export default (state = {}, action) => {
  switch(action.type) {
    case 'addConnection':
      return    {
        connections: {
          ...state.connections, {
          action.compositeKey: action.connection
        }
      }

    default:
      return state
  }
}

const reducer = (state = {}, action) => {
  switch (action.type) {
    case 'addConnection':
      return Object.assign({}, state, {
        connections: [
           ...state.connections,
           {
             [actions.compositeKey]: action.connection
           }
        ]
      });
    default:
      return state;
  }
}

export default reducer;

const reducer = (state = {}, {type, compositeKey, connection}) => {
  switch (type) {
    case 'addConnection':
      return Object.assign({}, state, {
        connections: state.connections.concat({
          [compositeKey]: connection
        })
      });
    default:
      return state;
  }
}

export default reducer;

import Immutable from 'immutable';

const reducer = (state = Immutable.Map(), {type, compositeKey, connection}) => {
  switch (type) {
    case 'addConnection':
      return state.set(
        'connections',
        state.get('connections').concat({
          [compositeKey]: connection
        })
      );
    default:
      return state;
  }
}

export default reducer;

const reducer = (state = {}, {type, compositeKey, connection}) => {
  switch (type) {
    case 'addConnection':
      var newData={};
      newData[compositeKey]=connection;
      return Object.assign({}, state, newData)
      });
    default:
      return state;
  }
}

export default reducer;