Python PycURL

/via: https://www.rapidseedbox.com/blog/python-curl

• requests: 1.6 Making life easier with the requests module

• PycURL es un intefaz python para interactuar con cURL (más completa/compleja que requests)

• sudo apt install libcurl4-openssl-dev libssl-dev

• pip install pycurl

• # Basic Commands with Requests
   
  import requests
   
  get_response = requests.get('https://sampleurl.com')
  print(get_response.text)

• # POST Request with Requests
   
  import requests
   
  payload = {'param': 'value'}
  post_response = requests.post('https://sampleurl.com', data=payload)
  print(post_response.text)

• import requests
   
  try:
  get_response = requests.get('https://example.com')
  get_response.raise_for_status()
  print(get_response.text)
   
  except requests.exceptions.HTTPError as http_err:
  print(f'HTTP error occurred: {http_err}')
   
  except Exception as err:
  print(f'Other error occurred: {err}')

• # GET Request with PyURL
   
  from pycurl import Curl
  from io import BytesIO
   
  curl_obj = Curl()
  response_buffer = BytesIO()
  curl_obj.setopt(curl_obj.URL, 'https://sampleurl.com')
  curl_obj.setopt(curl_obj.WRITEDATA, response_buffer)
  curl_obj.perform()
  curl_obj.close()
   
  response_body = response_buffer.getvalue().decode('utf-8')
  print(response_body)

• # POST Request with PycURL
   
  from pycurl import Curl
  from io import BytesIO
  from urllib.parse import urlencode
   
  curl_obj = Curl()
  response_buffer = BytesIO()
  payload = {'param': 'value'}
  encoded_payload = urlencode(payload)
  curl_obj.setopt(curl_obj.URL, 'https://sampleurl.com')
  curl_obj.setopt(curl_obj.POSTFIELDS, encoded_payload)
  curl_obj.setopt(curl_obj.WRITEDATA, response_buffer)
  curl_obj.perform()
  curl_obj.close()
   
  response_body = response_buffer.getvalue().decode('utf-8')
  print(response_body)

• # Handling Responses with PycURL
   
  from pycurl import Curl
  from io import BytesIO
   
  curl_obj = Curl()
  response_buffer = BytesIO()
  curl_obj.setopt(curl_obj.URL, 'https://sampleurl.com')
  curl_obj.setopt(curl_obj.WRITEDATA, response_buffer)
  curl_obj.perform()
  http_code = curl_obj.getinfo(curl_obj.RESPONSE_CODE)
  curl_obj.close()
   
  if http_code == 200:
  print("Success:", response_buffer.getvalue().decode('utf-8'))
  else:
  print("Error:", http_code)

• Enviando JSON:

  import requests
   
  payload = {'param': 'value'}
  post_response = requests.post('https://sampleurl.com', json=payload)
  print(post_response.text)

• Enviando cabeceras:

  import requests
   
  headers = {
  'User-Agent': 'CustomUserAgent',
  'Accept': 'application/json'
  }
  get_response = requests.get('https://sampleurl.com', headers=headers)
  print(get_response.text)

• Enviando fichero:

  import requests
   
  files = {'file': open('path/to/your/file.txt', 'rb')}
  post_response = requests.post('https://sampleurl.com/upload', files=files)
  print(post_response.text)

• Recibiendo fichero:

  import requests
   
  files = {'file': open('path/to/your/file.txt', 'rb')}
  post_response = requests.post('https://sampleurl.com/upload', files=files)
  print(post_response.text)

• Enviando JSON:

  from pycurl import Curl
  from io import BytesIO
  import json
   
  curl_obj = Curl()
  response_buffer = BytesIO()
  payload = {'param': 'value'}
  postfields = json.dumps(payload)
  curl_obj.setopt(curl_obj.URL, 'https://sampleurl.com')
  curl_obj.setopt(curl_obj.POSTFIELDS, postfields)
  curl_obj.setopt(curl_obj.HTTPHEADER, ['Content-Type: application/json'])
  curl_obj.setopt(curl_obj.WRITEDATA, response_buffer)
  curl_obj.perform()
  curl_obj.close()
  response_body = response_buffer.getvalue().decode('utf-8')
  print(response_body)

• Enviando cabeceras:

  from pycurl import Curl
  from io import BytesIO
   
  curl_obj = Curl()
  response_buffer = BytesIO()
  curl_obj.setopt(curl_obj.URL, 'https://sampleurl.com')
  curl_obj.setopt(curl_obj.HTTPHEADER, ['User-Agent: CustomUserAgent', 'Accept: application/json'])
  curl_obj.setopt(curl_obj.WRITEDATA, response_buffer)
  curl_obj.perform()
  curl_obj.close()
  response_body = response_buffer.getvalue().decode('utf-8')
  print(response_body)

• Enviando fichero:

  from pycurl import Curl
   
  curl_obj = Curl()
  curl_obj.setopt(curl_obj.URL, 'https://sampleurl.com/upload')
  curl_obj.setopt(curl_obj.HTTPPOST, [('file', (curl_obj.FORM_FILE, 'path/to/your/file.txt'))])
  curl_obj.perform()
  curl_obj.close()

• Recibiendo fichero:

  from pycurl import Curl
  from io import BytesIO
   
  curl_obj = Curl()
  response_buffer = BytesIO()
  curl_obj.setopt(curl_obj.URL, 'https://sampleurl.com/file.txt')
  curl_obj.setopt(curl_obj.WRITEDATA, response_buffer)
  curl_obj.perform()
  curl_obj.close()
   
  with open('downloaded_file.txt', 'wb') as f:
  f.write(response_buffer.getvalue())

• problemas con certificados: https://pypi.org/project/certifi/