rudeshark.net/src/server/api/endpoints/i/unpin.ts

import $ from 'cafy';
import ID, { transform } from '../../../../misc/cafy-id';
import { pack } from '../../../../models/user';
import { removePinned } from '../../../../services/i/pin';
import define from '../../define';
import { ApiError } from '../../error';

export const meta = {
	stability: 'stable',

	desc: {
		'ja-JP': '指定した投稿のピン留めを解除します。'
	},

	tags: ['account', 'notes'],

	requireCredential: true,

	kind: 'account-write',

	params: {
		noteId: {
			validator: $.type(ID),
			transform: transform,
			desc: {
				'ja-JP': '対象の投稿のID',
				'en-US': 'Target note ID'
			}
		}
	},

	errors: {
		noSuchNote: {
			message: 'No such note.',
			code: 'NO_SUCH_NOTE',
			id: '454170ce-9d63-4a43-9da1-ea10afe81e21'
		},
	}
};

export default define(meta, async (ps, user) => {
	await removePinned(user, ps.noteId).catch(e => {
		if (e.id === 'b302d4cf-c050-400a-bbb3-be208681f40c') throw new ApiError(meta.errors.noSuchNote);
		throw e;
	});

	return await pack(user, user, {
		detail: true
	});
});