Twitter Verification | uPort Firebase Cloud Function

.js

**
 * VerifyTwitter
 * @param {object} req
 * @param {object} res
 */
const verifyTwitter = (req, res) => {
  var params = {user_id: req.user.firebase.identities['twitter.com'][0]}
  TwitterClient.get('users/lookup', params, function (error, user, response) {
    if (!error) {
      const twitterProfile = user[0]
      uportCredentials.receive(req.body.JWT)
      .then(profile => {
        uportCredentials.attest({
          sub: profile.address,
          claim: {
            verifcationTwitter: {
              name: twitterProfile.name,
              screenName: twitterProfile.screen_name,
              url: twitterProfile.url,
              followers: twitterProfile.followers_count,
              friends: twitterProfile.friends_count,
              verified: twitterProfile.verified ? twitterProfile.verified : false
            }
          }
        })
        .then(attestation => {
          const url = `me.uport:add?attestations=${attestation}`
          uportCredentials.push(profile.pushToken, profile.publicEncKey, {url}).then(response => {
            database.databaseWrite({
              writeType: 'push',
              branch: ['request', 'verification'],
              payload: {
                ...response
              }
            })
          })
        }).catch(err => {
          database.databaseWrite({
            writeType: 'update',
            branch: ['request', 'verifcation', 'error'],
            payload: {
              ...err
            }
          })
        })
      })
    } else {
      console.log(error)
    }
  })
  database.databaseWrite({
    writeType: 'push',
    branch: ['request', 'verify'],
    payload: {
      data: req.user,
      meta: {
        status: 'verified',
        category: 'twitter',
        type: 'verify'
      }
    }
  })
  res.json({user: req.user}).send()
}