From d577ce9b983ca6ea157b93c530019daa4f58dca8 Mon Sep 17 00:00:00 2001
From: thorwebdev <thor@supabase.io>
Date: Mon, 10 Oct 2022 11:31:35 +0800
Subject: [PATCH] feat: edge functions get tshirt competition

---
 .../functions/_shared/supabaseClient.ts       |  7 ++
 .../get-tshirt-competition/README.md          | 25 +++++++
 .../functions/get-tshirt-competition/index.ts | 65 +++++++++++++++++++
 3 files changed, 97 insertions(+)
 create mode 100644 examples/edge-functions/supabase/functions/get-tshirt-competition/README.md
 create mode 100644 examples/edge-functions/supabase/functions/get-tshirt-competition/index.ts

diff --git a/examples/edge-functions/supabase/functions/_shared/supabaseClient.ts b/examples/edge-functions/supabase/functions/_shared/supabaseClient.ts
index 2205294d529..36811de9b4a 100644
--- a/examples/edge-functions/supabase/functions/_shared/supabaseClient.ts
+++ b/examples/edge-functions/supabase/functions/_shared/supabaseClient.ts
@@ -6,3 +6,10 @@ export const supabaseClient = createClient(
   // Supabase API ANON KEY - env var exported by default when deployed.
   Deno.env.get('SUPABASE_ANON_KEY') ?? ''
 )
+
+export const supabaseAdminClient = createClient(
+  // Supabase API URL - env var exported by default when deployed.
+  Deno.env.get('SUPABASE_URL') ?? '',
+  // Supabase API ANON KEY - env var exported by default when deployed.
+  Deno.env.get('SUPABASE_SERVICE_ROLE_KEY') ?? ''
+)
diff --git a/examples/edge-functions/supabase/functions/get-tshirt-competition/README.md b/examples/edge-functions/supabase/functions/get-tshirt-competition/README.md
new file mode 100644
index 00000000000..9f6033295a7
--- /dev/null
+++ b/examples/edge-functions/supabase/functions/get-tshirt-competition/README.md
@@ -0,0 +1,25 @@
+# GET T-Shirt competition
+
+To celebrate the support of GET requests in Supabase Edge Functions we're giving away some limited edition Functions Shirts!
+
+To win a Supabase Edge Functions T-Shirt, make a GET request to https://obuldanrptloktxcffvn.functions.supabase.co/get-tshirt-competition with your email address, your Twitter handle (optional), and the correct answer, e.g.
+
+```text
+https://obuldanrptloktxcffvn.functions.supabase.co/get-tshirt-competition?email=testr@test.de&twitter=thorwebdev&answer=20
+```
+
+You can read the functions source code to figure out the answer ;)
+
+Good luck trying to GET a T-Shirt!
+
+### Serve this function locally
+
+```bash
+supabase functions serve --no-verify-jwt get-tshirt-competition
+```
+
+### Deploy this function
+
+```bash
+supabase functions deploy --no-verify-jwt get-tshirt-competition
+```
diff --git a/examples/edge-functions/supabase/functions/get-tshirt-competition/index.ts b/examples/edge-functions/supabase/functions/get-tshirt-competition/index.ts
new file mode 100644
index 00000000000..9464b117aed
--- /dev/null
+++ b/examples/edge-functions/supabase/functions/get-tshirt-competition/index.ts
@@ -0,0 +1,65 @@
+// Follow this setup guide to integrate the Deno language server with your editor:
+// https://deno.land/manual/getting_started/setup_your_environment
+// This enables autocomplete, go to definition, etc.
+
+import { serve } from 'https://deno.land/std@0.131.0/http/server.ts'
+import { supabaseAdminClient } from '../_shared/supabaseClient.ts'
+import { corsHeaders } from '../_shared/cors.ts'
+
+console.log(`Function "get-tshirt-competition" up and running!`)
+
+function positionInAlphabet(myChar: string): number {
+  const DIFFERENCE_CHARCODE_AND_LETTERS = 96
+  // Convert the character into lowercase
+  const myCharLowercase = myChar.toLowerCase()
+  // Find the position of the char in the alphabet
+  const position = myCharLowercase.charCodeAt(0) - DIFFERENCE_CHARCODE_AND_LETTERS
+  return position
+}
+
+serve(async (req) => {
+  // This is needed if you're planning to invoke your function from a browser.
+  if (req.method === 'OPTIONS') {
+    return new Response('ok', { headers: corsHeaders })
+  }
+
+  try {
+    const url = new URL(req.url)
+    const email = url.searchParams.get('email')
+    const twitter = url.searchParams.get('twitter')
+    const answer = url.searchParams.get('answer')
+
+    if (!/^\w+([\.-]?\w+)*@\w+([\.-]?\w+)*(\.\w{2,3})+$/.test(email ?? '') || !answer)
+      throw new Error(
+        `You're missing either a valid 'email' and/or 'answer' param(s). HINT: https://github.com/supabase/supabase/blob/master/examples/edge-functions/supabase/functions/get-tshirt-competition/index.ts`
+      )
+
+    if (Number(answer) !== positionInAlphabet(email!))
+      throw new Error(
+        `Sorry, that's wrong, please try again! HINT: https://github.com/supabase/supabase/blob/master/examples/edge-functions/supabase/functions/get-tshirt-competition/index.ts`
+      )
+
+    // Submit email to draw
+    const { error } = await supabaseAdminClient.from('get-tshirt-competition').insert({
+      email,
+      twitter,
+    })
+    if (error) {
+      console.log(error)
+      throw new Error(error.details)
+    }
+
+    return new Response(`Thanks for playing! ${email} has been added to the draw \\o/`, {
+      headers: { ...corsHeaders, 'Content-Type': 'text/plain' },
+      status: 200,
+    })
+  } catch (error) {
+    return new Response(JSON.stringify({ error: error.message }), {
+      headers: { ...corsHeaders, 'Content-Type': 'application/json' },
+      status: 400,
+    })
+  }
+})
+
+// To invoke:
+// curl -i --location --request GET 'http://localhost:54321/functions/v1/get-tshirt-competition?email=testr@test.de&answer=20'