async Task<SomeKindOfDataStructure[]> GetUsageFromGoogleAnalytics(DateTime startAtThisDate, DateTime endAtThisDate)
{
// Create the DateRange object. Here we want data from last week.
var dateRange = new DateRange
{
StartDate = startAtThisDate.ToString("yyyy-MM-dd"),
EndDate = endAtThisDate.ToString("yyyy-MM-dd")
};
// Create the Metrics and dimensions object.
// var metrics = new List<Metric> { new Metric { Expression = "ga:sessions", Alias = "Sessions" } };
// var dimensions = new List<Dimension> { new Dimension { Name = "ga:pageTitle" } };
var metrics = new List<Metric> { new Metric { Expression = "ga:uniquePageviews" } };
var dimensions = new List<Dimension> {
new Dimension { Name = "ga:date" },
new Dimension { Name = "ga:dimension1" }
};
// Get required View Id from configuration
var viewId = $"ga:{"[VIEWID]"}";
// Create the Request object.
var reportRequest = new ReportRequest
{
DateRanges = new List<DateRange> { dateRange },
Metrics = metrics,
Dimensions = dimensions,
FiltersExpression = "ga:pagePath==/index.html",
ViewId = viewId
};
var getReportsRequest = new GetReportsRequest {
ReportRequests = new List<ReportRequest> { reportRequest }
};
//Invoke Google Analytics API call and get report
var analyticsService = GetAnalyticsReportingServiceInstance();
var response = await (analyticsService.Reports.BatchGet(getReportsRequest)).ExecuteAsync();
var logins = response.Reports[0].Data.Rows.Select(row => new SomeKindOfDataStructure {
Date = new DateTime(
year: Convert.ToInt32(row.Dimensions[0].Substring(0, 4)),
month: Convert.ToInt32(row.Dimensions[0].Substring(4, 2)),
day: Convert.ToInt32(row.Dimensions[0].Substring(6, 2))),
NumberOfLogins = Convert.ToInt32(row.Metrics[0].Values[0])
})
.OrderByDescending(login => login.Date)
.ToArray();
return logins;
}
/// <summary>
/// Intializes and returns Analytics Reporting Service Instance
/// </summary>
AnalyticsReportingService GetAnalyticsReportingServiceInstance() {
var googleAuthFlow = new GoogleAuthorizationCodeFlow(new GoogleAuthorizationCodeFlow.Initializer {
ClientSecrets = new ClientSecrets {
ClientId = "[CLIENTID]",
ClientSecret = "[CLIENTSECRET]"
}
});
var responseToken = new TokenResponse {
AccessToken = "[ANALYTICSTOKEN]",
RefreshToken = "[REFRESHTOKEN]",
Scope = AnalyticsReportingService.Scope.AnalyticsReadonly, //Read-only access to Google Analytics,
TokenType = "Bearer",
};
var credential = new UserCredential(googleAuthFlow, "", responseToken);
// Create the Analytics service.
return new AnalyticsReportingService(new BaseClientService.Initializer {
HttpClientInitializer = credential,
ApplicationName = "my-super-applicatio",
});
}
