{"version":3,"file":"fetch.js","sources":["../../../../../src/transports/fetch.ts"],"sourcesContent":["import type { Transport, TransportMakeRequestResponse, TransportRequest } from '@sentry/core';\nimport { createTransport, makePromiseBuffer } from '@sentry/core';\nimport { clearCachedImplementation, getNativeImplementation } from '@sentry-internal/browser-utils';\nimport type { WINDOW } from '../helpers';\nimport type { BrowserTransportOptions } from './types';\n\nconst DEFAULT_BROWSER_TRANSPORT_BUFFER_SIZE = 40;\n\n/**\n * Creates a Transport that uses the Fetch API to send events to Sentry.\n */\nexport function makeFetchTransport(\n  options: BrowserTransportOptions,\n  nativeFetch: typeof WINDOW.fetch = getNativeImplementation('fetch'),\n): Transport {\n  let pendingBodySize = 0;\n  let pendingCount = 0;\n\n  async function makeRequest(request: TransportRequest): Promise<TransportMakeRequestResponse> {\n    const requestSize = request.body.length;\n    pendingBodySize += requestSize;\n    pendingCount++;\n\n    const requestOptions: RequestInit = {\n      body: request.body,\n      method: 'POST',\n      referrerPolicy: 'strict-origin',\n      headers: options.headers,\n      // Outgoing requests are usually cancelled when navigating to a different page, causing a \"TypeError: Failed to\n      // fetch\" error and sending a \"network_error\" client-outcome - in Chrome, the request status shows \"(cancelled)\".\n      // The `keepalive` flag keeps outgoing requests alive, even when switching pages. We want this since we're\n      // frequently sending events right before the user is switching pages (eg. when finishing navigation transactions).\n      // Gotchas:\n      // - `keepalive` isn't supported by Firefox\n      // - As per spec (https://fetch.spec.whatwg.org/#http-network-or-cache-fetch):\n      //   If the sum of contentLength and inflightKeepaliveBytes is greater than 64 kibibytes, then return a network error.\n      //   We will therefore only activate the flag when we're below that limit.\n      // There is also a limit of requests that can be open at the same time, so we also limit this to 15\n      // See https://github.com/getsentry/sentry-javascript/pull/7553 for details\n      keepalive: pendingBodySize <= 60_000 && pendingCount < 15,\n      ...options.fetchOptions,\n    };\n\n    try {\n      // Note: We do not need to suppress tracing here, because we are using the native fetch, instead of our wrapped one.\n      const response = await nativeFetch(options.url, requestOptions);\n\n      return {\n        statusCode: response.status,\n        headers: {\n          'x-sentry-rate-limits': response.headers.get('X-Sentry-Rate-Limits'),\n          'retry-after': response.headers.get('Retry-After'),\n        },\n      };\n    } catch (e) {\n      clearCachedImplementation('fetch');\n      throw e;\n    } finally {\n      pendingBodySize -= requestSize;\n      pendingCount--;\n    }\n  }\n\n  return createTransport(\n    options,\n    makeRequest,\n    makePromiseBuffer(options.bufferSize || DEFAULT_BROWSER_TRANSPORT_BUFFER_SIZE),\n  );\n}\n"],"names":["getNativeImplementation","clearCachedImplementation","createTransport","makePromiseBuffer"],"mappings":";;;;;AAMA,MAAM,qCAAA,GAAwC,EAAE;;AAEhD;AACA;AACA;AACO,SAAS,kBAAkB;AAClC,EAAE,OAAO;AACT,EAAE,WAAW,GAAwBA,oCAAuB,CAAC,OAAO,CAAC;AACrE,EAAa;AACb,EAAE,IAAI,eAAA,GAAkB,CAAC;AACzB,EAAE,IAAI,YAAA,GAAe,CAAC;;AAEtB,EAAE,eAAe,WAAW,CAAC,OAAO,EAA2D;AAC/F,IAAI,MAAM,WAAA,GAAc,OAAO,CAAC,IAAI,CAAC,MAAM;AAC3C,IAAI,eAAA,IAAmB,WAAW;AAClC,IAAI,YAAY,EAAE;;AAElB,IAAI,MAAM,cAAc,GAAgB;AACxC,MAAM,IAAI,EAAE,OAAO,CAAC,IAAI;AACxB,MAAM,MAAM,EAAE,MAAM;AACpB,MAAM,cAAc,EAAE,eAAe;AACrC,MAAM,OAAO,EAAE,OAAO,CAAC,OAAO;AAC9B;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA,MAAM,SAAS,EAAE,eAAA,IAAmB,SAAU,YAAA,GAAe,EAAE;AAC/D,MAAM,GAAG,OAAO,CAAC,YAAY;AAC7B,KAAK;;AAEL,IAAI,IAAI;AACR;AACA,MAAM,MAAM,QAAA,GAAW,MAAM,WAAW,CAAC,OAAO,CAAC,GAAG,EAAE,cAAc,CAAC;;AAErE,MAAM,OAAO;AACb,QAAQ,UAAU,EAAE,QAAQ,CAAC,MAAM;AACnC,QAAQ,OAAO,EAAE;AACjB,UAAU,sBAAsB,EAAE,QAAQ,CAAC,OAAO,CAAC,GAAG,CAAC,sBAAsB,CAAC;AAC9E,UAAU,aAAa,EAAE,QAAQ,CAAC,OAAO,CAAC,GAAG,CAAC,aAAa,CAAC;AAC5D,SAAS;AACT,OAAO;AACP,IAAI,CAAA,CAAE,OAAO,CAAC,EAAE;AAChB,MAAMC,sCAAyB,CAAC,OAAO,CAAC;AACxC,MAAM,MAAM,CAAC;AACb,IAAI,UAAU;AACd,MAAM,eAAA,IAAmB,WAAW;AACpC,MAAM,YAAY,EAAE;AACpB,IAAI;AACJ,EAAE;;AAEF,EAAE,OAAOC,oBAAe;AACxB,IAAI,OAAO;AACX,IAAI,WAAW;AACf,IAAIC,sBAAiB,CAAC,OAAO,CAAC,UAAA,IAAc,qCAAqC,CAAC;AAClF,GAAG;AACH;;;;"}