pagalvin

class DemoUserService {

  private getUserProfilePromise: Promise<EGClientUserEntity>;

  public getUserProfile(forUserID: string): Promise<EGClientUserEntity> {
    if (!this.getUserProfilePromise) {
      this.getUserProfilePromise = ...
      // See here for details: 
    }
    return this.getUserProfilePromise;

pagalvin

class DemoUserService {

  private getUserProfilePromise: Promise<EGClientUserEntity>;

  public getUserProfile(forUserID: string): Promise<EGClientUserEntity> {

    if (!this.getUserProfilePromise) {

      this.getUserProfilePromise = new Promise<EGClientUserEntity>((resolve, reject) => {

pagalvin

return new Promise<SomeModel> ( (resolve, reject) => {
  try {
    // logic goes here
  }
  catch (exception) {
    const errMsg = {
      msg: '[ServiceName]: [methodName]: ERROR! Failed to do the thing.',
      errDetails: exception
    };
    console.error(errMsg);

pagalvin

  private async handleConfirmAdvanceWorkflow() {

    this.setState(
      {
        isAdvancingWorkflow: true,
        didAdvanceWorkflow: false,
        wasErrorAdvancingWorkflow: false
      } as DraftResearchApproveOMaticState);

pagalvin

  public onInit(): Promise<void> {

    return new Promise<void>( (resolve, reject) => {
      DocumentsService.initializeInstance(this.context);
      WorkflowService.initializeInstance(this.context);
      resolve();
    });
  }
  

pagalvin

import SPHttpClient from '@microsoft/sp-http/lib/spHttpClient/SPHttpClient';
import WebPartContext from '@microsoft/sp-webpart-base/lib/core/WebPartContext';
import { ConfigService } from '../../framework/services/ConfigService/ConfigService';

export class WorkflowService {

    private static instance: EGWorkflowService;

    private constructor(private context: WebPartContext) {
        this.initialize();

pagalvin

class SearchableCat implements IBinarySearchable {

    // placeholders 
    public IsEqualTo(value): boolean { return true; };
    public IsLessThan(value): boolean { return true; };
    public IsGreaterThan(value): boolean { return true; };

    public CatName: string;
    public PreferredFood: "Wet" | "Dry";
    public Age: number;

pagalvin

class SearchableCar implements IBinarySearchable {

    // placeholders 
    public IsEqualTo(value): boolean { return true; };
    public IsLessThan(value): boolean { return true; };
    public IsGreaterThan(value): boolean { return true; };

    public CarName: string;
    public CarType: "Convertible" | "Four Door" | "Classic";

pagalvin

interface IBinarySearchable {
  IsEqualTo(value): boolean;
  IsLessThan(value): boolean;
  IsGreaterThan(value): boolean;
}

class BinarySearcher {

  static Search<T extends IBinarySearchable>(searchIn: T[], searchFor: any){
    

pagalvin

#
// Starting with ClientContext, the constructor requires a URL to the 
// server running SharePoint. 
ClientContext context = new ClientContext("http://SiteUrl"); 

// Assume that the web has a list named "Announcements". 
List announcementsList = context.Web.Lists.GetByTitle("NewsTicker"); 

// We are just creating a regular list item, so we don't need to 
// set any properties. If we wanted to create a new folder, for