Add flask-cors update README, this fixes #6 (#7)

README.md

@@ -8,19 +8,27 @@
 
 ### Run Development Server
 
-- Create and activate environment
-  ```
+- Create environment (This is only needed for the first time)
+
+  ```sh
   python3 -m venv venv
-  . venv/bin/activate
   ```
 
-- Install Flask locally (if you haven't)
+- Activate environment
+
+  ```sh
+  . venv/bin/activate
   ```
-  pip install Flask
+
+- Install Flask and other dependencies locally (if you haven't)
+
+  ```sh
+  pip install -r requirements.txt
   ```
 
 - Run
-  ```
+
+  ```sh
   env FLASK_APP=main.py flask run
   ```
 
@@ -33,4 +41,3 @@ Before deploy to gcloud, you have to install gcloud sdk. ([Install guide](https:
 ```
 gcloud deploy
 ```
-

main.py

@@ -18,6 +18,7 @@
 
 from flask import Flask
 from flask import jsonify
+from flask_cors import CORS
 
 # test data
 dummy0 = {
@@ -53,6 +54,7 @@
 photos = [dummy0, dummy1, dummy2]
 
 app = Flask(__name__)
+CORS(app)
 app.config["JSON_AS_ASCII"] = False
 
 @app.route('/')

requirements.txt

@@ -1,3 +1,4 @@
-Flask==0.12.3
+Flask>=1.0.0
+flask-cors>=3.0.8
 gunicorn==19.7.1