cuttlefish

Gathers data for Papers We Love meetups from different services. Currently pulls from Meetup.com and Facebook and powers the meetup data for http://paperswelove.org.

To install

$ brew cask install racket
$ cd cuttlefish
$ raco pkg install

What it does

Cuttlefish consumes a chapters.json file (sample in /private/data) and spins up workers to fetch API data for each chapter based on the adapter field within each entry.

/private/workers has modules corresponding to each service we want to hit. We currently have adapters for Meetup.com (meetup.rkt) and Facebook (facebook.rkt).

Worker functions are responsible for everything about their service (endpoints, throttling, etc) and must adhere to the following contract:

(define (worker-fooo logger id payload)

  ; ... code ....

  (cond (fail (list 'ERROR string?))
        (success (list id jsexpr?))))

Errors should be (ERROR "reason for failure containing id for logging")

Success should be a jsexpr matching the specificed format for chapter events: (id jsexpr)

Config file

1. Copy cuttlefishrc.template to .cuttlefishrc
2. Update the values inside to point to correct directories, provide API keys, etc.

Run it

Currently in hackety-hack mode, so:

$ racket main.rkt

To run with a different config:

$ racket main.rkt path/to/config/file

Head over to /tmp (in your root) and you'll see some json files like london.json and also a folder with a log file in it:

cuttlefish: 2017-03-22T18:52:19.133912109 ERROR: (boston HTTP/1.1 404 Not Found)
cuttlefish: 2017-03-22T18:52:19.168971924 WROTE: /tmp/portland.json
cuttlefish: 2017-03-22T18:52:19.480523926 WROTE: /tmp/stlouis.json
cuttlefish: 2017-03-22T18:52:19.53948291 WROTE: /tmp/london.json
cuttlefish: 2017-03-22T18:52:19.575353027 WROTE: /tmp/sanfrancisco.json
cuttlefish: 2017-03-22T18:52:20.340291016 WROTE: /tmp/newyork.json

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