Google Calendar redirect_uri_mismatch

Question

I have a website in Visual Studio Express 2012 for Web.

I keep getting an error from google which says there isn't a match for the redirect uri's listed in the developer console when I try the code below:

private void getEvents()
    {
        UserCredential credential = GoogleWebAuthorizationBroker.AuthorizeAsync(
               new ClientSecrets
               {
                   ClientId = "CLIENTIDHERE",
                   ClientSecret = "SECRETHERE",
               },
               new[] { CalendarService.Scope.Calendar },
               "user",
               CancellationToken.None).Result;

        // Create the service.
        var service = new CalendarService(new BaseClientService.Initializer()
        {
            HttpClientInitializer = credential
        });

        List<Event> x = service.Events.List("primary").Execute().Items.ToList();
    }

I have already tried setting the default port to 8080 in visual studio and the URI's listed in my developer console are as follows:

http://localhost:8080/QFC/Coach/Manageusers.aspx

http://localhost:8080/QFC/*

http://localhost:8080/oauth2callback

http://localhost:8080/oauth2callback/

http://localhost:8080/authorize

http://localhost:8080/authorize/

http://localhost:8080/signin-google

The code mentioned above is called from http://localhost:8080/QFC/Coach/Schedule.aspx on page load. Each time I get the error the port number is different and I have no idea why. e.g. http://localhost:57002/authorize/ did not match a registered

I am using the .NET api with C#

I need to know why it's doing this and how to fix it.

When you run Visual studio in debug mode the port changes. You need to figure out how to set it up to not change port. — Linda Lawton - DaImTo, Jan 06 '15 at 07:44
I noticed that too now... I fixed it by adding: http://localhost/authorize/ to the list of uris. Thanks! — msbarnard, Jan 06 '15 at 07:48
Do not forget to accept your own answer (when time allows it) then :) — RvdV79, Jan 06 '15 at 07:53

score 5 · Accepted Answer · answered Jan 06 '15 at 07:50

5

Added http://localhost/authorize/ to the list of allowed URI's. This somehow makes google verification ignore the port. But it works!

answered Jan 06 '15 at 07:50

msbarnard

644
2
8
19

I'm having the same problem and tried to add so many different URIs, also http(s)://localhost/authorize. The problem is that the port always changes and Google doesn't ignore it! Did you also configure the OAuth2 authentication service for Google in your Project? – Cheshire Cat Mar 11 '15 at 07:25
No I didn't... I struggled for a long time with this, and adding that line to the list of allowed URI's just fixed it. I did nothing else. – msbarnard Mar 17 '15 at 13:17

score 3 · Answer 2 · answered Feb 20 '21 at 11:58

3

In my case I was doing the quickstart with no prior knowledge of Google Calendar API. The solution was adding:

http://localhost/

and waiting a few minutes for an update

answered Feb 20 '21 at 11:58

juan Isaza

3,646
3
31
37

Google Calendar redirect_uri_mismatch

2 Answers2

Linked