core: Alexa skill account linking - invalid redirect URI

The problem

I followed all the steps in “Amazon Alexa Smart Home Skill” (Amazon Alexa Smart Home Skill - Home Assistant 3), but when I try to link my Home Assistant account to my Alexa Skill in my Android Alexa app, after logging in to Home Assistant with my CORRECT username and password I get the following message: “Error: Invalid redirect URI”. The same thing happens when I try it on my Kindle Fire Alexa app.

My Home Assistant log shows the following message after trying this:

Login attempt or request with invalid authentication from netbox (10.0.0.138). Requested URL: ‘/auth/login_flow/ab2e8de69fe2f8b99812de92d8ea6310’. (Mozilla/5.0 (Linux; Android 12; SAMSUNG SM-G990E) AppleWebKit/537.36 (KHTML, like Gecko) SamsungBrowser/19.0 Chrome/102.0.5005.125 Mobile Safari/537.36)

(The hexadecimal in the URL after login_flow is different on every attempt).

I did NOT enable the “Allow users to link their account to your skill from within your application or website” option because the documentation says that “This will require a Redirect URI, which won’t work”, but still I get the above error. I also tried to enable this option and provide the redirect URI specified at the bottom of the account linking page according to my region - same result.

The documentation page mentions that the linking can also be done by using the Alexa Web-based app, but I couldn’t find any mention of skills on the Web app.

My HA installation is accessible from the outside using HTTPS at port 443 (I forwarded it to 8123 in my router).

What version of Home Assistant Core has the issue?

2023.1.1 (Also on previous versions)

What was the last working version of Home Assistant Core?

None

What type of installation are you running?

Home Assistant Supervised

Integration causing the issue

Amazon Alexa

Link to integration documentation on our website

https://www.home-assistant.io/integrations/alexa.smart_home/

Diagnostics information

No response

Example YAML snippet

No response

Anything in the logs that might be useful for us?

Login attempt or request with invalid authentication from netbox (10.0.0.138). Requested URL: '/auth/login_flow/ab2e8de69fe2f8b99812de92d8ea6310'. (Mozilla/5.0 (Linux; Android 12; SAMSUNG SM-G990E) AppleWebKit/537.36 (KHTML, like Gecko) SamsungBrowser/19.0 Chrome/102.0.5005.125 Mobile Safari/537.36)

Additional information

No response

About this issue

Original URL
State: closed
Created a year ago
Comments: 32 (5 by maintainers)

Links to this issue

Alexa Custom Integration

Most upvoted comments

Found the solution: basically, Alexa will always assume the default language of your Alexa account to decide the server to use. Follow the follwing steps:

Open the Alexa app
Go to More > Settings > Alexa App Settings > Language
It should probably appear “English US” for you. That means it will use the US servers
Re-do the Lambda function in US (North Virginia) on AWS, change the end point of your skill to the new one on US and then change the Client ID to use

In summary, you should use your Alexa app language and not your location to follow the process.

pyrexfm on Jan 25, 2023

Found a clean solution.

Copy the url, open in text editor (Notes app for me)
replace the redirect_uri “pitagui.amazon.com” with “layla.amazon.com”
open it manually into Google Chrome

Toshe1991 on Feb 10, 2023

Ok, got it working…
Make sure the server you choose there is the same as you chose for your “client” id. Eu/US etc.

I simply changed my client ID to the US , as its 1 am and CBA to go through the list of eu data centers to find a Alexa compatible EU data center.

So my client id was: layla.amazon. … changed it to pitangui.amazon as that is US, (same as where my function lives), and working now

one can see the function location by the function ARN host name.

liaan on Jan 20, 2023