feat(node): Add ability to send cron monitor check ins

packages/node/src/checkin.ts

@@ -1,11 +1,18 @@
-import type { CheckIn, CheckInEvelope, CheckInItem, DsnComponents, SdkMetadata } from '@sentry/types';
+import type {
+  CheckIn,
+  CheckInEvelope,
+  CheckInItem,
+  DsnComponents,
+  SdkMetadata,
+  SerializedCheckIn,
+} from '@sentry/types';
 import { createEnvelope, dsnToString } from '@sentry/utils';
 
 /**
  * Create envelope from check in item.
  */
 export function createCheckInEnvelope(
-  checkIn: CheckIn,
+  checkIn: SerializedCheckIn,
   metadata?: SdkMetadata,
   tunnel?: string,
   dsn?: DsnComponents,
@@ -25,7 +32,7 @@ export function createCheckInEnvelope(
   return createEnvelope<CheckInEvelope>(headers, [item]);
 }
 
-function createCheckInEnvelopeItem(checkIn: CheckIn): CheckInItem {
+function createCheckInEnvelopeItem(checkIn: SerializedCheckIn): CheckInItem {
   const checkInHeaders: CheckInItem[0] = {
     type: 'check_in',
   };

packages/node/src/client.ts

@@ -1,10 +1,19 @@
 import type { Scope } from '@sentry/core';
 import { addTracingExtensions, BaseClient, SDK_VERSION, SessionFlusher } from '@sentry/core';
-import type { Event, EventHint, Severity, SeverityLevel } from '@sentry/types';
-import { logger, resolvedSyncPromise } from '@sentry/utils';
+import type {
+  CheckIn,
+  Event,
+  EventHint,
+  MonitorConfig,
+  SerializedCheckIn,
+  Severity,
+  SeverityLevel,
+} from '@sentry/types';
+import { dropUndefinedKeys, logger, resolvedSyncPromise, uuid4 } from '@sentry/utils';
 import * as os from 'os';
 import { TextEncoder } from 'util';
 
+import { createCheckInEnvelope } from './checkin';
 import { eventFromMessage, eventFromUnknownInput } from './eventbuilder';
 import type { NodeClientOptions } from './types';
 
@@ -138,6 +147,46 @@ export class NodeClient extends BaseClient<NodeClientOptions> {
     );
   }
 
+  /**
+   * Create a cron monitor check in and send it to Sentry.
+   *
+   * @param checkIn An object that describes a check in.
+   * @param upsertMonitorConfig An optional object that describes a monitor config. Use this if you want
+   * to create a monitor automatically when sending a check in.
+   */
+  public captureCheckIn(checkIn: CheckIn, monitorConfig?: MonitorConfig): void {
+    if (!this._isEnabled()) {
+      __DEBUG_BUILD__ && logger.warn('SDK not enabled, will not capture checkin.');
+      return;
+    }
+
+    const options = this.getOptions();
+    const { release, environment, tunnel } = options;
+
+    const serializedCheckIn: SerializedCheckIn = dropUndefinedKeys({
+      check_in_id: uuid4(),
+      monitor_slug: checkIn.monitorSlug,
+      status: checkIn.status,
+      duration: checkIn.duration,
+      release,
+      environment,
+    });
+
+    if (monitorConfig) {
+      serializedCheckIn.monitor_config = dropUndefinedKeys({
+        schedule: monitorConfig.schedule,
+        checkin_margin: monitorConfig.checkinMargin,
+        max_runtime: monitorConfig.maxRuntime,
+        timezone: monitorConfig.timezone,
+      });
+    }
+
+    const envelope = createCheckInEnvelope(serializedCheckIn, this.getSdkMetadata(), tunnel, this.getDsn());
+
+    __DEBUG_BUILD__ && logger.warn('Sending checkin: ', checkIn);
+    void this._sendEnvelope(envelope);
+  }
+
   /**
    * @inheritDoc
    */

packages/node/src/index.ts

@@ -56,7 +56,16 @@ export { autoDiscoverNodePerformanceMonitoringIntegrations } from './tracing';
 
 export { NodeClient } from './client';
 export { makeNodeTransport } from './transports';
-export { defaultIntegrations, init, defaultStackParser, lastEventId, flush, close, getSentryRelease } from './sdk';
+export {
+  defaultIntegrations,
+  init,
+  defaultStackParser,
+  lastEventId,
+  flush,
+  close,
+  getSentryRelease,
+  captureCheckIn,
+} from './sdk';
 export { addRequestDataToEvent, DEFAULT_USER_INCLUDES, extractRequestData } from './requestdata';
 export { deepReadDirSync } from './utils';
 

packages/node/src/sdk.ts

@@ -6,7 +6,7 @@ import {
   initAndBind,
   Integrations as CoreIntegrations,
 } from '@sentry/core';
-import type { SessionStatus, StackParser } from '@sentry/types';
+import type { CheckIn, MonitorConfig, SessionStatus, StackParser } from '@sentry/types';
 import {
   createStackParser,
   GLOBAL_OBJ,
@@ -262,6 +262,25 @@ export function getSentryRelease(fallback?: string): string | undefined {
   );
 }
 
+/**
+ * Create a cron monitor check in and send it to Sentry.
+ *
+ * @param checkIn An object that describes a check in.
+ * @param upsertMonitorConfig An optional object that describes a monitor config. Use this if you want
+ * to create a monitor automatically when sending a check in.
+ */
+export function captureCheckIn(
+  checkIn: CheckIn,
+  upsertMonitorConfig?: MonitorConfig,
+): ReturnType<NodeClient['captureCheckIn']> {
+  const client = getCurrentHub().getClient<NodeClient>();
+  if (client) {
+    return client.captureCheckIn(checkIn, upsertMonitorConfig);
+  }
+
+  __DEBUG_BUILD__ && logger.warn('Cannot capture check in. No client defined.');
+}
+
 /** Node.js stack parser */
 export const defaultStackParser: StackParser = createStackParser(nodeStackLineParser(getModule));
 

packages/node/test/checkin.test.ts

@@ -1,4 +1,4 @@
-import type { CheckIn } from '@sentry/types';
+import type { SerializedCheckIn } from '@sentry/types';
 
 import { createCheckInEnvelope } from '../src/checkin';
 
@@ -44,7 +44,7 @@ describe('CheckIn', () => {
         duration: 10.0,
         release: '1.0.0',
         environment: 'production',
-      } as CheckIn,
+      } as SerializedCheckIn,
       {
         check_in_id: '83a7c03ed0a04e1b97e2e3b18d38f244',
         monitor_slug: 'b7645b8e-b47d-4398-be9a-d16b0dac31cb',
@@ -69,7 +69,7 @@ describe('CheckIn', () => {
           max_runtime: 30,
           timezone: 'America/Los_Angeles',
         },
-      } as CheckIn,
+      } as SerializedCheckIn,
       {
         check_in_id: '83a7c03ed0a04e1b97e2e3b18d38f244',
         monitor_slug: 'b7645b8e-b47d-4398-be9a-d16b0dac31cb',
@@ -98,7 +98,7 @@ describe('CheckIn', () => {
             unit: 'minute',
           },
         },
-      } as CheckIn,
+      } as SerializedCheckIn,
       {
         check_in_id: '83a7c03ed0a04e1b97e2e3b18d38f244',
         monitor_slug: 'b7645b8e-b47d-4398-be9a-d16b0dac31cb',

packages/node/test/client.test.ts

@@ -280,6 +280,66 @@ describe('NodeClient', () => {
       expect(event.server_name).not.toEqual('bar');
     });
   });
+
+  describe('captureCheckIn', () => {
+    it('sends a checkIn envelope', () => {
+      const options = getDefaultNodeClientOptions({ dsn: PUBLIC_DSN, serverName: 'bar' });
+      client = new NodeClient(options);
+
+      // @ts-ignore accessing private method
+      const sendEnvelopeSpy = jest.spyOn(client, '_sendEnvelope');
+
+      client.captureCheckIn(
+        { monitorSlug: 'foo', status: 'ok', duration: 1222 },
+        {
+          schedule: {
+            type: 'crontab',
+            value: '0 * * * *',
+          },
+          checkinMargin: 2,
+          maxRuntime: 12333,
+          timezone: 'Canada/Eastern',
+        },
+      );
+
+      expect(sendEnvelopeSpy).toHaveBeenCalledTimes(1);
+      expect(sendEnvelopeSpy).toHaveBeenCalledWith([
+        expect.any(Object),
+        [
+          [
+            expect.any(Object),
+            {
+              check_in_id: expect.any(String),
+              duration: 1222,
+              monitor_slug: 'foo',
+              status: 'ok',
+              monitor_config: {
+                schedule: {
+                  type: 'crontab',
+                  value: '0 * * * *',
+                },
+                checkin_margin: 2,
+                max_runtime: 12333,
+                timezone: 'Canada/Eastern',
+              },
+            },
+          ],
+        ],
+      ]);
+    });
+
+    it('does not send a checkIn envelope if disabled', () => {
+      const options = getDefaultNodeClientOptions({ dsn: PUBLIC_DSN, serverName: 'bar', enabled: false });
+      client = new NodeClient(options);
+
+      // @ts-ignore accessing private method
+      const sendEnvelopeSpy = jest.spyOn(client, '_sendEnvelope');
+
+      client.captureCheckIn({ monitorSlug: 'foo', status: 'ok', duration: 1222 });
+
+      expect(sendEnvelopeSpy).toHaveBeenCalledTimes(0);
+    });
+  });
 });
 
 describe('flush/close', () => {

packages/types/src/checkin.ts

@@ -13,7 +13,7 @@ interface IntervalSchedule {
 type MonitorSchedule = CrontabSchedule | IntervalSchedule;
 
 // https://develop.sentry.dev/sdk/check-ins/
-export interface CheckIn {
+export interface SerializedCheckIn {
   // Check-In ID (unique and client generated).
   check_in_id: string;
   // The distinct slug of the monitor.
@@ -37,3 +37,27 @@ export interface CheckIn {
     timezone?: string;
   };
 }
+
+export interface CheckIn {
+  // The distinct slug of the monitor.
+  monitorSlug: SerializedCheckIn['monitor_slug'];
+  // The status of the check-in.
+  status: SerializedCheckIn['status'];
+  // The duration of the check-in in seconds. Will only take effect if the status is ok or error.
+  duration?: SerializedCheckIn['duration'];
+}
+
+type SerializedMonitorConfig = NonNullable<SerializedCheckIn['monitor_config']>;
+
+export interface MonitorConfig {
+  schedule: MonitorSchedule;
+  // The allowed allowed margin of minutes after the expected check-in time that
+  // the monitor will not be considered missed for.
+  checkinMargin?: SerializedMonitorConfig['checkin_margin'];
+  // The allowed allowed duration in minutes that the monitor may be `in_progress`
+  // for before being considered failed due to timeout.
+  maxRuntime?: SerializedMonitorConfig['max_runtime'];
+  // A tz database string representing the timezone which the monitor's execution schedule is in.
+  // See: https://en.wikipedia.org/wiki/List_of_tz_database_time_zones
+  timezone?: SerializedMonitorConfig['timezone'];
+}

packages/types/src/envelope.ts

@@ -1,4 +1,4 @@
-import type { CheckIn } from './checkin';
+import type { SerializedCheckIn } from './checkin';
 import type { ClientReport } from './clientreport';
 import type { DsnComponents } from './dsn';
 import type { Event } from './event';
@@ -79,7 +79,7 @@ export type SessionItem =
   | BaseEnvelopeItem<SessionItemHeaders, Session>
   | BaseEnvelopeItem<SessionAggregatesItemHeaders, SessionAggregates>;
 export type ClientReportItem = BaseEnvelopeItem<ClientReportItemHeaders, ClientReport>;
-export type CheckInItem = BaseEnvelopeItem<CheckInItemHeaders, CheckIn>;
+export type CheckInItem = BaseEnvelopeItem<CheckInItemHeaders, SerializedCheckIn>;
 type ReplayEventItem = BaseEnvelopeItem<ReplayEventItemHeaders, ReplayEvent>;
 type ReplayRecordingItem = BaseEnvelopeItem<ReplayRecordingItemHeaders, ReplayRecordingData>;
 

packages/types/src/index.ts

@@ -106,4 +106,4 @@ export type { Instrumenter } from './instrumenter';
 export type { HandlerDataFetch, HandlerDataXhr, SentryXhrData, SentryWrappedXMLHttpRequest } from './instrument';
 
 export type { BrowserClientReplayOptions } from './browseroptions';
-export type { CheckIn } from './checkin';
+export type { CheckIn, MonitorConfig, SerializedCheckIn } from './checkin';