ring-authorization-python

RING requests authorization library for Python (version > 2). For more information, please read RING authorization docs

Example usage

When sending HTTP requests to RING, all requests must be signed so that RING can identify who sent them. In order to sign a request, you need to provide RING access key, RING secret key and the name of the service you make a request to. If you do not know what those properties are or how to get them, please contact someone from RING Publishing.

from src import DLSigner

options = {
    'service': 'pulsapi',
    'access_key': 'access_key',
    'secret_key': 'secret_key',
}

signer = DLSigner(**options)

Then, prepare a request which must contain method and headers fields. Moreover, headers must contain Host and Content-Type fields.

request = {
    'method': 'GET',
    'uri': '/resources?param1=val1',
    'headers': {
        'Host': 'api.ring.example.eu',
        'Content-Type': 'application/json',
        'Accept': 'application/json'
    }
}

signature = signer.sign(request)
print(signature)
# { 
#   Authorization: 'DL-HMAC-SHA256 Credential=access_key/20190618/RING/pulsapi/dl1_request,SignedHeaders=accept;content-type;host;x-dl-date,Signature=1abb0ff8c0869749e9db5c50ca3202b1ccae610155b4e7fcaca02ff07398b4d6'
#   'X-DL-Date': '20190618T103857Z'
# }

Finally, add calculated signature to the request.

signedRequest = {
    'method': 'GET',
    'uri': '/resources?param1=val1',
    'headers': {
        'Host': 'api.ring.example.eu',
        'Content-Type': 'application/json',
        'Accept': 'application/json',
        'Authorization': 'DL-HMAC-SHA256 Credential=access_key/20190618/RING/pulsapi/dl1_request,SignedHeaders=accept;content-type;host;x-dl-date,Signature=1abb0ff8c0869749e9db5c50ca3202b1ccae610155b4e7fcaca02ff07398b4d6',
        'X-DL-Date': '20190618T103857Z'
    }
}

POST request

If a request contains a body, then it should be passed as a array of bytes.

request = {
    "method": "POST",   
    "uri": "/resources",  
    "headers": {  
        'Host': 'api.ring.example.eu',
        'Content-Type': 'application/json',
        'Accept': 'application/json'
    },
    'body': b'', # array of bytes
}