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apollo-angular

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Use your GraphQL data in your Angular app, with the Apollo Client

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import { from } from 'rxjs'; import { Inject, Injectable, Optional } from '@angular/core'; import { ApolloClient } from '@apollo/client/core'; import { QueryRef } from './query-ref'; import { APOLLO_FLAGS, APOLLO_NAMED_OPTIONS, APOLLO_OPTIONS } from './tokens'; import { fixObservable, fromPromise, useMutationLoading, wrapWithZone } from './utils'; import * as i0 from "@angular/core"; export class ApolloBase { ngZone; flags; _client; useInitialLoading; useMutationLoading; constructor(ngZone, flags, _client) { this.ngZone = ngZone; this.flags = flags; this._client = _client; this.useInitialLoading = flags?.useInitialLoading ?? false; this.useMutationLoading = flags?.useMutationLoading ?? false; } watchQuery(options) { return new QueryRef(this.ensureClient().watchQuery({ ...options, }), this.ngZone, { useInitialLoading: this.useInitialLoading, ...options, }); } query(options) { return fromPromise(() => this.ensureClient().query({ ...options })); } mutate(options) { return useMutationLoading(fromPromise(() => this.ensureClient().mutate({ ...options })), options.useMutationLoading ?? this.useMutationLoading); } watchFragment(options, extra) { const obs = from(fixObservable(this.ensureClient().watchFragment({ ...options }))); return extra && extra.useZone !== true ? obs : wrapWithZone(obs, this.ngZone); } subscribe(options, extra) { const obs = from(fixObservable(this.ensureClient().subscribe({ ...options }))); return extra && extra.useZone !== true ? obs : wrapWithZone(obs, this.ngZone); } /** * Get an instance of ApolloClient */ get client() { return this.ensureClient(); } /** * Set a new instance of ApolloClient * Remember to clean up the store before setting a new client. * * @param client ApolloClient instance */ set client(client) { if (this._client) { throw new Error('Client has been already defined'); } this._client = client; } ensureClient() { this.checkInstance(); return this._client; } checkInstance() { if (this._client) { return true; } else { throw new Error('Client has not been defined yet'); } } } export class Apollo extends ApolloBase { map = new Map(); constructor(ngZone, apolloOptions, apolloNamedOptions, flags) { super(ngZone, flags); if (apolloOptions) { this.createDefault(apolloOptions); } if (apolloNamedOptions && typeof apolloNamedOptions === 'object') { for (let name in apolloNamedOptions) { if (apolloNamedOptions.hasOwnProperty(name)) { const options = apolloNamedOptions[name]; this.create(options, name); } } } } /** * Create an instance of ApolloClient * @param options Options required to create ApolloClient * @param name client's name */ create(options, name) { if (isNamed(name)) { this.createNamed(name, options); } else { this.createDefault(options); } } /** * Use a default ApolloClient */ default() { return this; } /** * Use a named ApolloClient * @param name client's name */ use(name) { if (isNamed(name)) { return this.map.get(name); } else { return this.default(); } } /** * Create a default ApolloClient, same as `apollo.create(options)` * @param options ApolloClient's options */ createDefault(options) { if (this._client) { throw new Error('Apollo has been already created.'); } this.client = this.ngZone.runOutsideAngular(() => new ApolloClient(options)); } /** * Create a named ApolloClient, same as `apollo.create(options, name)` * @param name client's name * @param options ApolloClient's options */ createNamed(name, options) { if (this.map.has(name)) { throw new Error(`Client ${name} has been already created`); } this.map.set(name, new ApolloBase(this.ngZone, this.flags, this.ngZone.runOutsideAngular(() => new ApolloClient(options)))); } /** * Remember to clean up the store before removing a client * @param name client's name */ removeClient(name) { if (isNamed(name)) { this.map.delete(name); } else { this._client = undefined; } } static ɵfac = i0.ɵɵngDeclareFactory({ minVersion: "12.0.0", version: "18.0.5", ngImport: i0, type: Apollo, deps: [{ token: i0.NgZone }, { token: APOLLO_OPTIONS, optional: true }, { token: APOLLO_NAMED_OPTIONS, optional: true }, { token: APOLLO_FLAGS, optional: true }], target: i0.ɵɵFactoryTarget.Injectable }); static ɵprov = i0.ɵɵngDeclareInjectable({ minVersion: "12.0.0", version: "18.0.5", ngImport: i0, type: Apollo }); } i0.ɵɵngDeclareClassMetadata({ minVersion: "12.0.0", version: "18.0.5", ngImport: i0, type: Apollo, decorators: [{ type: Injectable }], ctorParameters: () => [{ type: i0.NgZone }, { type: undefined, decorators: [{ type: Optional }, { type: Inject, args: [APOLLO_OPTIONS] }] }, { type: undefined, decorators: [{ type: Inject, args: [APOLLO_NAMED_OPTIONS] }, { type: Optional }] }, { type: undefined, decorators: [{ type: Inject, args: [APOLLO_FLAGS] }, { type: Optional }] }] }); function isNamed(name) { return !!name && name !== 'default'; } //# 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{ from, Observable } from 'rxjs';\nimport { Inject, Injectable, NgZone, Optional } from '@angular/core';\nimport type {\n  ApolloClientOptions,\n  ApolloQueryResult,\n  FetchResult,\n  ObservableQuery,\n  OperationVariables,\n  QueryOptions,\n  SubscriptionOptions,\n  WatchFragmentResult,\n} from '@apollo/client/core';\nimport { ApolloClient } from '@apollo/client/core';\nimport { QueryRef } from './query-ref';\nimport { APOLLO_FLAGS, APOLLO_NAMED_OPTIONS, APOLLO_OPTIONS } from './tokens';\nimport type {\n  EmptyObject,\n  ExtraSubscriptionOptions,\n  Flags,\n  MutationOptions,\n  MutationResult,\n  NamedOptions,\n  WatchFragmentOptions,\n  WatchQueryOptions,\n} from './types';\nimport { fixObservable, fromPromise, useMutationLoading, wrapWithZone } from './utils';\n\nexport class ApolloBase<TCacheShape = any> {\n  private useInitialLoading: boolean;\n  private useMutationLoading: boolean;\n\n  constructor(\n    protected readonly ngZone: NgZone,\n    protected readonly flags?: Flags,\n    protected _client?: ApolloClient<TCacheShape>,\n  ) {\n    this.useInitialLoading = flags?.useInitialLoading ?? false;\n    this.useMutationLoading = flags?.useMutationLoading ?? false;\n  }\n\n  public watchQuery<TData, TVariables extends OperationVariables = EmptyObject>(\n    options: WatchQueryOptions<TVariables, TData>,\n  ): QueryRef<TData, TVariables> {\n    return new QueryRef<TData, TVariables>(\n      this.ensureClient().watchQuery<TData, TVariables>({\n        ...options,\n      }) as ObservableQuery<TData, TVariables>,\n      this.ngZone,\n      {\n        useInitialLoading: this.useInitialLoading,\n        ...options,\n      },\n    );\n  }\n\n  public query<T, V extends OperationVariables = EmptyObject>(\n    options: QueryOptions<V, T>,\n  ): Observable<ApolloQueryResult<T>> {\n    return fromPromise<ApolloQueryResult<T>>(() => this.ensureClient().query<T, V>({ ...options }));\n  }\n\n  public mutate<T, V extends OperationVariables = EmptyObject>(\n    options: MutationOptions<T, V>,\n  ): Observable<MutationResult<T>> {\n    return useMutationLoading(\n      fromPromise(() => this.ensureClient().mutate<T, V>({ ...options })),\n      options.useMutationLoading ?? this.useMutationLoading,\n    );\n  }\n\n  public watchFragment<\n    TFragmentData = unknown,\n    TVariables extends OperationVariables = EmptyObject,\n  >(\n    options: WatchFragmentOptions<TFragmentData, TVariables>,\n    extra?: ExtraSubscriptionOptions,\n  ): Observable<WatchFragmentResult<TFragmentData>> {\n    const obs = from(\n      fixObservable(this.ensureClient().watchFragment<TFragmentData, TVariables>({ ...options })),\n    );\n\n    return extra && extra.useZone !== true ? obs : wrapWithZone(obs, this.ngZone);\n  }\n\n  public subscribe<T, V extends OperationVariables = EmptyObject>(\n    options: SubscriptionOptions<V, T>,\n    extra?: ExtraSubscriptionOptions,\n  ): Observable<FetchResult<T>> {\n    const obs = from(fixObservable(this.ensureClient().subscribe<T, V>({ ...options })));\n\n    return extra && extra.useZone !== true ? obs : wrapWithZone(obs, this.ngZone);\n  }\n\n  /**\n   * Get an instance of ApolloClient\n   */\n  public get client(): ApolloClient<TCacheShape> {\n    return this.ensureClient();\n  }\n\n  /**\n   * Set a new instance of ApolloClient\n   * Remember to clean up the store before setting a new client.\n   *\n   * @param client ApolloClient instance\n   */\n  public set client(client: ApolloClient<TCacheShape>) {\n    if (this._client) {\n      throw new Error('Client has been already defined');\n    }\n\n    this._client = client;\n  }\n\n  private ensureClient(): ApolloClient<TCacheShape> {\n    this.checkInstance();\n\n    return this._client!;\n  }\n\n  private checkInstance(): this is { _client: ApolloClient<TCacheShape> } {\n    if (this._client) {\n      return true;\n    } else {\n      throw new Error('Client has not been defined yet');\n    }\n  }\n}\n\n@Injectable()\nexport class Apollo extends ApolloBase<any> {\n  private map: Map<string, ApolloBase<any>> = new Map<string, ApolloBase<any>>();\n\n  constructor(\n    ngZone: NgZone,\n    @Optional()\n    @Inject(APOLLO_OPTIONS)\n    apolloOptions?: ApolloClientOptions<any>,\n    @Inject(APOLLO_NAMED_OPTIONS) @Optional() apolloNamedOptions?: NamedOptions,\n    @Inject(APOLLO_FLAGS) @Optional() flags?: Flags,\n  ) {\n    super(ngZone, flags);\n\n    if (apolloOptions) {\n      this.createDefault(apolloOptions);\n    }\n\n    if (apolloNamedOptions && typeof apolloNamedOptions === 'object') {\n      for (let name in apolloNamedOptions) {\n        if (apolloNamedOptions.hasOwnProperty(name)) {\n          const options = apolloNamedOptions[name];\n          this.create(options, name);\n        }\n      }\n    }\n  }\n\n  /**\n   * Create an instance of ApolloClient\n   * @param options Options required to create ApolloClient\n   * @param name client's name\n   */\n  public create<TCacheShape>(options: ApolloClientOptions<TCacheShape>, name?: string): void {\n    if (isNamed(name)) {\n      this.createNamed<TCacheShape>(name, options);\n    } else {\n      this.createDefault<TCacheShape>(options);\n    }\n  }\n\n  /**\n   * Use a default ApolloClient\n   */\n  public default(): ApolloBase<any> {\n    return this;\n  }\n\n  /**\n   * Use a named ApolloClient\n   * @param name client's name\n   */\n  public use(name: string): ApolloBase<any> {\n    if (isNamed(name)) {\n      return this.map.get(name)!;\n    } else {\n      return this.default();\n    }\n  }\n\n  /**\n   * Create a default ApolloClient, same as `apollo.create(options)`\n   * @param options ApolloClient's options\n   */\n  public createDefault<TCacheShape>(options: ApolloClientOptions<TCacheShape>): void {\n    if (this._client) {\n      throw new Error('Apollo has been already created.');\n    }\n\n    this.client = this.ngZone.runOutsideAngular(() => new ApolloClient<TCacheShape>(options));\n  }\n\n  /**\n   * Create a named ApolloClient, same as `apollo.create(options, name)`\n   * @param name client's name\n   * @param options ApolloClient's options\n   */\n  public createNamed<TCacheShape>(name: string, options: ApolloClientOptions<TCacheShape>): void {\n    if (this.map.has(name)) {\n      throw new Error(`Client ${name} has been already created`);\n    }\n    this.map.set(\n      name,\n      new ApolloBase(\n        this.ngZone,\n        this.flags,\n        this.ngZone.runOutsideAngular(() => new ApolloClient<TCacheShape>(options)),\n      ),\n    );\n  }\n\n  /**\n   * Remember to clean up the store before removing a client\n   * @param name client's name\n   */\n  public removeClient(name?: string): void {\n    if (isNamed(name)) {\n      this.map.delete(name);\n    } else {\n      this._client = undefined;\n    }\n  }\n}\n\nfunction isNamed(name?: string): name is string {\n  return !!name && name !== 'default';\n}\n"]}