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[英]PUT Request for REST API in C# console application using HttpClient()
[英]How to request report from c# console application using Telerik REST API
我有Telerik REST API,在客戶端,我正在使用html5 report-viewer
。 報表在html報表中成功生成。 現在,我想通過c#控制台應用程序從相同的API請求報告。 我有搜索,但沒有任何解決方案。 請給我建議一種如何使用C#控制台應用程序請求報告的方法。
注意:我是telerik報告的初學者。
更新1:
我已經設法使用此API文檔將請求發送到服務器。 Telerik獲取報告的文檔
在服務器端,我編寫了CustomReportResolver
。 但是現在它現在將InstanceId
發送到控制台客戶端。
CustomReportResolver
public class CustomReportResolver : IReportResolver
{
public ReportSource Resolve(string reportJsonString)
{
var reportDto = JsonConvert.DeserializeObject<ReportDTO>(reportJsonString);
var connectionStringHandler = new CustomConnectionStringManager(reportDto.CompanyId);
var reportsPath = HttpContext.Current.Server.MapPath($"~/Reports/{reportDto.ReportPath}");
var sourceReportSource = new UriReportSource { Uri = reportsPath + reportDto.ReportName };
// sourceReportSource.Parameters.Add(new Telerik.Reporting.Parameter("companyId", reportDto.CompanyId));
var reportSource = connectionStringHandler.UpdateReportSource(sourceReportSource);
return reportSource;
}
}
請注意,如果我使用默認的ReportResolver
自托管的telerik服務成功將pdf報告發送到控制台,但是如果我使用CustomReportResolver
則不會生成instanceId
。
可能是什么問題呢 ?
浪費大量時間后,找到了一種解決方案,該解決方案如何從Telerik Self托管Web服務獲取PDF
(或其他報告格式)文檔。 以下是要遵循的一般步驟。
下面是一個逐步的代碼:
static HttpClient client = new HttpClient();
static string reportServerAddress = "http://localhost:60031/";
static string serverREStAPI = reportServerAddress + "api/";
static void Main(string[] args)
{
try
{
Console.WriteLine("Demo started");
RunAsync().Wait();
Console.WriteLine("Demo ended");
Console.ReadLine();
}
catch (Exception ex)
{
Console.WriteLine(ex);
Console.ReadKey();
}
}
static async Task RunAsync()
{
// readFile();
// return;
client.BaseAddress = new Uri(serverREStAPI);
client.DefaultRequestHeaders.Accept.Clear();
client.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("text/html"));
/*
* Steps To get PDF documents from Telerik Self hosted Web Service
* Step 1) Get Client Id,
* Step 2) Get Instance Id
* Step 3) Get Document Id
* Step 4) Download Document
*
* */
var clientId = await GetClientIdAsync(serverREStAPI + "reports/clients", "clientId");
var instanceId =
await GetInstanceAsync(serverREStAPI + $"reports/clients/{clientId}/instances", "instanceId");
var documentId =
await GetDocumentAsync(serverREStAPI + $"reports/clients/{clientId}/instances/{instanceId}/documents",
"documentId");
await DownloadPDF(serverREStAPI + $"reports/clients/{clientId}/instances/{instanceId}/documents/{documentId}", true);
}
static async Task<string> GetClientIdAsync(string path, string paramName)
{
HttpResponseMessage response = await client.PostAsJsonAsync(path, "");
response.EnsureSuccessStatusCode();
var serializer = new System.Web.Script.Serialization.JavaScriptSerializer();
dynamic result = serializer.DeserializeObject(response.Content.ReadAsStringAsync().Result);
return result[paramName];
}
static async Task<string> GetInstanceAsync(string path, string paramName)
{
/*
* For Default resolver in Service
* */
var paramterValues = new {CompanyId = 1};
// var data = new { report = "{ \"ReportName\":\"test.trdx\",\"CompanyId\":\"1\"}", parameterValues = "{\"CompanyId\": \"1\"}" };
var data = new
{
report = "{\"ReportName\":\"test.trdx\",\"CompanyId\":\"1\"}",
parameterValues = paramterValues
};
HttpResponseMessage response = await client.PostAsJsonAsync(path, data);
response.EnsureSuccessStatusCode();
var serializer = new System.Web.Script.Serialization.JavaScriptSerializer();
dynamic result = serializer.DeserializeObject(response.Content.ReadAsStringAsync().Result);
return result[paramName];
}
static async Task<string> GetDocumentAsync(string path, string paramName)
{
var data = new {format = "PDF"}; //PDF,XLS,MHTML
HttpResponseMessage response = await client.PostAsJsonAsync(path, data);
response.EnsureSuccessStatusCode();
var serializer = new System.Web.Script.Serialization.JavaScriptSerializer();
dynamic result = serializer.DeserializeObject(response.Content.ReadAsStringAsync().Result);
return result[paramName];
}
static async Task DownloadPDF(string path, bool asAttachment)
{
var queryString = "";
// if (asAttachment)
// {
// queryString += "?content-disposition=attachment";
// }
var filePathAndName = @"D:\testing\tet.html";
// File.Create(filePathAndName);
// string filePath = System.IO.Path.Combine(folderName, fileName);
//System.IO.File.WriteAllText(filePathAndName, result);
using (System.Net.WebClient myWebClient = new System.Net.WebClient())
{
await myWebClient.DownloadFileTaskAsync(new Uri(path + queryString), filePathAndName);
}
System.Diagnostics.Process.Start(filePathAndName);
}
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