How do i prevent an overwrite on a key value in redis?
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Also see: https://www.lightnetics.com/post/10426
This article assumes you have installed and connected to the redis server.
There's a redis command called setnx, that only sets the value if the key does not exist.
127.0.0.1:6379> set song1 "the tide is high" OK 127.0.0.1:6379> setnx song1 "that's entertainment" (integer) 0 127.0.0.1:6379> get song1 "the tide is high" 127.0.0.1:6379> This is the same as using the NX option for set.
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