6e856d3156
- Added an examples page with examples of all different concepts in Medusa. We'll probably add more examples with time as we see the need for them. - Small fixes in different pages. Preview: https://resources-docs-ocb5uyp0o-medusajs.vercel.app/v2/resources/examples
71 lines
1.7 KiB
Plaintext
71 lines
1.7 KiB
Plaintext
export const metadata = {
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title: `${pageNumber} Module's Container`,
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}
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# {metadata.title}
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In this chapter, you'll learn about the module's container and how to resolve resources in that container.
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## Module's Container
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Since modules are isolated, each module has a local container only used by the resources of that module.
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So, resources in the module, such as services or loaders, can only resolve other resources registered in the module's container.
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### List of Registered Resources
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Find a list of resources or dependencies registered in a module's container in [this Learning Resources reference](!resoures!/medusa-container-resources).
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---
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## Resolve Resources
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### Services
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A service's constructor accepts as a first parameter an object used to resolve resources registered in the module's container.
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For example:
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```ts highlights={[["4"], ["10"]]}
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import { Logger } from "@medusajs/framework/types"
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type InjectedDependencies = {
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logger: Logger
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}
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export default class HelloModuleService {
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protected logger_: Logger
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constructor({ logger }: InjectedDependencies) {
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this.logger_ = logger
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this.logger_.info("[HelloModuleService]: Hello World!")
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}
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// ...
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}
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```
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### Loader
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A loader function accepts as a parameter an object having the property `container`. Its value is the module's container used to resolve resources.
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For example:
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```ts highlights={[["9"]]}
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import {
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LoaderOptions,
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} from "@medusajs/framework/types"
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import {
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ContainerRegistrationKeys
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} from "@medusajs/framework/utils"
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export default async function helloWorldLoader({
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container,
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}: LoaderOptions) {
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const logger = container.resolve(ContainerRegistrationKeys.LOGGER)
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logger.info("[helloWorldLoader]: Hello, World!")
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}
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```
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