This is the official Sentry JavaScript SDK monorepo, providing error monitoring, performance tracing, session replay, user feedback, and profiling for a wide range of JavaScript runtimes and frameworks. The architecture is a large monorepo with ~50 packages, each targeting specific platforms (browser, Node.js, Cloudflare Workers, Deno, Bun) and frameworks (Next.js, Angular, React, SvelteKit, Nuxt, etc.). The core SDK logic lives in `packages/core`, with platform-specific packages that integrate via a consistent `Sentry.init()` entry point. Data flows from the user's application through instrumented APIs (error handlers, fetch, timers, etc.) to produce events (errors, spans, breadcrumbs, replay recordings) that are serialized into envelopes and sent to Sentry's ingest endpoint via configurable transports. The monorepo also includes bundler plugins for build-time instrumentation (source map upload, debug ID injection, component annotation) and extensive integration tests covering multiple bundler versions and framework releases. The codebase exhibits high craftsmanship with well-defined integration patterns (`defineIntegration`), modular utilities, and comprehensive test infrastructure. It is actively maintained with frequent commits and a broad compatibility surface, though the sheer number of framework-specific packages introduces some maintenance complexity.
This is the official Sentry SDK for PHP (sentry-php), a client library that instruments PHP applications for error tracking, exception capture, performance monitoring (tracing, logging, metrics, profiling, and check-ins). The architecture follows a hub-scope pattern: a global SentrySdk facade manages a stack of Hub instances, each holding a Client and Scope. The Client handles event creation, before-send callbacks, sampling, and integration setup. Events are serialized into Sentry envelope format and transmitted via an HTTP transport (cURL) or a local agent socket. The library ships with numerous integrations for PHP frameworks (Monolog, Guzzle, OpenTelemetry, Symfony, Laravel), a custom Options resolver, serializers, aggregation buffers for metrics and logs, and runtime context isolation for long-lived workers (FrankenPHP, RoadRunner). External dependencies include Monolog, PSR-7, OpenTelemetry API, and the Excimer extension for profiling. The SDK is highly configurable via the Options class and supports extensive event enrichment through scopes and event processors.