Walkie-Talkie Signals

Picture a walkie-talkie connecting your app directly to Mailofly. Whenever something exciting happens in your app—like a user creating an account or paying for a subscription—your app pushes the button and shouts into the walkie-talkie:

“Over here Mailofly! Sam just upgraded to the Pro plan!”

Mailofly hears the shout immediately, checks which automations are listening for that signal, and sets them in motion!

Anatomy of a Signal

Every walkie-talkie shout contains two super simple parts:

The Signal Name: A clear name describing what just happened (like user.signup or order.placed).
The Goodie Backpack (payload): A little backpack full of extra details traveling along with the shout—like the user’s first name, their plan, or their order total!

Here is what a shout looks like in code:

{
  "event": "user.signup",
  "email": "sam@example.com",
  "payload": {
    "first_name": "Sam",
    "favorite_color": "purple",
    "plan": "starter"
  }
}

Unpacking the Goodie Backpack in Your Emails

Because your signal brought a backpack of data with it, you can pull those exact words out and place them directly into your email templates using magic tags:

“Hi {{payload.first_name}}, welcome aboard! We noticed your favorite color is {{payload.favorite_color}}.”

You can also use these goodies inside Conditions to make smart choices, like:

“If payload.plan == 'starter', offer them a discount on Pro!”

How to Shout from Your Code

Sending a signal to Mailofly only takes 4 lines of code:

import { Mailofly } from "@mailofly/node";

const mailofly = new Mailofly("mf_live_xxxxxxxx");

// Shout into the walkie-talkie!
await mailofly.events.send({
  event: "user.signup",
  email: "sam@example.com",
  payload: {
    first_name: "Sam",
    plan: "starter"
  }
});

Fun Signal Ideas to Play With

Signal Name	What Just Happened	Great Automation Idea
`user.signup`	Brand new friend created an account	Send a cheerful 3-day welcome series
`order.completed`	Customer bought some goodies	Send a digital receipt + high-five
`cart.abandoned`	Left items in cart for 2 hours	Send a gentle reminder with a special perk
`streak.achieved`	Logged in 7 days in a row!	Send a celebratory badge email

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Walkie-Talkie Signals

Walkie-Talkie Signals

Anatomy of a Signal

Unpacking the Goodie Backpack in Your Emails

How to Shout from Your Code

Fun Signal Ideas to Play With

Up Next

​Walkie-Talkie Signals

​Anatomy of a Signal

​Unpacking the Goodie Backpack in Your Emails

​How to Shout from Your Code

​Fun Signal Ideas to Play With

​Up Next

Walkie-Talkie Signals

Anatomy of a Signal

Unpacking the Goodie Backpack in Your Emails

How to Shout from Your Code

Fun Signal Ideas to Play With

Up Next