Why you used client.SET in this module? What is the Used

[amitjoshi22]

signRefreshToken: (userId) => {
return new Promise((resolve, reject) => {
const payload = {}
const secret = process.env.REFRESH_TOKEN_SECRET
const options = {
expiresIn: '1y',
issuer: 'pickurpage.com',
audience: userId,
}
JWT.sign(payload, secret, options, (err, token) => {
if (err) {
console.log(err.message)
// reject(err)
reject(createError.InternalServerError())
}

    client.SET(userId, token, 'EX', 365 * 24 * 60 * 60, (err, reply) => {
      if (err) {
        console.log(err.message)
        reject(createError.InternalServerError())
        return
      }
      resolve(token)
    })
  })
})

},

[Ameprizzo]

In summary, this code is setting a key-value pair in Redis where the key is the userId and the value is the token, with a time to live of 365 days, and it returns a promise to handle the success or failure of the operation.