Mechanic
đŸ“Ŗ Shopify REST Deprecation
  • â›Šī¸Introduction
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  • đŸ’¯status.mechanic.dev
  • đŸ“ŖShopify is deprecating the REST API
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        • âš ī¸Shopify REST Admin API
          • đŸšĢArticle object
          • đŸšĢBlog object
          • đŸšĢCollection object
          • đŸšĢCustomer object
          • đŸšĢDiscount code object
          • đŸšĢDispute object
          • đŸšĢDraft order object
          • đŸšĢFulfillment object
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  • FAQ
    • The app isn't loading. What do I do?
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    • A Shopify event is missing. Where is it?
    • Does Mechanic have an affiliate program?
    • Can non-owners install Mechanic?
    • Can I replace Shopify's order emails with Mechanic?
    • Can I manually set Shopify permissions for Mechanic?
    • Does my theme need to be updated for Mechanic?
    • Do you have a plan for development stores?
    • Why don't I see any events in my task's activity?
    • Can I read data back from my webhook submission?
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    • Can I re-send order confirmation emails with Mechanic?
    • Why am I seeing a different price than on the app store?
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    • My task is failing because of a permissions problem. Why?
    • How do I preview email attachments?
    • Can I query external APIs?
    • Why can't I access the Shopify API during preview mode?
    • How do marketing preferences work with Mechanic?
    • Can I send data to Google Sheets?
    • What's possible with timeline comments?
    • I'm getting a "query param length is too long" error when using GraphQL.
    • Can my Mechanic concurrency limit be raised?
    • What IP address does Mechanic use?
    • Can Mechanic read or manage customer subscriptions?
    • Why is everything harder now?
    • Can task content be translated into multiple languages?
    • Can I add a time delay to my task?
    • Can I add another store to my existing Mechanic subscription?
    • How can I reduce memory usage of my task?
    • How do I connect PayPal to Shopify with Mechanic?
    • How do I add a Shopify access scope to my task?
    • Can I have my Mechanic data retained for more (or less) than 15 days?
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Important Updates

  • đŸ“Ŗ Shopify REST Deprecation
On this page
  • Options
  • Verbose options
  • Positional options
  • Expiration
  • Commands
  • set
  • setex
  • del
  • incr
  • incrby
  • decr
  • decrby
  • Examples
  • Set a value, auto-expiring in 60 days
  • Set a value, explicitly expiring in 1 minute
  • Clear a value

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  1. Core Concepts
  2. Actions

Cache

PreviousActionsNextEcho

Last updated 1 year ago

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The Cache action allows developers to interact with the store's Mechanic , using commands inspired by Redis. Cache entries have a key, a value containing up to 256 kilobytes, and a ttl value ("Time To Live") in seconds, defaulting to the maximum of 60 days (i.e. 5184000 seconds).

Cache actions (like all actions) are performed after their task run is completed. The results of Cache actions therefore aren't reflected during the task run that generates them.

Options

This action supports two styles of options: a more verbose nested structure, and a simpler set of positional arguments.

All commands must define a cache key, matching the regular expression /^[a-z0-9_:\-\.\/]+$/i.

Verbose options

In this option style, the cache command is given as the root key of the options object. The root value is itself an option, containing the arguments needed for the selected cache command.

{% action "cache" %}
  {
    "incr": {
      "key": "foo",
      "ttl": 600
    }
  }
{% endaction %}
{
  "action": {
    "type": "cache",
    "options": {
      "incr": {
        "key": "foo",
        "ttl": 600
      }
    }
  }
}

Positional options

In this option style, the cache command and its arguments are given in a list. Use the cache command reference below to find the argument order required for each command.

{% action "cache", "incr", "foo" %}
{
  "action": {
    "type": "cache",
    "options": [
      "incr",
      "foo"
    ]
  }
}

Expiration

Each cache entry is given a default TTL value of 60 days, or 5184000 seconds. (A cache entry's TTL may not exceed 60 days.)

A cache command will always reset the entry's TTL value upon execution, regardless of the TTL's original value.

Commands

set

Stores a value. Requires key and value. The stored value may be any JSON object.

setex

Using a defined TTL (an expiration interval) given in seconds, stores a value. Requires key, ttl, and value. The stored value may be any JSON object.

The "setex" command has the same net functionality as "set", but it does have one difference: because "setex" requires an explicit ttl value, it's possible to use "setex" to express an expiring value using a single line of Liquid. The same result could be achieved with "set", but it would require using verbose options.

{% action "cache", "setex", "foo", 5, "bar" %}

del

Deletes a stored key. Requires key.

incr

Increments a numeric key by 1. Requires key. If the key is not already set, the value before incrementing will be assumed to be 0.

incrby

Increments a numeric key by the value of your choice. Requires key, and an integer increment. If the key is not already set, the value before incrementing will be assumed to be 0.

decr

Decrements a numeric key by 1. Requires key. If the key is not already set, the value before incrementing will be assumed to be 0.

decrby

Decrements a numeric key by the value of your choice. Requires key, and an integer decrement. If the key is not already set, the value before incrementing will be assumed to be 0.

Examples

Set a value, auto-expiring in 60 days

{% action "cache" %}
  {
    "set": {
      "key": "foo",
      "value": 5
    }
  }
{% endaction %}
{% action "cache", "set", "foo", 5 %}

Set a value, explicitly expiring in 1 minute

{% action "cache" %}
  {
    "setex": {
      "key": "foo",
      "ttl": 60,
      "value": 5
    }
  }
{% endaction %}
{% action "cache", "setex", 60, "foo" %}

Clear a value

{% action "cache" %}
  {
    "del": {
      "key": "foo"
    }
  }
{% endaction %}
{% action "cache", "del", "foo" %}

The required arguments for each command are given below, in the order in which they are supported for .

When a command is given using , the ttl value (in seconds) is always supported.

cache
positional options
verbose options