Question

我的问题是在RESTful服务中访问Dynamics CRM 365数据。

我想在RESTful服务中使用Dynamics CRM数据。此RESTful服务将用于WCF服务，以将移动应用程序连接到CRM数据访问。

我已经通过以下参考，但看起来他们中的任何一个都不适合我。在这里，我想尽量避免使用Azure。

对于上述要求，我尝试使用以下参考中提供的 CODE ： Ref 1: Microsoft CRM Web API Query Data Sample (CS)，但这也是附加截图

的错误

错误区域：在Program.cs文件中 - 当它尝试在下面的代码行中获取结果时抛出错误：

HttpResponseMessage response = SendAsJsonAsync(httpClient, HttpMethod.Post,
            "accounts", account1).Result;

如果以上参考1 分享的链接是正确的方式，而不是我应该如何获得 ClientId 和 RedirectUrl ？

Answer 1

这是使用Microsoft示例对CRM进行身份验证的代码：

public class CrmConnector
{
    private const string ApiVersion = "v8.2";

    public static HttpClient Client { get; set; }

    public CrmConnector(FileConfiguration config)
    {
        if (Client == null)
        {
            Task.WaitAll(Task.Run(async () => await ConnectToCRM(config)));
        }
    }

    /// <summary>
    /// Obtains the connection information from the application's configuration file, then 
    /// uses this info to connect to the specified CRM service.
    /// </summary>
    protected virtual async Task ConnectToCRM(Configuration config)
    {
        Authentication auth = new Authentication(config);
        Client = new HttpClient(auth.ClientHandler, true);
        Client.BaseAddress = new Uri($"{config.ServiceUrl}api/data/{ApiVersion}/");
        Client.Timeout = new TimeSpan(0, 2, 0);
        Client.DefaultRequestHeaders.Add("OData-MaxVersion", "4.0");
        Client.DefaultRequestHeaders.Add("OData-Version", "4.0");
        Client.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("application/json"));
    }
}

要传递配置文件，将如下所示：

<?xml version="1.0" encoding="utf-8"?>
<configuration>

  <startup>
    <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.5.2" />
  </startup>

  <connectionStrings>
    <clear />

    <!-- When providing a password, make sure to set the app.config file's security so that only you can read it. -->
    <add name="default"   connectionString="Url=ORG; Username=USER; Password=PASS; Domain=DOMAIN" />
    <add name="CrmOnline" connectionString="Url=https://mydomain.crm.dynamics.com/; Username=someone@mydomain.onmicrosoft.com; Password=password" />
  </connectionStrings>

  <appSettings>
    <!--For information on how to register an app and obtain the ClientId and RedirectUrl
        values see https://msdn.microsoft.com/dynamics/crm/mt149065 -->

    <!--Active Directory application registration. -->
    <!--These are dummy values and should be replaced with your actual app registration values.-->
    <add key="ClientId" value="CLIENTID" />
    <!--<add key="RedirectUrl" value="http://localhost/SdkSample" />-->

    <!-- Use an alternate configuration file for connection string and setting values. This optional setting
    enables use of an app.config file shared among multiple applications. If the specified file does
    not exist, this setting is ignored.-->
    <add key="AlternateConfig" value="C:\Temp\crmsample.exe.config"/>
  </appSettings>

</configuration>

您可以从组织中的开发人员资源获取clientId，redirectUrl是可选的，您可以使用如下对象：

CrmConnector CrmConnector = new CrmConnector(new FileConfiguration(null));

并提出要求：

public const string OdataAnnotationAll = "odata.include-annotations=*";

protected virtual async Task<HttpResponseMessage> RequestCRMAsync(HttpMethod method, string query, string pag, bool annotations)
{
    HttpRequestMessage request = new HttpRequestMessage(method, query);
    request.Headers.Add("Prefer", "odata.maxpagesize=" + pag);

    if (annotations)
    {
        request.Headers.Add("Prefer", OdataAnnotationAll);
    }

    return await CrmConnector.Client.SendAsync(request);
}

阅读回复：

using Newtonsoft.Json;

public virtual async Task<JObject> RequestCRM(HttpMethod method, string query, string pag, bool annotations)
{
    JObject responseObject = new JObject();
    HttpResponseMessage response = await RequestCRMAsync(method, query, pag, annotations);

    if (response.StatusCode == HttpStatusCode.OK || response.StatusCode == HttpStatusCode.NoContent)
    {
        responseObject = JsonConvert.DeserializeObject<JObject>(response.Content.ReadAsStringAsync().Result);
    }
    else
    {
        throw new CrmHttpResponseException(response.Content);
    }

    return responseObject;
}

如果您正在进行创建或更新，则必须在体内发送参数：

JObject data = new JObject();
data.Add("firstname", "Sxntk");
data.Add("lastname", "IG");
data.Add("annualincome", "1000000000");
request.Content = new StringContent(data.ToString(), Encoding.UTF8, "application/json");

如果它是创建或更新，guid将出现在这个标题中：

protected virtual string GetGuidFromResponse(HttpResponseMessage response)
{
    string RegexGuid = @"(\{){0,1}[0-9a-fA-F]{8}\-[0-9a-fA-F]{4}\-[0-9a-fA-F]{4}\-[0-9a-fA-F]{4}\-[0-9a-fA-F]{12}(\}){0,1}";

    // Get the url -> http://~/entity(guid)
    var urlHeader = response.Headers.FirstOrDefault(x => x.Key == "OData-EntityId");

    //Type of this is KeyPairValue
    if (urlHeader.Value == null)
    {
        return null;
    }

    // Get the guid form url
    return Regex.Matches(urlHeader.Value.FirstOrDefault(), RegexGuid)?[0].Value;
}

更新http方法是PATCH而不是POST。

来自微软助手的条款是身份验证，配置，例外和CrmConnector修改。

使用Web API的服务根URL访问CRM Dynamics 365数据

1 个答案: