CODEWITHSUNDEEP
redis
Sogartar
Sogartar

Reputation: 2175

Redis: atomic get if key exists?

How can you check if a key exists and get its value if it does?

I am concerned with concurrency problems. Fox example

EXISTS foo

followed by

GET foo

There will be a problem if the key is deleted between EXISTS and GET. How should you deal with this?

Upvotes: 0

Views: 2479

Answers (1)

user3227262
user3227262

Reputation: 583

Only GET method is sufficient in your use case. Doing a GET on any key returns the Value of that key if the key is set, otherwise it simply returns a (nil).

Upvotes: 1

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