120 lines
5.6 KiB
Plaintext
120 lines
5.6 KiB
Plaintext
---
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displayed_sidebar: servicesSidebar
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---
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import ParameterTypes from "@site/src/components/ParameterTypes"
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# MiddlewareService
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Orchestrates dynamic middleware registered through the Medusa Middleware API
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## constructor
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___
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## Properties
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<ParameterTypes parameters={[{"name":"postAuthentication_","type":"`middlewareType`[]","description":"","optional":false,"defaultValue":"","expandable":false,"children":[]},{"name":"preAuthentication_","type":"`middlewareType`[]","description":"","optional":false,"defaultValue":"","expandable":false,"children":[]},{"name":"preCartCreation_","type":"RequestHandler<ParamsDictionary, any, any, ParsedQs, Record<string, any>>[]","description":"","optional":false,"defaultValue":"","expandable":false,"children":[]},{"name":"routers","type":"`Record<string, Router[]>`","description":"","optional":false,"defaultValue":"","expandable":false,"children":[]}]} />
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___
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## Methods
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### addPostAuthentication
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Adds a middleware function to be called after authentication is completed.
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#### Parameters
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<ParameterTypes parameters={[{"name":"middleware","type":"`middlewareHandlerType`","description":"the middleware function. Should return a\n middleware function.","optional":false,"defaultValue":"","expandable":false,"children":[]},{"name":"options","type":"`Record<string, unknown>`","description":"the arguments that will be passed to the\n middleware","optional":false,"defaultValue":"","expandable":false,"children":[]}]} />
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#### Returns
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<ParameterTypes parameters={[{"name":"void","type":"`void`","optional":false,"defaultValue":"","description":"void","expandable":false,"children":[]}]} />
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### addPreAuthentication
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Adds a middleware function to be called before authentication is completed.
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#### Parameters
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<ParameterTypes parameters={[{"name":"middleware","type":"`middlewareHandlerType`","description":"the middleware function. Should return a\n middleware function.","optional":false,"defaultValue":"","expandable":false,"children":[]},{"name":"options","type":"`Record<string, unknown>`","description":"the arguments that will be passed to the\n middleware","optional":false,"defaultValue":"","expandable":false,"children":[]}]} />
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#### Returns
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<ParameterTypes parameters={[{"name":"void","type":"`void`","optional":false,"defaultValue":"","description":"void","expandable":false,"children":[]}]} />
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### addPreCartCreation
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Adds a middleware function to be called before cart creation
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#### Parameters
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<ParameterTypes parameters={[{"name":"middleware","type":"RequestHandler<ParamsDictionary, any, any, ParsedQs, Record<string, any>>","description":"the middleware function. Should return a\n middleware function.","optional":false,"defaultValue":"","expandable":false,"children":[]}]} />
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#### Returns
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<ParameterTypes parameters={[{"name":"void","type":"`void`","optional":false,"defaultValue":"","description":"Adds a middleware function to be called before cart creation","expandable":false,"children":[]}]} />
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### addRouter
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#### Parameters
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<ParameterTypes parameters={[{"name":"path","type":"`string`","description":"","optional":false,"defaultValue":"","expandable":false,"children":[]},{"name":"router","type":"`Router`","description":"","optional":false,"defaultValue":"","expandable":false,"children":[]}]} />
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#### Returns
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<ParameterTypes parameters={[{"name":"void","type":"`void`","optional":false,"defaultValue":"","description":"","expandable":false,"children":[]}]} />
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### getRouters
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#### Parameters
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<ParameterTypes parameters={[{"name":"path","type":"`string`","description":"","optional":false,"defaultValue":"","expandable":false,"children":[]}]} />
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#### Returns
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<ParameterTypes parameters={[{"name":"Router[]","type":"`Router`[]","optional":false,"defaultValue":"","description":"","expandable":false,"children":[]}]} />
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### usePostAuthentication
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Adds post authentication middleware to an express app.
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#### Parameters
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<ParameterTypes parameters={[{"name":"app","type":"`Router`","description":"the express app to add the middleware to","optional":false,"defaultValue":"","expandable":false,"children":[]}]} />
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#### Returns
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<ParameterTypes parameters={[{"name":"void","type":"`void`","optional":false,"defaultValue":"","description":"Adds post authentication middleware to an express app.","expandable":false,"children":[]}]} />
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### usePreAuthentication
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Adds pre authentication middleware to an express app.
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#### Parameters
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<ParameterTypes parameters={[{"name":"app","type":"`Router`","description":"the express app to add the middleware to","optional":false,"defaultValue":"","expandable":false,"children":[]}]} />
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#### Returns
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<ParameterTypes parameters={[{"name":"void","type":"`void`","optional":false,"defaultValue":"","description":"Adds pre authentication middleware to an express app.","expandable":false,"children":[]}]} />
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### usePreCartCreation
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#### Returns
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<ParameterTypes parameters={[{"name":"RequestHandler<ParamsDictionary, any, any, ParsedQs, Record<string, any>>[]","type":"RequestHandler<ParamsDictionary, any, any, ParsedQs, Record<string, any>>[]","optional":false,"defaultValue":"","description":"","expandable":false,"children":[]}]} />
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### validateMiddleware\_
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Validates a middleware function, throws if fn is not of type function.
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#### Parameters
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<ParameterTypes parameters={[{"name":"fn","type":"`unknown`","description":"the middleware function to validate.","optional":false,"defaultValue":"","expandable":false,"children":[]}]} />
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#### Returns
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<ParameterTypes parameters={[{"name":"void","type":"`void`","optional":false,"defaultValue":"","description":"nothing if the middleware is a function","expandable":false,"children":[]}]} />
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