Hi all,
As we have discussed I'm implementing this project in Ballerina. At this
stage I have implemented a Ballerina code which validates
requests/responses and put that code inside the validation filter which is
created by me. After that I was able to successfully validate a json object
against a schema which is defined inside the project.
Now I'm working on sending a proper error message to the client if the
request is invalid. And for further implementation, we are hoping to embed
the swagger definition of the API at the time of micro-gateway setup and
also to make the response validation optional.
[image: image.png]
* Fig 1:Validating a
request*
[image: image.png]
*Fig 2: Validating a response*
Thanks,
Shalki.
On Mon, Sep 17, 2018 at 1:11 PM Shalki Wenushika <[email protected]> wrote:
> Hi Firzhan,
>
> I'm implementing this functionality in Ballerina. For that I'm planning to
> convert the json*-*schema-validator library in to Ballerina.
>
> Thanks,
> Shalki
>
>
> On Fri, Sep 14, 2018 at 10:42 PM, Firzhan Naqash <[email protected]> wrote:
>
>> Hi Shalika,
>>
>> This particular validation functionality has been partially implemented
>> (Without UI support) across various customer implementations.
>>
>> However, before implementing this feature, we should be able to consider
>> having options to use JSON schema validation options at the resource level
>> or on a global level.
>>
>> I have already done a custom handler implementation for JSON validation
>> by using the json*-schema-validator *library which is being used with
>> the EI's Validator mediator. AFAIK Lahiru implemented a comprehensive JSON
>> schema validation library.
>>
>> Regards,
>> Firzhan
>>
>>
>> email: [email protected]
>> mobile: (+94) 77 9785674 <%28%2B94%29%2071%205247551>*|
>> blog: http://firzhanblogger.blogspot.com/
>> <http://firzhanblogger.blogspot.com/> <http://suhothayan.blogspot.com/>*
>> *twitter: https://twitter.com/firzhan007
>> <https://twitter.com/firzhan007> | linked-in:
>> **https://www.linkedin.com/in/firzhan
>> <https://www.linkedin.com/in/firzhan>*
>>
>>
>> On Fri, Sep 14, 2018 at 9:49 AM Hasunie Adikari <[email protected]> wrote:
>>
>>> Hi Shalika,
>>>
>>> Could you please elaborate more on how are we planning to store the
>>> swagger definition in the API Gateway runtime?
>>>
>>> Regards,
>>> Hasunie
>>>
>>> On Fri, Sep 14, 2018 at 3:33 PM, Shalki Wenushika <[email protected]>
>>> wrote:
>>>
>>>> Hi All,
>>>>
>>>> Problem
>>>>
>>>>
>>>> -
>>>>
>>>> Current microgateway version does not have an approach to validate
>>>> requests/responses.
>>>> -
>>>>
>>>> Validating request/response based on a predefined API schema is
>>>> helpful to ensure whether the user have sent the request
>>>> according to the schema and also to ensure whether the back-end have
>>>> sent
>>>> the correct response to the request.
>>>>
>>>> Solution
>>>>
>>>>
>>>> -
>>>>
>>>> Store the swagger definition within gateway runtime.
>>>> -
>>>>
>>>> When a user sends a request to the microgateway, validate the
>>>> request using the swagger file.
>>>> -
>>>>
>>>> If valid, send the request to the back-end or otherwise send an
>>>> error message to the user.
>>>> -
>>>>
>>>> And when the back-end sends response to the request, validate the
>>>> response using the swagger file.
>>>> -
>>>>
>>>> If valid, send the response to the user or otherwise send an error
>>>> message.
>>>>
>>>>
>>>> Implementation
>>>>
>>>>
>>>> -
>>>>
>>>> Two solutions exist for this problem.
>>>>
>>>> 01. First solution is to validate request/response using everit JSON
>>>> schema validator.
>>>>
>>>> 02. Implement a request/response validator in Ballerina.
>>>>
>>>> For that swagger-model-validator for Node.js can be convert in to
>>>> Ballerina.
>>>>
>>>>
>>>>
>>>> Fig 1: Validating a request
>>>>
>>>> Fig 2: Validating
>>>> a response
>>>>
>>>>
>>>> Thank you!
>>>>
>>>> --
>>>>
>>>> *Shalki Wenushika*
>>>> *Software engineering Intern*
>>>> WSO2 (University of Moratuwa)
>>>> *mobile *: *+94 716792399* | *email *:
>>>> <http://c.content.wso2.com/signatures/wso2-signature-general.png>
>>>> [email protected]
>>>>
>>>>
>>>>
>>>>
>>>
>>>
>>> --
>>> *Hasunie Adikari*
>>> Senior Software Engineer
>>> WSO2 Inc.; http://wso2.com
>>> lean.enterprise.middleware
>>> blog http://hasuniea.blogspot.com | https://medium.com/@Hasunie/
>>> Mobile:+94713095876
>>>
>>> _______________________________________________
>>> Architecture mailing list
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>>>
>>
>
>
> --
>
> *Shalki Wenushika*
> *Software engineering Intern*
> WSO2 (University of Moratuwa)
> *mobile *: *+94 716792399* | *email *:
> <http://c.content.wso2.com/signatures/wso2-signature-general.png>
> [email protected]
>
>
>
>
--
*Shalki Wenushika*
*Software Engineering Intern*
WSO2 (University of Moratuwa)
*mobile *: *+94 716792399* | *email *:
<http://c.content.wso2.com/signatures/wso2-signature-general.png>
[email protected]
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