![]() ![]() The formatted phone number is then stored in the Flask user session, so that it can be recalled later when the OTP is validated.Ī call is then made to the make_otp_request() function. We expect the phone number in the incoming request to be in the canonical E.164 format, so we have to remove the leading plus “+” sign as the GenerateOTP doesn’t accept it as a valid character in the initiator_id field. In our case, we can use the phone number as the initiator_id. To generate the OTP code, the GenerateOTP API needs an initiator_id which serves as an identifier for the particular user the OTP belongs to. It’s always a best practice to do server side validation even if validation is still carried out by the client. In the generate() function, we now carry out the necessary checks to ensure the phone number and the channel fields are present in the request when the form is submitted. ![]() env file and add paste your Twilio credentials, along with the Twilio phone number associated with your account: At the root of the project’s directory, create a. ![]() We are going to need these values to authenticate with the Twilio service. On your Twilio Console, copy your Account SID and Auth Token. If you are using a trial Twilio account you will need to verify your own phone number with Twilio before it can receive calls or SMS messages from the Twilio number. ![]() You can add a phone number to your account in the Buy a Number page if you don’t already have one. This is the number from which the OTPs are going to be sent. The action attribute of the form is also set to an empty string.Įnter in your browser’s address bar to see this template.Īfter you sign up for an account on Twilio, head over to your Twilio Console and set up a Twilio phone number that can make voice calls as well as send SMS messages. Fun times.This HTML file also extends the base.html layout and adds a form that allows the user input the OTP code that was received so that it can be validated. But for a while I had a full 3/5ths of FAANG cooperating for my little kindle hack. Eventually the gmail web app was updated with too much javascript for the kindle browser to handle. every 5 minutes it would log into her gmail account, check for unread text messages in the gmail inbox, and then log into her amazon account and update the kindle's name from "Wife's Kindle" to "Wife's Kindle (x)". So I hacked up a python/applescript/firefox script running on my mac mini home server. This wouldn't interrupt reading, but it would be visible on the kindle's home screen, a good compromise. so voila, it's actually an e-ink tablet, with email and SMS capability! She'd have to manually load the kindle browser to check for messages - great, really, because who wants to be interrupted with a notification while reading a book?īut after a few semi-urgent texts went unnoticed, I dreamed up a solution: change the Kindle's name based on the number of unread texts. It also had a primative web browser that was capable (just barely) of running the gmail web interface. She was also hooked on the brand new "Kindle Keyboard 3G", which came with unlimited cellular data so you'd be able to buy ebooks at any time, without wifi. Calls were forwarded to the landline, voicemails showed up as attachments. Here's a fun story from back in the decade-ago-ish days: My wife couldn't stand cellphones, so I got her hooked on Google Voice for texting, which was great - texts would show up in the gmail inbox, and you could just reply to them like emails. Pretty sure that messages sent through them are much more likely to hit spam filters or get rejected for whatever reason. In 2011 they worked pretty well, but by 2018 they were frequently down or didn't work properly. We considered setting up a real sms service like twilio but the push messaging apps had better features than sms anyway, so the sms over smtp option was just a hack for users that really wanted sms. Still we encouraged users to use a push messaging app like pushover which we integrated with, since sms through smtp often didn't deliver or took hours to arrive. We hardly ever sent more than 100 messages in an hour for all subscribers, even during a heavy storm period. It wasn't very high volume, only sent messages during active storms in the subscriber's area, and not more than one every 10 minutes or so. I worked with an app that sent weather alerts to subscribers and had used these gateways. Sometimes they take a while to deliver, they often get dropped or throttled. They might be useful for low-volume, low-priority messages or hobbies, but delivery is inconsistent. ![]()
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