Power BI API - How can I get reports from app.powerbi.com?

Question

I have some client that uses the Power BI App.
And with this API I want to get all the reports (.pbix) to my folder.

How can I get them?

Answer 1

You can simply open the report in your browser and save it as .pbix file:

If you want to do this using an API, you will need Export Report In Group REST API. To use it, you need to acquire an access token and add it to your request header. You can acquire it by calling some of the AcuireToken methods from ADAL.

You can use code like this (please note there is no error checking in the example):

string clientId = "xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx"; // Obtain at https://dev.powerbi.com/apps
string redirectUri = "https://login.live.com/oauth20_desktop.srf";
string resourceUri = "https://analysis.windows.net/powerbi/api";
string authorityUri = "https://login.windows.net/common/oauth2/authorize";

AuthenticationContext authContext = new AuthenticationContext(authorityUri, new TokenCache()); // PM> Install-Package Microsoft.IdentityModel.Clients.ActiveDirectory

var authenticationResult = await authContext.AcquireTokenAsync(resourceUri, clientId, new Uri(redirectUri), new PlatformParameters(PromptBehavior.Auto));
var accessToken = authenticationResult.AccessToken);

string powerBIApiUrl = "https://api.powerbi.com/v1.0/myorg/groups/{groupId}/reports/{reportKey}/Export"; // Replace groupId and reportKey with actual values

var request = WebRequest.Create(powerBIApiUrl) as HttpWebRequest;
request.KeepAlive = true;
request.Method = "GET";
request.ContentLength = 0;
request.ContentType = "application/json";
request.Headers.Add("Authorization", $"Bearer {accessToken}");

using (HttpWebResponse httpResponse = request.GetResponse() as System.Net.HttpWebResponse)
{
    //Read httpResponse.GetResponseStream() to get the .pbix file
}