Hello,
I have followed the guide at https://kumarvikram.com/google-analytics-report-v4-csharp-console-app/ to create a C# script to get data using Google Analytics Reporting V4 API. The guide is written as a C# console program, but I am using SSIS to try to accomplish
the same results using a Script Task.
I have done the prerequisities needed to fetch data from Google Analytics Reporting, such as creating a service account and granting it read & analyze permission at Google Analytics.
When I try to execute the package I get the error "Cannot execute script because the script entry point is invalid".
What I have tried
Seeing as I have copied a C# console code into a SSIS Script Task, I have gathered that some of the autogenerated code in C# is neccessary.I have therefore deleted the old script task, and made a new one with the auto generated C# code intact.I have read that this is a common cause of the issue.
I have looked into the settings of the script task and I have tried to use entry point valueMain and ScriptMain, both to no avail.
I have seen that using System.Configuration requires you to add a reference to System.Configuration even though it does not give you errors when you do not have it referenced in the project.I have added a reference to System.Configuration.
I can confirm that the SQL Server Target under project is SQL Server 2016, which is the SQL Server version used.
The code itself when I edit the script task is distributed among three files in the project. I have added a new XML file to the project, which I named App.config which consists of the following code:
<?xmlversion="1.0"encoding="utf-8"?><configuration> <appSettings> <add
key="KeyFileName"value="Your key file name here"/> <add
key="ViewId"value="Your ViewId here"/> </appSettings> <startup> <supportedRuntimeversion="v4.0"sku=".NETFramework,Version=v4.5.2"/> </startup></configuration>
I have a new Code File named ReportManager.cs looking like this:
usingGoogle.Apis.AnalyticsReporting.v4;usingGoogle.Apis.AnalyticsReporting.v4.Data;usingGoogle.Apis.Auth.OAuth2;usingGoogle.Apis.Services;usingSystem.Configuration;usingSystem.IO;namespaceGAReportExtractor.App{ publicclass
ReportManager { /// <summary> /// Intializes and returns Analytics Reporting Service Instance using the parameters stored in key file /// </summary> /// <param name="keyFileName"></param> /// <returns></returns> privatestaticAnalyticsReportingService GetAnalyticsReportingServiceInstance(stringkeyFileName) { string[] scopes = { AnalyticsReportingService.Scope.AnalyticsReadonly };//Read-only access to Google Analytics GoogleCredential credential; using(varstream = newFileStream(keyFileName, FileMode.Open, FileAccess.Read)) { credential = GoogleCredential.FromStream(stream).CreateScoped(scopes); } // Create the Analytics service. returnnewAnalyticsReportingService(newBaseClientService.Initializer() { HttpClientInitializer = credential, ApplicationName ="GA Reporting data extraction example", }); } /// <summary> /// Fetches all required reports from Google Analytics /// </summary> /// <param name="reportRequests"></param> /// <returns></returns> publicstaticGetReportsResponse GetReport(GetReportsRequest getReportsRequest) { varanalyticsService = GetAnalyticsReportingServiceInstance(ConfigurationManager.AppSettings["KeyFileName"]); returnanalyticsService.Reports.BatchGet(getReportsRequest).Execute(); } }}
and lastly I have the ScriptMain.cs file:
usingGoogle.Apis.AnalyticsReporting.v4.Data;usingSystem;usingSystem.Collections.Generic;usingSystem.Configuration;usingSystem.Linq;namespaceGAReportExtractor.App{
[Microsoft.SqlServer.Dts.Tasks.ScriptTask.SSISScriptTaskEntryPointAttribute]
public partial class ScriptMain : Microsoft.SqlServer.Dts.Tasks.ScriptTask.VSTARTScriptObjectModelBase
{
enum ScriptResults
{
Success = Microsoft.SqlServer.Dts.RunTime.DTSExecResult.Sucess,
Failure = Microsoft.SqlServer.Dts.RunTime.DTSExecResult.Failure
};
staticvoidMain(string[] args) { try { #region Prepare Report Request object // Create the DateRange object. Here we want data from last week. vardateRange = newDateRange { StartDate = DateTime.UtcNow.AddDays(-7).ToString("yyyy-MM-dd"), EndDate = DateTime.UtcNow.ToString("yyyy-MM-dd") }; // Create the Metrics and dimensions object. varmetrics = newList<Metric> { newMetric { Expression = "ga:sessions", Alias ="Sessions"} }; vardimensions = newList<Dimension> { newDimension { Name = "ga:pageTitle"} }; //Get required View Id from configuration varViewId = ConfigurationManager.AppSettings["ViewId"]; // Create the Request object. varreportRequest = newReportRequest { DateRanges =newList<DateRange> { dateRange }, Metrics = metrics, Dimensions = dimensions, ViewId = ViewId }; vargetReportsRequest = newGetReportsRequest(); getReportsRequest.ReportRequests =newList<ReportRequest> { reportRequest }; #endregion //Invoke Google Analytics API call and get report varresponse = ReportManager.GetReport(getReportsRequest); //Print report data to console PrintReport(response); } catch(Exception ex) { Console.WriteLine(ex.Message); } finally { Console.ReadLine(); }
} privatestaticvoidPrintReport(GetReportsResponse response) { foreach(varreport inresponse.Reports) { varrows = report.Data.Rows; ColumnHeader header = report.ColumnHeader; vardimensionHeaders = header.Dimensions; varmetricHeaders = header.MetricHeader.MetricHeaderEntries; if(!rows.Any()) { Console.WriteLine("No data found!"); return; } else { foreach(varrow inrows) { vardimensions = row.Dimensions; varmetrics = row.Metrics; for(inti = 0; i < dimensionHeaders.Count && i < dimensions.Count; i++) { Console.WriteLine(dimensionHeaders[i] +": "+ dimensions[i]); } for(intj = 0; j < metrics.Count; j++) { DateRangeValues values = metrics[j]; for(intk = 0; k < values.Values.Count && k < metricHeaders.Count; k++) { Console.WriteLine(metricHeaders[k].Name +": "+ values.Values[k]); } } } } } } }}