Each workflow has one or more than one step. Each step is either a channel (in_app, email, push, chat) or an action (digest, delay).

Within the workflow, every channel has a separate template. Email channel step content can be different than in_app channel step content. When a workflow is triggered, Novu generates separate messages for every channel step and sends that message to the recipient.

A triggered event (notification) is a collection of step information, its message, and job execution details.

​
List messages

Messages can be listed using these SDK methods. These methods support pagination using page and limit field and filters using channel, subscriberId and transactionId field.

Novu will throw 404 error if requested subscriberId is not a valid subscriberId of any existing subscriber.
import { Novu, ChannelTypeEnum } from '@novu/node';

const novu = new Novu('<NOVU_API_KEY>');

await novu.messages.list({
  page: 0,
  limit: 30,
  channel: ChannelTypeEnum.IN_APP,
  subscriberId: '<SUBSCRIBER_ID>'
  transactionIds: ['transactionId1', 'transactionId2'],
});

​
List messages example response

{
  "page": 0,
  "totalCount": 987,
  "hasMore": true,
  "pageSize": 30,
  "data": [
    ....
    {
      "cta": {
          "action": {
              "buttons": []
          },
          "type": "redirect",
          "data": {
              "url": ""
          }
      },
      "_id": "messageId",
      "_templateId": "workflowId",
      "_environmentId": "environmentId",
      "_messageTemplateId": "messageTemplateId",
      "_notificationId": "notificationId",
      "_organizationId": "organisationId",
      "_subscriberId": "_subscriberId",
      "_jobId": "jobId",
      "templateIdentifier": "workflowIdentifier",
      "_feedId": "feedId",
      "channel": "in_app",
      "content": "Message Content",
      "deviceTokens": [],
      "seen": false,
      "read": false,
      "status": "sent",
      "transactionId": "d5218a6c-4b08-4617-b176-2d2271f34e42",
      "payload": {
          "key": "value"
          "__source": "test-workflow"
      },
      "expireAt": "2024-06-17T08:18:29.871Z",
      "deleted": false,
      "createdAt": "2023-06-17T08:18:29.871Z",
      "updatedAt": "2023-06-17T08:24:34.888Z",
      "__v": 0,
      "subscriber": {
          "_id": "_subscriberId",
          "subscriberId": "subscriberId",
          "id": "_subscriberId"
      },
      "actorSubscriber": 'actorSubscriberId',
      "id": "messageId"
    }
    ....
  ]
}

​
Delete a message

A single message can be deleted by messageId using these SDK methods. messageId should be a valid objectId parsed as a string.

import { Novu } from '@novu/node';

const novu = new Novu('<NOVU_API_KEY>');

const messageId = '64452b58ec0dbb9e41b4dccf';

await novu.messages.deleteById(messageId);

​
Delete a message example response

{
  data: {
    acknowledged: true,
    status: 'deleted'
  }
};

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