# Publish Endpoint Message — QStash

> Publish a message a callback endpoint

- Key: `qstash-publish-endpoint-message`
- Type: Action (Write)
- Version: 0.0.2
- App: QStash (`qstash`) — https://pipedream.com/apps/qstash.md
- This page (HTML): https://pipedream.com/apps/qstash/actions/publish-endpoint-message
- Hints: open-world
- Source: https://github.com/PipedreamHQ/pipedream/blob/master/components/qstash/actions/publish-endpoint-message/publish-endpoint-message.mjs

## Props

| Prop | Type | Required | Description |
|---|---|---|---|
| `endpoint` | `string` | Yes | The endpoint that will be receiving these events |
| `body` | `object` | Yes | The body is forwarded to your endpoints in the HTTP request |
| `retries` | `integer` | No | How often should this messasge be retried in case the destination API is not available. |
| `deduplicationId` | `string` | No | Provide an ID that will be used to detect duplicate messages. If a duplicate message is detected, the request will be accepted but not enqueued. Learn more. |
| `contentBasedDeduplicationEnabled` | `boolean` | No | If true, the message content will get hashed and used as deduplication ID. If a duplicate message is detected, the request will be accepted but not enqueued. |
| `delay` | `string` | No | Format for this header is a number followed by duration abbreviation, like 10s. Available durations are s (seconds), m (minutes), h (hours), d (days). |
| `cron` | `string` | No | You can use a tool like Crontab.guru to generate cron expressions. |

## Run it

**MCP**

```ts
import { Client } from "@modelcontextprotocol/sdk/client/index.js"
import { StreamableHTTPClientTransport } from "@modelcontextprotocol/sdk/client/streamableHttp.js"
import { PipedreamClient } from "@pipedream/sdk"

const pd = new PipedreamClient({
  projectId: process.env.PIPEDREAM_PROJECT_ID!,
  clientId: process.env.PIPEDREAM_CLIENT_ID!,
  clientSecret: process.env.PIPEDREAM_CLIENT_SECRET!,
  projectEnvironment: "production",
})

const accessToken = await pd.rawAccessToken

const transport = new StreamableHTTPClientTransport(
  new URL("https://remote.mcp.pipedream.net/v3"),
  {
    requestInit: {
      headers: {
        Authorization: `Bearer ${accessToken}`,
        "x-pd-project-id": process.env.PIPEDREAM_PROJECT_ID!,
        "x-pd-environment": "production",
        "x-pd-external-user-id": "{external_user_id}", // any stable ID for this user in your system
        "x-pd-app-slug": "qstash",
      },
    },
  },
)

const mcp = new Client({ name: "my-agent", version: "1.0.0" })
await mcp.connect(transport)

const { tools } = await mcp.listTools()

// listTools() hands your model this tool's input schema, so it can
// fill the arguments itself:
const result = await mcp.callTool({
  name: "qstash-publish-endpoint-message",
  arguments: {
    endpoint: "Callback Endpoint",
    body: "Body",
  },
})
```

**TypeScript**

```ts
import { PipedreamClient } from "@pipedream/sdk"

const pd = new PipedreamClient({
  projectId: process.env.PIPEDREAM_PROJECT_ID!,
  clientId: process.env.PIPEDREAM_CLIENT_ID!,
  clientSecret: process.env.PIPEDREAM_CLIENT_SECRET!,
  projectEnvironment: "production",
})

const result = await pd.actions.run({
  id: "qstash-publish-endpoint-message",
  externalUserId: "{external_user_id}", // any stable ID for this user in your system
  configuredProps: {
    qstash: { authProvisionId: "apn_xxxxxxx" },
    endpoint: "Callback Endpoint",
    body: "Body",
  },
})

console.log(result)
```

**cURL**

```bash
curl -X POST https://api.pipedream.com/v1/connect/{project_id}/actions/run \
  -H "Content-Type: application/json" \
  -H "X-PD-Environment: production" \
  -H "Authorization: Bearer {access_token}" \
  -d '{
    "external_user_id": "{external_user_id}",
    "id": "qstash-publish-endpoint-message",
    "configured_props": {
      "qstash": { "authProvisionId": "apn_xxxxxxx" },
      "endpoint": "Callback Endpoint",
      "body": "Body"
    }
  }'
```

---

- App: https://pipedream.com/apps/qstash.md · All apps: https://pipedream.com/apps