How we bootstrapped Lanyrd using Twitter's social graph
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How we bootstrapped Lanyrd using Twitter's social graph

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A talk presented at the London Web meetup on 21st July 2011.

A talk presented at the London Web meetup on 21st July 2011.

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    How we bootstrapped Lanyrd using Twitter's social graph How we bootstrapped Lanyrd using Twitter's social graph Presentation Transcript

    • Lanyrd.comHow we bootstrapped Lanyrd using Twitter’s social graph Simon Willison @simonw
    • Lanyrd.com Definitive database of professional events and speakers
    • Lanyrd.com Definitive database Social event recommendation of professional events Comprehensive speaker profiles and speakers Archive of slides, notes and video
    • Lanyrd.com Demo
    • Lanyrd.comWhy does it work?•The right crowdsourcing incentives•Wiki-style shared ownership•The parts support the whole•Twitter!
    • Lanyrd.comWhy Twitter?•It’s where the event discussion happens•Speakers promote their Twitter accounts•Follow beats Friend for recommendations•Culturally amenable to public profiles
    • Lanyrd.comBootstrapping•Classic social software challenge•Our secret weapon: the speakers!•Twitter accounts are public identifiers•(and speakers have lots of followers)•500 profiles before launching our beta
    • Lanyrd.com More demos
    • Lanyrd.com Key Twitter APIs
    • Lanyrd.com friends/ids.json [43593, 19972629, 778518, 1249881, 70478255, 3829151, 350373, 12161, 13141, 751953, 22785347, 2633711, 14835908, 143883, 14159138, 11963132, 14917418, 15732699, 756475, ...]
    • Lanyrd.com friendships/create
    • Lanyrd.com users/search.json
    • Lanyrd.com Under the hood
    • Lanyrd.com
    • Lanyrd.com Secret weapon #1: Redis
    • Lanyrd.com Secret weapon #2: Solr
    • Lanyrd.comRedis set intersection
    • Lanyrd.comCalendar•Pull user’s friends/ids.json•Cache for ten hours•Store in Redis•Solr search: attendees:(34722 OR 1312313 OR...
    • Lanyrd.com Pros and cons
    • Lanyrd.comPros•One-click signup•Naturally viral•Instant personalisation•Pre-created profiles, ready to be claimed•APIs are pleasant to work with
    • Lanyrd.comCons•One big, scary dependency•No namespace control•Hard to optimise, as no local graph copy•Some users follow/are-followed a LOT•OAuth permissions...
    • Lanyrd.com Permissions hell
    • Lanyrd.com Tweet this: @lanyrd attending #londonweb lanyrd.com/adthp