docs: add events system pages (#4294)

* feat: events docs

* fix: make the conditions optional in casl check

* Update backend/src/lib/api-docs/constants.ts

* Update backend/src/lib/api-docs/constants.ts

Co-authored-by: greptile-apps[bot] <165735046+greptile-apps[bot]@users.noreply.github.com>

* Update docs/docs.json

* docs: content

* fix: pr changes

* feat: improve docs

* chore: remove recursive

* fix: pr changes

* fix: change

* fix: pr changes

* fix: pr changes

* fix: change

backend/src/ee/services/event/event-sse-service.ts

@@ -13,11 +13,9 @@ const AUTH_REFRESH_INTERVAL = 60 * 1000;
 const HEART_BEAT_INTERVAL = 15 * 1000;
 
 export const sseServiceFactory = (bus: TEventBusService, redis: Redis) => {
-  let heartbeatInterval: NodeJS.Timeout | null = null;
-
   const clients = new Set<EventStreamClient>();
 
-  heartbeatInterval = setInterval(() => {
+  const heartbeatInterval = setInterval(() => {
     for (const client of clients) {
       if (client.stream.closed) continue;
       void client.ping();

backend/src/ee/services/event/event-sse-stream.ts

@@ -66,15 +66,24 @@ export type EventStreamClient = {
 };
 
 export function createEventStreamClient(redis: Redis, options: IEventStreamClientOpts): EventStreamClient {
-  const rules = options.registered.map((r) => ({
-    subject: options.type,
-    action: "subscribe",
-    conditions: {
-      eventType: r.event,
-      secretPath: r.conditions?.secretPath ?? "/",
-      environment: r.conditions?.environmentSlug
-    }
-  }));
+  const rules = options.registered.map((r) => {
+    const secretPath = r.conditions?.secretPath;
+    const hasConditions = r.conditions?.environmentSlug || r.conditions?.secretPath;
+
+    return {
+      subject: options.type,
+      action: "subscribe",
+      conditions: {
+        eventType: r.event,
+        ...(hasConditions
+          ? {
+              environment: r.conditions?.environmentSlug ?? "",
+              secretPath: { $glob: secretPath }
+            }
+          : {})
+      }
+    };
+  });
 
   const id = `sse-${nanoid()}`;
   const control = new AbortController();

backend/src/lib/api-docs/constants.ts

@@ -70,7 +70,8 @@ export enum ApiDocsTags {
   SecretScanning = "Secret Scanning",
   OidcSso = "OIDC SSO",
   SamlSso = "SAML SSO",
-  LdapSso = "LDAP SSO"
+  LdapSso = "LDAP SSO",
+  Events = "Event Subscriptions"
 }
 
 export const GROUPS = {
@@ -2872,3 +2873,10 @@ export const LdapSso = {
     caCert: "The CA certificate to use when verifying the LDAP server certificate."
   }
 };
+
+export const EventSubscriptions = {
+  SUBSCRIBE_PROJECT_EVENTS: {
+    projectId: "The ID of the project to subscribe to events for.",
+    register: "List of events you want to subscribe to"
+  }
+};

backend/src/server/routes/v1/event-router.ts

@@ -7,6 +7,7 @@ import { ActionProjectType, ProjectType } from "@app/db/schemas";
 import { getServerSentEventsHeaders } from "@app/ee/services/event/event-sse-stream";
 import { EventRegisterSchema } from "@app/ee/services/event/types";
 import { ProjectPermissionSecretActions, ProjectPermissionSub } from "@app/ee/services/permission/project-permission";
+import { ApiDocsTags, EventSubscriptions } from "@app/lib/api-docs";
 import { BadRequestError, ForbiddenRequestError, RateLimitError } from "@app/lib/errors";
 import { readLimit } from "@app/server/config/rateLimiter";
 import { verifyAuth } from "@app/server/plugins/auth/verify-auth";
@@ -20,10 +21,14 @@ export const registerEventRouter = async (server: FastifyZodProvider) => {
       rateLimit: readLimit
     },
     schema: {
+      hide: false,
+      tags: [ApiDocsTags.Events],
+      description: "Subscribe to project events",
       body: z.object({
-        projectId: z.string().trim(),
-        register: z.array(EventRegisterSchema).max(10)
-      })
+        projectId: z.string().trim().describe(EventSubscriptions.SUBSCRIBE_PROJECT_EVENTS.projectId),
+        register: z.array(EventRegisterSchema).min(1).max(10)
+      }),
+      produces: ["text/event-stream"]
     },
     onRequest: verifyAuth([AuthMode.JWT, AuthMode.IDENTITY_ACCESS_TOKEN]),
     handler: async (req, reply) => {
@@ -75,13 +80,15 @@ export const registerEventRouter = async (server: FastifyZodProvider) => {
             }
 
             req.body.register.forEach((r) => {
+              const fields = {
+                environment: r.conditions?.environmentSlug ?? "",
+                secretPath: r.conditions?.secretPath ?? "/",
+                eventType: r.event
+              };
+
               const allowed = info.permission.can(
                 ProjectPermissionSecretActions.Subscribe,
-                subject(ProjectPermissionSub.Secrets, {
-                  environment: r.conditions?.environmentSlug ?? "",
-                  secretPath: r.conditions?.secretPath ?? "/",
-                  eventType: r.event
-                })
+                subject(ProjectPermissionSub.Secrets, fields)
               );
 
               if (!allowed) {
@@ -89,9 +96,9 @@ export const registerEventRouter = async (server: FastifyZodProvider) => {
                   name: "PermissionDenied",
                   message: `You are not allowed to subscribe on secrets`,
                   details: {
-                    event: r.event,
-                    environmentSlug: r.conditions?.environmentSlug,
-                    secretPath: r.conditions?.secretPath ?? "/"
+                    event: fields.eventType,
+                    environmentSlug: fields.environment,
+                    secretPath: fields.secretPath
                   }
                 });
               }

docs/api-reference/endpoints/events/project-events.mdx

@@ -0,0 +1,4 @@
+---
+title: "Project Events"
+openapi: "POST /api/v1/events/subscribe/project-events"
+---

docs/docs.json

@@ -41,6 +41,8 @@
             "group": "Platform Reference",
             "pages": [
               "documentation/platform/organization",
+              "documentation/platform/event-subscriptions",
+              "documentation/platform/folder",
               {
                 "group": "Projects",
                 "pages": [
@@ -764,6 +766,10 @@
                 "group": "Admin",
                 "pages": ["api-reference/endpoints/admin/bootstrap-instance"]
               },
+              {
+                "group": "Events",
+                "pages": ["api-reference/endpoints/events/project-events"]
+              },
               {
                 "group": "Identities",
                 "pages": [

docs/documentation/platform/event-subscriptions.mdx

@@ -0,0 +1,118 @@
+---
+title: "Event Subscriptions"
+sidebarTitle: "Events"
+description: "Subscribe to events in Infisical for real-time updates"
+---
+
+<Info>
+  **Note:** Event Subscriptions is a paid feature. - **Infisical Cloud users:** Event Subscriptions is available under
+  the **Enterprise Tier**. - **Self-Hosted Infisical:** Please contact [sales@infisical.com](mailto:sales@infisical.com)
+  to purchase an enterprise license.
+</Info>
+
+Event Subscriptions in Infisical allow you to receive real-time notifications when specific actions occur within your account or organization. These notifications include changes to secrets, users, teams, and many more **coming soon**.
+
+## How It Works
+
+- Server receives message over pubsub connection indicating changes have occurred
+- Server processes the change notification
+- Updated data is synchronized across all connected Infisical instances
+- Client applications receive real-time updates through [Server-Sent Events (SSE)](https://developer.mozilla.org/en-US/docs/Web/API/Server-sent_events)
+- All servers maintain consistent state without manual intervention
+
+This ensures your infrastructure stays up-to-date automatically, without requiring restarts or manual synchronization.
+
+<Note>
+  Event Subscriptions are designed for real-time communication and do not include persistence or replay
+  capabilities—events are delivered once and are not stored for future retrieval.
+</Note>
+
+## Supported Resources
+
+You can currently subscribe to notifications for the following resources and event types:
+
+- **Secrets**
+  - `secret:created`: Triggered when a secret is created
+  - `secret:updated`: Triggered when a secret is updated
+  - `secret:deleted`: Triggered when a secret is deleted
+
+## Permissions Setup
+
+To receive events on a supported resource, the identity must have `Subscribe` action permission on that resource.
+
+Follow these steps to set up the necessary permissions:
+
+<Steps>
+ <Step title="Select a project and copy the Project ID">
+   ![Select Project](/images/platform/events/select-project.png)
+
+On your project page, open **Project Settings** from the sidebar.
+
+In the Project name section, click **Copy Project ID** to copy your Project ID, or extract it from the URL:
+`https://app.infisical.com/project/<your_project_id>/settings`
+
+ </Step>
+
+<Step title="Navigate to Access Management and open Project Roles">
+  ![Project Detail](/images/platform/events/project-detail.png) ![Project
+  Access](/images/platform/events/project-access.png) Navigate to **Access Management**, then select **Project Roles**.
+</Step>
+
+<Step title="Select an existing role or create a new one">
+  ![Project Role](/images/platform/events/project-role.png) You can either edit an existing role or create a new role
+  for event subscriptions.
+</Step>
+
+<Step title="Assign policies to the role">
+  ![Role Detail](/images/platform/events/role-detail.png) Select the specific resources that the role should have access
+  to. ![Add policy](/images/platform/events/add-policy.png)
+</Step>
+
+ <Step title="Enable the Subscribe action in permissions">
+   ![Policy setting](/images/platform/events/policy-setting.png)
+
+    Ensure the **Subscribe** action is selected for the relevant resources and events.
+
+    ## Conditions
+
+    By default, the role will have access to all events for the selected resources in this project.
+
+   <AccordionGroup>
+     <Accordion title="Full Access">
+       ![Policy setting](/images/platform/events/access-full.png)
+     </Accordion>
+     <Accordion title="Path Prefix">
+       ![Policy setting](/images/platform/events/access-path.png)
+     </Accordion>
+    <Accordion title="Environment">
+      ![Policy setting](/images/platform/events/access-dev.png)
+    </Accordion>
+   </AccordionGroup>
+ </Step>
+</Steps>
+
+## Getting Started
+
+Currently, events are only available via [API](/api-reference/endpoints/events) but will soon be available in our SDKs, Kubernetes Operator, and more.
+
+### API Usage
+
+You need an auth token to use this API. To get an authentication token, follow the authentication guide for one of our supported auth methods from the [machine identities documentation](/documentation/platform/identities/machine-identities#authentication-methods).
+
+#### Creating a Subscription
+
+![Postman Subscription](/images/platform/events/postman-subscribe.png)
+
+**Request Parameters:**
+
+- `projectId`: Project whose events you want to subscribe to
+- `register`: List of event filters
+  - `conditions`: Conditions to filter events on
+    - `environmentSlug`: Project environment
+    - `secretPath`: Path of the secrets
+
+![Postman Subscription Response](/images/platform/events/postman-sse-response.png)
+
+The subscribe endpoint responds with a `text/event-stream` content type to initiate SSE streaming.
+
+For more specific details, please refer to our [API Reference](/api-reference/endpoints/events).