/
grpc_query.go
73 lines (58 loc) · 1.86 KB
/
grpc_query.go
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package keeper
import (
"context"
"fmt"
"github.com/cosmos/cosmos-sdk/store/prefix"
sdk "github.com/cosmos/cosmos-sdk/types"
sdkerrors "github.com/cosmos/cosmos-sdk/types/errors"
"github.com/cosmos/cosmos-sdk/types/query"
"google.golang.org/grpc/codes"
"google.golang.org/grpc/status"
"github.com/bianjieai/tibc-go/modules/tibc/apps/mt_transfer/types"
)
var _ types.QueryServer = Keeper{}
// ClassTrace implements the Query/ClassTrace gRPC method
func (q Keeper) ClassTrace(c context.Context, req *types.QueryClassTraceRequest) (*types.QueryClassTraceResponse, error) {
if req == nil {
return nil, status.Error(codes.InvalidArgument, "empty request")
}
hash, err := types.ParseHexHash(req.Hash)
if err != nil {
return nil, status.Error(codes.InvalidArgument, fmt.Sprintf("invalid class trace hash %s, %s", req.Hash, err))
}
ctx := sdk.UnwrapSDKContext(c)
classTrace, found := q.GetClassTrace(ctx, hash)
if !found {
return nil, status.Error(
codes.NotFound,
sdkerrors.Wrap(types.ErrTraceNotFound, req.Hash).Error(),
)
}
return &types.QueryClassTraceResponse{
ClassTrace: &classTrace,
}, nil
}
// ClassTraces implements the Query/ClassTraces gRPC method
func (q Keeper) ClassTraces(c context.Context, req *types.QueryClassTracesRequest) (*types.QueryClassTracesResponse, error) {
if req == nil {
return nil, status.Error(codes.InvalidArgument, "empty request")
}
ctx := sdk.UnwrapSDKContext(c)
traces := types.Traces{}
store := prefix.NewStore(ctx.KVStore(q.storeKey), types.ClassTraceKey)
pageRes, err := query.Paginate(store, req.Pagination, func(_, value []byte) error {
result, err := q.UnmarshalClassTrace(value)
if err != nil {
return err
}
traces = append(traces, result)
return nil
})
if err != nil {
return nil, err
}
return &types.QueryClassTracesResponse{
ClassTraces: traces.Sort(),
Pagination: pageRes,
}, nil
}