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Articles about Courier from the Courier developer blog.

Sending Notifications via Microsoft Teams
Tony Nguyen from our engineering team returned to help me send my first notification using Microsoft Teams during our October 7th Courier Live. Together we navigated spinning up a bot application in Microsoft Azure and connected it to the Microsoft Teams integration in Courier. After updating an existing notification to include a Microsoft Teams channel, we attempted to send the notification to a channel and as a proactive message to a user.

Introducing the Lists API: Notify Lists of Users With One API Call
Courier’s Lists API lets you create lists, subscribe recipient profiles, then notify every user on the list with a single Send API call.

Building a Low Code Conference Application with Twilio and Typeform
Since our September 30th Courier Live happened during the Twilio SIGNAL conference, we did a special stream to highlight using Twilio SMS and SendGrid. Twilio Developer Evangelist Lizzie Siegle joined me for a deep dive of the low code conference application we created for SIGNAL using Typeform, Twilio, SendGrid, Glitch, and Courier.

First Look at Notifying Multiple Recipients using Lists
For our September 23 Courier Live, Danny Douglass from our engineering team returned to give us an API first look at our new lists feature. Lists allow you to send the same notification to multiple recipients using a single API call. Using our Courier Live Alert example, we walked through creating lists, subscribing existing and new recipients to it, and sending the notification using the new Send List endpoint.

Sending Notifications via Slack
As a follow up to the Courier Live where Troy and I built the Pigeon Weather App, I went back and added support for sending the notification as a direct message in Slack. Adding this additional channel only required adding the Slack provider, designing the message, and updating our Glitch App to accept Slack profile information.

Announcing Courier's $10M Series A
We're excited to announce that Courier has raised a $10.1M Series A led by Bessemer Venture Partners, with participation from Matrix Partners, Twilio, Slack, Y Combinator, and many great angel investors. This follows a previously unannounced $2.3M seed round that we raised last summer.

Controlling IoT using the Webhook Provider
Riley Napier from our engineering team returned for our September 2nd Courier Live. Together we used the Courier Webhook Provider to send a notification using an unconventional channel, a BlinkStick Square.

Designing Slack Notifications using Block Kit and Jsonnet
Earlier this summer, Riley Napier from our engineering team joined me for our June 24th Courier Live to help me build a Slack Slash Command to display estimated departure times for BART Stations. We created a Glitch ExpressJS app to accept the commands and Courier to handle the responses. We designed the messages by dynamically generating Block Kit using Jsonnet.

Getting the Most out of Courier Logs
During our August 19th Courier Live, Tony Nguyen from our engineering team joined me to talk about my favorite Courier feature, the logs. We presented a high level overview of the logs and dove into the details of each timeline event in the Courier Application. We then covered how you could retrieve the same information using the Messages API.
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