I am adding support for MMS in an application via the Twilio API. I have it working but am concerned about the storage costs on Twilio. What are the best practices for deleting images. I have found API calls to get message history and a message by message way to delete the messages. Is there a way to make a call to see all the stored images and their dates? Is there a call to delete all images older than a certain date?
Twilio Sales Engineer here.
At this time we dont have any API calls to get all stored media on Twilio, there is also no call to delete all images over x date period.
Depending on how your app has been architected its typically better to grab the media URL, download to your server and then issue the delete command initiated from the Twilio request to your server when a new message comes in.
An MMS message has a few things that separate it from a regular SMS message.
First, the POST request will contain NumMedia, which will tell you the number of media files connected to this message.
Also, the MessageSID MessageSid will start MM and an SMS message will start SM
An example would be:
MMS Messages comes into Twilio -> Twilio reaches out to your URL -> Your script downloads the media, saves to disk, places delete request into job queue -> 200 response sent back to Twilio
Related
I have an application which uses Twilio to send SMSs.
There is a situation where the application sends multiple messages to a person, for example a message with info about product P1, then another message with information about product P2, and so on. So my question is, when the person replys the SMS, how could I know to exactly what SMS he is replying?
Or is it possible that each SMS that my application sends to the same person creates different conversations in Twilio, so I can track each response per each different SMS?, if so, how I can do it?
If you trigger the SMS messages by API it's hard to know what messages the customers answer.
We got to solve this problem using Twilio Sync (https://www.twilio.com/docs/sync/api/document-resource) which is basically cloud storage, so when we need to trigger an SMS or Whatsapp message, we save some information on Twilio Sync, like Twilio number, client number and the messages that were sent.
When the customer answers the message, we send him to a Twilio Studio that runs a Function that read the Sync document and check if this customer comes from a message response, if yes, we get the triggered message and added on the conversations, so we know the message that customer answered.
The Sync isn't a database and has a limit, so depending on your message volume, it can not work well.
I am building an app using Twilio to send out text messages and phone calls. It works great but I know there are limits to the amount of messages to send out per number in any given day. The app is going to be used to send out messages in the thousands at times, for instance to alert contacts about weather cancellations.
Since I am still developing, I do not want to send out real messages to thousands of real numbers a bunch of times while I test and configure my code.
Is there any phone apis, lists, etc. of dummy numbers that can be used as my example contacts that will at least return some form of TRUE that the number exists and received my call/message? Or return something else if I hit a use limit because of the number of messages I am sending.
I think I could get everything setup with a list of 1000 numbers since I can plan out every 250-500 calls, do this or that.
Twilio developer evangelist here.
There are no lists like that that I know of.
You do have a set of test credentials that you can use to send messages to a few "magic" numbers that will behave as if the message was successful (or failed for some reason). However there's only one success message here.
The thing about the limits of 200-250 messages per number per day is that they aren't hard limits. They are just around the level that carriers will start to consider blocking your messages. At that point you will likely still get a positive response from the Twilio API as a message is queued to be sent, but it may or may not fail at delivery time.
I recommend you look into Twilio's messaging services, they allow you to create a number pool that messages are sent from. If you are sending a number of the same messages at the same time, you can also check out Twilio Notify for sending notifications. I recently wrote up a blog post on how to set up a messaging service, number pool and Notify for bulk SMS.
Let me know if that helps at all.
I want to get received messages of the same day of a phone number with the help of API or anything.
(I have purchased ofcourse a phone number)
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Requirement :
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I have a twilio app which sends 5 questions to 1000 user and users reply's to it. Like a survey. App is deployed on Azure.
I will get 5000 messages in log.
I am planning to retrieve messages by phone number and update my database from the user.
Implemented :
Implemented this https://www.twilio.com/docs/guides/sms/how-to-receive-and-reply-in-csharp. Any other idea for the requirement is also appreciated.
Twilio developer evangelist here.
I see that you've implemented the basic flow for responding to incoming SMS messages. If you are implementing surveys across a number of users my advice would be to expand on that application.
Firstly, you would need to run through your database to get all your users' phone numbers and send the first question to all of them using the Twilio REST API to send each a text message.
Then, when you receive an incoming message from one of your respondents you can find out the number that sent the message by inspecting the From parameter on the incoming request body. You can then look up your user in your database by phone number and save that response for them. Then you can use the TwiML <Message> to respond to the user and send them the next question.
This way you can collect the responses as they come in, rather than call the REST API to list all responses.
Let me know if that helps at all.
I'm wanting to update a div or some area on a page that allows the user to progress, after a Twilio text goes out and receives either a 1 (true) or 0 (false) from a remote user. I'd like to give the user 5 minutes to answer the text, and have the page display the conditional result based on that answer.
Anybody know of a way to poll a result in order to display the two options? The user sends back a 1 to Twilio, which somehow goes to my server with parameters. I'm still learning how that can be done.
So I am looking for two items:
How to receive parameters from remote SMS using Twilio, passed to my server page, basically text number, sessionID, and user choice (1 or 0)
same page display of updated response from above. I'd like to not rely on page refresh.
Twilio developer evangelist here.
When you receive an SMS message on a Twilio phone number, Twilio makes an HTTP request to your application, at a URL that you supply, with all the details about the message, including the number it was from and the body of the message.
I would recommend checking out the quick start guides that we have on the site that will get you up and running sending and receiving messages using Twilio.
Once you've got the receiving messages bit sorted you then need to connect that incoming message to the browser the user was using. I'd take a look at either Server Sent Events (which I wrote about in a different context here) or web sockets, both ways of connecting the server to the browser without needing to poll or refresh. You'll have to figure out how to create channels for your users so that they only receive their own update to the page.
I'm making an app that sends text messages to a group of people and then people can respond to the text. I want to be able to record the response, know who sent it, and associate it with the user who sent the original message. I've gotten the sending working, and I've begun putting together receiving sms messages but i'm confused. If twilio sends a post request to my server with the from number and message, how will I know which of my users sent the original message?
what if two different users send a message to the same person around the same time? what's the best way to handle this? do I need a separate 'to' number for each of my users? seems like that would get quite expensive. also, if each user has multiple campaigns (messages), how would I associate a response to a specific campaign?
i'm building a rails app.thanks
You'll want to use a different Twilio number for each contact a user sends to. This will establish a unique mapping between the 2 mobile devices and a Twilio number. This allows you to forward incoming messages sent to the Twilio number back to the appropriately mapped mobile phone. You'll do the lookup on your mapping based on who the incoming message is From.
You won't need a Twilio number for every one of your users, but you will need a pool of numbers which is the maximum number of contacts a single person can make.
There is an article on Twilio's site which gives additional information:
https://www.twilio.com/help/faq/sms/how-can-i-have-users-send-text-messages-to-each-other-over-twilio