// This is the entry point of Sentry's frontend application. Want to // understand how app boots? Read on! // // 1. Load the `bootstrap` and `initializeMain` functions // // a. Execute and wait for `bootstrap` to complete. // // Bootstrapping loads early-runtime configuration. See the // client_config.py backend view for more details. // // Bootstrapping will do different things depending on if the app is // running in SPA mode vs being booted from the django rendered layout // template. // // - SPA mode loads client-config via a HTTP request. // - Django rendered mode loads client-config from a window global. // // 2. Once the app has been bootstrapped with the client-config data we can // initialize the app. // // a. The locale module will be initialized using `initializeLocale`. See this // function in app/bootstrap/initializeLocale to understand the priority // for how it determines the locale // // This also handles lazily loading non English locale files if needed. // There is no English locale file as our locale strings are keyed using // the English strings. // // b. Call `initalizeApp`, which starts most everything else // // 3. App initialization does the following... // // a. Initialize the ConfigStore with client-config data. // // b. Initialize the Sentry SDK. This includes setting up integrations for // routing and tracing. // // c. The
component is rendered. See step 4 for more details. // // d. Run global init-queue tasks. These are essentially functions registered // in the `window.__onSentryInit` array from outside of the app. This is // specifically for old-style pages rendered as django templates, but // still need React frontend components. // // This also includes exporting some globals into the window. // // 4. Once the app is fully initialized we begin rendering React components. To // understand the rendering tree from this point forward it's best to follow // the component tree from
// // For a quick overview, here's what most render trees will look like: // // <-- Provides emotions theme in context // | // <-- Matches URLs and renders nested views // | // <-- The App view handles initializing basic // | parts of the application (such as loading // | your org list) // | // <-- Most routes live within the // OrganizationLayout, which handles loading // details for the org, projects, and teams. // // // Did you read through this whole thing and don't even work here? [1] // // [1]: https://sentry.io/careers/ async function app() { // We won't need initalizeMainImport until we complete bootstrapping. // Initaite the fetch, just don't await it until we need it. const initalizeMainImport = import('sentry/bootstrap/initializeMain'); const bootstrapImport = import('sentry/bootstrap'); const {bootstrap} = await bootstrapImport; const config = await bootstrap(); const {initializeMain} = await initalizeMainImport; initializeMain(config); } app();