Retrieve specific values from a collection in sailsjs model

Merchant.js

module.exports = {

attributes: {
    name:{
      type:'string',
      required:true
    },
    drinks:{
      collection:'Drinks',
      via:'merchant'
    }
  }
};

Drinks.js

module.exports = {

  attributes: {
    name:{
      type:'string',
      required:true
    },
    category:{
      model:'Category'
    },
    merchant:{
      model:'Merchant'
    }
  }

};

Category.js

module.exports = {

  attributes: {
    name:{
      type:'string',
      required:true,
      unique: true
    }
  }
};

I want to retrieve the merchant with the drinks associated with the given input category. Can someone help me in the find query.

Thanks