Getting specific Data with an API

Question

I have an API that I want to read certain data from, it works for most of the data but not for one. Namely, the part that I show below, I have to navigate to the "mmr" and there it fails from the number, the season. Maybe someone can help me, I have here the program code and the part which gets the API, in addition I link the API once. Thanks in advance! https://www.npmjs.com/package/r6api.js/v/1.6.0#typescript-integrations-1

const id = await r6api.getId(platform, username).then(el => el[0].userId);
const rank = await r6api.getRank(platform, id, { regions: ['euw'] }).then(el => el[0]);
console.log(`${username} has  ${rank.seasons.number['-1'].id} mmr.`);

And the result of the API for the getRank

[
  {
    id: '0b95544b-0228-49a7-b338-6d15cfbc3d6a',
    seasons: {
      '16': {
        id: 16,
        name: 'Shifting Tides',
        regions: {
          emea: {
            region: 'emea',
            skillMean: 30.663307433,
            skillStdev: 7.5624420961,
            current: {
              name: 'Unranked',
              id: 0,
              mmr: 3066,
              image: 'https://i.imgur.com/bvnVUEm.png'
            },
            max: {
              name: 'Unranked',
              id: 0,
              mmr: 0,
              image: 'https://i.imgur.com/bvnVUEm.png'
            },
            lastMatch: { mmrChange: 0, won: false, skillStdevChange: -0.0048172252 },
            previousMmr: 0,
            nextMmr: 0,
            topRankPosition: 0,
            kills: 0,
            deaths: 0,
            wins: 0,
            losses: 0,
            matches: 0,
            abandons: 0,
            updateTime: '1970-01-01T00:00:00+00:00'
          }
        }
      }
    }
  }
]

Answer 1

If its the MMR alone you want I made this ridiculous method that works, it currently just returns the MMR but you can sort of figure it out:

const id = await r6api.getId("uplay", "username").then(el => el[0].userId);
const rank = await r6api.getRank("uplay", id, { regions: ['euw'] }).then(el => el[0]);
const info = Object.values(Object.values(Object.values((Object.values(rank))[1])[0])[4])[0]
console.log(info.max.mmr)