Flutter Google Direction API "This IP, site or mobile application is not authorized to use this API key."

Question

I am testing the Google Directions API on the Flutter Android app. I have created a Google Maps API key as follows:

And I have called BASE_URL https://maps.googleapis.com/maps/api/directions/json?origin=35.098480364448235,-109.62431179538783&destination=35.21340949112603,-113.15068285745188&key=Google_api_key

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result is :

How to solve this issue?

Solution

Ok, to be an acceptable answer in here for the next visitors, the application restrictions field does not work as expected. Changing it from Android Apps to None fixed the issue.

Comments

[Akif]

You can try to change application restrictions from Android Apps to none. I know, it is nonsense but I fixed the same issue this way.

[SatelBill]

Thank you for your answer. But why it is not working when I select Android app? Will it work on both android and iOS?

[Akif]

It will work on both Android and iOS. But you can define another key for iOS, and use it on iOS too.

[SatelBill]

Thank you very much.