In pyodide, it is not support the requests module so to fetch the data from api we used open_url and how can we use the api for post the Data using pyodide
How can I do HTTP POST requests on Pyodide
Update: Pyodide v0.21.2
It is currently impossible to use the requests since sockets are not available in Pyodide.
However, you can use JS Fetch API direct form Python code. To do this, you must import window object from js module. Here is a live demo:
(async () => { // enable await
// init pyodide
let pyodide = await loadPyodide();
// import window object
pyodide.runPython('from js import window')
// fetch json
let result = await pyodide.runPythonAsync("window.fetch('http://karay.me/truepyxel/test.json')")
// result is now a response object
console.log(result)
// convert response to json
let data = await result.json()
console.log(data)
alert(data.msg)
})() // call the function immediately<script src="https://cdn.jsdelivr.net/pyodide/v0.21.2/full/pyodide.js"></script>More details here.
Pyodide v0.15.0
let python_code = `
from js import window
def fetch():
window.fetch('http://karay.me/truepyxel/test.json').then(lambda resp: resp.json()).then(lambda jsoh: show_result(jsoh))
def show_result(data):
div = window.document.createElement('div')
#insert into body as a first child
window.document.body.prepend(div)
div.innerHTML=window.JSON.stringify(data)
`
// init environment
languagePluginLoader
// then run Python code
.then(() => pyodide.runPythonAsync(python_code));<!DOCTYPE html>
<html>
<head>
<script src="https://pyodide-cdn2.iodide.io/v0.15.0/full/pyodide.js"></script>
</head>
<body>
<button onclick='pyodide.globals.fetch()'>Fetch</button>
</body>
</html>The requests module is currently not supported in pyodide because it relies on sockets which are not implemented in the WebAssembly browser VM.
You can however, make POST calls using Web APIs in pyodide. Below is an example using XMLHttpRequest
from js import XMLHttpRequest, Blob
import json
data = {"a": 1}
req = XMLHttpRequest.new()
req.open("POST", "https://httpbin.org/anything", False)
blob = Blob.new([json.dumps(data)], {type : 'application/json'})
req.send(blob)
str(req.response)
In the future it's possible that some of the classical HTTP client modules might be patched to use Web APIs in pyodide (cf pyodide#140).
It's provided by Pyodide, you don't need to install it, it's available by default there. So if you use anything that uses Pyodide: PyScript, JupyterLite etc you will have it. If you use a different wasm build of Python then this module won't exist, and you will not be able to use it. –
Tabitha
Thanks @rth! Perhaps this question is too broad for a comment here, but if I want to test this code locally, how would I do that? I installed
pyodide with pip install pyodide-py, but that doesn't seem to allow me to import js. –
Ious Actually you should install pyodide >=v0.25.0a2, that and later version should just work with requests, so you would no longer need the explicitly import the js module for this functionality. About things not being quite identical with installing pyodide-py outside of the browser, yes that's expected and unfortunately a limitation of that apporach –
Tabitha
As already mentioned we cannot use requests, so you can use javascript fetch to perform the POST operation, the sample snippet will work with pydiode and pyscript (async format), this same code can be written in sync-fashion using add_done_callback
import asyncio
from js import console, fetch
async def post_data():
response = await fetch('http://example.com/test',{'method':'POST'})
json = await response.json()
console.log('json', json)
return json
await post_data()
Which module is that
js? I don't think it's this one pypi.org/project/javascript ? –
Ious Given this is in Pyodide, it's the one that enables you to use js from the global scope (ie in the browser/runtime). See here: pyodide.org/en/stable/usage/api/python-api.html –
Ellora
© 2022 - 2024 — McMap. All rights reserved.
jsmodule? It's not this one I think pypi.org/project/javascript? – Ious