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@saagarjha
Last active April 11, 2018 06:31
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Google Apps Script to post new xkcd comics to a Slack channel
function postUpdatedxkcdIfNecessary() {
var properties = PropertiesService.getUserProperties();
var latestComic = JSON.parse(UrlFetchApp.fetch("http://xkcd.com/info.0.json").getContentText());
if (latestComic["num"] > properties.getProperty("lastComic")) {
var title = latestComic["title"];
var imageURL = latestComic["img"];
var altText = latestComic["alt"];
var number = latestComic["num"];
var day = latestComic["day"];
var month = latestComic["month"];
var year = latestComic["year"];
var message = {
"token": "[SLACK AUTHENTICATION TOKEN]",
"channel": "#xkcd",
"text": "New xkcd!",
"username": "xkcd bot",
"icon_url": "[AVATAR URL]",
"attachments": JSON.stringify([
{
"title": title,
"image_url": imageURL,
},
{
"fields": [
{
"title": "Alt text:",
"value": altText,
"short": false,
},
{
"title": "Number",
"value": number.toFixed(0),
"short": true,
},
{
"title": "Date Posted",
"value": month + "/" + day + "/" + year,
"short": true,
},
{
"title": "This comic on explain xkcd:",
"value": "http://www.explainxkcd.com/wiki/index.php/" + number.toFixed(0),
"short": false,
}
],
},
]),
};
var options = {
"method": "post",
"payload": message,
};
var response = JSON.parse(UrlFetchApp.fetch("https://slack.com/api/chat.postMessage", options).getContentText());
// Set that there was a new latest comic only if there wasn't any errors
// (i.e. so that we try again next time)
if (response["ok"]) {
properties.setProperty("lastComic", number);
} else {
Logger.log(response);
}
}
}
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