chore: add eslint rules

api/services/appstore.ts

@@ -16,7 +16,7 @@ interface AppStoreResponse {
 export default async function handler(
   req: NowRequest<{query: string; country: string}>,
   res: NowResponse,
-) {
+): Promise<void> {
   const {query, country} = req.query;
 
   if (!query) {

api/services/debian.ts

@@ -1,6 +1,9 @@
 import {send, sendError, fetch, NowRequest, NowResponse} from '../util/http';
 
-export default async function handler(req: NowRequest, res: NowResponse) {
+export default async function handler(
+  req: NowRequest,
+  res: NowResponse,
+): Promise<void> {
   const {query} = req.query;
 
   if (!query) {

api/services/dns.ts

@@ -10,7 +10,10 @@ function resolvePromise(hostname: string): Promise<string[]> {
   });
 }
 
-export default async function handler(req: NowRequest, res: NowResponse) {
+export default async function handler(
+  req: NowRequest,
+  res: NowResponse,
+): Promise<void> {
   const {query} = req.query;
 
   if (!query) {

api/services/domain.ts

@@ -1,7 +1,10 @@
 import whois from 'whois-json';
 import {send, sendError, NowRequest, NowResponse} from '../util/http';
 
-export default async function handler(req: NowRequest, res: NowResponse) {
+export default async function handler(
+  req: NowRequest,
+  res: NowResponse,
+): Promise<void> {
   const {query} = req.query;
 
   if (!query) {

api/services/existence.ts

@@ -1,6 +1,9 @@
 import {send, sendError, fetch, NowRequest, NowResponse} from '../util/http';
 
-export default async function handler(req: NowRequest, res: NowResponse) {
+export default async function handler(
+  req: NowRequest,
+  res: NowResponse,
+): Promise<void> {
   const {query} = req.query;
 
   if (!query) {
@@ -8,7 +11,7 @@ export default async function handler(req: NowRequest, res: NowResponse) {
   }
 
   if (
-    !/^[(http(s)?):\/\/(www\.)?a-zA-Z0-9@:%._\+~#=]{2,256}\.[a-z]{2,6}\b([-a-zA-Z0-9@:%_\+.~#?&//=]*)$/.test(
+    !/^[(http(s)?)://(www.)?a-zA-Z0-9@:%._+~#=]{2,256}\.[a-z]{2,6}\b([-a-zA-Z0-9@:%_+.~#?&//=]*)$/.test(
       query,
     )
   ) {

api/services/gitlab.ts

@@ -1,7 +1,10 @@
-import {send, sendError, fetch, NowRequest, NowResponse} from '../util/http';
+import {send, sendError, NowRequest, NowResponse} from '../util/http';
 import nodeFetch from 'node-fetch';
 
-export default async function handler(req: NowRequest, res: NowResponse) {
+export default async function handler(
+  req: NowRequest,
+  res: NowResponse,
+): Promise<void> {
   const {query} = req.query;
 
   if (!query) {

api/services/launchpad.ts

@@ -1,6 +1,9 @@
 import {send, sendError, fetch, NowRequest, NowResponse} from '../util/http';
 
-export default async function handler(req: NowRequest, res: NowResponse) {
+export default async function handler(
+  req: NowRequest,
+  res: NowResponse,
+): Promise<void> {
   const {query} = req.query;
 
   if (!query) {

api/services/npm-org.ts

@@ -1,7 +1,10 @@
 import npmName from 'npm-name';
-import {send, sendError, fetch, NowRequest, NowResponse} from '../util/http';
+import {send, sendError, NowRequest, NowResponse} from '../util/http';
 
-export default async function handler(req: NowRequest, res: NowResponse) {
+export default async function handler(
+  req: NowRequest,
+  res: NowResponse,
+): Promise<void> {
   const {query} = req.query;
 
   if (!query) {

api/services/npm.ts

@@ -1,7 +1,10 @@
 import npmName from 'npm-name';
 import {send, sendError, NowRequest, NowResponse} from '../util/http';
 
-export default async function handler(req: NowRequest, res: NowResponse) {
+export default async function handler(
+  req: NowRequest,
+  res: NowResponse,
+): Promise<void> {
   const {query} = req.query;
 
   if (!query) {

api/services/nta.ts

@@ -5,7 +5,7 @@ const APPLICATION_ID = process.env.NTA_APPLICATION_ID;
 export default async function handler(
   req: NowRequest<{query: string; country: string}>,
   res: NowResponse,
-) {
+): Promise<void> {
   const {query} = req.query;
 
   if (!query) {
@@ -24,6 +24,7 @@ export default async function handler(
       'GET',
     );
     const body: string[] = (await response.text()).split('\n').slice(0, -1);
+    // eslint-disable-next-line @typescript-eslint/no-non-null-assertion
     const header = body.shift()!.split(',');
     const result = body.map((csv) => {
       const entry = csv.split(',').map((item) =>
@@ -32,6 +33,7 @@ export default async function handler(
           .replace(/[Ａ-Ｚａ-ｚ０-９]/g, (str) =>
             String.fromCharCode(str.charCodeAt(0) - 0xfee0),
           )
+          // eslint-disable-next-line no-irregular-whitespace
           .replace(/　/g, ' '),
       );
 

api/services/slack.ts

@@ -1,6 +1,9 @@
 import {send, sendError, fetch, NowRequest, NowResponse} from '../util/http';
 
-export default async function handler(req: NowRequest, res: NowResponse) {
+export default async function handler(
+  req: NowRequest,
+  res: NowResponse,
+): Promise<void> {
   const {query} = req.query;
 
   if (!query) {

api/services/spectrum.ts

@@ -1,6 +1,9 @@
 import {send, sendError, fetch, NowResponse, NowRequest} from '../util/http';
 
-export default async function handler(req: NowRequest, res: NowResponse) {
+export default async function handler(
+  req: NowRequest,
+  res: NowResponse,
+): Promise<void> {
   const {query} = req.query;
 
   if (!query) {