Day 25 - A Python Web App without a Framework

codingforentrepreneurs · codingforentrepreneurs · commit d499b17e4c1a · 2020-07-09T13:39:30.000-07:00
diff --git a/tutorial-reference/Day 25/404.html b/tutorial-reference/Day 25/404.html
@@ -0,0 +1,11 @@
+<!doctype html>
+<html>
+
+<head>
+    <title>Pure Python Web App</title>
+</head>
+<body>
+    404. Page not found. {path}
+</body>
+
+</html>
diff --git a/tutorial-reference/Day 25/Pipfile b/tutorial-reference/Day 25/Pipfile
@@ -0,0 +1,12 @@
+[[source]]
+name = "pypi"
+url = "https://pypi.org/simple"
+verify_ssl = true
+
+[dev-packages]
+
+[packages]
+gunicorn = "*"
+
+[requires]
+python_version = "3.8"
diff --git a/tutorial-reference/Day 25/Pipfile.lock b/tutorial-reference/Day 25/Pipfile.lock
diff --git a/tutorial-reference/Day 25/contact.html b/tutorial-reference/Day 25/contact.html
@@ -0,0 +1,11 @@
+<!doctype html>
+<html>
+
+<head>
+    <title>Pure Python Web App</title>
+</head>
+<body>
+    <h1>Contact Us</h1>
+</body>
+
+</html>
diff --git a/tutorial-reference/Day 25/index.html b/tutorial-reference/Day 25/index.html
@@ -0,0 +1,11 @@
+<!doctype html>
+<html>
+
+<head>
+    <title>Pure Python Web App</title>
+</head>
+<body>
+    Hello World
+</body>
+
+</html>
diff --git a/tutorial-reference/Day 25/server.py b/tutorial-reference/Day 25/server.py
@@ -0,0 +1,39 @@
+# gunicorn
+
+def render_template(template_name='index.html', context={}):
+    html_str = ""
+    with open(template_name, 'r') as f:
+        html_str = f.read()
+        html_str = html_str.format(**context)
+    return html_str
+
+def home(environ):
+    return render_template(
+        template_name='index.html', 
+        context={}
+    )
+
+def contact_us(environ):
+    return render_template(
+        template_name='contact.html', 
+        context={}
+    )
+
+def app(environ, start_response):
+    path = environ.get("PATH_INFO")
+    if path.endswith("/"):
+        path = path[:-1]
+    if path == "": # index / root of the web app
+        data = home(environ)
+    elif path == "/contact":
+        data = contact_us(environ)
+    else:
+        data = render_template(template_name='404.html', context={"path": path})
+    data = data.encode("utf-8")
+    start_response(
+        f"200 OK", [
+            ("Content-Type", "text/html"),
+            ("Content-Length", str(len(data)))
+        ]
+    )
+    return iter([data])
