ctx, in)
+	}
+	info := &grpc.UnaryServerInfo{
+		Server:     srv,
+		FullMethod: "/cosmos.bank.v1beta1.Query/SpendableBalances",
+	}
+	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
+		return srv.(QueryServer).SpendableBalances(ctx, req.(*QuerySpendableBalancesRequest))
+	}
+	return interceptor(ctx, in, info, handler)
+}
+
 func _Query_TotalSupply_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
 	in := new(QueryTotalSupplyRequest)
 	if err := dec(in); err != nil {
@@ -1263,6 +1402,10 @@ var _Query_serviceDesc = grpc.ServiceDesc{
 			MethodName: "AllBalances",
 			Handler:    _Query_AllBalances_Handler,
 		},
+		{
+			MethodName: "SpendableBalances",
+			Handler:    _Query_SpendableBalances_Handler,
+		},
 		{
 			MethodName: "TotalSupply",
 			Handler:    _Query_TotalSupply_Handler,
@@ -1455,6 +1598,97 @@ func (m *QueryAllBalancesResponse) MarshalToSizedBuffer(dAtA []byte) (int, error
 	return len(dAtA) - i, nil
 }
 
+func (m *QuerySpendableBalancesRequest) 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 *QuerySpendableBalancesRequest) MarshalTo(dAtA []byte) (int, error) {
+	size := m.Size()
+	return m.MarshalToSizedBuffer(dAtA[:size])
+}
+
+func (m *QuerySpendableBalancesRequest) MarshalToSizedBuffer(dAtA []byte) (int, error) {
+	i := len(dAtA)
+	_ = i
+	var l int
+	_ = l
+	if m.Pagination != nil {
+		{
+			size, err := m.Pagination.MarshalToSizedBuffer(dAtA[:i])
+			if err != nil {
+				return 0, err
+			}
+			i -= size
+			i = encodeVarintQuery(dAtA, i, uint64(size))
+		}
+		i--
+		dAtA[i] = 0x12
+	}
+	if len(m.Address) > 0 {
+		i -= len(m.Address)
+		copy(dAtA[i:], m.Address)
+		i = encodeVarintQuery(dAtA, i, uint64(len(m.Address)))
+		i--
+		dAtA[i] = 0xa
+	}
+	return len(dAtA) - i, nil
+}
+
+func (m *QuerySpendableBalancesResponse) 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 *QuerySpendableBalancesResponse) MarshalTo(dAtA []byte) (int, error) {
+	size := m.Size()
+	return m.MarshalToSizedBuffer(dAtA[:size])
+}
+
+func (m *QuerySpendableBalancesResponse) MarshalToSizedBuffer(dAtA []byte) (int, error) {
+	i := len(dAtA)
+	_ = i
+	var l int
+	_ = l
+	if m.Pagination != nil {
+		{
+			size, err := m.Pagination.MarshalToSizedBuffer(dAtA[:i])
+			if err != nil {
+				return 0, err
+			}
+			i -= size
+			i = encodeVarintQuery(dAtA, i, uint64(size))
+		}
+		i--
+		dAtA[i] = 0x12
+	}
+	if len(m.Balances) > 0 {
+		for iNdEx := len(m.Balances) - 1; iNdEx >= 0; iNdEx-- {
+			{
+				size, err := m.Balances[iNdEx].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 *QueryTotalSupplyRequest) Marshal() (dAtA []byte, err error) {
 	size := m.Size()
 	dAtA = make([]byte, size)
@@ -2013,6 +2247,42 @@ func (m *QueryAllBalancesResponse) Size() (n int) {
 	return n
 }
 
+func (m *QuerySpendableBalancesRequest) Size() (n int) {
+	if m == nil {
+		return 0
+	}
+	var l int
+	_ = l
+	l = len(m.Address)
+	if l > 0 {
+		n += 1 + l + sovQuery(uint64(l))
+	}
+	if m.Pagination != nil {
+		l = m.Pagination.Size()
+		n += 1 + l + sovQuery(uint64(l))
+	}
+	return n
+}
+
+func (m *QuerySpendableBalancesResponse) Size() (n int) {
+	if m == nil {
+		return 0
+	}
+	var l int
+	_ = l
+	if len(m.Balances) > 0 {
+		for _, e := range m.Balances {
+			l = e.Size()
+			n += 1 + l + sovQuery(uint64(l))
+		}
+	}
+	if m.Pagination != nil {
+		l = m.Pagination.Size()
+		n += 1 + l + sovQuery(uint64(l))
+	}
+	return n
+}
+
 func (m *QueryTotalSupplyRequest) Size() (n int) {
 	if m == nil {
 		return 0
@@ -2640,6 +2910,244 @@ func (m *QueryAllBalancesResponse) Unmarshal(dAtA []byte) error {
 	}
 	return nil
 }
+func (m *QuerySpendableBalancesRequest) 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: QuerySpendableBalancesRequest: wiretype end group for non-group")
+		}
+		if fieldNum <= 0 {
+			return fmt.Errorf("proto: QuerySpendableBalancesRequest: illegal tag %d (wire type %d)", fieldNum, wire)
+		}
+		switch fieldNum {
+		case 1:
+			if wireType != 2 {
+				return fmt.Errorf("proto: wrong wireType = %d for field Address", 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.Address = string(dAtA[iNdEx:postIndex])
+			iNdEx = postIndex
+		case 2:
+			if wireType != 2 {
+				return fmt.Errorf("proto: wrong wireType = %d for field Pagination", 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 m.Pagination == nil {
+				m.Pagination = &query.PageRequest{}
+			}
+			if err := m.Pagination.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 *QuerySpendableBalancesResponse) 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: QuerySpendableBalancesResponse: wiretype end group for non-group")
+		}
+		if fieldNum <= 0 {
+			return fmt.Errorf("proto: QuerySpendableBalancesResponse: illegal tag %d (wire type %d)", fieldNum, wire)
+		}
+		switch fieldNum {
+		case 1:
+			if wireType != 2 {
+				return fmt.Errorf("proto: wrong wireType = %d for field Balances", 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
+			}
+			m.Balances = append(m.Balances, types.Coin{})
+			if err := m.Balances[len(m.Balances)-1].Unmarshal(dAtA[iNdEx:postIndex]); err != nil {
+				return err
+			}
+			iNdEx = postIndex
+		case 2:
+			if wireType != 2 {
+				return fmt.Errorf("proto: wrong wireType = %d for field Pagination", 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 m.Pagination == nil {
+				m.Pagination = &query.PageResponse{}
+			}
+			if err := m.Pagination.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 *QueryTotalSupplyRequest) Unmarshal(dAtA []byte) error {
 	l := len(dAtA)
 	iNdEx := 0
diff --git a/x/bank/types/query.pb.gw.go b/x/bank/types/query.pb.gw.go
index 477363012121..2608b3642664 100644
--- a/x/bank/types/query.pb.gw.go
+++ b/x/bank/types/query.pb.gw.go
@@ -175,6 +175,78 @@ func local_request_Query_AllBalances_0(ctx context.Context, marshaler runtime.Ma
 
 }
 
+var (
+	filter_Query_SpendableBalances_0 = &utilities.DoubleArray{Encoding: map[string]int{"address": 0}, Base: []int{1, 1, 0}, Check: []int{0, 1, 2}}
+)
+
+func request_Query_SpendableBalances_0(ctx context.Context, marshaler runtime.Marshaler, client QueryClient, req *http.Request, pathParams map[string]string) (proto.Message, runtime.ServerMetadata, error) {
+	var protoReq QuerySpendableBalancesRequest
+	var metadata runtime.ServerMetadata
+
+	var (
+		val string
+		ok  bool
+		err error
+		_   = err
+	)
+
+	val, ok = pathParams["address"]
+	if !ok {
+		return nil, metadata, status.Errorf(codes.InvalidArgument, "missing parameter %s", "address")
+	}
+
+	protoReq.Address, err = runtime.String(val)
+
+	if err != nil {
+		return nil, metadata, status.Errorf(codes.InvalidArgument, "type mismatch, parameter: %s, error: %v", "address", err)
+	}
+
+	if err := req.ParseForm(); err != nil {
+		return nil, metadata, status.Errorf(codes.InvalidArgument, "%v", err)
+	}
+	if err := runtime.PopulateQueryParameters(&protoReq, req.Form, filter_Query_SpendableBalances_0); err != nil {
+		return nil, metadata, status.Errorf(codes.InvalidArgument, "%v", err)
+	}
+
+	msg, err := client.SpendableBalances(ctx, &protoReq, grpc.Header(&metadata.HeaderMD), grpc.Trailer(&metadata.TrailerMD))
+	return msg, metadata, err
+
+}
+
+func local_request_Query_SpendableBalances_0(ctx context.Context, marshaler runtime.Marshaler, server QueryServer, req *http.Request, pathParams map[string]string) (proto.Message, runtime.ServerMetadata, error) {
+	var protoReq QuerySpendableBalancesRequest
+	var metadata runtime.ServerMetadata
+
+	var (
+		val string
+		ok  bool
+		err error
+		_   = err
+	)
+
+	val, ok = pathParams["address"]
+	if !ok {
+		return nil, metadata, status.Errorf(codes.InvalidArgument, "missing parameter %s", "address")
+	}
+
+	protoReq.Address, err = runtime.String(val)
+
+	if err != nil {
+		return nil, metadata, status.Errorf(codes.InvalidArgument, "type mismatch, parameter: %s, error: %v", "address", err)
+	}
+
+	if err := req.ParseForm(); err != nil {
+		return nil, metadata, status.Errorf(codes.InvalidArgument, "%v", err)
+	}
+	if err := runtime.PopulateQueryParameters(&protoReq, req.Form, filter_Query_SpendableBalances_0); err != nil {
+		return nil, metadata, status.Errorf(codes.InvalidArgument, "%v", err)
+	}
+
+	msg, err := server.SpendableBalances(ctx, &protoReq)
+	return msg, metadata, err
+
+}
+
 var (
 	filter_Query_TotalSupply_0 = &utilities.DoubleArray{Encoding: map[string]int{}, Base: []int(nil), Check: []int(nil)}
 )
@@ -473,6 +545,26 @@ func RegisterQueryHandlerServer(ctx context.Context, mux *runtime.ServeMux, serv
 
 	})
 
+	mux.Handle("GET", pattern_Query_SpendableBalances_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_SpendableBalances_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_SpendableBalances_0(ctx, mux, outboundMarshaler, w, req, resp, mux.GetForwardResponseOptions()...)
+
+	})
+
 	mux.Handle("GET", pattern_Query_TotalSupply_0, func(w http.ResponseWriter, req *http.Request, pathParams map[string]string) {
 		ctx, cancel := context.WithCancel(req.Context())
 		defer cancel()
@@ -674,6 +766,26 @@ func RegisterQueryHandlerClient(ctx context.Context, mux *runtime.ServeMux, clie
 
 	})
 
+	mux.Handle("GET", pattern_Query_SpendableBalances_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_SpendableBalances_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_SpendableBalances_0(ctx, mux, outboundMarshaler, w, req, resp, mux.GetForwardResponseOptions()...)
+
+	})
+
 	mux.Handle("GET", pattern_Query_TotalSupply_0, func(w http.ResponseWriter, req *http.Request, pathParams map[string]string) {
 		ctx, cancel := context.WithCancel(req.Context())
 		defer cancel()
@@ -802,6 +914,8 @@ var (
 
 	pattern_Query_AllBalances_0 = runtime.MustPattern(runtime.NewPattern(1, []int{2, 0, 2, 1, 2, 2, 2, 3, 1, 0, 4, 1, 5, 4}, []string{"cosmos", "bank", "v1beta1", "balances", "address"}, "", runtime.AssumeColonVerbOpt(false)))
 
+	pattern_Query_SpendableBalances_0 = runtime.MustPattern(runtime.NewPattern(1, []int{2, 0, 2, 1, 2, 2, 2, 3, 1, 0, 4, 1, 5, 4}, []string{"cosmos", "bank", "v1beta1", "spendable_balances", "address"}, "", runtime.AssumeColonVerbOpt(false)))
+
 	pattern_Query_TotalSupply_0 = runtime.MustPattern(runtime.NewPattern(1, []int{2, 0, 2, 1, 2, 2, 2, 3}, []string{"cosmos", "bank", "v1beta1", "supply"}, "", runtime.AssumeColonVerbOpt(false)))
 
 	pattern_Query_SupplyOf_0 = runtime.MustPattern(runtime.NewPattern(1, []int{2, 0, 2, 1, 2, 2, 2, 3, 2, 4}, []string{"cosmos", "bank", "v1beta1", "supply", "by_denom"}, "", runtime.AssumeColonVerbOpt(false)))
@@ -820,6 +934,8 @@ var (
 
 	forward_Query_AllBalances_0 = runtime.ForwardResponseMessage
 
+	forward_Query_SpendableBalances_0 = runtime.ForwardResponseMessage
+
 	forward_Query_TotalSupply_0 = runtime.ForwardResponseMessage
 
 	forward_Query_SupplyOf_0 = runtime.ForwardResponseMessage

From f979395566fca80e086acd4f58f7ae1fe763093b Mon Sep 17 00:00:00 2001
From: Aleksandr Bezobchuk <aleks.bezobchuk@gmail.com>
Date: Sat, 19 Mar 2022 11:13:44 -0400
Subject: [PATCH 2/5] cl++

---
 CHANGELOG.md | 1 +
 1 file changed, 1 insertion(+)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 136af434525a..833f06b022f2 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -39,6 +39,7 @@ Ref: https://keepachangelog.com/en/1.0.0/
 
 ### Features
 
+* (x/bank) [\#11417](https://github.com/cosmos/cosmos-sdk/pull/11417) Introduce a new `SpendableBalances` gRPC query that retrieves an account's total (paginated) spenable balances.
 * (x/upgrade) [\#11116](https://github.com/cosmos/cosmos-sdk/pull/11116) `MsgSoftwareUpgrade` and  has been added to support v1beta2 msgs-based gov proposals.
 * [\#11308](https://github.com/cosmos/cosmos-sdk/pull/11308) Added a mandatory metadata field to Vote in x/gov v1beta2.
 * [\#10977](https://github.com/cosmos/cosmos-sdk/pull/10977) Now every cosmos message protobuf definition must be extended with a ``cosmos.msg.v1.signer`` option to signal the signer fields in a language agnostic way.

From 7a2f9fd0abc2fd32dba11431fd67b4542c35a6c6 Mon Sep 17 00:00:00 2001
From: Aleksandr Bezobchuk <aleks.bezobchuk@gmail.com>
Date: Tue, 22 Mar 2022 11:28:50 -0400
Subject: [PATCH 3/5] tests++

---
 x/bank/keeper/grpc_query_test.go | 53 ++++++++++++++++++++++++++++++++
 x/bank/keeper/keeper_test.go     |  2 +-
 x/bank/types/querier.go          |  7 +++++
 3 files changed, 61 insertions(+), 1 deletion(-)

diff --git a/x/bank/keeper/grpc_query_test.go b/x/bank/keeper/grpc_query_test.go
index ed58dcb7f356..0e1d8abd3de5 100644
--- a/x/bank/keeper/grpc_query_test.go
+++ b/x/bank/keeper/grpc_query_test.go
@@ -3,12 +3,15 @@ package keeper_test
 import (
 	gocontext "context"
 	"fmt"
+	"time"
 
+	"github.com/cosmos/cosmos-sdk/baseapp"
 	sdktestutil "github.com/cosmos/cosmos-sdk/testutil"
 	"github.com/cosmos/cosmos-sdk/testutil/testdata"
 	sdk "github.com/cosmos/cosmos-sdk/types"
 	"github.com/cosmos/cosmos-sdk/types/query"
 	authtypes "github.com/cosmos/cosmos-sdk/x/auth/types"
+	vestingtypes "github.com/cosmos/cosmos-sdk/x/auth/vesting/types"
 	"github.com/cosmos/cosmos-sdk/x/bank/testutil"
 	"github.com/cosmos/cosmos-sdk/x/bank/types"
 	minttypes "github.com/cosmos/cosmos-sdk/x/mint/types"
@@ -87,6 +90,56 @@ func (suite *IntegrationTestSuite) TestQueryAllBalances() {
 	suite.Nil(res.Pagination.NextKey)
 }
 
+func (suite *IntegrationTestSuite) TestSpendableBalances() {
+	app, ctx, queryClient := suite.app, suite.ctx, suite.queryClient
+	_, _, addr := testdata.KeyTestPubAddr()
+	ctx = ctx.WithBlockTime(time.Now())
+
+	_, err := queryClient.SpendableBalances(sdk.WrapSDKContext(ctx), &types.QuerySpendableBalancesRequest{})
+	suite.Require().Error(err)
+
+	pageReq := &query.PageRequest{
+		Key:        nil,
+		Limit:      2,
+		CountTotal: false,
+	}
+	req := types.NewQuerySpendableBalancesRequest(addr, pageReq)
+
+	res, err := queryClient.SpendableBalances(sdk.WrapSDKContext(ctx), req)
+	suite.Require().NoError(err)
+	suite.Require().NotNil(res)
+	suite.True(res.Balances.IsZero())
+
+	fooCoins := newFooCoin(50)
+	barCoins := newBarCoin(30)
+
+	origCoins := sdk.NewCoins(fooCoins, barCoins)
+	acc := app.AccountKeeper.NewAccountWithAddress(ctx, addr)
+	acc = vestingtypes.NewContinuousVestingAccount(
+		acc.(*authtypes.BaseAccount),
+		sdk.NewCoins(fooCoins),
+		ctx.BlockTime().Unix(),
+		ctx.BlockTime().Add(time.Hour).Unix(),
+	)
+
+	app.AccountKeeper.SetAccount(ctx, acc)
+	suite.Require().NoError(testutil.FundAccount(app.BankKeeper, ctx, acc.GetAddress(), origCoins))
+
+	// move time forward for some tokens to vest
+	ctx = ctx.WithBlockTime(ctx.BlockTime().Add(30 * time.Minute))
+	queryHelper := baseapp.NewQueryServerTestHelper(ctx, app.InterfaceRegistry())
+	types.RegisterQueryServer(queryHelper, app.BankKeeper)
+	queryClient = types.NewQueryClient(queryHelper)
+
+	res, err = queryClient.SpendableBalances(sdk.WrapSDKContext(ctx), req)
+	suite.Require().NoError(err)
+	suite.Require().NotNil(res)
+	suite.Equal(2, res.Balances.Len())
+	suite.Nil(res.Pagination.NextKey)
+	suite.EqualValues(30, res.Balances[0].Amount.Int64())
+	suite.EqualValues(25, res.Balances[1].Amount.Int64())
+}
+
 func (suite *IntegrationTestSuite) TestQueryTotalSupply() {
 	app, ctx, queryClient := suite.app, suite.ctx, suite.queryClient
 	res, err := queryClient.TotalSupply(gocontext.Background(), &types.QueryTotalSupplyRequest{})
diff --git a/x/bank/keeper/keeper_test.go b/x/bank/keeper/keeper_test.go
index 760c0289d3e4..1ccb47f9fc7d 100644
--- a/x/bank/keeper/keeper_test.go
+++ b/x/bank/keeper/keeper_test.go
@@ -95,7 +95,7 @@ func (suite *IntegrationTestSuite) initKeepersWithmAccPerms(blockedAddrs map[str
 
 func (suite *IntegrationTestSuite) SetupTest() {
 	app := simapp.Setup(suite.T(), false)
-	ctx := app.BaseApp.NewContext(false, tmproto.Header{})
+	ctx := app.BaseApp.NewContext(false, tmproto.Header{Time: time.Now()})
 
 	app.AccountKeeper.SetParams(ctx, authtypes.DefaultParams())
 	app.BankKeeper.SetParams(ctx, types.DefaultParams())
diff --git a/x/bank/types/querier.go b/x/bank/types/querier.go
index 1ef0093386e4..117b87f17c68 100644
--- a/x/bank/types/querier.go
+++ b/x/bank/types/querier.go
@@ -25,6 +25,13 @@ func NewQueryAllBalancesRequest(addr sdk.AccAddress, req *query.PageRequest) *Qu
 	return &QueryAllBalancesRequest{Address: addr.String(), Pagination: req}
 }
 
+// NewQuerySpendableBalancesRequest creates a new instance of a
+// QuerySpendableBalancesRequest.
+// nolint:interfacer
+func NewQuerySpendableBalancesRequest(addr sdk.AccAddress, req *query.PageRequest) *QuerySpendableBalancesRequest {
+	return &QuerySpendableBalancesRequest{Address: addr.String(), Pagination: req}
+}
+
 // QueryTotalSupplyParams defines the params for the following queries:
 //
 // - 'custom/bank/totalSupply'

From deecd03fe2b3051697f04a9e26b1d3cd1f7d7fd0 Mon Sep 17 00:00:00 2001
From: Aleksandr Bezobchuk <aleks.bezobchuk@gmail.com>
Date: Tue, 22 Mar 2022 13:44:53 -0400
Subject: [PATCH 4/5] updates

---
 x/bank/keeper/grpc_query.go | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/x/bank/keeper/grpc_query.go b/x/bank/keeper/grpc_query.go
index 163947bcb85f..8233da109455 100644
--- a/x/bank/keeper/grpc_query.go
+++ b/x/bank/keeper/grpc_query.go
@@ -81,9 +81,6 @@ func (k BaseKeeper) SpendableBalances(ctx context.Context, req *types.QuerySpend
 	if req == nil {
 		return nil, status.Error(codes.InvalidArgument, "empty request")
 	}
-	if req.Address == "" {
-		return nil, status.Error(codes.InvalidArgument, "address cannot be empty")
-	}
 
 	addr, err := sdk.AccAddressFromBech32(req.Address)
 	if err != nil {

From ff133064bf7b50673612908c447c4e45d7d3b8f0 Mon Sep 17 00:00:00 2001
From: Aleksandr Bezobchuk <aleks.bezobchuk@gmail.com>
Date: Tue, 22 Mar 2022 13:46:25 -0400
Subject: [PATCH 5/5] updates

---
 x/bank/keeper/grpc_query.go | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)

diff --git a/x/bank/keeper/grpc_query.go b/x/bank/keeper/grpc_query.go
index 8233da109455..032e9e5ecfff 100644
--- a/x/bank/keeper/grpc_query.go
+++ b/x/bank/keeper/grpc_query.go
@@ -91,13 +91,10 @@ func (k BaseKeeper) SpendableBalances(ctx context.Context, req *types.QuerySpend
 
 	balances := sdk.NewCoins()
 	accountStore := k.getAccountStore(sdkCtx, addr)
+	zeroAmt := sdk.ZeroInt()
 
 	pageRes, err := query.Paginate(accountStore, req.Pagination, func(key, value []byte) error {
-		var amount sdk.Int
-		if err := amount.Unmarshal(value); err != nil {
-			return err
-		}
-		balances = append(balances, sdk.NewCoin(string(key), amount))
+		balances = append(balances, sdk.NewCoin(string(key), zeroAmt))
 		return nil
 	})
 	if err != nil {