@r/api-client/models2/mixins/votable.js

node and browser reddit api library

import mixin from './mixin';
import votes from '../../apis/VoteEndpoint';

export function upvote (apiOptions) {
  // If already upvoted, cancel out the upvote.
  return this._vote(apiOptions, this.likes === 1 ? 0 : 1);
};

export function downvote (apiOptions) {
  // If already downvoted, cancel out the upvote.
  return this._vote(apiOptions, this.likes === -1 ? 0 : -1);
};

export function _vote (apiOptions, direction) {
  const oldModel = this;

  const stub = this.stub('likes', direction, async (resolve, reject) => {
    try {
      const endpoint = direction === 0 ? votes.del : votes.post;
      await endpoint(apiOptions, { thingId: oldModel.name, direction });
      return stub;
    } catch (e) {
      console.log(e);
      throw oldModel;
    }
  });

  return stub;
};

export default (cls) => mixin(cls, { upvote, downvote, _vote });