D13811.diff
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	diff --git a/keyserver/src/utils/farcaster-utils.js b/keyserver/src/utils/farcaster-utils.js
	new file mode 100644
	--- /dev/null
	+++ b/keyserver/src/utils/farcaster-utils.js
	@@ -0,0 +1,26 @@
	+// @flow
	+
	+import { getRustAPI } from 'rust-node-addon';
	+
	+import { verifyUserIDs } from '../fetchers/user-fetchers.js';
	+
	+async function getVerifiedUserIDForFID(fid: string): Promise<?string> {
	+ const rustAPI = await getRustAPI();
	+ const farcasterUsers = await rustAPI.getFarcasterUsers([fid]);
	+
	+ if (farcasterUsers.length !== 1) {
	+ return null;
	+ }
	+
	+ const userIDForFID = farcasterUsers[0].userID;
	+
	+ const verifiedUserIDs = await verifyUserIDs([userIDForFID]);
	+
	+ if (verifiedUserIDs.length !== 1) {
	+ return null;
	+ }
	+
	+ return userIDForFID;
	+}
	+
	+export { getVerifiedUserIDForFID };