Allow using AUTHPROTO_EXTERNAL_DOMAIN to override oauth redirect

Author: essential-randomness

.changeset/moody-lemons-bake.md

@@ -0,0 +1,5 @@
+---
+"@fujocoded/authproto": patch
+---
+
+Allow using AUTHPROTO_EXTERNAL_DOMAIN to override oauth redirect

astro-authproto/src/lib/auth.ts

@@ -78,7 +78,7 @@ const createClient = async (domain: string) => {
 };
 
 const DOMAIN =
-  externalDomain ?? process.env.EXTERNAL_DOMAIN ?? "http://127.0.0.1:4321/";
+  process.env.AUTHPROTO_EXTERNAL_DOMAIN ?? externalDomain ?? "http://127.0.0.1:4321/";
 export const oauthClient = await createClient(DOMAIN);
 
 const IDENTITY_RESOLVER = new DidResolver({});

astro-authproto/src/lib/config.ts

@@ -76,7 +76,7 @@ export const getConfig = ({ options, isDev }: { options: ConfigOptions, isDev: b
     options: undefined,
   };
 
-  const externalDomain = options.externalDomain ?? (isDev ? "http://127.0.0.1:4321/" : undefined);
+  const externalDomain = options.externalDomain ?? (isDev ? "http://127.0.0.1:4321/" : options.applicationDomain);
 
   const scopes: OAuthScope[] = ["atproto"];
   if (Array.isArray(options.scopes)) {