refactoring

Resolve #7779

packages/backend/src/server/api/endpoints/following/requests/cancel.ts

@@ -0,0 +1,58 @@
+import $ from 'cafy';
+import { ID } from '@/misc/cafy-id';
+import cancelFollowRequest from '@/services/following/requests/cancel';
+import define from '../../../define';
+import { ApiError } from '../../../error';
+import { getUser } from '../../../common/getters';
+import { Users } from '@/models/index';
+
+export const meta = {
+	tags: ['following', 'account'],
+
+	requireCredential: true as const,
+
+	kind: 'write:following',
+
+	params: {
+		userId: {
+			validator: $.type(ID),
+		}
+	},
+
+	errors: {
+		noSuchUser: {
+			message: 'No such user.',
+			code: 'NO_SUCH_USER',
+			id: '4e68c551-fc4c-4e46-bb41-7d4a37bf9dab'
+		},
+
+		followRequestNotFound: {
+			message: 'Follow request not found.',
+			code: 'FOLLOW_REQUEST_NOT_FOUND',
+			id: '089b125b-d338-482a-9a09-e2622ac9f8d4'
+		},
+	},
+
+	res: {
+		type: 'object' as const,
+		optional: false as const, nullable: false as const,
+		ref: 'User'
+	}
+};
+
+export default define(meta, async (ps, user) => {
+	// Fetch followee
+	const followee = await getUser(ps.userId).catch(e => {
+		if (e.id === '15348ddd-432d-49c2-8a5a-8069753becff') throw new ApiError(meta.errors.noSuchUser);
+		throw e;
+	});
+
+	try {
+		await cancelFollowRequest(followee, user);
+	} catch (e) {
+		if (e.id === '17447091-ce07-46dd-b331-c1fd4f15b1e7') throw new ApiError(meta.errors.followRequestNotFound);
+		throw e;
+	}
+
+	return await Users.pack(followee.id, user);
+});