Initial commit

pocketbase/sidecar/fcmPush.ts

@@ -0,0 +1,74 @@
+import { getAccessToken, getServiceAccount } from './fcmAuth.ts'
+
+export async function handleFcmPush(req: Request): Promise<Response> {
+  const secret = Deno.env.get('SIDECAR_SECRET')
+  if (secret && req.headers.get('x-sidecar-secret') !== secret) {
+    return new Response('Unauthorized', { status: 401 })
+  }
+
+  let body: {
+    tokens: string[]
+    title: string
+    body: string
+    data?: Record<string, string>
+  }
+
+  try {
+    body = await req.json()
+  } catch {
+    return new Response('Invalid JSON', { status: 400 })
+  }
+
+  const { tokens, title, body: messageBody, data } = body
+
+  if (!tokens?.length) {
+    return new Response('No tokens provided', { status: 400 })
+  }
+
+  const { project_id } = getServiceAccount()
+  const accessToken = await getAccessToken()
+
+  const results = await Promise.allSettled(
+    tokens.map(token =>
+      fetch(
+        `https://fcm.googleapis.com/v1/projects/${project_id}/messages:send`,
+        {
+          method: 'POST',
+          headers: {
+            'Authorization': `Bearer ${accessToken}`,
+            'Content-Type': 'application/json'
+          },
+          body: JSON.stringify({
+            message: {
+              token,
+              notification: { title, body: messageBody },
+              ...(data ? { data } : {})
+            }
+          })
+        }
+      ).then(async (r) => {
+        if (!r.ok) {
+          const err = await r.json()
+          throw new Error(err.error?.message ?? r.statusText)
+        }
+        return r.json()
+      })
+    )
+  )
+
+  let successCount = 0
+  let failureCount = 0
+
+  results.forEach((result, i) => {
+    if (result.status === 'fulfilled') {
+      successCount++
+    } else {
+      failureCount++
+      console.error(`FCM failed for token ${tokens[i]}:`, result.reason)
+    }
+  })
+
+  console.log(`FCM: ${successCount} sent, ${failureCount} failed`)
+
+  return Response.json({ successCount, failureCount })
+}