fix all type errors

pages/api/pdf/[id].ts

@@ -1,45 +1,47 @@
-import {promises} from 'fs'
+import { promises } from 'fs'
 import { NextApiRequest, NextApiResponse } from 'next'
 
-import {remove as storeRemove} from '../../../lib/store'
+import { remove as storeRemove } from '../../../lib/store'
 import { getPdfPath } from '../../../lib/utils'
 
 const handler = async (req: NextApiRequest, res: NextApiResponse) => {
-    const { method } = req;
+  const { method } = req
 
-    switch (req.method) {
-        case 'GET':
-            try {
-                const {
-                    query: { id: idArg },
-                } = req
+  switch (req.method) {
+    case 'GET':
+      try {
+        const {
+          query: { id: idArg },
+        } = req
 
-                const fileContent = await promises.readFile(getPdfPath(idArg))
-                res.setHeader('Content-Type', 'application/pdf')
-                res.status(200).send(fileContent);
-            } catch (error) {
-                console.error(error)
-                res.status(404).json({ statusCode: 404, message: 'Method Not Allowed' })
-            }
-            break;
-        case 'DELETE':
-            try {
-                const {
-                    query: { id: idArg },
-                } = req
+        const id = Array.isArray(idArg) ? idArg[0] : idArg
 
-                storeRemove(idArg)
+        const fileContent = await promises.readFile(getPdfPath(id))
+        res.setHeader('Content-Type', 'application/pdf')
+        res.status(200).send(fileContent)
+      } catch (error) {
+        console.error(error)
+        res.status(404).json({ statusCode: 404, message: 'Method Not Allowed' })
+      }
+      break
+    case 'DELETE':
+      try {
+        const {
+          query: { id: idArg },
+        } = req
 
-                res.status(202).end()
-            } catch (error) {
-                console.error(error)
-                res.status(404).json({ statusCode: 404, message: 'Method Not Allowed' })
-            }
-            break;
-        default:
-            res.setHeader('Allow', ['GET', 'DELETE'])
-            res.status(405).end(`Method ${method} Not Allowed`)
-    }
+        storeRemove(idArg)
+
+        res.status(202).end()
+      } catch (error) {
+        console.error(error)
+        res.status(404).json({ statusCode: 404, message: 'Method Not Allowed' })
+      }
+      break
+    default:
+      res.setHeader('Allow', ['GET', 'DELETE'])
+      res.status(405).end(`Method ${method} Not Allowed`)
+  }
 }
 
-export default handler;
+export default handler