Angular code samples

Using IDataService

Retrieving data using the IDataService

Inject the IDataService in your components constructor:

constructor(
    @Inject('IDataService')
    private _ds: wy.IDataService) {
}

Fetching data from the API

async ngOnInit() {
    await this.loadUsers();
}

async loadUsers() {
    // query users
    const users = await this._ds.fetch<HelloWorld.NgLayer.User>('Default', '/Users', {
        select: 'Name,Email', // optional field selection, by default all fields are fetched
        filter: 'Active eq true', // optional filter, by default no filter is applied
        orderby: 'Name', // optional, by default no sorting is applied
        top: 100, // optional, by default all entities are requested
        expand: '', // optional, expand lookup entities/navigation properties
    }).toPromise(); // ⚠️ NOTE: don't forget the toPromise() for async/await

    console.log(users);

    // fetch one user by primary key
    const user = await this._ds.fetchOne<HelloWorld.NgLayer.User>('Default', '/Users', 1).toPromise();
    console.log(user);

    // fetch first user
    const firstUser = await this._ds.fetchFirst<HelloWorld.NgLayer.User>('Default', '/Users').toPromise();
    console.log(firstUser);
}

Creating/updating data using the API

private async crudExamples() {
    // create new user
    const newUser: Partial<HelloWorld.NgLayer.User> = {
        Name: 'testuser@test.com',
        Active: true,
        Email: 'my@email.com',            
    };

    await this._ds.save('Default', '/Users', newUser as wy.BaseEntity, true)
        .toPromise();

    // update existing user
    const existingUser: Partial<HelloWorld.NgLayer.User> = {
        Id: 1,
        Name: 'testuser@test.com',
        Active: true,
        Email: 'my@email.com',            
    };
    
    await this._ds.save('Default', '/Users', existingUser as wy.BaseEntity, false)
        .toPromise();

    // remove user
    await this._ds.remove('Default', '/Users', {
        Id: 1
    }).toPromise();

    // restoring a user from the recycle bin (soft delete mode only)
    await this._ds.restore('Default', '/Users', {
        Id: 1
    }).toPromise();
}

Executing API operations

private async operationExamples() {
    // trigger operation (global)
    await this._ds.triggerOperation('Default', null, 'ResetAllUsers', null, {
        arg1: 123, // provide optional operation arguments
        arg2: "test"
    }).toPromise();

    // trigger operation (on a specific entity)
    await this._ds.triggerOperation('Default', '/Users', 'ResetUser', 1, {
        arg1: 123, // provide optional operation arguments
        arg2: "test"
    }).toPromise();
}

Using other services

Check also the following services that are available using DI:

• IAuthenticationService
• IBlobService
• IConstantService
• IUtilService
• ILinkService
• IMessageService
• ISocialService
• IInsightsService
• IQueryListService
• IWorkflowService
• IStorageService
• IUserSettingsService
• IFeatureService
• IAnonymousService