Configure the Basic I/O Function

Now, we will begin coding the authorization portal application by configuring the function component.

The function’s directory, (functions/authorization_portal_function), contains:

• The main.py main function file
• The catalyst-config.json configuration file
• Handler files
• requirements.txt file to mention any external libraries you might add

You will be adding code in the main.py file.

The Basic I/O function contains the following functionalities:

• The end-user’s details will provided as a JSON input to the Custom User Validation function.
• The function is coded to implement a custom logic based upon which the end-user will either be authenticated or denied.

Now, let’s begin coding the Basic I/O function.

Copy the code given below and paste it in the main.py file in the functions/authorization_portal_function directory of your project, and save the file. You can use any IDE of your choice to work with the application’s files.

    

        
index.js
        

            
copy
            

                

            
        
    
    

    

         import json
import zcatalyst_sdk
def handler(context, basicio):
catalyst_app = zcatalyst_sdk.initialize()
auth_service = catalyst_app.authentication()
request_details = auth_service.get_signup_validation_request(basicio)
if request_details:
if "@zylker.com" in request_details["user_details"]["email_id"]:
basicio.write(json.dumps({"status": "failure"})) 
//The user has failed authentication
else:                                                
//The actions that occur in the event of a successful authentication can be customized
basicio.write(
json.dumps(
{
"status": "success",
"user_details": {
"first_name": request_details["user_details"]["first_name"],
"last_name": request_details["user_details"]["last_name"],
"email_id": request_details["user_details"]["email_id"],
"role_identifier": "App User", 
//If you want to override the default role, you can specify the role id/name here.
'org_id': "orgId" 
//If you are providing the Org ID, make sure it is copied exactly from the console. 
},
}
)
)
context.close()

         
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The function directory is now configured. We can now proceed to configuring the client directory.