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Merge pull request #179 from awanlin/feat/migrate-to-new-backend-system
Migrate to new Backend System
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,126 +1,25 @@ | ||
| /* | ||
| * Hi! | ||
| * | ||
| * Note that this is an EXAMPLE Backstage backend. Please check the README. | ||
| * | ||
| * Happy hacking! | ||
| */ | ||
|
|
||
| import { | ||
| CacheManager, | ||
| DatabaseManager, | ||
| HostDiscovery, | ||
| ServerTokenManager, | ||
| UrlReaders, | ||
| createServiceBuilder, | ||
| getRootLogger, | ||
| loadBackendConfig, | ||
| notFoundHandler, | ||
| } from '@backstage/backend-common'; | ||
|
|
||
| import { Config } from '@backstage/config'; | ||
| import { PluginEnvironment } from './types'; | ||
| import Router from 'express-promise-router'; | ||
| import { ServerPermissionClient } from '@backstage/plugin-permission-node'; | ||
| import { TaskScheduler } from '@backstage/backend-tasks'; | ||
| import app from './plugins/app'; | ||
| import auth from './plugins/auth'; | ||
| import badges from './plugins/badges'; | ||
| import catalog from './plugins/catalog'; | ||
| import explore from './plugins/explore'; | ||
| import proxy from './plugins/proxy'; | ||
| import search from './plugins/search'; | ||
| import techdocs from './plugins/techdocs'; | ||
| import todo from './plugins/todo'; | ||
| import { DefaultIdentityClient } from '@backstage/plugin-auth-node'; | ||
| import { CatalogClient } from '@backstage/catalog-client'; | ||
| import graphql from './plugins/graphql'; | ||
|
|
||
| function makeCreateEnv(config: Config) { | ||
| const root = getRootLogger(); | ||
| const reader = UrlReaders.default({ logger: root, config }); | ||
| root.info(`Created UrlReader ${reader}`); | ||
| const discovery = HostDiscovery.fromConfig(config); | ||
| const tokenManager = ServerTokenManager.noop(); | ||
| const databaseManager = DatabaseManager.fromConfig(config); | ||
| const permissions = ServerPermissionClient.fromConfig(config, { | ||
| discovery, | ||
| tokenManager, | ||
| }); | ||
| const catalogClient = new CatalogClient({ | ||
| discoveryApi: discovery, | ||
| }); | ||
| const cacheManager = CacheManager.fromConfig(config); | ||
| const taskScheduler = TaskScheduler.fromConfig(config, { databaseManager }); | ||
| const identity = DefaultIdentityClient.create({ | ||
| discovery, | ||
| }); | ||
|
|
||
| return (plugin: string): PluginEnvironment => { | ||
| const logger = root.child({ type: 'plugin', plugin }); | ||
| const database = databaseManager.forPlugin(plugin); | ||
| const cache = cacheManager.forPlugin(plugin); | ||
| const scheduler = taskScheduler.forPlugin(plugin); | ||
|
|
||
| return { | ||
| logger, | ||
| cache, | ||
| database, | ||
| config, | ||
| reader, | ||
| discovery, | ||
| tokenManager, | ||
| permissions, | ||
| scheduler, | ||
| identity, | ||
| catalogClient, | ||
| }; | ||
| }; | ||
| } | ||
|
|
||
| async function main() { | ||
| const config = await loadBackendConfig({ | ||
| argv: process.argv, | ||
| logger: getRootLogger(), | ||
| }); | ||
| const createEnv = makeCreateEnv(config); | ||
|
|
||
| const catalogEnv = createEnv('catalog'); | ||
| const authEnv = createEnv('auth'); | ||
| const proxyEnv = createEnv('proxy'); | ||
| const searchEnv = createEnv('search'); | ||
| const techdocsEnv = createEnv('techdocs'); | ||
| const todoEnv = createEnv('todo'); | ||
| const appEnv = createEnv('app'); | ||
| const badgesEnv = createEnv('badges'); | ||
| const exploreEnv = createEnv('explore'); | ||
| const graphqlEnv = createEnv('graphql'); | ||
|
|
||
| const apiRouter = Router(); | ||
| apiRouter.use('/catalog', await catalog(catalogEnv)); | ||
| apiRouter.use('/auth', await auth(authEnv)); | ||
| apiRouter.use('/search', await search(searchEnv)); | ||
| apiRouter.use('/techdocs', await techdocs(techdocsEnv)); | ||
| apiRouter.use('/todo', await todo(todoEnv)); | ||
| apiRouter.use('/proxy', await proxy(proxyEnv)); | ||
| apiRouter.use('/badges', await badges(badgesEnv)); | ||
| apiRouter.use('/explore', await explore(exploreEnv)); | ||
| apiRouter.use('/graphql', await graphql(graphqlEnv)); | ||
| apiRouter.use(notFoundHandler()); | ||
|
|
||
| const service = createServiceBuilder(module) | ||
| .loadConfig(config) | ||
| .addRouter('/api', apiRouter) | ||
| .addRouter('', await app(appEnv)); | ||
|
|
||
| await service.start().catch(err => { | ||
| console.log(err); | ||
| process.exit(1); | ||
| }); | ||
| } | ||
|
|
||
| module.hot?.accept(); | ||
| main().catch(error => { | ||
| console.error('Backend failed to start up', error); | ||
| process.exit(1); | ||
| }); | ||
| import { legacyPlugin } from '@backstage/backend-common'; | ||
| import { createBackend } from '@backstage/backend-defaults'; | ||
| import { graphqlPlugin } from '@frontside/backstage-plugin-graphql-backend'; | ||
| import { graphqlModuleCatalog } from '@frontside/backstage-plugin-graphql-backend-module-catalog'; | ||
|
|
||
| const backend = createBackend(); | ||
|
|
||
| backend.add(import('@backstage/plugin-app-backend/alpha')); | ||
| backend.add(import('@backstage/plugin-auth-backend')); | ||
| backend.add(import('@backstage/plugin-badges-backend')); | ||
| backend.add(import('@backstage/plugin-catalog-backend/alpha')); | ||
| // TODO:(awanlin) replace when this is completed: https://github.com/backstage/backstage/pull/20551 | ||
| backend.add(legacyPlugin('explore', import('./plugins/explore'))); | ||
| // TODO:(awanlin) update with import when available | ||
| backend.add(graphqlPlugin); | ||
| backend.add(graphqlModuleCatalog()); | ||
| backend.add(import('@backstage/plugin-proxy-backend/alpha')); | ||
| backend.add(import('@backstage/plugin-search-backend/alpha')); | ||
| backend.add(import('@backstage/plugin-search-backend-module-catalog/alpha')); | ||
| backend.add(import('@backstage/plugin-search-backend-module-explore/alpha')); | ||
| backend.add(import('@backstage/plugin-search-backend-module-techdocs/alpha')); | ||
| backend.add(import('@backstage/plugin-techdocs-backend/alpha')); | ||
| backend.add(import('@backstage/plugin-todo-backend')); | ||
|
|
||
| backend.start(); |
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