Function applyNoProxyOption

packages/node-core/src/transports/http.ts:90–104

* Honors the `no_proxy` env variable with the highest priority to allow for hosts exclusion. * * @param transportUrl The URL the transport intends to send events to. * @param proxy The client configured proxy. * @returns A proxy the transport should use.

(transportUrlSegments: URL, proxy: string | undefined)

 * @returns A proxy the transport should use.
 */
function applyNoProxyOption(transportUrlSegments: URL, proxy: string | undefined): string | undefined {
  const { no_proxy } = process.env;

  const urlIsExemptFromProxy = no_proxy
    ?.split(',')
    .some(
      exemption => transportUrlSegments.host.endsWith(exemption) || transportUrlSegments.hostname.endsWith(exemption),
    );

  if (urlIsExemptFromProxy) {
    return undefined;
  } else {
    return proxy;
  }
}

/**
 * Creates a RequestExecutor to be used with `createTransport`.