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CatFacts code for webtask.io
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wt cron schedule --name cat-facts \ | |
--param to=<ENEMY_PHONE_NUMBER> \ | |
--secret SID=<TWILIO_SID> \ | |
--secret TOKEN=<TWILIO_TOKEN> \ | |
--secret NUMBER=<TWILIO_NUMBER> \ | |
"<CRON SCHEDULE>" \ | |
<PATH_TO_FILE> |
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"use latest"; | |
const Twilio = require('twilio') | |
const E164_REGEXP = /^\+?[1-9]\d{1,14}$/ | |
const FACTS = [ | |
"The heaviest cat ever recorded was 46 lbs.", | |
"A tabby named \"Dusty\" gave birth to 420 documented kittens in her lifetime.", | |
"A female tabby named \"Ma\" lived for 34 years making her the oldest reliably documented housecat.", | |
"Cats can't taste sweets.", | |
"A cat has 32 muscles in each ear.", | |
"Neutering a cat extends it's life span by two or three years.", | |
"A cat's tongue consists of small \"hooks\" which come in handy when tearing up food.", | |
"Cats must have fat in their diet because they can't produce it on their own.", | |
"Cat's urine glows under a black light.", | |
"Cats have a third eyelid called a haw and you will probably only see it when kitty isn't feeling well.", | |
"Cats sleep 16 to 18 hours per day.", | |
"Cats are the only animal that walk on their claws not the pads of their feet.", | |
"Newborn kittens have closed ear canals that don't begin to open for nine days.", | |
"A kittens eyes are always blue at first.", | |
"A cat cannot see directly under its nose.", | |
"Most deaf cats do not meow.", | |
] | |
/** | |
* Returns a random fact from the FACTS collection | |
* | |
* @return {string} | |
*/ | |
const randomFact = () => { | |
return FACTS[Math.floor(Math.random() * FACTS.length)] | |
} | |
/** | |
* Sends a SMS using the twilio client. Should be called with | |
* env variables in scope. | |
* | |
* @param {object} params - params to send to Twilio. Requires a `to` field. | |
* @param {function} cb - callback function. Is passed (error, response) | |
* @void | |
*/ | |
const sms = function(params, cb) { | |
const { SID, TOKEN, NUMBER: from } = this.secrets | |
const body = randomFact() | |
Twilio(SID, TOKEN).sendMessage({ from, body, ...params }, (err, data) => { | |
if (err) cb(err) | |
cb(null, `Successfully sent CatFact to ${data.to}`) | |
}) | |
} | |
/** | |
* Checks to see whether the number is a valid E.164 number | |
* | |
* @param {string} number | |
* @return {bool} | |
*/ | |
const validateNumber = number => { | |
return E164_REGEXP.test(number) | |
} | |
/** | |
* Strips extra characters from a phone number, leaving only | |
* a leading + followed by numbers. | |
* | |
* @param {string} number | |
* @return {string} | |
*/ | |
const formatNumber = number => { | |
return (number || "") | |
.replace(/[^\d+]/g, '') | |
.replace(/(.)\++/g, '$1') | |
} | |
/** | |
* Sends a random cat fact to a given user. Expects 3 secrets: SID, TOKEN, and NUMBER. | |
* Also requires a `to` parameter. | |
* | |
* Use responsibly. | |
*/ | |
module.exports = (ctx, cb) => { | |
const to = formatNumber(ctx.data.to) | |
if (!to) cb('A `to` parameter is required.') | |
if (!validateNumber(to)) cb('`' + to + '` is not a valid number (must be E.164 format)') | |
sms.call(ctx, {to}, cb) | |
} |
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