Update packages and lambda.

Author: alexmacarthur

.gitignore

@@ -1,5 +1,4 @@
 src/bundle.js
-lambda/*
 .netlify
 node_modules
 dist

lambda/package-lock.json

@@ -0,0 +1,14 @@
+{
+  "name": "lambda",
+  "version": "1.0.0",
+  "description": "",
+  "main": "purchase.js",
+  "scripts": {
+    "test": "echo \"Error: no test specified\" && exit 1"
+  },
+  "author": "",
+  "license": "ISC",
+  "dependencies": {
+    "stripe": "^6.30.0"
+  }
+}

lambda/package.json

@@ -0,0 +1,77 @@
+require("dotenv").config();
+
+const stripe = require("stripe")(process.env.STRIPE_SECRET_KEY);
+
+const statusCode = 200;
+const headers = {
+  "Access-Control-Allow-Origin": "*",
+  "Access-Control-Allow-Headers": "Content-Type"
+};
+
+exports.handler = async function(event, context, callback) {
+  // We only care to do anything if this is our POST request.
+  if (event.httpMethod !== "POST") {
+    return {
+      statusCode,
+      headers,
+      body: "This was not a POST request!"
+    };
+  }
+
+  // Parse the body contents into an object.
+  const data = JSON.parse(event.body);
+
+  // Make sure we have all required data. Otherwise, get outta here.
+  if (!data.token || !data.amount || !data.idempotency_key) {
+    const message = "Required information is missing!";
+
+    console.error(message);
+
+    return {
+      statusCode,
+      headers,
+      body: JSON.stringify({
+        status: "failed",
+        message
+      })
+    };
+  }
+
+  try {
+    const charge = await stripe.charges.create(
+      {
+        currency: "usd",
+        amount: data.amount,
+        source: data.token.id,
+        receipt_email: data.token.email,
+        description: `charge for a widget`
+      },
+      {
+        idempotency_key: data.idempotency_key
+      }
+    );
+  } catch (e) {
+    console.error(e.message);
+
+    return {
+      statusCode: 424,
+      headers,
+      body: JSON.stringify({
+        status: "failed",
+        message: e.message
+      })
+    };
+  }
+
+  const status =
+    charge === null || charge.status !== "succeeded" ? "failed" : charge.status;
+
+  return {
+    statusCode,
+    headers,
+    body: JSON.stringify({
+      status,
+      message: "Charge successfully created!"
+    })
+  };
+};