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jffry/egg.md

Created September 16, 2015 22:14
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  1. jffry created this gist Sep 16, 2015.
    45 changes: 45 additions & 0 deletions egg.md
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    ng-conf [tweeted](https://twitter.com/ngconf/status/643915619415388160) that they had some easter eggs. YouTube annotations
    seemed like a good place to hide one, so I scraped the annotations from their videos.

    First, can we programmatically get annotations? Yes! Googling around reveals URLs like
    `https://www.youtube.com/annotations_invideo?features=1&legacy=1&video_id=QHulaj5ZxbI`

    Second, how to get a list of all their video IDs? Quick and dirty! I opened their channel's video list
    at https://www.youtube.com/user/ngconfvideos/videos and used my browser console to scrape out the video IDs:

    ```js
    //open browser devtools on https://www.youtube.com/user/ngconfvideos/videos
    var ids = Array.prototype.slice.call(document.querySelectorAll('a[href]'))
    .map(function(a){ var m = /watch\?v=([^&]+)/i.exec(a.href); if (m) return m[1]})
    .filter(function(id){ return id; });
    console.log(ids.join('\n'));
    /* =>
    Re7jY4pRY_Y
    Re7jY4pRY_Y
    yh4ExTTrScQ
    yh4ExTTrScQ
    z0-dkOavwsg
    z0-dkOavwsg
    XQM0K6YG18s
    XQM0K6YG18s
    jzkQXlvpvHU
    jzkQXlvpvHU
    ...
    */
    ```

    Third, to search. We'll use `curl` to download all these annotations, and `grep` to look at the output.
    Paste the output from the dev console into a text editor, sort unique, and then bodge into
    something like this and run it in your shell:

    ```sh
    curl \
    "https://www.youtube.com/annotations_invideo?features=1&legacy=1&video_id=Re7jY4pRY_Y" \
    "https://www.youtube.com/annotations_invideo?features=1&legacy=1&video_id=yh4ExTTrScQ" \
    "https://www.youtube.com/annotations_invideo?features=1&legacy=1&video_id=z0-dkOavwsg" \
    "https://www.youtube.com/annotations_invideo?features=1&legacy=1&video_id=XQM0K6YG18s" \
    "https://www.youtube.com/annotations_invideo?features=1&legacy=1&video_id=jzkQXlvpvHU" \
    | grep ti.to
    ```

    ...and out pops the registration link!