switch to Edge Functions

api/index.ts

@@ -1,6 +1,3 @@
-import type { VercelRequest, VercelResponse } from '@vercel/node'
-import fetch from 'cross-fetch'
-
 interface NomadListLocation {
   city: string
   country: string
@@ -22,7 +19,17 @@ interface NomadListLocationResponse {
   }
 }
 
-export default async (req: VercelRequest, res: VercelResponse) => {
+export const config = {
+  runtime: 'experimental-edge'
+}
+
+function removeUnwantedKeys(location: NomadListLocation) {
+  const { place_photo, latitude, longitude, epoch_start, epoch_end, ...rest } =
+    location
+  return rest
+}
+
+export default async () => {
   try {
     if (!process.env.NOMADLIST_PROFILE) {
       throw new Error('Missing NOMADLIST_PROFILE env variable')
@@ -39,10 +46,19 @@ export default async (req: VercelRequest, res: VercelResponse) => {
     }
     const json = (await response.json()) as NomadListLocationResponse
 
-    res.setHeader('Cache-Control', 's-maxage=1, stale-while-revalidate')
-    // return only the location part of the data
-    res.status(200).json(json.location)
+    // return only parts of the data
+    const final = {
+      now: removeUnwantedKeys(json.location.now),
+      next: removeUnwantedKeys(json.location.next)
+    }
+    return new Response(JSON.stringify(final), {
+      status: 200,
+      headers: {
+        'Content-Type': 'application/json',
+        'Cache-Control': 's-maxage=60, stale-while-revalidate'
+      }
+    })
   } catch (error) {
-    res.status(500).send(error)
+    return new Response(JSON.stringify(error), { status: 500 })
   }
 }

package.json

@@ -10,12 +10,8 @@
     "format": "prettier --ignore-path .gitignore './**/*.{css,yml,js,ts,tsx,json}' --write",
     "type-check": "tsc --noEmit"
   },
-  "dependencies": {
-    "cross-fetch": "^3.1.5"
-  },
   "devDependencies": {
     "@types/node": "^18.11.9",
-    "@vercel/node": "^2.6.3",
     "prettier": "^2.7.1",
     "typescript": "^4.9.3"
   },

vercel.json

@@ -5,7 +5,7 @@
       "dest": "/api",
       "headers": {
         "Access-Control-Allow-Origin": "*",
-        "Access-Control-Allow-Methods": "GET",
+        "Access-Control-Allow-Methods": "GET,OPTIONS",
         "Access-Control-Allow-Headers": "X-CSRF-Token, X-Requested-With, Accept, Accept-Version, Content-Length, Content-MD5, Content-Type, Date, X-Api-Version"
       }
     }