feat(core)!: Remove standalone Client interface

Instead this now is based on the `BaseClient` class.

Author: mydea

docs/migration/v8-to-v9.md

@@ -146,6 +146,7 @@ This led to some duplication, where we had to keep an interface in `@sentry/type
 Since v9, the types have been merged into `@sentry/core`, which removed some of this duplication. This means that certain things that used to be a separate interface, will not expect an actual instance of the class/concrete implementation. This should not affect most users, unless you relied on passing things with a similar shape to internal methods. The following types are affected:
 
 - `Scope` now always expects the `Scope` class
+- `Client` now always expects the `BaseClient` class - there is no more abstract `Client` that can be implemented! Any `Client` class has to extend from `BaseClient`.
 
 # No Version Support Timeline
 

packages/core/src/asyncContext/stackStrategy.ts

@@ -1,6 +1,6 @@
+import type { Client } from '../baseclient';
 import { getDefaultCurrentScope, getDefaultIsolationScope } from '../defaultScopes';
 import { Scope } from '../scope';
-import type { Client } from '../types-hoist';
 import { isThenable } from '../utils-hoist/is';
 import { getMainCarrier, getSentryCarrier } from './../carrier';
 import type { AsyncContextStrategy } from './types';

packages/core/src/baseclient.ts

@@ -2,7 +2,7 @@
 import type {
   Breadcrumb,
   BreadcrumbHint,
-  Client,
+  CheckIn,
   ClientOptions,
   DataCategory,
   DsnComponents,
@@ -15,6 +15,7 @@ import type {
   EventProcessor,
   FeedbackEvent,
   Integration,
+  MonitorConfig,
   Outcome,
   ParameterizedString,
   SdkMetadata,
@@ -63,10 +64,10 @@ const MISSING_RELEASE_FOR_SESSION_ERROR = 'Discarded session because of missing
  *
  * Call the constructor with the corresponding options
  * specific to the client subclass. To access these options later, use
- * {@link Client.getOptions}.
+ * {@link BaseClient.getOptions}.
  *
  * If a Dsn is specified in the options, it will be parsed and stored. Use
- * {@link Client.getDsn} to retrieve the Dsn at any moment. In case the Dsn is
+ * {@link BaseClient.getDsn} to retrieve the Dsn at any moment. In case the Dsn is
  * invalid, the constructor will throw a {@link SentryException}. Note that
  * without a valid Dsn, the SDK will not send any events to Sentry.
  *
@@ -76,9 +77,9 @@ const MISSING_RELEASE_FOR_SESSION_ERROR = 'Discarded session because of missing
  * method and extend the resulting prepared event.
  *
  * To issue automatically created events (e.g. via instrumentation), use
- * {@link Client.captureEvent}. It will prepare the event and pass it through
+ * {@link BaseClient.captureEvent}. It will prepare the event and pass it through
  * the callback lifecycle. To issue auto-breadcrumbs, use
- * {@link Client.addBreadcrumb}.
+ * {@link BaseClient.addBreadcrumb}.
  *
  * @example
  * class NodeClient extends BaseClient<NodeOptions> {
@@ -89,7 +90,7 @@ const MISSING_RELEASE_FOR_SESSION_ERROR = 'Discarded session because of missing
  *   // ...
  * }
  */
-export abstract class BaseClient<O extends ClientOptions> implements Client<O> {
+export abstract class BaseClient<O extends ClientOptions> {
   /** Options passed to the SDK. */
   protected readonly _options: O;
 
@@ -243,6 +244,17 @@ export abstract class BaseClient<O extends ClientOptions> implements Client<O> {
     updateSession(session, { init: false });
   }
 
+  /**
+   * Create a cron monitor check in and send it to Sentry. This method is not available on all clients.
+   *
+   * @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.
+   * @param scope An optional scope containing event metadata.
+   * @returns A string representing the id of the check in.
+   */
+  public captureCheckIn?(checkIn: CheckIn, monitorConfig?: MonitorConfig, scope?: Scope): string;
+
   /**
    * @inheritDoc
    */
@@ -452,7 +464,7 @@ export abstract class BaseClient<O extends ClientOptions> implements Client<O> {
   /** @inheritdoc */
   public on(
     hook: 'beforeSendFeedback',
-    callback: (feedback: FeedbackEvent, options?: { includeReplay: boolean }) => void,
+    callback: (feedback: FeedbackEvent, options?: { includeReplay?: boolean }) => void,
   ): () => void;
 
   /** @inheritdoc */
@@ -547,7 +559,7 @@ export abstract class BaseClient<O extends ClientOptions> implements Client<O> {
   public emit(hook: 'createDsc', dsc: DynamicSamplingContext, rootSpan?: Span): void;
 
   /** @inheritdoc */
-  public emit(hook: 'beforeSendFeedback', feedback: FeedbackEvent, options?: { includeReplay: boolean }): void;
+  public emit(hook: 'beforeSendFeedback', feedback: FeedbackEvent, options?: { includeReplay?: boolean }): void;
 
   /** @inheritdoc */
   public emit(
@@ -948,6 +960,8 @@ export abstract class BaseClient<O extends ClientOptions> implements Client<O> {
   ): PromiseLike<Event>;
 }
 
+export type Client<O extends ClientOptions = ClientOptions> = BaseClient<O>;
+
 /**
  * Verifies that return value of configured `beforeSend` or `beforeSendTransaction` is of expected type, and returns the value if so.
  */

packages/core/src/currentScopes.ts

@@ -1,7 +1,8 @@
 import { getAsyncContextStrategy } from './asyncContext';
+import type { Client } from './baseclient';
 import { getGlobalSingleton, getMainCarrier } from './carrier';
 import { Scope } from './scope';
-import type { Client, TraceContext } from './types-hoist';
+import type { TraceContext } from './types-hoist';
 import { dropUndefinedKeys } from './utils-hoist/object';
 
 /**

packages/core/src/envelope.ts

@@ -1,7 +1,7 @@
+import type { Client } from './baseclient';
 import { getDynamicSamplingContextFromSpan } from './tracing/dynamicSamplingContext';
 import type { SentrySpan } from './tracing/sentrySpan';
 import type {
-  Client,
   DsnComponents,
   DynamicSamplingContext,
   Event,

packages/core/src/exports.ts

@@ -1,3 +1,7 @@
+import { getClient, getCurrentScope, getIsolationScope, withIsolationScope } from './currentScopes';
+import { DEBUG_BUILD } from './debug-build';
+import type { CaptureContext } from './scope';
+import { closeSession, makeSession, updateSession } from './session';
 import type {
   CheckIn,
   Event,
@@ -13,11 +17,6 @@ import type {
   SeverityLevel,
   User,
 } from './types-hoist';
-
-import { getClient, getCurrentScope, getIsolationScope, withIsolationScope } from './currentScopes';
-import { DEBUG_BUILD } from './debug-build';
-import type { CaptureContext } from './scope';
-import { closeSession, makeSession, updateSession } from './session';
 import { isThenable } from './utils-hoist/is';
 import { logger } from './utils-hoist/logger';
 import { uuid4 } from './utils-hoist/misc';

packages/core/src/fetch.ts

@@ -1,8 +1,9 @@
+import type { Client } from './baseclient';
 import type { Scope } from './scope';
 import { SEMANTIC_ATTRIBUTE_SENTRY_OP, SEMANTIC_ATTRIBUTE_SENTRY_ORIGIN } from './semanticAttributes';
 import { SPAN_STATUS_ERROR, setHttpStatus, startInactiveSpan } from './tracing';
 import { SentryNonRecordingSpan } from './tracing/sentryNonRecordingSpan';
-import type { Client, HandlerDataFetch, Span, SpanOrigin } from './types-hoist';
+import type { HandlerDataFetch, Span, SpanOrigin } from './types-hoist';
 import { SENTRY_BAGGAGE_KEY_PREFIX } from './utils-hoist/baggage';
 import { isInstanceOf } from './utils-hoist/is';
 import { parseUrl } from './utils-hoist/url';

packages/core/src/getCurrentHubShim.ts

@@ -1,3 +1,4 @@
+import type { Client } from './baseclient';
 import { addBreadcrumb } from './breadcrumbs';
 import { getClient, getCurrentScope, getIsolationScope, withScope } from './currentScopes';
 import {
@@ -11,7 +12,7 @@ import {
   setUser,
   startSession,
 } from './exports';
-import type { Client, EventHint, Hub, Integration, IntegrationClass, SeverityLevel } from './types-hoist';
+import type { EventHint, Hub, Integration, IntegrationClass, SeverityLevel } from './types-hoist';
 
 /**
  * This is for legacy reasons, and returns a proxy object instead of a hub to be used.

packages/core/src/index.ts

@@ -52,6 +52,7 @@ export type { CaptureContext, ScopeContext, ScopeData } from './scope';
 export { notifyEventProcessors } from './eventProcessors';
 export { getEnvelopeEndpointWithUrlEncodedAuth, getReportDialogEndpoint } from './api';
 export { BaseClient } from './baseclient';
+export type { Client } from './baseclient';
 export { ServerRuntimeClient } from './server-runtime-client';
 export { initAndBind, setCurrentClient } from './sdk';
 export { createTransport } from './transports/base';

packages/core/src/integration.ts

@@ -1,7 +1,7 @@
+import type { Client } from './baseclient';
 import { getClient } from './currentScopes';
-import type { Client, Event, EventHint, Integration, IntegrationFn, Options } from './types-hoist';
-
 import { DEBUG_BUILD } from './debug-build';
+import type { Event, EventHint, Integration, IntegrationFn, Options } from './types-hoist';
 import { logger } from './utils-hoist/logger';
 
 export const installedIntegrations: string[] = [];