update curl examples + add error handling for missing env details

README.md

@@ -13,7 +13,7 @@ Have an idea for a new implementation? Please [raise an issue](//github.com/Goog
 
 #### Insert a todo
 ```sh
-$ curl -X POST -d '{text: "do this"}' http://localhost:8080/todos
+$ curl -X POST -H "Content-Type: application/json" -d '{"text": "do this"}' http://localhost:8080/todos
 ```
 
 #### Get a todo
@@ -23,7 +23,7 @@ $ curl -X GET http://localhost:8080/todos/{{todo id}}
 
 #### Mark a todo as done
 ```sh
-$ curl -X PUT -d '{text: "do this", "done": true}' http://localhost:8080/todos/{{todo id}}
+$ curl -X PUT -H "Content-Type: application/json" -d '{"text": "do this", "done": true}' http://localhost:8080/todos/{{todo id}}
 ```
 
 #### Delete a todo

apps/cli/cli.js

@@ -158,7 +158,7 @@ function displayTodosAndDelete() {
           if (++deleted === answers.completed.length) {
             init();
           }
-        })
+        });
       });
     });
   });

server/server.js

@@ -49,7 +49,7 @@ app.post('/todos', function(req, res) {
 });
 
 app.put('/todos/:id', function(req, res) {
-  todos.update(req.param('id'), req.body.data, _handleResponse(res));
+  todos.update(req.param('id'), req.body, _handleResponse(res));
 });
 
 app.delete('/todos', function(req, res) {

server/todos.js

@@ -1,7 +1,17 @@
 'use strict';
 
+var projectId = process.env.GAE_LONG_APP_ID || process.env.DATASET_ID;
+
+if (!projectId) {
+  var MISSING_ID = [
+    'Cannot find your project ID. Please set an environment variable named ',
+    '"DATASET_ID", holding the ID of your project.'
+  ].join('');
+  throw new Error(MISSING_ID);
+}
+
 var gcloud = require('gcloud')({
-  projectId: process.env.GAE_LONG_APP_ID || process.env.DATASET_ID,
+  projectId: projectId,
   credentials: require('../key.json')
 });