Tech Meetup WebHack would like to express the special thanks of gratitude to U-NEXT who provides the wonderful venue, food and drinks!

About WebHack

WebHack is a Tokyo-based monthly tech meetup, focusing on wide-variety, cross-discipline technology sharing, as well as networking among all tech lovers.

Introduction to WebHack #25 x U-NEXT

Talk 1:  Rethinking your data flow with GraphQL and Apollo


Stop spending so much time fumbling over managing your client state and let Apollo and GraphQL handle it for you. This talk is a shallow dive into using Apollo and GraphQL in your frontend to make your data flow easier to reason about and get you back to doing the fun things on the frontend.


Ryan Cohen is a Senior Engineer at U-NEXT.  He is currently spearheading the shift to GraphQL within the company. He also is building the U-NEXT web frontend and helping improve internal developer workflows, manage DevOps, and more. Ryan also maintains several popular OSS projects, as well as a website that is visited by over 3 million unique visitors a month.

Talk 2: Discover UI bugs before QA with Visual Regression Tests


In front end development teams, UI changes and bugs are often introduced late in the development flow. A bug found in staging takes a lot more effort to be traced and resolved than one found on a developer's laptop. This talk demonstrates a visual regression test that can be integrated into your daily development flow using Cypress.


Yifan is a senior engineer in the  U-NEXT frontend team, leading several frontend projects and continuously contributing to designing the infrastructure of the U-NEXT web front team. He is recently focusing on the Chromecast receiver app integration with Google Home and Nest Hub using TypeScript.




19:00 - 19:15 Registration and Food

19:30 - 20:10 Rethinking your data flow with GraphQL and Apollo

20:10 - 20:20 Break

20:20 - 21:00 Discover UI bugs before QA with Visual Regression Tests

21:00 - 21:30 Networking & Mingling

21:30 Good night!


U-NEXT Meguro

This meetup will be on the 9th floor of the Meguro Central Square building.
Big thanks to U-NEXT who will be hosting us for this event!


  • Meguro Station


  • Look for the WebHack staff at the lobby (3F) of Central Square building and they will guide you to the 9th floor.
  • Reception is at 9F of Meguro Central Square building