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description Detailed technical documentation on using RudderStack’s Node.js SDK to send events to various destinations

Node.js

RudderStack’s Node.js SDK allows you to track your customer event data from your Node.js code. Once enabled, the event requests hit the RudderStack servers. RudderStack then routes the events to the specified destination platforms as configured by you.

You can find this SDK in our GitHub repository.

Installing the RudderStack Node.js SDK

To install the RudderStack Node.js SDK using npm, run the following command:

npm install @rudderstack/rudder-sdk-node

Using the RudderStack Node.js SDK

To use the SDK, run the following code snippet:

const Analytics = require("@rudderstack/rudder-sdk-node");

// we need the batch endpoint of the Rudder server you are running
const client = new Analytics(WRITE_KEY, DATA_PLANE_URL/v1/batch);

Identify

The identify call lets you associate a user to their actions as well as captures the relevant traits or properties related to that user.

{% hint style="info" %} For a detailed explanation of the identify call, please refer to our RudderStack API specification guide. {% endhint %}

An example identify call is as shown:

client.identify({
  userId: '123456',
  traits: {
    name: 'Name Username',
    email: 'name@website.com',
    plan: 'Free',
    friends: 21
  }
});

The identify method parameters are as described below:

Field Type Presence Description
anonymousId String Optional Sets the user ID for cases where there is no unique identifier for the user. Either userId or anonymousId is required.
userId String Optional, if anonymousId is already set Unique identifier for a particular user in your database.
context Object Optional Dictionary of information that provides context about a message. However, it is not directly related to the API call.
integrations Object Optional A dictionary containing the destinations to be either enabled or disabled.
timestamp Date Optional The timestamp of the message's arrival.
traits Object Optional Dictionary of the traits associated with the user, such as nameor email

Track

The track call lets you record the users' actions along with their associated properties. Each triggered action is called an 'event'.

{% hint style="info" %} For a detailed explanation of the track call, please refer to our RudderStack API specification guide. {% endhint %}

An example track call is as shown:

client.track({
  userId: '123456',
  event: 'Item Viewed',
  properties: {
    revenue: 19.95,
    shippingMethod: 'Premium'
  }
});

The track method parameters are as described below:

Name Type Presence Description
user_id String Required The developer identification for your user
event String Required Name of the event being performed by the user
properties Object Optional Dictionary of the properties associated with a particular event.
context Object Optional Dictionary of information that provides context about a message. However, it is not directly related to the API call.
timestamp Date Optional The timestamp of the message's arrival.
anonymous_id String Optional Sets the user ID for cases where there is no unique identifier for the user. Either userId or anonymousId is required.
integrations Object Optional A dictionary containing the destinations to be either enabled or disabled.

Page

The page call allows you to record the page views on your website. It also records the other relevant information about the page that is being viewed.

{% hint style="info" %} For a detailed explanation of the page call, please refer to our RudderStack API specification guide. {% endhint %}

An example page call is as shown:

client.page({
  userId: '12345',
  category: 'Food',
  name: 'Pizza',
  properties: {
    url: 'https://dominos.com',
    title: 'Pizza',
    referrer: 'https://google.com'
  }
});

The page method parameters are as described below:

Field Type Presence Description
anonymousId String Optional Sets the user ID for cases where there is no unique identifier for the user. Either userId or anonymousId is required.
userId String Optional, if anonymousId is already set Unique identifier for a particular user in your database.
context Object Optional Dictionary of information that provides context about a message. However, it is not directly related to the API call.
integrations Object Optional A dictionary containing the destinations to be either enabled or disabled.
name String Required Name of the page being viewed.
properties Object Optional Dictionary of the properties associated with the page being viewed, such as url and referrer
timestamp Date Optional The timestamp of the message's arrival.

Group

The group call allows you to associate an identified user to a group - either a company, project, or a team. You can also record custom traits or properties associated with that group.

{% hint style="info" %} For a detailed explanation of the group call, please refer to our RudderStack API specification guide. {% endhint %}

An example group call is as shown:

client.group({
  userId: '12345',
  groupId: '1',
  traits: {
    name: 'Company',
    description: 'Google'
  }
});

The group method parameters are as follows:

Field Type Presence Description
anonymousId String Optional Sets the user ID for cases where there is no unique identifier for the user. Either userId or anonymousId is required.
userId String Optional, if anonymousId is already set Unique identifier for a particular user in your database.
context Object Optional Dictionary of information that provides context about a message. However, it is not directly related to the API call.
integrations Object Optional A dictionary containing the destinations to be either enabled or disabled.
groupId String Required Unique identifier of the group, as present in your database.
traits Object Optional Dictionary of the properties or traits associated with the group, such as email or name.
timestamp Date Optional The timestamp of the message's arrival.

Alias

The alias call allows you to associate one identity with another.

{% hint style="info" %} alias is an advanced method. However, it is required when managing user identities in some destinations. {% endhint %}

An example alias call is as shown:

client.alias({
  previousId: 'old_id',
  userId: 'new_id'
});

The alias method parameters are as mentioned below:

Field Type Presence Description
userId String Optional, if anonymousId is already set Unique identifier for a particular user in your database.
context Object Optional Dictionary of information that provides context about a message. However, it is not directly related to the API call.
integrations Object Optional A dictionary containing the destinations to be either enabled or disabled.
previousId String Required The previous unique identifier of the user.
traits Object Optional Dictionary of the properties or traits associated with the group, such as email or name.
timestamp Date Optional The timestamp of the message's arrival.

{% hint style="info" %} For a detailed explanation of the alias call, please refer to our RudderStack API specification guide. {% endhint %}

Contact Us

To know more about the RudderStack Node.js SDK, you can contact us. You can also start a conversation on our Slack channel; we will be happy to talk to you!