使用C#进行Google Analytics访问

using Google.Apis.AnalyticsReporting.v4;
using Google.Apis.AnalyticsReporting.v4.Data;
using Google.Apis.Services;
using Google.Apis.Auth.OAuth2;
using System;
using System.Collections.Generic;
using System.IO;
using System.Threading;

public class AnalyticsReportingService
{
    private readonly AnalyticsReportingServiceService _service;

    public AnalyticsReportingService(string keyFilePath)
    {
        var credential = GoogleCredential.FromFile(keyFilePath)
            .CreateScoped(AnalyticsReportingServiceService.Scope.AnalyticsReadonly);

        _service = new AnalyticsReportingServiceService(
            new BaseClientService.Initializer
            {
                HttpClientInitializer = credential,
                ApplicationName = "Analytics Reporting API Sample",
            });
    }

    public IList<ReportRow> GetRows(string viewId, string startDate, string endDate, string metric)
    {
        var dateRange = new DateRange
        {
            StartDate = startDate,
            EndDate = endDate,
        };

        var metricExpression = new Metric
        {
            Expression = metric,
            Alias = "value",
        };

        var reportRequest = new ReportRequest
        {
            ViewId = viewId,
            DateRanges = new List<DateRange> { dateRange },
            Metrics = new List<Metric> { metricExpression },
        };

        var getReportsRequest = new GetReportsRequest
        {
            ReportRequests = new List<ReportRequest> { reportRequest },
        };

        var response = _service.Reports.BatchGet(getReportsRequest).Execute();

        return response.Reports[0].Data.Rows;
    }
}