Redis is an open-source, networked, in-memory, key-value data store with optional durability.
Redis as Node.js also runs single-threaded.
Some helpful commands:
SET keyandGET keyKEYS *list all keys. Not for production environment.EXISTS key
redis-cli doesn't allow to execte scripts only commands.
C:\Program Files\Redis>redis-cli.exe -h
redis-cli 2.4.6 (git:26cdd13a)
Usage: redis-cli [OPTIONS] [cmd [arg [arg ...]]]
-h Server hostname (default: 127.0.0.1)
-p Server port (default: 6379)
-s Server socket (overrides hostname and port)
-a Password to use when connecting to the server
-r Execute specified command N times
-i When -r is used, waits seconds per command.
It is possible to specify sub-second times like -i 0.1.
-n Database number
-x Read last argument from STDIN
-d Multi-bulk delimiter in for raw formatting (default: \n)
--raw Use raw formatting for replies (default when STDOUT is not a tty)
--latency Enter a special mode continuously sampling latency.
--help Output this help and exit
--version Output version and exit
Examples:
cat /etc/passwd | redis-cli -x set mypasswd
redis-cli get mypasswd
redis-cli -r 100 lpush mylist x
redis-cli -r 100 -i 1 info | grep used_memory_human:
When no command is given, redis-cli starts in interactive mode.
Type "help" in interactive mode for information on available commands.
node_redis is a node.js redis client.
Create new Node.js project, then run npm install redis --save in Terminal.
Hint: drap&drop redis-cli executable into Eclipse project to create comfortable link (see above).
Example
var redis = require("redis"),
client = redis.createClient();
// if you'd like to select database 3, instead of 0 (default), call
// client.select(3, function() { /* ... */ });
client.on("error", function (err) {
console.log("Error " + err);
});
client.set("string key", "string val", redis.print);
client.hset("hash key", "hashtest 1", "some value", redis.print);
client.hset(["hash key", "hashtest 2", "some other value"], redis.print);
client.hkeys("hash key", function (err, replies) {
console.log(replies.length + " replies:");
replies.forEach(function (reply, i) {
console.log(" " + i + ": " + reply);
});
client.quit();
});