This is a REST API that queries Hacker News and Reddit and returns articles that are present on both. It's my work for one take-home programming challenge for a job interview. I replaced the files that I did not create originally.
There are 2 query parameters: subreddit and max. The max parameter controls the number of Hacker News stories to search through (because a request needs to be made to the HN API for every story). The subreddit parameter picks the subreddit on Reddit. You can omit it to use the main page. Otherwise I recommend programming as the subreddit (because so many of the links in Reddit's programming subreddit are also posted to Hacker News).
There is a config in server.yaml to raise the timeout for the JerseyClient.
Build the uber jar:
./gradlew shadowJar
Then run the uber jar:
java -jar build/libs/hn-reddit-api-1.0.0-all.jar server server.yaml