[facebook] Where can I find my Facebook application id and secret key?

In my Facebook account, where can I find these application IDs, secret key, all?

You should use the Developer App.

On the right is a section titled "My Applications" from which you can select an application to see its information.

You can also go straight here as well, which will list your apps on the left.

It is under Account -> Application Settings, click on your application's profile, then go to Edit Application.

Peter's post is pretty much spot on, but if you want to learn how to navigate to it yourself here are the instructions:

On the left hand menu, you need to click "more", then you'll see "Developer", click on it. Afterwards you'll be presented with a page where your apps are listed under "My Applications" click on "See my applications". You can find all your API Key, secrets, and IDs there.

Just simply click on your app name and look on your right, you app id should be there

For your app secret, u have to click show.

Hope that helps !

Make a Facebook app with these simple steps I have written below:

1. Go to Developer tab and click on it.
2. Then go to Website Option.
3. Enter the app name which you have want.
4. Click on Create Facebook App.
5. After this you have to choose category, you can choose App for Pages.
6. Your AppId and Appkey is created automatically. The AppSecretKey is obfuscated. You can click on the show button to see your AppId and AppSecurityKey.

Dashboard -> [your app] -> [View Details] -> Settings -> Basic

source

I had a hard time finding where it is so here the image depicting it in 2019.

From 2018:

Go to Settings -> Basic -> App Secret (type your password and you're ready to go).