How to handle errors in Ruby while connecting to Redis?

Asked Aug 15 '22 at 03:36

Active Aug 15 '22 at 03:36

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I have a code in Ruby (as a Logstash plugin) in which I connect to Redis and get information like what is suggested in (How to use redis inside logstash filter?) as below:

require "redis"
$redis = Redis.new(host: "REDIS_HOST", port: REDIS_PORT, db: REDIS_DB)

@my_data = $redis.hget("DATA_KEY", "HASH_FIELD").to_i

Everything works OK generally; however, I want to know:

1- Which possible errors might be faced by the code while connecting to Redis or getting data (e.g. Redis is unreachable or DATA_KEY or HASH_FIELD does not exist)

2- How should we handle such errors?

asked Aug 15 '22 at 03:36

Mohammadreza Sahelgozin

1

https://github.com/redis/redis-rb/blob/master/lib/redis/errors.rb is a list of potential errors – Chiperific Aug 15 '22 at 03:43
2

Basics of error handling: https://rollbar.com/guides/ruby/how-to-handle-exceptions-in-ruby/ – Chiperific Aug 15 '22 at 03:45

How to handle errors in Ruby while connecting to Redis?

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