From 530da8b31fc058e7510e868a9996e91c85accf6b Mon Sep 17 00:00:00 2001
From: Brandon Keepers <bkeepers@github.com>
Date: Mon, 27 Mar 2017 22:13:17 -0500
Subject: [PATCH 1/3] Add cache and cache installation token

---
 index.js     |  8 +++++++-
 lib/robot.js | 15 ++++++++++++---
 package.json |  2 ++
 3 files changed, 21 insertions(+), 4 deletions(-)

diff --git a/index.js b/index.js
index 548d5907..d4528493 100644
--- a/index.js
+++ b/index.js
@@ -1,9 +1,15 @@
+const cacheManager = require('cache-manager');
 const createWebhook = require('github-webhook-handler');
 const createIntegration = require('github-integration');
 const createRobot = require('./lib/robot');
 const createServer = require('./lib/server');
 
 module.exports = options => {
+  const cache = cacheManager.caching({
+    store: 'memory',
+    ttl: 60 * 60 // 1 hour
+  });
+
   const webhook = createWebhook({path: '/', secret: options.secret});
   const integration = createIntegration({
     id: options.id,
@@ -11,7 +17,7 @@ module.exports = options => {
     debug: process.env.LOG_LEVEL === 'trace'
   });
   const server = createServer(webhook);
-  const robot = createRobot(integration, webhook);
+  const robot = createRobot(integration, webhook, cache);
 
   // Show trace for any unhandled rejections
   process.on('unhandledRejection', reason => {
diff --git a/lib/robot.js b/lib/robot.js
index aaeb1b8a..88e489d4 100644
--- a/lib/robot.js
+++ b/lib/robot.js
@@ -1,5 +1,6 @@
 const bunyan = require('bunyan');
 const bunyanFormat = require('bunyan-format');
+const GitHubApi = require('github');
 const Context = require('./context');
 
 const logger = bunyan.createLogger({
@@ -9,9 +10,10 @@ const logger = bunyan.createLogger({
 });
 
 class Robot {
-  constructor(integration, webhook) {
+  constructor(integration, webhook, cache) {
     this.integration = integration;
     this.webhook = webhook;
+    this.cache = cache;
   }
 
   on(event, callback) {
@@ -24,8 +26,15 @@ class Robot {
     });
   }
 
-  auth(id) {
-    return this.integration.asInstallation(id);
+  async auth(id) {
+    const token = await this.cache.wrap(`integration:${id}:token`, () => {
+      this.log.info(`creating token for installation ${id}`);
+      return this.integration.createToken(id);
+    }, {ttl: 60 * 60});
+
+    const github = new GitHubApi({debug: process.env.LOG_LEVEL === 'trace'});
+    github.authenticate({type: 'token', token: token.token});
+    return github;
   }
 
   log(...args) {
diff --git a/package.json b/package.json
index 39eedb0c..bf1a7be9 100644
--- a/package.json
+++ b/package.json
@@ -16,8 +16,10 @@
   "dependencies": {
     "bunyan": "^1.8.5",
     "bunyan-format": "^0.2.1",
+    "cache-manager": "^2.4.0",
     "commander": "^2.9.0",
     "dotenv": "~4.0.0",
+    "github": "^8.1.0",
     "github-integration": "^1.0.0",
     "github-webhook-handler": "^0.6.0",
     "pkg-conf": "^2.0.0",

From 97c7180d870095aba4d6aa545e05e6c43e78ffe0 Mon Sep 17 00:00:00 2001
From: Brandon Keepers <bkeepers@github.com>
Date: Mon, 27 Mar 2017 22:20:52 -0500
Subject: [PATCH 2/3] Fix travis version

---
 .travis.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.travis.yml b/.travis.yml
index 76632d7d..f00bf4ec 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,7 +1,7 @@
 sudo: false
 language: node_js
 node_js:
-  - "6"
+  - "7.7.1"
 notifications:
   disabled: true
 env:

From 8291867879b8c72e4b945f26f8a2375b2f9d2a6e Mon Sep 17 00:00:00 2001
From: Brandon Keepers <bkeepers@github.com>
Date: Mon, 27 Mar 2017 22:22:59 -0500
Subject: [PATCH 3/3] Remove env variables

---
 .travis.yml | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/.travis.yml b/.travis.yml
index f00bf4ec..effdb13a 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -4,7 +4,3 @@ node_js:
   - "7.7.1"
 notifications:
   disabled: true
-env:
-  - PRIVATE_KEY=ssssshhh
-  - INTEGRATION_ID=1
-  - WEBHOOK_SECRET=test