Update GCP function example to new APIs (pulumi#270)

Author: joeduffy

gcp-ts-functions/README.md

@@ -2,30 +2,36 @@
 
 # GCP Functions
 
-An example Pulumi component that deploys a TypeScript function to Google Cloud Functions.
+An example of deploying an HTTP Google Cloud Function endpoint using TypeScript.
+
+## Prerequisites
+
+0. [Ensure you have the latest Node.js and NPM](https://nodejs.org/en/download/)
+2. [Install the Pulumi CLI](https://pulumi.io/quickstart/install.html)
+3. [Configure Pulumi to access your GCP account](https://pulumi.io/quickstart/gcp/setup.html)
 
 ## Running the App
 
-1.  Create a new stack:
+1.  Restore NPM dependencies:
 
     ```
-    $ pulumi stack init gcp-fn
+    $ npm install
     ```
 
-1.  Configure GCP project and region:
+2.  Create a new stack:
 
     ```
-    $ pulumi config set gcp:project <projectname> 
-    $ pulumi config set gcp:region <region>
+    $ pulumi stack init gcp-fn
     ```
 
-1.  Restore NPM dependencies:
+3.  Configure your GCP project and region:
 
     ```
-    $ npm install
+    $ pulumi config set gcp:project <projectname> 
+    $ pulumi config set gcp:region <region>
     ```
 
-1.  Run `pulumi up` to preview and deploy changes:
+4.  Run `pulumi up` to preview and deploy changes:
 
     ``` 
     $ pulumi up
@@ -39,12 +45,20 @@ An example Pulumi component that deploys a TypeScript function to Google Cloud F
     Update duration: 39.65130324s
     ```
 
-1.  Check the deployed function endpoint:
+5.  Check the deployed function endpoint:
 
     ```
     $ pulumi stack output url
     https://us-central1-pulumi-development.cloudfunctions.net/greeting-function-7f95447
     $ curl "$(pulumi stack output url)"
     Greetings from Google Cloud Functions!
+    ```
+
+6. Clean up your GCP and Pulumi resources:
+
+    ```
+    $ pulumi destroy
+    ...
+    $ pulumi stack rm
     ...
     ```

gcp-ts-functions/gcpFunction.ts

@@ -1,7 +1,7 @@
-import * as gcpFunction from "./gcpFunction";
+import * as gcp from "@pulumi/gcp";
 
-let greetingFunction = new gcpFunction.HttpFunction("greeting", (req, res) => {
+let greeting = new gcp.cloudfunctions.HttpCallbackFunction("greeting", (req, res) => {
     res.send(`Greetings from ${req.body.name || 'Google Cloud Functions'}!`);
 });
 
-export let url = greetingFunction.httpsTriggerUrl;
+export let url = greeting.httpsTriggerUrl;