code.vegaprotocol.io/vega@v0.79.0/datanode/gateway/graphql/instrument_resolver.go (about)

     1  // Copyright (C) 2023 Gobalsky Labs Limited
     2  //
     3  // This program is free software: you can redistribute it and/or modify
     4  // it under the terms of the GNU Affero General Public License as
     5  // published by the Free Software Foundation, either version 3 of the
     6  // License, or (at your option) any later version.
     7  //
     8  // This program is distributed in the hope that it will be useful,
     9  // but WITHOUT ANY WARRANTY; without even the implied warranty of
    10  // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    11  // GNU Affero General Public License for more details.
    12  //
    13  // You should have received a copy of the GNU Affero General Public License
    14  // along with this program.  If not, see <http://www.gnu.org/licenses/>.
    15  
    16  package gql
    17  
    18  import (
    19  	"context"
    20  	"errors"
    21  
    22  	types "code.vegaprotocol.io/vega/protos/vega"
    23  )
    24  
    25  var ErrUnsupportedProduct = errors.New("unsupported product")
    26  
    27  type myInstrumentResolver VegaResolverRoot
    28  
    29  func (r *myInstrumentResolver) Product(ctx context.Context, obj *types.Instrument) (Product, error) {
    30  	switch obj.GetProduct().(type) {
    31  	case *types.Instrument_Future:
    32  		return obj.GetFuture(), nil
    33  	case *types.Instrument_Spot:
    34  		return obj.GetSpot(), nil
    35  	case *types.Instrument_Perpetual:
    36  		return obj.GetPerpetual(), nil
    37  	default:
    38  		return nil, ErrUnsupportedProduct
    39  	}
    40  }