12 files changed, 42 insertions, 89 deletions
diff --git a/src/server/api/endpoints/drive/files.ts b/src/server/api/endpoints/drive/files.ts
index 63d69d145a..ab4b18cef4 100644
--- a/src/server/api/endpoints/drive/files.ts
+++ b/src/server/api/endpoints/drive/files.ts
@@ -1,28 +1,23 @@
 /**
  * Module dependencies
  */
-import $ from 'cafy';
+import $ from 'cafy'; import ID from '../../../../cafy-id';
 import DriveFile, { pack } from '../../../../models/drive-file';
 
 /**
  * Get drive files
- *
- * @param {any} params
- * @param {any} user
- * @param {any} app
- * @return {Promise<any>}
  */
 module.exports = async (params, user, app) => {
 	// Get 'limit' parameter
-	const [limit = 10, limitErr] = $(params.limit).optional.number().range(1, 100).$;
+	const [limit = 10, limitErr] = $.num.optional().range(1, 100).get(params.limit);
 	if (limitErr) throw 'invalid limit param';
 
 	// Get 'sinceId' parameter
-	const [sinceId, sinceIdErr] = $(params.sinceId).optional.id().$;
+	const [sinceId, sinceIdErr] = $.type(ID).optional().get(params.sinceId);
 	if (sinceIdErr) throw 'invalid sinceId param';
 
 	// Get 'untilId' parameter
-	const [untilId, untilIdErr] = $(params.untilId).optional.id().$;
+	const [untilId, untilIdErr] = $.type(ID).optional().get(params.untilId);
 	if (untilIdErr) throw 'invalid untilId param';
 
 	// Check if both of sinceId and untilId is specified
@@ -31,11 +26,11 @@ module.exports = async (params, user, app) => {
 	}
 
 	// Get 'folderId' parameter
-	const [folderId = null, folderIdErr] = $(params.folderId).optional.nullable.id().$;
+	const [folderId = null, folderIdErr] = $.type(ID).optional().nullable().get(params.folderId);
 	if (folderIdErr) throw 'invalid folderId param';
 
 	// Get 'type' parameter
-	const [type, typeErr] = $(params.type).optional.string().match(/^[a-zA-Z\/\-\*]+$/).$;
+	const [type, typeErr] = $.str.optional().match(/^[a-zA-Z\/\-\*]+$/).get(params.type);
 	if (typeErr) throw 'invalid type param';
 
 	// Construct query
diff --git a/src/server/api/endpoints/drive/files/create.ts b/src/server/api/endpoints/drive/files/create.ts
index df0bd0a0d3..e9348e4e2f 100644
--- a/src/server/api/endpoints/drive/files/create.ts
+++ b/src/server/api/endpoints/drive/files/create.ts
@@ -1,17 +1,12 @@
 /**
  * Module dependencies
  */
-import $ from 'cafy';
+import $ from 'cafy'; import ID from '../../../../../cafy-id';
 import { validateFileName, pack } from '../../../../../models/drive-file';
 import create from '../../../../../services/drive/add-file';
 
 /**
  * Create a file
- *
- * @param {any} file
- * @param {any} params
- * @param {any} user
- * @return {Promise<any>}
  */
 module.exports = async (file, params, user): Promise<any> => {
 	if (file == null) {
@@ -34,7 +29,7 @@ module.exports = async (file, params, user): Promise<any> => {
 	}
 
 	// Get 'folderId' parameter
-	const [folderId = null, folderIdErr] = $(params.folderId).optional.nullable.id().$;
+	const [folderId = null, folderIdErr] = $.type(ID).optional().nullable().get(params.folderId);
 	if (folderIdErr) throw 'invalid folderId param';
 
 	try {
diff --git a/src/server/api/endpoints/drive/files/find.ts b/src/server/api/endpoints/drive/files/find.ts
index 0ab6e5d3e3..98165990fe 100644
--- a/src/server/api/endpoints/drive/files/find.ts
+++ b/src/server/api/endpoints/drive/files/find.ts
@@ -1,23 +1,19 @@
 /**
  * Module dependencies
  */
-import $ from 'cafy';
+import $ from 'cafy'; import ID from '../../../../../cafy-id';
 import DriveFile, { pack } from '../../../../../models/drive-file';
 
 /**
  * Find a file(s)
- *
- * @param {any} params
- * @param {any} user
- * @return {Promise<any>}
  */
 module.exports = (params, user) => new Promise(async (res, rej) => {
 	// Get 'name' parameter
-	const [name, nameErr] = $(params.name).string().$;
+	const [name, nameErr] = $.str.get(params.name);
 	if (nameErr) return rej('invalid name param');
 
 	// Get 'folderId' parameter
-	const [folderId = null, folderIdErr] = $(params.folderId).optional.nullable.id().$;
+	const [folderId = null, folderIdErr] = $.type(ID).optional().nullable().get(params.folderId);
 	if (folderIdErr) return rej('invalid folderId param');
 
 	// Issue query
diff --git a/src/server/api/endpoints/drive/files/show.ts b/src/server/api/endpoints/drive/files/show.ts
index 3398f24541..c7efda7ab0 100644
--- a/src/server/api/endpoints/drive/files/show.ts
+++ b/src/server/api/endpoints/drive/files/show.ts
@@ -1,19 +1,15 @@
 /**
  * Module dependencies
  */
-import $ from 'cafy';
+import $ from 'cafy'; import ID from '../../../../../cafy-id';
 import DriveFile, { pack } from '../../../../../models/drive-file';
 
 /**
  * Show a file
- *
- * @param {any} params
- * @param {any} user
- * @return {Promise<any>}
  */
 module.exports = async (params, user) => {
 	// Get 'fileId' parameter
-	const [fileId, fileIdErr] = $(params.fileId).id().$;
+	const [fileId, fileIdErr] = $.type(ID).get(params.fileId);
 	if (fileIdErr) throw 'invalid fileId param';
 
 	// Fetch file
diff --git a/src/server/api/endpoints/drive/files/update.ts b/src/server/api/endpoints/drive/files/update.ts
index c783ad8b3b..12fa8e025d 100644
--- a/src/server/api/endpoints/drive/files/update.ts
+++ b/src/server/api/endpoints/drive/files/update.ts
@@ -1,21 +1,17 @@
 /**
  * Module dependencies
  */
-import $ from 'cafy';
+import $ from 'cafy'; import ID from '../../../../../cafy-id';
 import DriveFolder from '../../../../../models/drive-folder';
 import DriveFile, { validateFileName, pack } from '../../../../../models/drive-file';
 import { publishDriveStream } from '../../../../../publishers/stream';
 
 /**
  * Update a file
- *
- * @param {any} params
- * @param {any} user
- * @return {Promise<any>}
  */
 module.exports = (params, user) => new Promise(async (res, rej) => {
 	// Get 'fileId' parameter
-	const [fileId, fileIdErr] = $(params.fileId).id().$;
+	const [fileId, fileIdErr] = $.type(ID).get(params.fileId);
 	if (fileIdErr) return rej('invalid fileId param');
 
 	// Fetch file
@@ -30,12 +26,12 @@ module.exports = (params, user) => new Promise(async (res, rej) => {
 	}
 
 	// Get 'name' parameter
-	const [name, nameErr] = $(params.name).optional.string().pipe(validateFileName).$;
+	const [name, nameErr] = $.str.optional().pipe(validateFileName).get(params.name);
 	if (nameErr) return rej('invalid name param');
 	if (name) file.filename = name;
 
 	// Get 'folderId' parameter
-	const [folderId, folderIdErr] = $(params.folderId).optional.nullable.id().$;
+	const [folderId, folderIdErr] = $.type(ID).optional().nullable().get(params.folderId);
 	if (folderIdErr) return rej('invalid folderId param');
 
 	if (folderId !== undefined) {
diff --git a/src/server/api/endpoints/drive/files/upload_from_url.ts b/src/server/api/endpoints/drive/files/upload_from_url.ts
index 8a426c0efc..c012f0d3c9 100644
--- a/src/server/api/endpoints/drive/files/upload_from_url.ts
+++ b/src/server/api/endpoints/drive/files/upload_from_url.ts
@@ -1,7 +1,7 @@
 /**
  * Module dependencies
  */
-import $ from 'cafy';
+import $ from 'cafy'; import ID from '../../../../../cafy-id';
 import { pack } from '../../../../../models/drive-file';
 import uploadFromUrl from '../../../../../services/drive/upload-from-url';
 
@@ -11,11 +11,11 @@ import uploadFromUrl from '../../../../../services/drive/upload-from-url';
 module.exports = async (params, user): Promise<any> => {
 	// Get 'url' parameter
 	// TODO: Validate this url
-	const [url, urlErr] = $(params.url).string().$;
+	const [url, urlErr] = $.str.get(params.url);
 	if (urlErr) throw 'invalid url param';
 
 	// Get 'folderId' parameter
-	const [folderId = null, folderIdErr] = $(params.folderId).optional.nullable.id().$;
+	const [folderId = null, folderIdErr] = $.type(ID).optional().nullable().get(params.folderId);
 	if (folderIdErr) throw 'invalid folderId param';
 
 	return pack(await uploadFromUrl(url, user, folderId));
diff --git a/src/server/api/endpoints/drive/folders.ts b/src/server/api/endpoints/drive/folders.ts
index 489e47912e..bc6c50eb99 100644
--- a/src/server/api/endpoints/drive/folders.ts
+++ b/src/server/api/endpoints/drive/folders.ts
@@ -1,28 +1,23 @@
 /**
  * Module dependencies
  */
-import $ from 'cafy';
+import $ from 'cafy'; import ID from '../../../../cafy-id';
 import DriveFolder, { pack } from '../../../../models/drive-folder';
 
 /**
  * Get drive folders
- *
- * @param {any} params
- * @param {any} user
- * @param {any} app
- * @return {Promise<any>}
  */
 module.exports = (params, user, app) => new Promise(async (res, rej) => {
 	// Get 'limit' parameter
-	const [limit = 10, limitErr] = $(params.limit).optional.number().range(1, 100).$;
+	const [limit = 10, limitErr] = $.num.optional().range(1, 100).get(params.limit);
 	if (limitErr) return rej('invalid limit param');
 
 	// Get 'sinceId' parameter
-	const [sinceId, sinceIdErr] = $(params.sinceId).optional.id().$;
+	const [sinceId, sinceIdErr] = $.type(ID).optional().get(params.sinceId);
 	if (sinceIdErr) return rej('invalid sinceId param');
 
 	// Get 'untilId' parameter
-	const [untilId, untilIdErr] = $(params.untilId).optional.id().$;
+	const [untilId, untilIdErr] = $.type(ID).optional().get(params.untilId);
 	if (untilIdErr) return rej('invalid untilId param');
 
 	// Check if both of sinceId and untilId is specified
@@ -31,7 +26,7 @@ module.exports = (params, user, app) => new Promise(async (res, rej) => {
 	}
 
 	// Get 'folderId' parameter
-	const [folderId = null, folderIdErr] = $(params.folderId).optional.nullable.id().$;
+	const [folderId = null, folderIdErr] = $.type(ID).optional().nullable().get(params.folderId);
 	if (folderIdErr) return rej('invalid folderId param');
 
 	// Construct query
diff --git a/src/server/api/endpoints/drive/folders/create.ts b/src/server/api/endpoints/drive/folders/create.ts
index f34d0019d7..62e3b6f6e8 100644
--- a/src/server/api/endpoints/drive/folders/create.ts
+++ b/src/server/api/endpoints/drive/folders/create.ts
@@ -1,24 +1,20 @@
 /**
  * Module dependencies
  */
-import $ from 'cafy';
+import $ from 'cafy'; import ID from '../../../../../cafy-id';
 import DriveFolder, { isValidFolderName, pack } from '../../../../../models/drive-folder';
 import { publishDriveStream } from '../../../../../publishers/stream';
 
 /**
  * Create drive folder
- *
- * @param {any} params
- * @param {any} user
- * @return {Promise<any>}
  */
 module.exports = (params, user) => new Promise(async (res, rej) => {
 	// Get 'name' parameter
-	const [name = '無題のフォルダー', nameErr] = $(params.name).optional.string().pipe(isValidFolderName).$;
+	const [name = '無題のフォルダー', nameErr] = $.str.optional().pipe(isValidFolderName).get(params.name);
 	if (nameErr) return rej('invalid name param');
 
 	// Get 'parentId' parameter
-	const [parentId = null, parentIdErr] = $(params.parentId).optional.nullable.id().$;
+	const [parentId = null, parentIdErr] = $.type(ID).optional().nullable().get(params.parentId);
 	if (parentIdErr) return rej('invalid parentId param');
 
 	// If the parent folder is specified
diff --git a/src/server/api/endpoints/drive/folders/find.ts b/src/server/api/endpoints/drive/folders/find.ts
index 04dc38f87f..9703d9e99d 100644
--- a/src/server/api/endpoints/drive/folders/find.ts
+++ b/src/server/api/endpoints/drive/folders/find.ts
@@ -1,23 +1,19 @@
 /**
  * Module dependencies
  */
-import $ from 'cafy';
+import $ from 'cafy'; import ID from '../../../../../cafy-id';
 import DriveFolder, { pack } from '../../../../../models/drive-folder';
 
 /**
  * Find a folder(s)
- *
- * @param {any} params
- * @param {any} user
- * @return {Promise<any>}
  */
 module.exports = (params, user) => new Promise(async (res, rej) => {
 	// Get 'name' parameter
-	const [name, nameErr] = $(params.name).string().$;
+	const [name, nameErr] = $.str.get(params.name);
 	if (nameErr) return rej('invalid name param');
 
 	// Get 'parentId' parameter
-	const [parentId = null, parentIdErr] = $(params.parentId).optional.nullable.id().$;
+	const [parentId = null, parentIdErr] = $.type(ID).optional().nullable().get(params.parentId);
 	if (parentIdErr) return rej('invalid parentId param');
 
 	// Issue query
diff --git a/src/server/api/endpoints/drive/folders/show.ts b/src/server/api/endpoints/drive/folders/show.ts
index b432f5a50a..44f1889001 100644
--- a/src/server/api/endpoints/drive/folders/show.ts
+++ b/src/server/api/endpoints/drive/folders/show.ts
@@ -1,19 +1,15 @@
 /**
  * Module dependencies
  */
-import $ from 'cafy';
+import $ from 'cafy'; import ID from '../../../../../cafy-id';
 import DriveFolder, { pack } from '../../../../../models/drive-folder';
 
 /**
  * Show a folder
- *
- * @param {any} params
- * @param {any} user
- * @return {Promise<any>}
  */
 module.exports = (params, user) => new Promise(async (res, rej) => {
 	// Get 'folderId' parameter
-	const [folderId, folderIdErr] = $(params.folderId).id().$;
+	const [folderId, folderIdErr] = $.type(ID).get(params.folderId);
 	if (folderIdErr) return rej('invalid folderId param');
 
 	// Get folder
diff --git a/src/server/api/endpoints/drive/folders/update.ts b/src/server/api/endpoints/drive/folders/update.ts
index dd7e8f5c86..e24d8a14cd 100644
--- a/src/server/api/endpoints/drive/folders/update.ts
+++ b/src/server/api/endpoints/drive/folders/update.ts
@@ -1,20 +1,16 @@
 /**
  * Module dependencies
  */
-import $ from 'cafy';
+import $ from 'cafy'; import ID from '../../../../../cafy-id';
 import DriveFolder, { isValidFolderName, pack } from '../../../../../models/drive-folder';
 import { publishDriveStream } from '../../../../../publishers/stream';
 
 /**
  * Update a folder
- *
- * @param {any} params
- * @param {any} user
- * @return {Promise<any>}
  */
 module.exports = (params, user) => new Promise(async (res, rej) => {
 	// Get 'folderId' parameter
-	const [folderId, folderIdErr] = $(params.folderId).id().$;
+	const [folderId, folderIdErr] = $.type(ID).get(params.folderId);
 	if (folderIdErr) return rej('invalid folderId param');
 
 	// Fetch folder
@@ -29,12 +25,12 @@ module.exports = (params, user) => new Promise(async (res, rej) => {
 	}
 
 	// Get 'name' parameter
-	const [name, nameErr] = $(params.name).optional.string().pipe(isValidFolderName).$;
+	const [name, nameErr] = $.str.optional().pipe(isValidFolderName).get(params.name);
 	if (nameErr) return rej('invalid name param');
 	if (name) folder.name = name;
 
 	// Get 'parentId' parameter
-	const [parentId, parentIdErr] = $(params.parentId).optional.nullable.id().$;
+	const [parentId, parentIdErr] = $.type(ID).optional().nullable().get(params.parentId);
 	if (parentIdErr) return rej('invalid parentId param');
 	if (parentId !== undefined) {
 		if (parentId === null) {
diff --git a/src/server/api/endpoints/drive/stream.ts b/src/server/api/endpoints/drive/stream.ts
index 02313aa37b..8cb3a99b42 100644
--- a/src/server/api/endpoints/drive/stream.ts
+++ b/src/server/api/endpoints/drive/stream.ts
@@ -1,27 +1,23 @@
 /**
  * Module dependencies
  */
-import $ from 'cafy';
+import $ from 'cafy'; import ID from '../../../../cafy-id';
 import DriveFile, { pack } from '../../../../models/drive-file';
 
 /**
  * Get drive stream
- *
- * @param {any} params
- * @param {any} user
- * @return {Promise<any>}
  */
 module.exports = (params, user) => new Promise(async (res, rej) => {
 	// Get 'limit' parameter
-	const [limit = 10, limitErr] = $(params.limit).optional.number().range(1, 100).$;
+	const [limit = 10, limitErr] = $.num.optional().range(1, 100).get(params.limit);
 	if (limitErr) return rej('invalid limit param');
 
 	// Get 'sinceId' parameter
-	const [sinceId, sinceIdErr] = $(params.sinceId).optional.id().$;
+	const [sinceId, sinceIdErr] = $.type(ID).optional().get(params.sinceId);
 	if (sinceIdErr) return rej('invalid sinceId param');
 
 	// Get 'untilId' parameter
-	const [untilId, untilIdErr] = $(params.untilId).optional.id().$;
+	const [untilId, untilIdErr] = $.type(ID).optional().get(params.untilId);
 	if (untilIdErr) return rej('invalid untilId param');
 
 	// Check if both of sinceId and untilId is specified
@@ -30,7 +26,7 @@ module.exports = (params, user) => new Promise(async (res, rej) => {
 	}
 
 	// Get 'type' parameter
-	const [type, typeErr] = $(params.type).optional.string().match(/^[a-zA-Z\/\-\*]+$/).$;
+	const [type, typeErr] = $.str.optional().match(/^[a-zA-Z\/\-\*]+$/).get(params.type);
 	if (typeErr) return rej('invalid type param');
 
 	// Construct query