| url = f'https://api.ibkr.com/v1/api/oauth/access_token' |
| oauth_params = { |
| "oauth_callback":callback, |
| "oauth_consumer_key": consumer_key, |
| "oauth_nonce": hex(random.getrandbits(128))[2:], |
| "oauth_signature_method": "RSA-SHA256", |
| "oauth_timestamp": str(int(datetime.now().timestamp())), |
| "oauth_token": rToken, |
| "oauth_verifier": vToken, |
| } |
| params_string = "&".join([f"{k}={v}" for k, v in sorted(oauth_params.items())]) |
|
| # Base string successfully created |
| base_string = f"POST&{quote_plus(url)}&{quote(params_string)}" |
|
| # Base string should then signed with the private key in RSA-SHA256 |
| encoded_base_string = base_string.encode("utf-8") |
| sha256_hash = SHA256.new(data=encoded_base_string) |
| bytes_pkcs115_signature = PKCS1_v1_5_Signature.new( |
| rsa_key=signature_key |
| ).sign(msg_hash=sha256_hash) |
| b64_str_pkcs115_signature = base64.b64encode(bytes_pkcs115_signature).decode("utf-8") |
|
| # Establish the authorization header |
| oauth_params["oauth_signature"] = quote_plus(b64_str_pkcs115_signature) |
| oauth_params["realm"] = realm |
| oauth_header = "OAuth " + ", ".join([f'{k}="{v}"' for k, v in sorted(oauth_params.items())]) |
| headers = {"authorization": oauth_header} |
| headers["User-Agent"] = "python/3.11" |
|
| # Send the request and save the tokens to variables |
| atoken_request = requests.post(url=url, headers=headers) |
| aToken = atoken_request.json()["oauth_token"] |
| aToken_secret = atoken_request.json()["oauth_token_secret"] |
