diff --git a/bin/add-edb-ids b/bin/add-edb-ids
index bba98fb..6765bb8 100755
--- a/bin/add-edb-ids
+++ b/bin/add-edb-ids
@@ -1,7 +1,7 @@
 #!/usr/bin/env node
 
+import {getMediawikiClient} from '../lib/config.js';
 import {findItemEDBID} from '../lib/api/lodestone.js';
-import {MediaWikiClient} from '../lib/api/mediawiki.js';
 import {diff} from '../lib/util/diff.js';
 
 /**
@@ -54,14 +54,7 @@ function insertInfoboxEDBID (pageContent, edbID) {
 	throw new Error('Dunno how to insert the parameter into this page');
 }
 
-if (!process.env.MW_USERNAME || !process.env.MW_PASSWORD) {
-	console.error('Environment variables `MW_USERNAME` and `MW_PASSWORD` are required.');
-	process.exit(1);
-}
-
-// Log into our wiki client
-const mw = new MediaWikiClient('https://ffxiv.consolegameswiki.com/mediawiki');
-await mw.login(process.env.MW_USERNAME, process.env.MW_PASSWORD);
+const mw = await getMediawikiClient();
 
 // Get pages in the "Missing EDB ID" category from the main article namespace
 const itemPagesWithoutEDBIDs = await mw.listCategoryPages('Category:Missing EDB ID', [0], +process.env.LIMIT || 500);
diff --git a/lib/config.js b/lib/config.js
new file mode 100644
index 0000000..aff689d
--- /dev/null
+++ b/lib/config.js
@@ -0,0 +1,12 @@
+import {MediaWikiClient} from './api/mediawiki.js';
+
+export async function getMediawikiClient () {
+	if (!process.env.MW_USERNAME || !process.env.MW_PASSWORD) {
+		throw new Error('Environment variables `MW_USERNAME` and `MW_PASSWORD` are required.');
+	}
+
+	// Log into our wiki client
+	const mw = new MediaWikiClient('https://ffxiv.consolegameswiki.com/mediawiki');
+	await mw.login(process.env.MW_USERNAME, process.env.MW_PASSWORD);
+	return mw;
+}