client/src/app/+about/about-instance/about-instance.resolver.ts

   1 import { forkJoin } from 'rxjs'
   2 import { map, switchMap } from 'rxjs/operators'
   3 import { Injectable } from '@angular/core'
   4 import { Resolve } from '@angular/router'
   5 import { InstanceService } from '@app/shared/shared-instance'
   6 import { About } from '@shared/models/server'
   7
   8 export type ResolverData = { about: About, languages: string[], categories: string[] }
   9
  10 @Injectable()
  11 export class AboutInstanceResolver implements Resolve<any> {
  12
  13   constructor (
  14     private instanceService: InstanceService
  15   ) {}
  16
  17   resolve () {
  18     return this.instanceService.getAbout()
  19                .pipe(
  20                  switchMap(about => {
  21                    return forkJoin([
  22                      this.instanceService.buildTranslatedLanguages(about),
  23                      this.instanceService.buildTranslatedCategories(about)
  24                    ]).pipe(map(([ languages, categories ]) => ({ about, languages, categories }) as ResolverData))
  25                  })
  26                )
  27   }
  28 }