![]() Your application can then perform whatever logic is necessary, then reply to Twilio with a response containing the instructions you’d like Twilio to perform. Twilio’s request to your application includes details of the event like the body of an incoming message or the incoming phone number. When the webhook event occurs, Twilio makes an HTTP request (usually POST or GET) to the URL you have configured for your webhook. Twilio uses webhooks to let your application know when events happen, like getting an incoming call or receiving an SMS message. Webhooks are user-defined HTTP callbacks triggered by an event in a web application. Check out our guidance for setting environment variables to learn more. ![]() You should always use environment variables to keep your Account SID and Auth Token secret before sharing any code or deploying to production. Authenticate using the Twilio SDKsĪt this time, Twilio offers officially supported server-side libraries in the following languages:Īll of these helper libraries come with a Utilities class that facilitates request validation by passing your Account SID and Auth Token (found in the Console) to the library. Using the wrong content type may result in unexpected behavior or errors. Twilio's APIs expect the content type of API requests to be either application/x-Please ensure that your API requests are formatted correctly using the appropriate content type to ensure successful communication with the Twilio APIs. You can learn more about how Twilio handles authentication in our security documentation. Twilio will authenticate to your web server using the provided username and password and will remain logged in for the duration of the action. In order to authenticate with HTTP, you may provide a username and password with the following URL format: This allows you to protect the URLs on your web server so that only you and Twilio can access them. Twilio supports HTTP Basic authentication. Working with Twilio’s APIs Authenticate with HTTP In Twilio’s ecosystem, each product is its own API, but you will work with each of them in roughly the same way, whether directly over HTTP or using Twilio’s helper libraries for several different programming languages. Twilio, for example, provides many separate REST APIs for sending text messages, making phone calls, looking up phone numbers, managing your accounts, and a whole lot more. How they are defined is confusing, but the general rule is: use POST to create resources, and PUT to update resources. The action represented by the first and last of these is clear, but POST and PUT have specific meanings. Often resources have one or more methods that can be performed on them over HTTP, like GET, POST, PUT, and DELETE. These URLs represent various resources - any information or content accessed at that location, which can be returned as JSON, HTML, audio files, or images. When people use the term ‘REST API’, they are generally referring to an API accessed using the HTTP protocol at a predefined set of URLs. This is an architectural pattern that describes how distributed systems can expose a consistent interface. REST stands for ‘ Representational State Transfer’. An API is a set of rules that lets programs talk to each other, exposing data and functionality across the Internet in a consistent format. What is a REST API, anyway?ĪPI is short for ‘Application Programming Interface’. You can browse the various APIs here, or jump straight to the API reference for Programmable SMS or Programmable Voice. You can find Twilio’s API reference documentation throughout our product documentation. Twilio has a whole host of APIs, from SMS to Voice to Wireless. Twilio products: API docs, quickstarts, and tutorials.Secure your app by validating incoming Twilio requests.Set up your local development environmentĪlternative representations and data types.
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