Redis

Cache keys, lists, sets, sorted sets and Bloom filters, and rate limit calls.

Guides

Blocks

Add these blocks on the canvas by searching for their name. Each block page lists its pins and how it behaves.

• rate limit function_rate_limit Counts calls per registered key and reports whether this one is still within the limit. Replaces the incr-key + ttl + condition chain every API blueprint used to build by hand: pick a key that identifies the caller (for example one with a {ip:value} placeholder), a limit, and a window. Rejected calls count towards the limit as well.
• decrement function_redis_cache_decr_key Decrements the number stored at key by one. If the key does not exist, it is set to 0 before performing the operation.
• delete function_redis_cache_delete_key Removes the specified key and their values.
• get cache key function_redis_cache_get_exists gets the key and returns true or false based of its existence, makes it easier for cache-management in flows
• get cache json key function_redis_cache_get_exists_json gets the key and returns true or false based of its existence, makes it easier for cache-management in flows
• get cache ttl function_redis_cache_get_ttl get the time to live in seconds
• increment function_redis_cache_incr_key Increments the number stored at key by one. If the key does not exist, it is set to 0 before performing the operation.
• exists function_redis_cache_key_exists Checks if the key already exists
• set function_redis_cache_set_key Set key to hold the string value. If key already holds a value, it is overwritten, regardless of its type.
• set json function_redis_cache_set_key_json Set key to hold the string value. If key already holds a value, it is overwritten, regardless of its type.
• set cache ttl function_redis_cache_ttl set the time to live in seconds
• bf add redis_bloom_add Add an item to a Bloom filter. Creates the filter if it does not exist.
• bf exists redis_bloom_exists Check if an item may exist in a Bloom filter. Returns true if the item may exist (with the configured false-positive rate), false if it definitely does not exist.
• bf madd redis_bloom_madd Add multiple items to a Bloom filter at once. Creates the filter if it does not exist.
• bf mexists redis_bloom_mexists Check if multiple items may exist in a Bloom filter. Returns an array of booleans.
• bf reserve redis_bloom_reserve Create a new Bloom filter with a given error rate and initial capacity. The filter will auto-scale if capacity is exceeded.
• get by index redis_list_index Get an element from a list by its index
• insert at index redis_list_insert Insert an element before or after another element in a list
• len redis_list_len get the length of a list
• pop redis_list_pop Remove and get the first element in a list
• push redis_list_push prepend one element to a list
• push array redis_list_push_array prepend multiple elements to a list
• pushx redis_list_pushx prepend an element to a list, only if the list exists
• range redis_list_range get a range of elements from a list. Use start 0 and stop -1 to retrieve all items.
• remove redis_list_remove removes the first count occurrences of elements equal to element
• rpop redis_list_rpop remove and get the last element in a list
• rpush redis_list_rpush append one or multiple elements to a list
• rpushx redis_list_rpushx append an element to a list, only if the list exists
• set redis_list_set set the value of an element in a list by its index
• trim redis_list_trim trim a list to the specified range
• add redis_set_add add one member to a set
• card redis_set_card get the number of members in a set
• is member redis_set_ismember determine if a given value is a member of a set
• members redis_set_members Get all the members in a set
• pop redis_set_pop Remove and return one random member from a set
• push array redis_set_push_array prepend multiple elements to a sadd
• randmember redis_set_randmember Get one random member from a set
• rem redis_set_rem Remove one member from a set
• zadd redis_set_zadd add one member to a sorted set
• zrange redis_set_zrange retrieve items from the sorted sets
• zrem redis_zrem remove one member from a sorted set
• get cache value_redis_cache_get_key get redis cache

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