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Basic proxy that adds your CARTO API key to any requests and forwards them to CARTO
import requests
from flask import Flask, request
BASE_URL = "https://my_account.carto.com" # Or CDN, or on-prem
API_KEY = "my_api_key"
VERIFY_SSL_CERT = True # Set to False if you don't want the proxy to verify CARTO's cert
app = Flask(__name__)
@app.route('/', defaults={'path': ''})
@app.route('/<path:path>')
def add_api_key(path):
# Add API key to every forwarded request
args = dict(request.args)
args["api_key"] = API_KEY
# Forward request to CARTO
response = requests.get(BASE_URL + request.path, params=args, verify=VERIFY_SSL_CERT)
# We want to forward CARTO's response headers.
# However, response from CARTO may come in chunks and it's much easier forward the whole thing
try:
del(response.headers["Content-Encoding"])
except KeyError:
pass
try:
del(response.headers["Transfer-Encoding"])
except KeyError:
pass
# Send CARTO's response (as a whole) back to the browser
return (response.content, response.status_code, response.headers.items())
if __name__ == "__main__":
# Client code should point to "https://localhost:5000/whatever" (or equivalent) instead of "https://my_account.carto.com/whatever"
# Using a self-signed cert here
# In order to use real certs, do app.run(ssl_context=('path.to/server.crt', 'path.to/server.key'))
app.run(ssl_context="adhoc")
Flask
requests
pyOpenSSL
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