kth-node-redis

Redis client module for Node.js. (Everything with Promises)

Usage

const redis = require('kth-node-redis')

// basics
redis('default', {
  /* optional redis client config */
})
  .then(function (client) {
    return client.getAsync('key')
  })
  .then(function (value) {
    // do something with value
  })
  .catch(function (err) {
    // handle error
  })

// multi
redis('default', {
  /* optional redis client config */
})
  .then(function (client) {
    return client.multi().hmset('foo', { value: 'bar' }).expire('foo', 30).hgetall('foo').execAsync()
  })
  .then(function (results) {
    // results[1] => 'OK'
    // results[1] => 1
    // results[2] => { value: 'bar' }
    // results will depend on what commands are executed
  })
  .catch(function (err) {
    // handle error
  })

// quit if needed
redis.quit('default')

Options

• name optional name, defaults to default. Use the same name to get the same client instance or re-create it. Use a new name to create a new instance.
• options optional config for the Redis client. Has a default retry strategy. See below for details. For info about the Redis client options, see https://www.npmjs.com/package/redis.

Default retry strategy

function retry_strategy(options) {
  if (options.error.code === 'ECONNREFUSED') {
    return new Error('Connection refused by server.')
  }

  if (options.total_retry_time > 1000 * 60 * 60) {
    return new Error('Retry time exhausted')
  }

  if (options.times_connected > 10) {
    return undefined
  }

  return Math.max(options.attempt * 100, 3000)
}