crimson.core — com.nilenso/crimson 1.1.0

decr clj

(decr conn-or-pool k)

Decrements the numeric value of a key. https://redis.io/commands/decr

Params:

• conn-or-pool: An instance of Jedis/JedisPool
• k: a string key

delete clj

(delete conn-or-pool k)

Deletes a key from redis.

Params:

• conn-or-pool: An instance of Jedis/JedisPool
• k: a string key

discard-transaction clj

(discard-transaction transaction)

Discards the current transaction when called inside a with-multi block.

eval clj

(eval conn-or-pool script keys args)

Evaluates a Lua script in Redis. https://redis.io/commands/eval

Params:

• conn-or-pool: An instance of Jedis/JedisPool
• script: the Lua script to be run
• keys: a list of keys to be used as arguments to the script
• args: a list of arguments (which are not keys) to be used by the script

exists? clj

(exists? conn-or-pool k)

Check if a key exists. Returns true/false. https://redis.io/commands/exists

Params:

• conn-or-pool: An instance of Jedis/JedisPool
• k: a string key

expire clj

(expire conn-or-pool k seconds)

Sets the TTL of a key. https://redis.io/commands/expire

Params:

• conn-or-pool: An instance of Jedis/JedisPool
• k: a string key
• seconds: the TTL in seconds

expire-at clj

(expire-at conn-or-pool k unix-timestamp)

Sets the TTL of a key to expire at a particular time. https://redis.io/commands/expireat

Params:

• conn-or-pool: An instance of Jedis/JedisPool
• k: a string key
• unix-timestamp: the Unix epoch representing the expiration date, as a Long

flush-all! clj

(flush-all! conn-or-pool)

Removes all keys from all databases in redis

Params:

• conn-or-pool: An instance of Jedis/JedisPool

get clj

(get conn-or-pool k)

Reads a key from redis.

Params:

• conn-or-pool: An instance of Jedis/JedisPool
• k: a string key

hdel clj

(hdel conn-or-pool key & fields)

Removes the specified fields from the hash stored at key Params:

• conn-or-pool: An instance of Jedis/JedisPool/JedisCluster
• key: a string key
• field: a variadic string fields

hget clj

(hget conn-or-pool key field)

Returns the value associated with field in the hash stored at key Params:

• conn-or-pool: An instance of Jedis/JedisPool/JedisCluster
• key: a string key
• field: a string field

hgetall clj

(hgetall conn-or-pool k)

Returns all fields and values of the hash stored for a given key

• conn-or-pool: An instance of Jedis/JedisPool/JedisCluster
• k: a string key

hset clj

(hset conn-or-pool k value)

Writes a clojure map against a key in redis Params:

• conn-or-pool: An instance of Jedis/JedisPool/JedisCluster
• k: a string key
• value: a clojure map

incr clj

(incr conn-or-pool k)

Increments the numeric value of a key.

https://redis.io/commands/incr

Params:

• conn-or-pool: An instance of Jedis/JedisPool
• k: a string key

iteration-start-cursor clj

mget clj

(mget conn-or-pool keys)

Returns the values of all specified keys. For every key that does not hold a string value or does not exist, the special value nil is returned.

Params:

• conn-or-pool: An instance of Jedis/JedisPool
• keys: A list of keys

mset clj

(mset conn-or-pool key-value-pairs)

Sets the given keys to their respective values.

Params:

• conn-or-pool: An instance of Jedis/JedisPool
• key-value-pairs: A list of key-value pairs

sadd clj

(sadd conn-or-pool key & members)

Add the specified members to the set stored at key

Params:

• conn-or-pool: An instance of Jedis/JedisPool/JedisCluster
• k: a string key
• v: a variadic string values

scan clj

(scan conn-or-pool key-pattern)

Returns a set of all keys that match the provided pattern https://redis.io/commands/scan Params:

• conn-or-pool: An instance of Jedis/JedisPool
• key-regex: a string key pattern

set clj

(set conn-or-pool k v)

(set conn-or-pool k v {:keys [ttl] :as options})

Writes a value against a key to redis.

Params:

• conn-or-pool: An instance of Jedis/JedisPool
• k: a string key
• v: a string value

smembers clj

(smembers conn-or-pool key)

Returns all the members of the set value stored at key

Params:

• conn-or-pool: An instance of Jedis/JedisPool/JedisCluster
• k: a string key

srem clj

(srem conn-or-pool key & members)

Remove the specified members from the set stored at key

Params:

• conn-or-pool: An instance of Jedis/JedisPool/JedisCluster
• k: a string key
• v: a variadic string values

with-conn clj macro

(with-conn [var-sym redis-pool] & body)

Evaluates body in a try-catch expression with the provided name bound to a connection resource from the pool and finally returns the connection back to the pool.

with-multi clj macro

(with-multi [var-sym pool] & body)

Evaluates body inside a redis MULTI transaction. The provided name is bound to a resource from the pool, using which a transaction is created. The connection will be returned back to the pool at the end of the transaction.

Also, see discard-transaction.

Refer https://redis.io/topics/transactions for details on how transactions work.

zadd clj

(zadd conn-or-pool k v)

Writes a sorted set against a key to redis

Params:

• conn-or-pool: An instance of Jedis/JedisPool/JedisCluster
• k: a string key
• v: value as a clojure map of the following format {^String :member ^Double score}

zrange clj

(zrange conn-or-pool k start end)

Return a range of members in a sorted set, by index. Params:

• conn-or-pool: An instance of Jedis/JedisPool/JedisCluster
• k: a string key
• start: an integer index
• end: an integer index. They can also be negative numbers indicating offsets from the end of the sorted set

zrange-with-score clj

(zrange-with-score conn-or-pool k start end)

Return a range of members in a sorted set, by index along with their scores Each element in the collection returned in the format: [^Double score ^String member] Params:

• conn-or-pool: An instance of Jedis/JedisPool/JedisCluster
• k: a string key
• start: an integer index
• end: an integer index. They can also be negative numbers indicating offsets from the end of the sorted set