Publish your first event

Create a local Arc workspace, declare an event schema, and receive a typed event in a worker.

Arc Runtime 3.xUpdated Jul 18, 2026

Create a workspace

Initialize
Create a workspace and accept the local-only defaults.
shell
```
arcctl init northline-orders
cd northline-orders
```
Start
Run Arc Runtime in the foreground so delivery logs remain visible.
shell
```
arcctl dev
```
Inspect
Confirm that the runtime and local stream are healthy.
shell
```
arcctl status
```

Declare an event

src/events.ts

import { event } from "@arcwell/atlas";

export const orderAccepted = event("order.accepted", {
  orderId: "string",
  region: "string",
});

Publish and receive

src/index.ts

import { arc } from "@arcwell/atlas";
import { orderAccepted } from "./events";

await arc.publish(orderAccepted, {
  orderId: "ord_7K2M",
  region: "north",
});

Arc validates the payload before appending it to the local stream. Invalid payloads fail at the producer and never enter delivery.

On this page

Create a workspace
Declare an event
Publish and receive

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Getting started

Publish your first event

Create a local Arc workspace, declare an event schema, and receive a typed event in a worker.

Arc Runtime 3.xUpdated Jul 18, 2026

Create a workspace

Initialize
Create a workspace and accept the local-only defaults.
shell
```
arcctl init northline-orders
cd northline-orders
```
Start
Run Arc Runtime in the foreground so delivery logs remain visible.
shell
```
arcctl dev
```
Inspect
Confirm that the runtime and local stream are healthy.
shell
```
arcctl status
```

Declare an event

src/events.ts

import { event } from "@arcwell/atlas";

export const orderAccepted = event("order.accepted", {
  orderId: "string",
  region: "string",
});

Publish and receive

src/index.ts

import { arc } from "@arcwell/atlas";
import { orderAccepted } from "./events";

await arc.publish(orderAccepted, {
  orderId: "ord_7K2M",
  region: "north",
});

Arc validates the payload before appending it to the local stream. Invalid payloads fail at the producer and never enter delivery.

Create a workspace

Initialize

Start

Inspect

Declare an event

Publish and receive

Preparing the page.

Create a workspace

Initialize

Start

Inspect

Declare an event

Publish and receive