Retrieve data from the cache

Get Cache Value

Catalyst Cloud Scale Cache is divided into partitions or cache units called segments. Each segment stores cache items in the form of key-value pairs. Both keys and values are of type String.

You can retrieve the value of a cache item from a segment in the cache using the get_value() method. You must pass the key name as the argument and the value corresponding to that key will be returned as a response.

To know more about the component instance cache_service and the segment_service segment_service used below, please refer to their respective help sections.

Parameters Used

    

        
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         #Get cache value
cache_service = app.cache()
segment_service = cache_service.segment()
data = segment_service.get_value('key')

    

A sample response is shown below :

    

        
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         {
    "cache_name": "Name",
    "cache_value": "Amelia Burrows",
    "expires_in": "Mar 09, 2023 06:20 PM",
    "expiry_in_hours": "48",
    "project_details": {
        "id": "2648000001343001",
        "project_name": "appEngine",
        "project_type": "Live",
    },
    "segment_details": {"id": "2648000001343037", "segment_name": "Default"},
    "ttl_in_milliseconds": "172800000",
}

    

Get Cache Object

You can retrieve the details of the cache where the key-value pair is of type dictionary. The key object is retrieved using the get() method, where the key name is passed as an argument.

To know more about the component instance cache_service and the segment instance segment_service used below, please refer to their respective help sections.

Parameters Used

    

        
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cache_service = app.cache()
segment_service = cache_service.segment()
data = segment_service.get('key')

    

A sample response is shown below :

    

        
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         {
    cache_name: "Name",
    cache_value: "Amelia Burrows",
    project_details: {
        project_name: "AlienCity",
        id: "2136000000007733"
    },
    segment_details: {
        segment_name: "Location",
        id: "2136000000008572"
    },
    expires_in: "Aug 18, 2021 06:39 PM",
    expiry_in_hours: "47",
    ttl_in_milliseconds: "172727000"
}