1) you need to get all your articles in some sort of search index. Sounds like you will want, at minimum, full text search on article content, plus maybe search of some extracted metadata (depending on if you can get something consistent easily).
2) a little API for serving up search results.
3) integration with something like this BotEngine thing for controlling the front-end/user interface to your data + search backend.
Comments
you need more than just this.
1) you need to get all your articles in some sort of search index. Sounds like you will want, at minimum, full text search on article content, plus maybe search of some extracted metadata (depending on if you can get something consistent easily).
2) a little API for serving up search results.
3) integration with something like this BotEngine thing for controlling the front-end/user interface to your data + search backend.