bitop

Performs a bitwise operation between multiple keys (containing string values) and stores the result in the destination key.

[Redis documentation]


bitop(key, operation, keys, [options], [callback])

Arguments Type Description
key string Destination key identifier
operation string Bitwise operation to perform.
Allowed values: AND, OR, XOR, NOT
keys array list of source keys on which the bitwise operation will be applied
options JSON Object Optional parameters
callback function Callback

Options

Option Type Description Default
queuable boolean Make this request queuable or not true

Return Value

Returns the MemoryStorage object to allow chaining.


Callback Response

Returns an integer containing the length of the new key's value.

Usage

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// Using callbacks (NodeJS or Web Browser)
kuzzle.memoryStorage.bitop('key', 'AND', ['srckey1', 'srckey2', '...'], function (err, length) {
  // callback called once the action has completed
});

// Using promises (NodeJS only)
kuzzle.memoryStorage.bitopPromise('key', 'AND', ['srckey1', 'srckey2', '...'])
  .then(length => {
    // resolved once the action has completed
  });

Callback response:

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