> ## Documentation Index
> Fetch the complete documentation index at: https://www.courier.com/docs/llms.txt
> Use this file to discover all available pages before exploring further.

# Track an event

> Records an inbound event that can trigger a journey. Requires an event name, a messageId you generate, a type, and a properties object.



## OpenAPI

````yaml /openapi-specs/openapi.documented.yml post /inbound/courier
openapi: 3.0.1
info:
  title: Courier
  description: The Courier REST API for sending and managing notifications across channels.
  version: 0.0.1
servers:
  - url: https://api.courier.com
    description: Production
security: []
tags:
  - name: Send
    description: >-
      Send a message to one or more recipients — users, lists, audiences, or
      tenants — across every channel you have configured.
  - name: Templates
    description: >-
      Create, update, version, publish, and localize notification templates and
      their content.
  - name: Brands
    description: >-
      Manage the logos, colors, and layout that give the templates you send a
      consistent look.
  - name: Routing Strategies
    description: >-
      Define reusable channel routing and failover strategies, and see which
      templates use them.
  - name: Journeys
    description: >-
      Build, version, publish, invoke, and cancel multi-step notification
      workflows, along with the templates scoped to them.
  - name: Broadcasts
    description: >-
      Create a one-off send to a list or audience, author its content, then send
      it immediately or schedule it for later.
  - name: User Profiles
    description: >-
      Store the contact information Courier delivers to for each user — email,
      phone number, push tokens, and any custom data you send to.
  - name: Tenants
    description: >-
      Manage tenants — the organizations, teams, or accounts your users belong
      to — along with their users and default preferences.
  - name: Audiences
    description: >-
      Define filter-based groups whose membership Courier recalculates as user
      profiles change.
  - name: Lists
    description: >-
      Manage static groups of users that you subscribe explicitly, and send to
      them by list id or list pattern.
  - name: Providers
    description: >-
      Configure the channel providers Courier delivers through, and browse the
      provider types it supports.
  - name: Preference Topics
    description: >-
      Manage the workspace catalog of subscription topics, the sections that
      group them, and publishing the preference page.
  - name: User Preferences
    description: >-
      Read and write a single user's notification preferences, per topic and per
      channel.
  - name: Messages
    description: >-
      Look up the messages Courier has accepted, inspect their delivery history
      and rendered output, and cancel, resend, or archive them.
  - name: Device Tokens
    description: >-
      Register and manage the APNS and FCM device tokens Courier delivers push
      notifications to.
  - name: Tenant Memberships
    description: >-
      Associate a user with one or more tenants, and read or remove those
      associations.
  - name: Tenant Templates
    description: >-
      Manage the templates and template versions scoped to a single tenant,
      including the ones authored in the embedded designer.
  - name: Automations
    description: >-
      Invoke a stored automation template or an ad hoc automation defined in the
      request.
  - name: Digests
    description: >-
      Inspect what has accumulated in a digest schedule and release a digest
      ahead of its next scheduled delivery.
  - name: Translations
    description: >-
      Store and retrieve the translation strings Courier uses to render
      localized template content.
  - name: Inbox
    description: Manage the messages in a user's in-app inbox.
  - name: Track Events
    description: >-
      Record an inbound event that triggers the journeys and automations mapped
      to it.
  - name: Audit Events
    description: >-
      Read the audit trail of configuration and access changes in your
      workspace.
  - name: Authentication
    description: >-
      Issue scoped, short-lived JWTs so client-side SDKs — Inbox, Preferences,
      and the embedded designer — can call Courier as a single user. Server-side
      requests authenticate with your workspace API key instead.
paths:
  /inbound/courier:
    post:
      tags:
        - Track Events
      summary: Track an event
      description: >-
        Records an inbound event that can trigger a journey. Requires an event
        name, a messageId you generate, a type, and a properties object.
      operationId: inbound_track
      parameters: []
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/InboundTrackEvent'
            examples:
              Example1:
                value:
                  event: New Order Placed
                  messageId: 4c62c457-b329-4bea-9bfc-17bba86c393f
                  userId: '1234'
                  type: track
                  properties:
                    order_id: 123
                    total_orders: 5
                    last_order_id: 122
      responses:
        '202':
          description: ''
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/TrackAcceptedResponse'
              examples:
                Example1:
                  value:
                    messageId: 1-6952feeb-7fed6092da5363f2af38eb42
        '400':
          description: ''
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/BadRequest'
              examples:
                Example:
                  value:
                    message: Example message text
                    type: invalid_request_error
        '409':
          description: ''
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Conflict'
              examples:
                Example:
                  value:
                    message: Example message text
                    type: invalid_request_error
      security:
        - BearerAuth: []
      x-codeSamples:
        - lang: JavaScript
          source: |-
            import Courier from '@trycourier/courier';

            const client = new Courier({
              apiKey: process.env['COURIER_API_KEY'], // This is the default and can be omitted
            });

            const response = await client.inbound.trackEvent({
              event: 'New Order Placed',
              messageId: '4c62c457-b329-4bea-9bfc-17bba86c393f',
              properties: {
                order_id: 123,
                total_orders: 5,
                last_order_id: 122,
              },
              type: 'track',
              userId: '1234',
            });

            console.log(response.messageId);
        - lang: Python
          source: |-
            import os
            from courier import Courier

            client = Courier(
                api_key=os.environ.get("COURIER_API_KEY"),  # This is the default and can be omitted
            )
            response = client.inbound.track_event(
                event="New Order Placed",
                message_id="4c62c457-b329-4bea-9bfc-17bba86c393f",
                properties={
                    "order_id": 123,
                    "total_orders": 5,
                    "last_order_id": 122,
                },
                type="track",
                user_id="1234",
            )
            print(response.message_id)
        - lang: Go
          source: "package main\n\nimport (\n\t\"context\"\n\t\"fmt\"\n\n\t\"github.com/trycourier/courier-go\"\n\t\"github.com/trycourier/courier-go/option\"\n)\n\nfunc main() {\n\tclient := courier.NewClient(\n\t\toption.WithAPIKey(\"My API Key\"),\n\t)\n\tresponse, err := client.Inbound.TrackEvent(context.TODO(), courier.InboundTrackEventParams{\n\t\tEvent:     \"New Order Placed\",\n\t\tMessageID: \"4c62c457-b329-4bea-9bfc-17bba86c393f\",\n\t\tProperties: map[string]any{\n\t\t\t\"order_id\":      123,\n\t\t\t\"total_orders\":  5,\n\t\t\t\"last_order_id\": 122,\n\t\t},\n\t\tType:   courier.InboundTrackEventParamsTypeTrack,\n\t\tUserID: courier.String(\"1234\"),\n\t})\n\tif err != nil {\n\t\tpanic(err.Error())\n\t}\n\tfmt.Printf(\"%+v\\n\", response.MessageID)\n}\n"
        - lang: Java
          source: |-
            package com.courier.example;

            import com.courier.client.CourierClient;
            import com.courier.client.okhttp.CourierOkHttpClient;
            import com.courier.core.JsonValue;
            import com.courier.models.inbound.InboundTrackEventParams;
            import com.courier.models.inbound.InboundTrackEventResponse;

            public final class Main {
                private Main() {}

                public static void main(String[] args) {
                    CourierClient client = CourierOkHttpClient.fromEnv();

                    InboundTrackEventParams params = InboundTrackEventParams.builder()
                        .event("New Order Placed")
                        .messageId("4c62c457-b329-4bea-9bfc-17bba86c393f")
                        .properties(InboundTrackEventParams.Properties.builder()
                            .putAdditionalProperty("order_id", JsonValue.from("bar"))
                            .putAdditionalProperty("total_orders", JsonValue.from("bar"))
                            .putAdditionalProperty("last_order_id", JsonValue.from("bar"))
                            .build())
                        .type(InboundTrackEventParams.Type.TRACK)
                        .build();
                    InboundTrackEventResponse response = client.inbound().trackEvent(params);
                }
            }
        - lang: Ruby
          source: |-
            require "courier"

            courier = Courier::Client.new(api_key: "My API Key")

            response = courier.inbound.track_event(
              event: "New Order Placed",
              message_id: "4c62c457-b329-4bea-9bfc-17bba86c393f",
              properties: {order_id: "bar", total_orders: "bar", last_order_id: "bar"},
              type: :track
            )

            puts(response)
        - lang: PHP
          source: >-
            <?php


            require_once dirname(__DIR__) . '/vendor/autoload.php';


            use Courier\Client;

            use Courier\Core\Exceptions\APIException;


            $client = new Client(apiKey: getenv('COURIER_API_KEY') ?: 'My API
            Key');


            try {
              $response = $client->inbound->trackEvent(
                event: 'New Order Placed',
                messageID: '4c62c457-b329-4bea-9bfc-17bba86c393f',
                properties: [
                  'order_id' => 'bar', 'total_orders' => 'bar', 'last_order_id' => 'bar'
                ],
                type: 'track',
                userID: '1234',
              );

              var_dump($response);
            } catch (APIException $e) {
              echo $e->getMessage();
            }
        - lang: C#
          source: |-
            using System;
            using System.Collections.Generic;
            using System.Text.Json;
            using TryCourier;
            using Inbound = TryCourier.Models.Inbound;

            CourierClient client = new();

            Inbound::InboundTrackEventParams parameters = new()
            {
                Event = "New Order Placed",
                MessageID = "4c62c457-b329-4bea-9bfc-17bba86c393f",
                Properties = new Dictionary<string, JsonElement>()
                {
                    { "order_id", JsonSerializer.SerializeToElement("bar") },
                    { "total_orders", JsonSerializer.SerializeToElement("bar") },
                    { "last_order_id", JsonSerializer.SerializeToElement("bar") },
                },
                Type = Inbound::Type.Track,
            };

            var response = await client.Inbound.TrackEvent(parameters);

            Console.WriteLine(response);
        - lang: CLI
          source: |-
            courier inbound track-event \
              --api-key 'My API Key' \
              --event 'New Order Placed' \
              --message-id 4c62c457-b329-4bea-9bfc-17bba86c393f \
              --properties '{order_id: bar, total_orders: bar, last_order_id: bar}' \
              --type track
components:
  schemas:
    InboundTrackEvent:
      title: InboundTrackEvent
      type: object
      properties:
        event:
          type: string
          description: >-
            A descriptive name of the event. This name will appear as a trigger
            in the Courier Automation Trigger node.
          example: New Order Placed
        messageId:
          type: string
          description: >-
            A required unique identifier that will be used to de-duplicate
            requests. If not unique, will respond with 409 Conflict status
          example: 4c62c457-b329-4bea-9bfc-17bba86c393f
        properties:
          type: object
          additionalProperties: true
        type:
          type: string
          enum:
            - track
        userId:
          type: string
          nullable: true
          description: The user id associated with the track
      required:
        - event
        - messageId
        - properties
        - type
    TrackAcceptedResponse:
      title: TrackAcceptedResponse
      type: object
      properties:
        messageId:
          type: string
          description: >-
            A successful call returns a `202` status code along with a
            `requestId` in the response body.
          example: 1-65f240a0-47a6a120c8374de9bcf9f22c
      required:
        - messageId
    BadRequest:
      title: BadRequest
      type: object
      properties:
        type:
          type: string
          enum:
            - invalid_request_error
      required:
        - type
      allOf:
        - $ref: '#/components/schemas/BaseError'
    Conflict:
      title: Conflict
      type: object
      properties:
        type:
          type: string
          enum:
            - invalid_request_error
      required:
        - type
      allOf:
        - $ref: '#/components/schemas/BaseError'
    BaseError:
      title: BaseError
      type: object
      properties:
        message:
          type: string
          description: A message describing the error that occurred.
      required:
        - message
  securitySchemes:
    BearerAuth:
      type: http
      scheme: bearer

````