Dynamics CRM 365 Web API 入门

创建 Visual Studio 项目

1. 启动 Visual Studio 2022，然后选择“创建新项目”。
2. 创建新的控制台应用项目。
3. 通过设置“位置”和“项目名称”来配置项目。
4. 通过选择“.NET 8.0（长期支持）”和“不使用顶级语句”来配置项目。然后单击“创建”。

编辑Program.cs

按照以下后续步骤为主程序添加代码。

1. 将Program.cs替换为以下代码。

   using System.Net;
   using System.Text.Json;
   
   namespace WebAPIQuickStart
   {
       internal class Program
       {
           static async Task Main()
           {
               string userName = "";
               string password = "";
               string domainName = "";
               string webAPIBaseAddress = "https://<env-name>/D365/api/data/v9.1/";//修改环境地址
               HttpClient client = GetNewHttpClient(userName, password, domainName, webAPIBaseAddress);
               #region Web API call
   
               var response = await client.GetAsync("WhoAmI");
   
               if (response.IsSuccessStatusCode)
               {
                   Guid userId = new();
   
                   string jsonContent = await response.Content.ReadAsStringAsync();
   
                   // Using System.Text.Json
                   //using (JsonDocument doc = JsonDocument.Parse(jsonContent))
                   //{
                   //    JsonElement root = doc.RootElement;
                   //    JsonElement userIdElement = root.GetProperty("UserId");
                   //    userId = userIdElement.GetGuid();
                   //}
   
                   // Alternate code, but requires that the WhoAmIResponse class be defined (see below).
                   WhoAmIResponse whoAmIresponse = JsonSerializer.Deserialize<WhoAmIResponse>(jsonContent);
                   userId = whoAmIresponse.UserId;
   
                   Console.WriteLine($"Your user ID is {userId}");
               }
               else
               {
                   Console.WriteLine("Web API call failed");
                   Console.WriteLine("Reason: " + response.ReasonPhrase);
               }
               #endregion Web API call
   
               Console.ReadKey();
           }
   
           private static HttpClient GetNewHttpClient(string userName, string password, string domainName, string webAPIBaseAddress)
           {
               HttpClient client = new HttpClient(new HttpClientHandler() { Credentials = new NetworkCredential(userName, password, domainName) });
               client.BaseAddress = new Uri(webAPIBaseAddress);
               client.Timeout = new TimeSpan(0, 2, 0);
               return client;
           }
       }
   
       /// <summary>
       /// WhoAmIResponse class definition 
       /// </summary>
       /// <remarks>To be used for JSON deserialization.</remarks>
       public class WhoAmIResponse
       {
           public Guid BusinessUnitId { get; set; }
           public Guid UserId { get; set; }
           public Guid OrganizationId { get; set; }
       }
   }
   

运行程序

查看控制台应用程序窗口。输出应如下所示：