awsSchema 0.0.1

dataclass for parsing aws objects eg api-gateway proxy integration proy

AWS_SCHEMA

dataclass for aws dictionaries

This library aims to parse aws dictionaries and json strings into dataclass objects

Install

pip install awsSchema

How to use

extract data from aws classes eg apigateway lambda input/output this library uses jsondataclass, and dataclass

from awsSchema.apigateway import Response, Event

dummyEvent = { "message": "Hello me!", "input": { "resource": "/{proxy+}", "path": "/hello/world", "httpMethod": "POST", "headers": { "Accept": "*/*", "Accept-Encoding": "gzip, deflate", "cache-control": "no-cache", "CloudFront-Forwarded-Proto": "https", "CloudFront-Is-Desktop-Viewer": "true", "CloudFront-Is-Mobile-Viewer": "False", "CloudFront-Is-SmartTV-Viewer": "False", "CloudFront-Is-Tablet-Viewer": "False", "CloudFront-Viewer-Country": "US", "Content-Type": "application/json", "headerName": "headerValue", "Host": "gy415nuibc.execute-api.us-east-1.amazonaws.com", "Postman-Token": "9f583ef0-ed83-4a38-aef3-eb9ce3f7a57f", "User-Agent": "PostmanRuntime/2.4.5", "Via": "1.1 d98420743a69852491bbdea73f7680bd.cloudfront.net (CloudFront)", "X-Amz-Cf-Id": "pn-PWIJc6thYnZm5P0NMgOUglL1DYtl0gdeJky8tqsg8iS_sgsKD1A==", "X-Forwarded-For": "54.240.196.186, 54.182.214.83", "X-Forwarded-Port": "443", "X-Forwarded-Proto": "https" }, "multiValueHeaders":{ 'Accept':[ "*/*" ], 'Accept-Encoding':[ "gzip, deflate" ], 'cache-control':[ "no-cache" ], 'CloudFront-Forwarded-Proto':[ "https" ], 'CloudFront-Is-Desktop-Viewer':[ "true" ], 'CloudFront-Is-Mobile-Viewer':[ "False" ], 'CloudFront-Is-SmartTV-Viewer':[ "False" ], 'CloudFront-Is-Tablet-Viewer':[ "False" ], 'CloudFront-Viewer-Country':[ "US" ], '':[ "" ], 'Content-Type':[ "application/json" ], 'headerName':[ "headerValue" ], 'Host':[ "gy415nuibc.execute-api.us-east-1.amazonaws.com" ], 'Postman-Token':[ "9f583ef0-ed83-4a38-aef3-eb9ce3f7a57f" ], 'User-Agent':[ "PostmanRuntime/2.4.5" ], 'Via':[ "1.1 d98420743a69852491bbdea73f7680bd.cloudfront.net (CloudFront)" ], 'X-Amz-Cf-Id':[ "pn-PWIJc6thYnZm5P0NMgOUglL1DYtl0gdeJky8tqsg8iS_sgsKD1A==" ], 'X-Forwarded-For':[ "54.240.196.186, 54.182.214.83" ], 'X-Forwarded-Port':[ "443" ], 'X-Forwarded-Proto':[ "https" ] }, "queryStringParameters": { "name": "me", "multivalueName": "me" }, "multiValueQueryStringParameters":{ "name":[ "me" ], "multivalueName":[ "you", "me" ] }, "pathParameters": { "proxy": "hello/world" }, "stageVariables": { "stageVariableName": "stageVariableValue" }, "requestContext": { "accountId": "12345678912", "resourceId": "roq9wj", "stage": "testStage", "requestId": "deef4878-7910-11e6-8f14-25afc3e9ae33", "identity": { "cognitoIdentityPoolId": None, "accountId": None, "cognitoIdentityId": None, "caller": None, "apiKey": None, "sourceIp": "192.168.196.186", "cognitoAuthenticationType": None, "cognitoAuthenticationProvider": None, "userArn": None, "userAgent": "PostmanRuntime/2.4.5", "user": None }, "resourcePath": "/{proxy+}", "httpMethod": "POST", "apiId": "gy415nuibc" }, "body": "{\r\n\t\"a\": 1\r\n}", "isBase64Encoded": False } }
event = Event.from_dict(dummyEvent['input'])
event

---------------------------------------------------------------------------

TypeError                                 Traceback (most recent call last)

/usr/local/Caskroom/miniconda/base/envs/python38/lib/python3.8/site-packages/IPython/core/formatters.py in __call__(self, obj)
    700                 type_pprinters=self.type_printers,
    701                 deferred_pprinters=self.deferred_printers)
--> 702             printer.pretty(obj)
    703             printer.flush()
    704             return stream.getvalue()


/usr/local/Caskroom/miniconda/base/envs/python38/lib/python3.8/site-packages/IPython/lib/pretty.py in pretty(self, obj)
    392                         if cls is not object \
    393                                 and callable(cls.__dict__.get('__repr__')):
--> 394                             return _repr_pprint(obj, self, cycle)
    395 
    396             return _default_pprint(obj, self, cycle)


/usr/local/Caskroom/miniconda/base/envs/python38/lib/python3.8/site-packages/IPython/lib/pretty.py in _repr_pprint(obj, p, cycle)
    682     """A pprint that just redirects to the normal repr function."""
    683     # Find newlines and replace them with p.break_()
--> 684     output = repr(obj)
    685     lines = output.splitlines()
    686     with p.group():


TypeError: __repr__ returned non-string (type dict)

event.getBody()

{'a': 1}

Response.fromDict({})

---------------------------------------------------------------------------

KeyError                                  Traceback (most recent call last)

<ipython-input-5-0b232cfd7ab6> in <module>
----> 1 Response.fromDict({})


~/pip/awsSchema/awsSchema/apigateway.py in fromDict(cls, dictInput)
     25       dictInput should follow apigateway proxy integration
     26     '''
---> 27     body = dictInput.pop('body')
     28     return cls(
     29       body = json.loads(body),


KeyError: 'body'