Twig is a frontend and backend web framework utilizing the python socket module to serve http requests.
Project description
Twig 0.3.2
Twig is a backend web framework for python utilizing the socket module to handle http requests and serve responses.
Changelog
0.3.0
-
Added static paths and folders functions.
-
Added element class.
-
Added React like component classes.
0.2.0
-
Added
set_all_routesfunction -
Fixed inconsistent request handling
-
Improved documentation
REST API example
This example shows how to make a basic REST API with Twig that adds 2 numbers together, and an example use case for the component system. It includes all the current functionalities of Twig.
Example main.py:
import random
import time
from typing import Dict
from TwigWeb.backend import Server, ContentType, Response as res
from componenttest import Card, Dashboard
# SERVER CONSTRUCTOR EXAMPLE
app = Server("", verbose=False, open_root=False, debug=True)
# ---PARAMETERS--- #
#
# verbose will show the full request each time when True.
#
# open_root will open the index of the site in a web browser every time the server runs when True.
#
# debug will show any request errors when True.
#
# ---------------- #
# ADD STATIC FILE EXAMPLE
app.add_static("test.jpg")
# SET STATIC FILES (this overwrites any static files you've added before)
app.set_static({"test.jpg"})
# ADD STATIC FOLDER EXAMPLE
app.add_static_folder("test")
# SET STATIC FOLDERS (this overwrites any static folders you've added before)
app.set_static_folders({"test"})
# ---ABOUT--- #
#
# Static files are files that can be accessed by clients without declaring a route
#function. Any file that is within a static folder is also treated as a static file.
#
# ----------- #
# COMPONENT EXAMPLE (See component.py example)
def card(headers: Dict[str, str]):
return res.Response(f'''<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Home</title>
</head>
<body>
{Dashboard(cardlist = [
{
"name": "William",
"date": time.strftime("%H:%M:%S", time.localtime()),
"title": "Component test",
"content": f"""This is a test of the component system.{
Card(
name = "Also William",
date = time.strftime("%H:%M:%S", time.localtime()),
title = "Nested Component",
content = "This is a test of nested components."
)
}"""
},
{
"name": "Jeff",
"date": time.strftime("%H:%M:%S", time.localtime()),
"title": "Jeff's First Post",
"content": "Hi my name is Jeff and this is my first post!"
}
])}
</body>
</html>
''', ContentType.html)
# SET ALL ROUTES EXAMPLE
app.set_all_routes({
"card": card
})
# ---ABOUT--- #
# this overwrites all routes in the app with new routes. This is so you can
#have all your routes in a separate file from their functions if you wanted.
# ----------- #
# ROUTE DECORATOR EXAMPLES
# ---ABOUT--- #
# Creates a path in the server for that function. The path is whatever is
#supplied to the decorator as an argument
#
# Important!!!: every route function must include an argument for headers
#even if route function does not use any headers.
# ----------- #
# json example
@app.route("apiexample/json")
def test_json(headers: Dict[str, str]):
return res.Response(f"[{random.randint(0,100)},{random.randint(0,100)},{random.randint(0,100)}]", ContentType.json)
# plaintext example
@app.route("apiexample/plain")
def test_plain(headers: Dict[str, str]):
return res.Response("Lorem ipsum dolor sit amet, consectetur adipiscing elit.", ContentType.plain)
# css example
@app.route("apiexample/css")
def test_css(headers: Dict[str, str]):
return res.Response(res.read("index.css"), ContentType.css)
# wasm example
@app.route("apiexample/wasm")
def test_css(headers: Dict[str, str]):
return res.Response(res.read("example.wasm"), ContentType.wasm)
# headers example
@app.route("apiexample")
def test_headers(headers: Dict[str, str]):
sum = int(headers["num-1"]) + int(headers["num-2"])
return res.Response(f'{{"result":{sum}}}', ContentType.json)
# html example
@app.route("")
def index(headers: Dict[str, str]):
return res.Response(res.read("index.html"))
# MANUALLY SET ROUTE EXAMPLE
def manual_route(headers: Dict[str, str]):
return res.Response('{"message":"Hello"}', ContentType.json)
app.set_route("manual", manual_route)
# ---ABOUT--- #
# this does the same thing as the @app.route() decorator and can be
#used to set routes for functions in external files.
# ----------- #
# Running the server
app.run()
Example index.html:
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Home</title>
</head>
<body>
<input type="number" id="num1" value="0">
+
<input type="number" id="num2" value="0">
=
<span id="Content">
</span>
<div><button id="solve">solve</button></div>
<script>
const CONTENT_DIV = document.getElementById("Content")
document.getElementById("solve").addEventListener("click", async_solve)
async function async_solve(){
let num1 = parseInt(document.getElementById("num1").value)
let num2 = parseInt(document.getElementById("num2").value)
const res = await fetch("/apiexample", {method:'POST', headers:{
"num-1":num1,
"num-2":num2
}})
const res_json = await res.json()
CONTENT_DIV.innerText = res_json.result
}
async_solve()
</script>
</body>
</html>
Example component.py:
from TwigWeb.frontend import Component, Element as E
class Card(Component):
"""Components are classes that inherit from the Component class."""
def hydrate(self):
name = self.props["name"]
date = self.props["date"]
title = self.props["title"]
content = self.props["content"]
return E("div", {
"style": "background-color: gray; margin: 5px; border: solid; border-radius: 10px;",
"id":f"{name}"
}, [
E("div", {"style": "display: flex; justify-content: space-between;"}, [
E("div", {"style": "font-size: 20px; padding: 5px;"}, [f"{name}"]),
E("div", {"style": "font-size: 15px; padding: 5px;"}, [f"{date}"]),
]),
E("h3", {"style": "text-align: center;"}, [f"{title}"]),
E("div", {"style": "padding: 10px; font-style: italic;"}, [f"{content}"]),
]).render()
class Dashboard(Component):
"""The Dashboard component takes in a list of dictionaries with all of the cards data
and constructs cards with that data inside of the Dashboard component. Comprehension
can be used to create a workflow similar to React.js."""
def hydrate(self):
return E("div", {"style": "background-color: black; color: white; padding: 10px;"}, [
E("h1", {}, ["DASHBOARD"]),
E("div", {}, [f"""{Card(
name = card["name"],
date = card["date"],
title = card["title"],
content = card["content"]
)}""" for ind, card in enumerate(self.props["cardlist"])])
]).render()
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