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https://github.com/jczic/MicroWebCli

A micro HTTP Web client for MicroPython (used on Pycom modules & ESP32)
https://github.com/jczic/MicroWebCli

authentication download esp32 files hc2 http https json lopy micropython pycom redirection request socks5 ssl web-client wipy

Last synced: 3 months ago
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A micro HTTP Web client for MicroPython (used on Pycom modules & ESP32)

Host: GitHub
URL: https://github.com/jczic/MicroWebCli
Owner: jczic
License: mit
Created: 2017-10-09T03:14:25.000Z (about 7 years ago)
Default Branch: master
Last Pushed: 2020-12-12T20:08:52.000Z (almost 4 years ago)
Last Synced: 2024-04-29T11:33:46.525Z (6 months ago)
Topics: authentication, download, esp32, files, hc2, http, https, json, lopy, micropython, pycom, redirection, request, socks5, ssl, web-client, wipy
Language: Python
Homepage: https://microwebcli.hc2.fr
Size: 76.2 KB
Stars: 51
Watchers: 4
Forks: 15
Open Issues: 7
Metadata Files:
- Readme: README.md
- License: LICENSE.md

Awesome Lists containing this project

awesome-micropython - MicroWebCli - A micro HTTP web client for MicroPython (used on Pycom modules & ESP32). (Libraries / Communications)

README

        ## MicroWebCli is a micro HTTP Web client for MicroPython (used on ESP32 and [Pycom](http://www.pycom.io) modules)

![HC²](hc2.png "HC²")

Very easy to integrate and very light with only one file :

- `"microWebCli.py"`

Simple but effective :

- Use it to requesting fastly HTTP endpoints

- Supports URL parts and modifiable query string parameters

- Supports secured connections *SSL/TLS over HTTP* (https)

- Supports SOCKS5 server (without authentication)

- Supports authentications *HTTP Basic* and *Bearer Token*

- Supports large request and response datas

- Supports form-urlencoded datas on request

- Supports json objects on request and response

- Coulds save to a file the response content of any request

- Adds fast methods to directly GET, POST, JSON and downloads

- Automatically bounces (fast methods) on HTTP(S) redirections (ressources moved)

### Using *microWebCli* fast methods (statics, without classes) :

| Name  | Function |

| - | - |

| Makes a GET request | `MicroWebCli.GETRequest(url, queryParams=None, auth=None, connTimeoutSec=None)` |

| Makes a POST request | `MicroWebCli.POSTRequest(url, formData={}, auth=None, connTimeoutSec=None)` |

| Makes a JSON GET/POST request | `MicroWebCli.JSONRequest(url, o=None, auth=None, connTimeoutSec=None)` |

| Save response of a GET request to file | `MicroWebCli.FileRequest(url, filepath, progressCallback=None, auth=None, connTimeoutSec=None)` |

**`Note` : All fast methods automatically bounces on HTTP(S) redirections**

**`Warning` : Entire content of the response is allocated in memory with GETRequest, POSTRequest and JSONRequest**

### Fast methods usage example :

```python

from microWebCli import MicroWebCli

contentBytes = MicroWebCli.GETRequest('http://my-web-site.io/test.html', { 'pet':'cat' })

print(contentBytes)

contentBytes = MicroWebCli.POSTRequest('http://my-web-site.io/post.php', { 'id':12345 })

print(contentBytes)

auth   = MicroWebCli.AuthBasic('toto', 'blah123')

result = MicroWebCli.JSONRequest('http://my-web-site.io/my-api/user/12', auth=auth)

print('User name is %s %s' % (result.firstname, result.lastname))

def progressCallback(microWebCli, progressSize, totalSize) :

  if totalSize :

    print('Progress: %d bytes of %d downloaded...' % (progressSize, totalSize))

  else :

    print('Progress: %d bytes downloaded...' % progressSize)

filename    = '/flash/test.pdf'

contentType = MicroWebCli.FileRequest('http://my-web-site.io/test.pdf', filename, progressCallback)

print('File of content type "%s" was saved to "%s"' % (contentType, filename))

```

### Using *microWebCli* authentication classes :

| Authentication  | Class constructor |

| - | - |

| Basic HTTP | `auth = MicroWebCli.AuthBasic(user, password)` |

| Bearer Token | `auth = MicroWebCli.AuthToken(token)` |

### Using *microWebCli* main class :

| Name  | Function |

| - | - |

| Constructor | `wCli = MicroWebCli(url='', method='GET', auth=None, connTimeoutSec=None)` |

| Opens HTTP request | `wCli.OpenRequest(data=None, contentType=None, contentLength=None)` |

| Opens HTTP form-urlencoded request | `wCli.OpenRequestFormData(formData={})` |

| Opens HTTP json object request | `wCli.OpenRequestJSONData(o=None)` |

| Writes binary data to opened request | `wCli.RequestWriteData(data)` |

| Gets response class for opened request | `wCli.GetResponse()` |

| Checks if no request is opened | `wCli.IsClosed()` |

| Closes an opened request | `wCli.Close()` |

| Name  | Property |

| - | - |

| Gets or sets the connection timeout in secondes | `wCli.ConnTimeoutSec` |

| Gets or sets the Web method verb | `wCli.Method` |

| Gets or sets the complete Web URL | `wCli.URL` |

| Gets or sets the Web proto (http/https) | `wCli.Proto` |

| Gets or sets the Web host | `wCli.Host` |

| Gets or sets the Web port number | `wCli.Port` |

| Gets or sets the Web path part | `wCli.Path` |

| Gets or sets the Web complete query string | `wCli.QueryString` |

| Gets or sets the dict query parameters | `wCli.QueryParams` |

| Gets or sets the dict headers | `wCli.Headers` |

| Gets or sets the authentication class | `wCli.Auth` |

| Gets or sets a SOCKS5 server (tuple of host and port) | `wCli.Socks5Addr` |

### Using *microWebCli* response class :

| Name  | Function |

| - | - |

| Gets the client microWebCli class | `resp.GetClient()` |

| Gets the HTTP server address  | `resp.GetAddr()` |

| Gets the HTTP server IP address | `resp.GetIPAddr()` |

| Gets the HTTP server port number | `resp.GetPort()` |

| Gets the HTTP server version | `resp.GetHTTPVersion()` |

| Gets the response status code | `resp.GetStatusCode()` |

| Gets the response status message | `resp.GetStatusMessage()` |

| Checks if it is a success response | `resp.IsSuccess()` |

| Checks if it is a location moved response | `resp.IsLocationMoved()` |

| Gets the location moved URL | `resp.LocationMovedURL()` |

| Gets the dict response headers | `resp.GetHeaders()` |

| Gets the reponse content type | `resp.GetContentType()` |

| Gets the response content length | `resp.GetContentLength()` |

| Reads response content (part or total) | `resp.ReadContent(size=None)` |

| Reads response content into buffer | `resp.ReadContentInto(buf, nbytes=None)()` |

| Reads response content as json object | `resp.ReadContentAsJSON()` |

| Writes response content to a file | `resp.WriteContentToFile(filepath, progressCallback=None)` |

| Checks if response is closed | `resp.IsClosed()` |

| Closes response | `resp.Close()` |

### Example of GET (large response) :

```python

from microWebCli import MicroWebCli

wCli = MicroWebCli('http://my-web-site.io/test.html')

wCli.QueryParams['pet'] = 'cat'

print('GET %s' % wCli.URL)

wCli.OpenRequest()

buf  = memoryview(bytearray(1024))

resp = wCli.GetResponse()

if resp.IsSuccess() :

  while not resp.IsClosed() :

    x = resp.ReadContentInto(buf)

    if x < len(buf) :

      buf = buf[:x]

    print(buf.decode())

  print('GET success with "%s" content type' % resp.GetContentType())

else :

  print('GET return %d code (%s)' % (resp.GetStatusCode(), resp.GetStatusMessage()))

```

### Example of PUT (large request) :

```python

from microWebCli import MicroWebCli

auth = MicroWebCli.AuthToken('Dk23JHsI7NsMcY3C=')

wCli = MicroWebCli('http://my-web-site.io/my-api/user/12', 'PUT', auth)

print('PUT %s' % wCli.URL)

wCli.OpenRequest('application/octet-stream', fileSize)

while True :

  data = fileObject.read(1024)

  if not data :

    break

  wCli.RequestWriteData(data)

resp = wCli.GetResponse()

if resp.IsSuccess() :

  o = resp.ReadContentAsJSON()

  print('PUT success')

else :

  print('PUT return %d code (%s)' % (resp.GetStatusCode(), resp.GetStatusMessage()))

```

### Example of saving response to a file :

```python

from microWebCli import MicroWebCli

def progressCallback(microWebCli, progressSize, totalSize) :

  if totalSize :

    print('Progress: %d bytes of %d downloaded...' % (progressSize, totalSize))

  else :

    print('Progress: %d bytes downloaded...' % progressSize)

filename = '/flash/test.pdf'

wCli = MicroWebCli('http://my-web-site.io/test.pdf')

print('GET file %s' % wCli.URL)

wCli.OpenRequest()

resp = wCli.GetResponse()

contentType = resp.WriteContentToFile(filename, progressCallback)

print('File of content type "%s" was saved to "%s"' % (contentType, filename))

```

### By JC`zic for [HC²](https://www.hc2.fr) ;')

*Keep it simple, stupid* :+1: