Wiki search bot

Telegram bot for doing wikipedia graph searches for the shortest paths between articles. Uses the files created with wikipedia-graph.

The project is built using functional Scala with fs2, cats and doobie.

Usage

Requirements to run:

• Scala 2.12.3 + sbt 0.13.16
• sqlite3

To run the bot you will need to get the files index.db and graph.bin created by wikipedia-graph. Then you will need to set up a Telegram bot, instructions can be found here.

Next set up webhooks for your bot and create src/main/resources/application.conf using src/main/resources/application.conf.sample and add your bot's id and the path to the data files to it.

To start the bot locally simply run sbt run. For deployment you can create a executable jar requiring only Java using sbt assembly.

Now your bot should be up and running and able to respond to questions of the form /search [Star Trek: The Next Generation] [Planar ternary ring] resulting in: Shortest path: star trek: the next generation -> ntsc -> cie 1931 color space -> projective plane -> planar ternary ring

Performance

The files created with wikipedia-graph contain around 10 million pages. A search between two articles resulting in a path of length 8 takes around 15s on my i5 laptop taking a bit over 1GB ram.