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65 lines
1.8 KiB
65 lines
1.8 KiB
import {ErrorWithContext} from '../../util'
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import {ResolvedRouteHandler, Route} from './Route'
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import {Injectable} from '../../di'
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/**
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* Class representing a resolved route that a request is mounted to.
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*/
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@Injectable()
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export class ActivatedRoute {
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/**
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* The parsed params from the route definition.
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*
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* @example
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* If the route definition is like `/something/something/:paramName1/:paramName2/etc`
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* and the request came in on `/something/something/foo/bar/etc`, then the params
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* would be:
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*
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* ```typescript
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* {
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* paramName1: 'foo',
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* paramName2: 'bar',
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* }
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* ```
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*/
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public readonly params: {[key: string]: string}
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/**
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* The resolved function that should handle the request for this route.
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*/
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public readonly handler: ResolvedRouteHandler
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/**
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* Pre-middleware that should be applied to the request on this route.
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*/
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public readonly preflight: ResolvedRouteHandler[]
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/**
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* Post-middleware that should be applied to the request on this route.
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*/
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public readonly postflight: ResolvedRouteHandler[]
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constructor(
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/** The route this ActivatedRoute refers to. */
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public readonly route: Route,
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/** The request path that activated that route. */
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public readonly path: string,
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) {
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const params = route.extract(path)
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if ( !params ) {
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const error = new ErrorWithContext('Cannot get params for route. Path does not match.')
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error.context = {
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matchedRoute: String(route),
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requestPath: path,
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}
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throw error
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}
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this.params = params
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this.preflight = route.resolvePreflight()
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this.handler = route.resolveHandler()
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this.postflight = route.resolvePostflight()
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}
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}
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