Wikipedia Mediawiki API get Pageid from URL

Question

I have a set of full urls like

http://en.wikipedia.org/wiki/Episkopi_Bay
http://en.wikipedia.org/wiki/Monte_Lauro
http://en.wikipedia.org/wiki/Lampedusa
http://en.wikipedia.org/wiki/Himera
http://en.wikipedia.org/wiki/Lago_Cecita
http://en.wikipedia.org/wiki/Aspromonte

I want to find wikipedia pageids for these URLS. I have used the Mediawiki API before but I cant figure out how I may do this.

I have tried extracting the page title from the URLs by taking a substring of lastindexof("/") and the last character and then querying the API to get pageid.

http://en.wikipedia.org/wiki/Episkopi_Bay --> Episkopi_Bay
http://en.wikipedia.org/wiki/Monte_Lauro --> Monte_Lauro
http://en.wikipedia.org/wiki/Lampedusa -- > Lampedusa
http://en.wikipedia.org/wiki/Himera --> Himera
http://en.wikipedia.org/wiki/Lago_Cecita --> Lago_Cecita
http://en.wikipedia.org/wiki/Aspromonte --> Aspromonte

But the problem is that some of my links might be redirects and hence the substring might not always be the title of the page.

TL;DR : How can I find the pageid of a wikipedia page from a URL ?

Answer 1

You can add &indexpageids to your query.

For example

https://en.wikipedia.org/w/api.php?action=query&format=json&titles=Main%20Pages&indexpageids

or if you are looking for a summary at the same time, here's a more comprehensive example link:

https://en.wikipedia.org/w/api.php?action=query&format=json&titles=barberton%20daisy&prop=extracts&exintro&explaintext&redirects=1&indexpageids

Then if you parse the JSON you will see a property named pageids under query