CODEWITHSUNDEEP
node.jsredis
Brick Yang
Brick Yang

Reputation: 5477

What's the proper way to set prefix of key in Redis?

I am using Redis to store the captcha and mobile code temporarily. When I set captcha, I use:Redis.set('captcha' + remoteIP, text);

I can see the key is captcha:127.0.0.1 in GUI manager. Redis recognized the captcha as prefix automatically. If I use Redis.set('captcha:' + remoteIP, text), the key will be captcha::127.0.0.1.

But when I set the code by Redis.set('code' + mobile, code);, the actual key is code1xxxxxxxxxx, no prefix. I must use Redis.set('code:' + mobile, code) then it works.

I'm using latest node_redisclient in Node.js 5.2.0.

Upvotes: 0

Views: 3878

Answers (1)

Paul
Paul

Reputation: 141829

Your variable remoteIP already contains a :. Redis didn't recognize captcha was a prefix and add a colon, it was just told to use whatever the expression 'captcha' + remoteIP evaluated to as a key, in this case that was captcha:127.0.0.1, since remoteIP === ':127.0.0.1.

Upvotes: 3

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