Not able to REST call to https://graph.microsoft.com/beta/appCatalogs/teamsApps

Question

Hi Team,

I need sample code in C# or documentation how can I generate token in C# code and by using that token how can I hit the URL: and make the request to that API

https://graph.microsoft.com/beta/appCatalogs/teamsApps

Answer 1

HI @Anonymous

i can share my code for generate token with c#

private const string clientID = "xxxxxxxxxxxxxxxxxxx";
private const string aadInstance = "https://login.microsoftonline.com/{0}";                
private const string tenant = "contosoexampledomainclient.onmicrosoft.com";                
private const string resource = "https://graph.windows.net/";                
private const string appKey = "xxxxxxxxxxxxxxxxxxx";
static string authority = string.Format(CultureInfo.InvariantCulture, aadInstance, tenant);
private static HttpClient httpClient = new HttpClient();
var app = ConfidentialClientApplicationBuilder.Create(clientID)
    .WithLegacyCacheCompatibility(false)
    .WithAuthority(authority)
    .WithClientSecret(appKey)
    .Build();
var scopes = new[] { "https://graph.microsoft.com/.default" };
var result = await app.AcquireTokenForClient(scopes).ExecuteAsync();
var url = "";
string teamsApps = null;
var httpClient = new HttpClient();
httpClient.DefaultRequestHeaders.Accept.Clear();
httpClient.DefaultRequestHeaders.Authorization = new AuthenticationHeaderValue("Bearer", result.AccessToken);
url = ("https://graph.microsoft.com/beta/appCatalogs/teamsApps");                
var getResult = await httpClient.GetAsync(url);
teamsApps = await getResult.Content.ReadAsStringAsync();

In getResult you found the result of get API Microsoft.

With httpClient you found the token of microsoft.

Note important: appKey = AppSecret in azure.

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Answer 2

Hi @Hamendra Kumar (HCL Technologies Ltd)

Refer to the following code snippet:

using Microsoft.Graph;
using Azure.Identity;


var scopes = new[] { "https://graph.microsoft.com/.default" };

var tenantId = "xxxxxxxxxxxxxxxxxx";

var clientId = "xxxxxxxxxxxxxxxxx";

var clientSecret = "xxxxxxxxxxxxxxxxxxxxxxxx";

// using Azure.Identity; 
var options = new TokenCredentialOptions
{
    AuthorityHost = AzureAuthorityHosts.AzurePublicCloud
};

// https://learn.microsoft.com/dotnet/api/azure.identity.clientsecretcredential
var clientSecretCredential = new ClientSecretCredential(
    tenantId, clientId, clientSecret, options);

/*var token = await clientSecretCredential.GetTokenAsync(new TokenRequestContext(scopes));
Console.WriteLine($"Access token: {token.Token}");*/

var graphClient = new GraphServiceClient(clientSecretCredential, scopes);

var result = await graphClient.AppCatalogs.TeamsApps.GetAsync();

Console.WriteLine(result);

Hope this helps.

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