What is SHA1 fingerprint?

Question

I am obtaining a Google Play API key from Google, and it is asking to enter SHA1 fingerprint. I want to know what is SHA1 fingerprint? I also wanted to know weather this API key

Answer 1

From a Windows command prompt, navigate to the root of the project. The gradlew file will be there.

type this at the prompt and (enter): gradlew signingReport

in the report look for something like: SHA1: A7:89:E5:05:C8:17:A1:22:EA:90:6E:A6:EA:A3:D4:8B:3A:30:AB:18