updated a few things

app.py

@@ -1,9 +1,19 @@
 import os
-from flask import Flask
-from flask import make_response
-from flask import request
+
+# import flask
+from flask import Flask, make_response, request
+
+# import pygments
+from pygments import highlight
+from pygments.lexers import (get_lexer_by_name, get_lexer_for_filename,
+                             get_lexer_for_mimetype, guess_lexer_for_filename,
+                             guess_lexer)
+from pygments.formatters import get_formatter_by_name
+
+# initialize flask
 app = Flask(__name__)
 
+# Routes
 @app.route('/')
 def hello_world():
     return 'Hello World!'
@@ -14,9 +24,23 @@ def api_root():
     resp.headers['Content-Type'] = 'application/json'
     return resp
 
-@app.route('/post', methods = ['POST'])
-def post_me():
-    return request.json['stuff']
+@app.route('/api/highlight', methods = ['POST'])
+def api_highlight():
+    if 'source' not in request.json:
+        return make_response(None, 422)
+
+    if 'lang' in request.json:
+        lexer = get_lexer_by_name(request.json['lang'])
+    elif 'filename' in request.json:
+        lexer = guess_lexer_for_filename(request.json['filename'],
+                                         request.json['source'])
+    elif 'mimetype' in request.json:
+        lexer = get_lexer_for_mimetype(request.json['mimetype'])
+    else:
+        lexer = guess_lexer(request.json['source'])
+
+    formatter = get_formatter_by_name('html')
+    return highlight(request.json['source'], lexer, formatter)
 
 
 if __name__ == '__main__':