/
grpc_query.go
115 lines (88 loc) · 3.73 KB
/
grpc_query.go
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package keeper
import (
"context"
"google.golang.org/grpc/codes"
"google.golang.org/grpc/status"
sdk "github.com/cosmos/cosmos-sdk/types"
"github.com/cosmos/cosmos-sdk/x/bank/types"
)
var _ types.QueryServer = Keeper{}
// Balance implements the Query/Balance gRPC method
func (k Keeper) Balance(ctx context.Context, req *types.QueryBalanceRequest) (*types.QueryBalanceResponse, 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")
}
if req.Denom == "" {
return nil, status.Error(codes.InvalidArgument, "invalid denom")
}
sdkCtx := sdk.UnwrapSDKContext(ctx)
address, err := sdk.AccAddressFromBech32(req.Address)
if err != nil {
return nil, status.Errorf(codes.InvalidArgument, "invalid address: %s", err.Error())
}
balance := k.GetBalance(sdkCtx, address, req.Denom)
return &types.QueryBalanceResponse{Balance: &balance}, nil
}
// AllBalances implements the Query/AllBalances gRPC method
func (k Keeper) AllBalances(ctx context.Context, req *types.QueryAllBalancesRequest) (*types.QueryAllBalancesResponse, error) {
return k.BaseKeeper.AllBalances(ctx, req)
}
// SpendableBalances implements a gRPC query handler for retrieving an account's
// spendable balances.
func (k Keeper) SpendableBalances(ctx context.Context, req *types.QuerySpendableBalancesRequest) (*types.QuerySpendableBalancesResponse, error) {
return k.BaseKeeper.SpendableBalances(ctx, req)
}
// TotalSupply implements the Query/TotalSupply gRPC method
func (k Keeper) TotalSupply(ctx context.Context, req *types.QueryTotalSupplyRequest) (*types.QueryTotalSupplyResponse, error) {
sdkCtx := sdk.UnwrapSDKContext(ctx)
totalSupply, pageRes, err := k.GetPaginatedTotalSupply(sdkCtx, req.Pagination)
if err != nil {
return nil, status.Error(codes.Internal, err.Error())
}
return &types.QueryTotalSupplyResponse{Supply: totalSupply, Pagination: pageRes}, nil
}
// SupplyOf implements the Query/SupplyOf gRPC method
func (k Keeper) SupplyOf(c context.Context, req *types.QuerySupplyOfRequest) (*types.QuerySupplyOfResponse, error) {
if req == nil {
return nil, status.Error(codes.InvalidArgument, "empty request")
}
if req.Denom == "" {
return nil, status.Error(codes.InvalidArgument, "invalid denom")
}
ctx := sdk.UnwrapSDKContext(c)
supply := k.GetSupply(ctx, req.Denom)
return &types.QuerySupplyOfResponse{Amount: sdk.NewCoin(req.Denom, supply.Amount)}, nil
}
// Params implements the gRPC service handler for querying x/bank parameters.
func (k Keeper) Params(ctx context.Context, req *types.QueryParamsRequest) (*types.QueryParamsResponse, error) {
if req == nil {
return nil, status.Errorf(codes.InvalidArgument, "empty request")
}
sdkCtx := sdk.UnwrapSDKContext(ctx)
params := k.GetParams(sdkCtx)
return &types.QueryParamsResponse{Params: params}, nil
}
// DenomsMetadata implements Query/DenomsMetadata gRPC method.
func (k Keeper) DenomsMetadata(c context.Context, req *types.QueryDenomsMetadataRequest) (*types.QueryDenomsMetadataResponse, error) {
return k.BaseKeeper.DenomsMetadata(c, req)
}
// DenomMetadata implements Query/DenomMetadata gRPC method.
func (k Keeper) DenomMetadata(c context.Context, req *types.QueryDenomMetadataRequest) (*types.QueryDenomMetadataResponse, error) {
if req == nil {
return nil, status.Errorf(codes.InvalidArgument, "empty request")
}
if req.Denom == "" {
return nil, status.Error(codes.InvalidArgument, "invalid denom")
}
ctx := sdk.UnwrapSDKContext(c)
metadata, found := k.GetDenomMetaData(ctx, req.Denom)
if !found {
return nil, status.Errorf(codes.NotFound, "client metadata for denom %s", req.Denom)
}
return &types.QueryDenomMetadataResponse{
Metadata: metadata,
}, nil
}