MEMBRANE
BETA
What is Membrane?
Membrane is a hosted TypeScript runtime specifically designed to build personal automation tools and interact with APIs more easily.
FEATURES- Durable Programs ....................................................................................................0
- Cron Jobs and Timers ....................................................................................................1
- Built inside VS Code ....................................................................................................2
- The Graph ....................................................................................................3
- Graph-based Access Control ....................................................................................................4
- Observability ....................................................................................................5
- Instantanous Deploys ....................................................................................................6
- Step Debugger ....................................................................................................7
- Custom Exit Nodes ....................................................................................................8
- HTTP Endpoints ....................................................................................................9
- Open Source Drivers (APIs) ....................................................................................................10
- Code completion ....................................................................................................11
EXAMPLES
- SMS Reminders ....................................................................................................9
- Discord Weather Bot ....................................................................................................10
- Mailchimp Alerts ....................................................................................................11
- Follow Hacker News Users ....................................................................................................12
- Airtable changes to Email ....................................................................................................13
- Twitter Bot ....................................................................................................14
- HTMX Form ....................................................................................................15
- Github Weekly Report ....................................................................................................16
- Github Action Alert ....................................................................................................17
- Github Commits on Discord ....................................................................................................18
- Track HN Jobs in Google Sheets ....................................................................................................19
- Mailchimp to airtable ....................................................................................................20

example airtable to email
Example of a Program for sending an email when a table in an Airtable is modified.
Subscribe to table changes
Get modified fields
Send email with record details.
import { nodes, root, state } from "membrane";
export async function configure() {
await nodes.table.changed.$subscribe(root.tableChanged);
}
export async function tableChanged(_, { event }) {
const { fields } = await event.record.$query(`{ fields }`);
const formattedFields = JSON.parse(fields);
let emailBody = ["Table has been changed. Details:\n"];
for (const fieldName in formattedFields) {
emailBody.push(`${fieldName}: ${formattedFields[fieldName]}`);
}
const subject = "Important: Airtable table has been changed";
const body = emailBody.join("\n");
await nodes.email.send({ subject, body });
}
What is Membrane?
Membrane is a hosted TypeScript runtime specifically designed to build personal automation tools and interact with APIs more easily.
FEATURESEXAMPLES
Features Walkthrough
Communication
- 2023.08.20 Progress Update #3 Simpler function signatures, built-in Google auth.
- 2023.08.13 Progress Update #2 Windows support and OOM handling.
- 2023.07.30 Progress Update #1 Internal logging architecture, improved HTTP UI.
- 2023.07.14 Progress Update #0 Exit nodes and Program Replays.
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