【发布时间】:2019-10-16 00:32:17
【问题描述】:
我正在 C# 中构建 console application。
我想调用 Microsoft Graph API 以访问和编辑我的 SharePoint 中的一些 Excel 文件这样我就可以自动化我组织中的一些流程。
应用程序的逻辑很简单。
- 我调用
Azure Active Directory以使用客户端凭据流验证此控制台应用程序,这意味着我们将提供clientsID 和AppKey。我从 Azure Active Directory > App Registrations 获取了 clientsID 和 AppKey。 - 然后我想接收访问令牌并使用它向 Microsoft Graph API 发出 GET 请求。
例如https://graph.microsoft.com/v1.0/me/
然后回应我得到的是这样的:
{
"error": {
"code": "InvalidAuthenticationToken",
"message": "Access token validation failure. Invalid audience.",
"innerError": {
"request-id": "0a3ec**************",
"date": "2019-10-15T13:54:33"
}
}
}
下面你会找到我的应用程序的完整代码,其中有两种获取访问令牌和调用 Graph API 的方法:
using Microsoft.IdentityModel.Clients.ActiveDirectory;
using System;
using System.Collections.Generic;
using System.Globalization;
using System.IdentityModel.Tokens;
using System.IO;
using System.Linq;
using System.Net;
using System.Net.Http;
using System.Net.Http.Headers;
using System.Text;
using System.Threading.Tasks;
using AuthenticationContext = Microsoft.IdentityModel.Clients.ActiveDirectory.AuthenticationContext;
namespace Project_Budget
{
class Program
{
private const string clientId = "14f1****************";
private const string aadInstance = "https://login.microsoftonline.com/{0}";
private const string tenant = "******.onmicrosoft.com";
private const string resource = "https://graph.windows.net";
private const string appKey = "IKV***********";
static string authority = String.Format(CultureInfo.InvariantCulture, aadInstance, tenant);
private static HttpClient httpClient = new HttpClient();
private static AuthenticationContext context = null;
private static ClientCredential credential = null;
static void Main(string[] args)
{
context = new AuthenticationContext(authority);
credential = new ClientCredential(clientId,appKey);
Task<string> token = GetToken();
token.Wait();
//Console.WriteLine(token.Result + "\n");
Task<string> graphCall = GetExcelFile(token.Result);
graphCall.Wait();
Console.WriteLine(graphCall.Result + "\n");
Console.ReadLine();
}
private static async Task<string> GetExcelFile(string result)
{
string apiJsonResult = null;
var apiCallString = "https://graph.microsoft.com/v1.0/me/";
httpClient.DefaultRequestHeaders.Authorization = new AuthenticationHeaderValue("Bearer", result);
var getResult = await httpClient.GetAsync(apiCallString);
if (getResult.Content != null)
{
apiJsonResult = await getResult.Content.ReadAsStringAsync();
}
return apiJsonResult;
}
private static async Task<string> GetToken()
{
AuthenticationResult result = null;
string token = null;
result = await context.AcquireTokenAsync(resource, credential); //authentication context object
token = result.AccessToken;
return token;
}
}
}
我已授予应用运行所需的所有访问权限。我也在Graph Explorer 上运行查询并正常运行。
为什么我会在控制台应用程序上收到此错误?
【问题讨论】:
标签: c# .net console-application microsoft-graph-api