我正在创建一个名为AnbimaApiClient
的类,旨在促进Anbima API的数据请求(API文档链接:https://developers.anbima.com.br/en/autenticacao/)。我成功地实现了一个名为_get_new_anbima_token
的方法,该方法为api调用生成一个访问令牌。问题出在get_fidc_method
。此功能的目标是根据unioque识别码(称为CNPJ)提取巴西对冲基金的数据。(以下是API如何提取对冲基金数据的文档链接:https://developers.anbima.com.br/en/apis-de-fundos-2/#submenu-titles-2)
import requests as r
from requests_oauthlib import OAuth2Session
from oauthlib.oauth2 import BackendApplicationClient
import os, json, oauthlib
class AnbimaApiClient:
__client_id = "client_id"
__client_secret = "client_secret"
__client_access_token = 'client_access_token'
__token_url = 'https://api.anbima.com.br/oauth/access-token' # token generation
__fidc_url = 'https://api.anbima.com.br/feed/fundos/v1/fundos-estruturados' # url that im trying to
# pull data from
def __init__(self):
client = BackendApplicationClient(client_id=self.__client_id)
self.oauth = OAuth2Session(client=client)
self.session = r.Session()
# setting session headers
self.session.headers.update({
'Content-Type': 'application/json',
"Authorization": f"Basic {self.__access_token}"
})
def _get_new_anbima_token(self, only_token=True):
# NOTE: This is working perfectly
token = self.oauth.fetch_token(token_url=self.__token_url,
client_id=self.__client_id,
client_secret=self.__client_secret)
if only_token:
return token['access_token']
return token
def get_fidc_data(self, field, value):
params = {
field: value
}
response = self.session.get(self.__fidc_url, params=params)
return response.text
def main():
"""
A simple test of the get_fidc_data method
"""
anbima_client = AnbimaApiClient()
data = anbima_client.get_fidc_data('cnpj_fundo', '29.494.037/0001-03')
print(data)
if __name__ == '__main__':
main()
每次运行此脚本时,这都是response.text
的输出:
Could not find a required APP in the request, identified by HEADER client_id.
我知道API遵循这个身份验证过程,因为它是API文档中写的:“身份验证类型必须是‘基本身份验证’,如:https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Authorization."我试着在标题中以auth的形式传递客户端id,但仍然没有任何效果。你们能帮我吗?我这里出了什么问题?标题中有什么?欢迎提供任何帮助,谢谢大家的耐心
根据Anbima的网站,认证应采用base64:
“根据em base 64中的信息,通过campo授权进行编码。AASM,PARA GEAR O标题授权做PAR clitTydID=AC2YAAC23 e秘密=1BHS45 TT,POR示例,deve ser gerada A BASE64 DA串AC2YAAC23:1BHS45 TT,QueRealTaulaNa CHAVY YUMYYWHZIZOJAFFAFM0NVRU。Desta forma,o header ficaria:“授权”:“基本Yumeywfhyzizojfiafm0nvru”
尝试使用base64库:
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