c# 获取钉钉流程 详细demo

以下是使用C#获取钉钉流程的详细示例代码：

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using DingTalk.Api;
using DingTalk.Api.Request;
using DingTalk.Api.Response;

namespace DingTalkDemo
{
    class Program
    {
        static void Main(string[] args)
        {
            // 钉钉开放平台应用的AppKey
            string appKey = "your app key";
            // 钉钉开放平台应用的AppSecret
            string appSecret = "your app secret";
            // 钉钉企业ID
            string corpId = "your corp id";
            // 钉钉企业应用的AgentId
            string agentId = "your agent id";
            // 钉钉企业应用的授权码
            string accessToken = GetAccessToken(appKey, appSecret, corpId, agentId);

            // 获取流程实例列表
            string processCode = "your process code";
            string startTime = "2021-01-01 00:00:00";
            string endTime = "2021-12-31 23:59:59";
            int cursor = 0;
            int size = 20;
            OapiProcessinstanceListidsRequest req = new OapiProcessinstanceListidsRequest();
            req.ProcessCode = processCode;
            req.StartTime = ConvertDateTimeToInt(startTime);
            req.EndTime = ConvertDateTimeToInt(endTime);
            req.Cursor = cursor;
            req.Size = size;
            OapiProcessinstanceListidsResponse rsp = GetResponse<OapiProcessinstanceListidsResponse>(req, accessToken);
            Console.WriteLine(rsp.Body);

            // 获取流程实例详情
            string processInstanceId = "your process instance id";
            OapiProcessinstanceGetRequest req2 = new OapiProcessinstanceGetRequest();
            req2.ProcessInstanceId = processInstanceId;
            OapiProcessinstanceGetResponse rsp2 = GetResponse<OapiProcessinstanceGetResponse>(req2, accessToken);
            Console.WriteLine(rsp2.Body);

            Console.ReadKey();
        }

        static string GetAccessToken(string appKey, string appSecret, string corpId, string agentId)
        {
            IDingTalkClient client = new DefaultDingTalkClient("https://oapi.dingtalk.com/gettoken");
            OapiGettokenRequest req = new OapiGettokenRequest();
            req.Appkey = appKey;
            req.Appsecret = appSecret;
            req.SetHttpMethod("GET");
            OapiGettokenResponse rsp = client.Execute(req);
            if (rsp.Errcode != 0)
            {
                throw new Exception("获取access_token失败，错误码：" + rsp.Errcode + "，错误信息：" + rsp.Errmsg);
            }
            string accessToken = rsp.AccessToken;

            client = new DefaultDingTalkClient("https://oapi.dingtalk.com/topapi/authcorp/scopes");
            OapiAuthcorpScopesRequest req2 = new OapiAuthcorpScopesRequest();
            req2.MicroappAgentId = agentId;
            req2.CorpId = corpId;
            req2.SetHttpMethod("GET");
            OapiAuthcorpScopesResponse rsp2 = GetResponse<OapiAuthcorpScopesResponse>(req2, accessToken);
            if (rsp2.Errcode != 0)
            {
                throw new Exception("获取授权码失败，错误码：" + rsp2.Errcode + "，错误信息：" + rsp2.Errmsg);
            }
            string authCode = rsp2.AuthScopes.AuthUserid;

            client = new DefaultDingTalkClient("https://oapi.dingtalk.com/topapi/v2/user/getuserinfo");
            OapiV2UserGetuserinfoRequest req3 = new OapiV2UserGetuserinfoRequest();
            req3.SetHttpMethod("GET");
            OapiV2UserGetuserinfoResponse rsp3 = GetResponse<OapiV2UserGetuserinfoResponse>(req3, accessToken, authCode);
            if (rsp3.Errcode != 0)
            {
                throw new Exception("获取用户ID失败，错误码：" + rsp3.Errcode + "，错误信息：" + rsp3.Errmsg);
            }
            string userId = rsp3.Result.Userid;

            client = new DefaultDingTalkClient("https://oapi.dingtalk.com/topapi/v2/user/get");
            OapiV2UserGetRequest req4 = new OapiV2UserGetRequest();
            req4.Userid = userId;
            req4.SetHttpMethod("GET");
            OapiV2UserGetResponse rsp4 = GetResponse<OapiV2UserGetResponse>(req4, accessToken);
            if (rsp4.Errcode != 0)
            {
                throw new Exception("获取用户详情失败，错误码：" + rsp4.Errcode + "，错误信息：" + rsp4.Errmsg);
            }

            string accessToken2 = rsp4.Result.AuthAccessToken;
            return accessToken2;
        }

        static T GetResponse<T>(IDingTalkRequest<T> request, string accessToken, string authCode = null) where T : DingTalkResponse
        {
            IDingTalkClient client = new DefaultDingTalkClient(request.GetApiName());
            request.SetHttpMethod(request.GetHttpMethod());
            request.SetAccessToken(accessToken);
            if (!string.IsNullOrEmpty(authCode))
            {
                request.SetAuthCode(authCode);
            }
            return client.Execute(request);
        }

        static long ConvertDateTimeToInt(string dateTimeString)
        {
            DateTime dt = Convert.ToDateTime(dateTimeString);
            DateTime dtStart = TimeZone.CurrentTimeZone.ToLocalTime(new DateTime(1970, 1, 1, 0, 0, 0));
            return (long)(dt - dtStart).TotalMilliseconds;
        }
    }
}

其中，`GetAccessToken`方法用于获取访问钉钉开放平台API的`accessToken`，需要传入应用的`appKey`、`appSecret`、企业ID`corpId`和应用的`agentId`，并调用钉钉开放平台的接口获取授权码和用户ID，最终获取`accessToken`，具体实现可以参考代码。

在获取`accessToken`之后，我们可以通过调用钉钉开放平台提供的API获取流程实例列表和流程实例详情，示例代码中分别演示了如何获取流程实例列表和流程实例详情。

需要注意的是，示例代码中使用了钉钉开放平台的SDK进行API调用，需要在项目中引用相应的SDK，具体可以参考钉钉开放平台的文档。