Power Bi Embedded Not working Can t login with Master User

Question

Good day to all of you. I have a problem with probably not fully understanding how to embed PBI report in my Xamarin app.  I got my access token and I used Master User for this, but after i GET EmbedUrl and put it in Source proprety of WebView, i get a message: "Please sing in to view this report". This is a problem because my customers don't have PowerBi account and I want them to be able to see this report. Problem might be in my headers I use to get access token, so below is code I use

string url = "https://login.microsoftonline.com/" + tennant_id + "/oauth2/token"; //url to which I POST to

IEnumerable<KeyValuePair<string, string>> parameters = new List<KeyValuePair<string, string>>()
{
new KeyValuePair<string, string>("authenticationType", "MasterUser"),
new KeyValuePair<string, string>("name", "<name>"),
new KeyValuePair<string, string>("workspaceId", "<workspaceId>"),
new KeyValuePair<string, string>("grant_type", "password"),
new KeyValuePair<string, string>("scope", "https://analysis.windows.net/powerbi/api/.default"),
new KeyValuePair<string, string>("resource", "https://analysis.windows.net/powerbi/api"),
new KeyValuePair<string, string>("authorityUrl", "https://login.microsoftonline.com/organizations/"),
new KeyValuePair<string, string>("urlPowerBiServiceApiRoot", "https://api.powerbi.com/"),
new KeyValuePair<string, string>("client_id", "<clientID>"),
new KeyValuePair<string, string>("username", "<username>"),
new KeyValuePair<string, string>("password", "<password>"),
new KeyValuePair<string, string>("client_secret", "<clientSecret>")
};

 After I get access token, I use it in GET request to 

https://api.powerbi.com/v1.0/myorg/reports/<report_it>

 and I pass AuthenticationHeader as 

client.DefaultRequestHeaders.Authorization = new System.Net.Http.Headers.AuthenticationHeaderValue("Bearer", accessToken);

Then I get my embed url which I use in WebView Source property but I am not logged in. When I do login i see this report, but otherwise I can't. Where am I making a mistake/mistakes? I'm new to PowerBi embedding so please explain it like you would to a child.

Answer 1

I figured it out, and I'll put the solution here in case anyone else runs into this in the future. As @AndreyNikolov mentioned, I had to utilise JavaScript SDK, but his references were a little out of date, and some of the information there is no longer relevant, but they were still helpful. Anyway, let's start from the beginning: I had to include WebView in the xaml file as follows:

Then I tried adding files from the JavaScript API, but I couldn't get them to function (because the documentation was too difficult), so I made some tweaks and used files from my github repo.

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