66 lines
2.3 KiB
Plaintext
66 lines
2.3 KiB
Plaintext
---
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description: 'In this document, you’ll learn about Cache Modules in Medusa, how they work, and which modules Medusa provides.'
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---
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import DocCardList from '@theme/DocCardList';
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import DocCard from '@theme/DocCard';
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import Icons from '@theme/Icon';
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# Cache
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In this document, you’ll learn about Cache Modules in Medusa, how they work, and which modules Medusa provides.
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## Overview
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Cache is used in Medusa to store the results of computations such as price selection or various tax calculations. The caching layer in Medusa is implemented as a [module](../modules/overview.mdx). This allows you to replace the underlying database/cache store in your project.
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Modules are packages that export a service. The main service exported from a cache module has to implement the `ICacheService` interface exported from the `@medusajs/types` package.
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During the app startup, the modules loader will load the service into the [dependency injection container](../fundamentals/dependency-injection.md) to be available as `cacheService` to the rest of the commerce application.
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---
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## Available Modules
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Medusa default starter project comes with the in-memory cache module (`@medusajs/cache-inmemory`). In-memory cache uses a plain JS Map object to store data, which is great for testing and development purposes.
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For production environments, there is the Redis cache module package (`@medusajs/cache-redis`) that you can install.
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<DocCardList colSize={6} items={[
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{
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type: 'link',
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href: '/development/cache/modules/redis',
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label: 'Redis Module',
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customProps: {
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icon: Icons['academic-cap-solid'],
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description: 'Learn how to install and use the Redis Module'
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}
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},
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{
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type: 'link',
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href: '/development/cache/modules/in-memory',
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label: 'In-Memory Module',
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customProps: {
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icon: Icons['academic-cap-solid'],
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description: 'Learn how to install and use the In-Memory Module'
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}
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},
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]} />
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---
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## Custom Development
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Developers can create custom cache modules to implement their custom cache logic. The module can be installed and used in any Medusa backend.
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<DocCard item={{
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type: 'link',
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href: '/development/cache/create',
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label: 'Create a Cache Module',
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customProps: {
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icon: Icons['academic-cap-solid'],
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description: 'Learn how to create a cache module in Medusa.'
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}
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}}
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/>
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