TBag

import { HttpClient, IHttpClientOptions, HttpClientResponse } from '@microsoft/sp-http';

private makeRequest(value1: string, value2: string, value3: string): Promise<HttpClientResponse> {

  const postURL = "https://REST-API-URL";

  const body: string = JSON.stringify({
    'name1': value1,
    'name2': value2,
    'name3': value3,

TBag

private sendEmailViaOffice365Outlook(emailaddress: string, emailSubject: string, emailBody: string): Promise<HttpClientResponse> {

    const postURL = this.properties.flowURL;

    const body: string = JSON.stringify({
      'emailaddress': emailaddress,
      'emailSubject': emailSubject,
      'emailBody': emailBody,
    });

TBag

private sendEmail() {
    if (!this.properties.flowURL) {
      this.context.statusRenderer.renderError(this.domElement, "Flow URL is missing.  Open the property pane and specify a Flow URL.");
      return;
    }
    if (!this.validateEmail(this.properties.emailAddress)) {
      this.context.statusRenderer.renderError(this.domElement, "Email address is not valid.  Open the property pane and specify a valid email address.");
      return;
    }
    else {

TBag

private async Task<ActiveDirectoryClient> GetActiveDirectoryClient()
        {
            Uri baseServiceUri = new Uri(AADAppSettings.AADGraphResourceId);
            var tenantId = ClaimsPrincipal.Current.FindFirst("http://schemas.microsoft.com/identity/claims/tenantid").Value;
            ActiveDirectoryClient activeDirectoryClient =
                new ActiveDirectoryClient(new Uri(baseServiceUri, tenantId),
                    async () => await AcquireTokenAsync());

            return activeDirectoryClient;
        }

TBag

 public async Task CreateADUsersAndGroups()
        {
            XmlDocument sampleData = new XmlDocument();
            var sampleDataUrl = HttpContext.Current.Request.Url.Scheme + "://" + HttpContext.Current.Request.Url.Authority + "/Content/SampleData.xml";
            sampleData.Load(sampleDataUrl);

            this.client = await this.GetActiveDirectoryClient();
            //VerifiedDomain defaultDomain = await this.GetTenantDefualtDomain();
            String defaultDomainValue = System.Configuration.ConfigurationManager.AppSettings["DemoSiteCollectionOwner"].Split('@')[1];
            await ParaseXmlAndCreateADGroups(sampleData);

TBag

[HttpPost]
        public async Task<ActionResult> CreateDemoData(SuiteLevelWebApp.Models.ProvisionDemoData model)
        {
            string token = await O365Util.GetAccessToken(ServiceResources.Dashboard);            
            using (var clientContext = TokenHelper.GetClientContextWithAccessToken(DemoSiteCollectionUrl, token))
            {
                AuthenticationHelper adHelp =new AuthenticationHelper();
                await adHelp.CreateADUsersAndGroups();
                SiteProvisioning siteProvisioning = new SiteProvisioning(clientContext);
                siteProvisioning.AddSiteContents();