Dynamic binary example

aws-node-dynamic-binary-via-http-endpoint/handler.js

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+'use strict';
+
+const fs = require('fs');
+
+module.exports.image = (event, context, callback) => {
+  const imageContent = fs.readFileSync('./block.png');
+  // const response = {
+  //   body: imageContent.toString('base64'),
+  //   isBase64Encoded: true,
+  //   statusCode: 200,
+  //   headers: {
+  //     'Content-Type': 'image/png',
+  //   },
+  // };
+
+  const response = imageContent.toString('base64');
+
+  // callback is sending HTML back
+  callback(null, response);
+};

aws-node-dynamic-binary-via-http-endpoint/package.json

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+{
+  "name": "serverless-dynamic-binary-via-http-endpoint",
+  "version": "1.0.0",
+  "description": "",
+  "author": "",
+  "license": "MIT",
+  "dependencies": {
+    "pngjs": "^3.0.0"
+  }
+}

aws-node-dynamic-binary-via-http-endpoint/serverless.yml

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+service: dynamic-binary-via-http-endpoint
+frameworkVersion: ">=1.1.0 <2.0.0"
+
+provider:
+  name: aws
+  runtime: nodejs4.3
+
+functions:
+  image:
+    handler: handler.image
+    events:
+      - http:
+          method: get
+          path: image
+          integration: lambda
+          request:
+            passThrough: WHEN_NO_TEMPLATES
+            template:
+              image/png: '{}'