Fake process.env for browsers

packages/js/src/httpClient.ts

@@ -9,6 +9,10 @@ export interface ClientOptions {
   orgId?: string;
 }
 
+// The browsers don't have process.env, fake it
+const process: { env: Record<string, string | undefined> } =
+  typeof window === 'undefined' ? global.process : { env: {} };
+
 export default abstract class HTTPClient {
   protected readonly client: FetchClient;
 

packages/pino/src/index.ts

@@ -1,6 +1,10 @@
 import build from 'pino-abstract-transport';
 import { Axiom, ClientOptions } from '@axiomhq/js';
 
+// The browsers don't have process.env, fake it
+const process: { env: Record<string, string | undefined> } =
+  typeof window === 'undefined' ? global.process : { env: {} };
+
 export enum AxiomEventLevel {
   Trace = 'trace',
   Debug = 'debug',

packages/winston/src/index.ts

@@ -2,6 +2,10 @@ import Transport, { TransportStreamOptions } from 'winston-transport';
 
 import { AxiomWithoutBatching } from '@axiomhq/js';
 
+// The browsers don't have process.env, fake it
+const process: { env: Record<string, string | undefined> } =
+  typeof window === 'undefined' ? global.process : { env: {} };
+
 export interface WinstonOptions extends TransportStreamOptions {
   dataset?: string;
   token?: string;