planka/server/api/helpers/get-subscriptions-by-user-for-card.js

module.exports = {
  inputs: {
    id: {
      type: 'json',
      custom: (value) => _.isString(value) || _.isArray(value),
      required: true,
    },
    userId: {
      type: 'json',
      required: true,
    },
  },

  async fn(inputs, exits) {
    const cardSubscriptions = await sails.helpers.getCardSubscriptions({
      cardId: inputs.id,
      userId: inputs.userId,
    });

    return exits.success(cardSubscriptions);
  },
};