Redis - Examples

 In an eCommerce site

• Preserve user cart information
• User browsing history
• User past purchases
• Automatically Expire sessions on timeout

Redis - Remote Dictionary Service

Redis - open-source key-value database server

	#https://try.redis.io/#run
	SET - allows you to set a key to a value in Redis.
	SET cart_session1 "SKU110,SKU121,SKU142"
	GET - GET allows you to get the keys you've set.
	GET cart_session1
	SETNX - This key will set a value only if the key does not exist.
	SET key1 value1
	SETNX key1 value2
	SETNX key2 value2
	SET key1 value1
	SETNX key1 value2
	SET cart_session1 "SKU110,SKU121,SKU142"
	SETNX cart_session1 "SKU110,SKU121,SKU144"
	GET cart_session1
	MSET - MSET is like SET, but you can set multiple keys together in one command. Here's how it works:
	MSET key1 "value1" key2 "value2" key3 "value3"
	MSET cart_session1 "SKU110,SKU121,SKU142" cart_session2 "SKU110,SKU121,SKU144" cart_session3 "SKU110,SKU121,SKU148"
	MGET
	MGET is similar to GET, but it can return multiple values at once, like this:
	MGET key1 key2 key3 key4
	MGET cart_session1 cart_session2 cart_session3
	DEL - This command deletes a key – simple enough, right?
	Here's an example:
	SET key value
	GET key # gives you "value"
	DEL key
	GET key # null
	DEL cart_session3
	DEL cart_session2
	EXPIRE - The EXPIRE command is used to set an expiration timer to a key. Technically it's not a timer, but a kill timestamp beyond which the key will always return null unless it's set again.
	EXPIRE cart_session1 10

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Keep Experimenting!!!