Add Try Except block for sending an EventGrid Event

Question

Add Try Except block for sending an EventGrid Event

Bexy Morgan 260

Add Try Except block to handle any errors or failures for below code snippet (any errors in data,subject,event_type,data_version or in any thing)

event = EventGridEvent(
    data={"team": "azure-sdk"},
    subject="Door1",
    event_type="Azure.Sdk.Demo",
    data_version="2.0"
)

credential = AzureKeyCredential(key)
client = EventGridPublisherClient(endpoint, credential)

client.send(event

MayankBargali-MSFT 70,891 Reputation points

2023-08-21T06:35:35.8+00:00

Hi @Bexy Morgan

Following up to see if the answer below helps. Feel free to get back to us if you need any assistance.

Please "Accept Answer" if the answer is helpful so that it can help others in the community.
MayankBargali-MSFT 70,891 Reputation points

2023-08-22T04:43:44.7033333+00:00

Hi @Bexy Morgan

I hope the answer helps. Feel free to get back to us if you need any assistance.

Please "Accept Answer" if the answer is helpful so that it can help others in the community.

1 answer

Your answer

MayankBargali-MSFT 70,891 Reputation points

2023-08-21T06:35:35.8+00:00

Hi @Bexy Morgan

Following up to see if the answer below helps. Feel free to get back to us if you need any assistance.

Please "Accept Answer" if the answer is helpful so that it can help others in the community.
MayankBargali-MSFT 70,891 Reputation points

2023-08-22T04:43:44.7033333+00:00

Hi @Bexy Morgan

I hope the answer helps. Feel free to get back to us if you need any assistance.

Please "Accept Answer" if the answer is helpful so that it can help others in the community.

Answer 1

MojiTMJ 690

Hello Bexy Morgan,

Certainly, adding a try and except block is a good practice to handle errors or failures gracefully. Here's how you can modify your code to include a try and except block to handle any exceptions that might occur during the process of sending an EventGrid event:

from azure.eventgrid import EventGridEvent
from azure.eventgrid import EventGridPublisherClient
from azure.core.credentials import AzureKeyCredential

try:
    event = EventGridEvent(
        data={"team": "azure-sdk"},
        subject="Door1",
        event_type="Azure.Sdk.Demo",
        data_version="2.0"
    )

    credential = AzureKeyCredential(key)
    client = EventGridPublisherClient(endpoint, credential)

    client.send(event)
    print("Event sent successfully")
except Exception as e:
    print("An error occurred:", str(e))

In this modified code, if any exception occurs within the try block, it will be caught by the except block, and an error message will be printed to the console. This way, your code will handle errors gracefully without crashing.

Remember to replace key and endpoint with your actual Azure Event Grid key and endpoint values.

Feel free to tailor the error handling in the except block to your specific needs, such as logging the error or taking other actions to handle the failure scenario.

Bexy Morgan 260 Reputation points

2023-08-15T10:19:16.38+00:00

But when I intentionally fail the code with error syntax, except block is not able to capture that syntax error.
MojiTMJ 690 Reputation points

2023-08-15T10:31:24.7+00:00
Yes you're correct. The try and except block is designed to catch runtime errors (also known as exceptions) that occur during the execution of your code. These errors include situations like division by zero, attempting to access an undefined variable, or trying to open a file that doesn't exist.

However, syntax errors are detected by the Python interpreter before the code is executed. They indicate that the code itself is not valid Python syntax, and they prevent the code from running at all. Since syntax errors occur before runtime, they cannot be caught by an except block.

CHECK OUT the closing quotation mark at the end of line 19 (try to insert block code next time ;) )

For example, the following code will result in a syntax error and won't even reach the try block:

try: # This line has a syntax error print("Hello, world' except Exception as e: print("An error occurred:", str(e))

In this case, the syntax error in the print statement will cause the code to fail before the try block is executed, so the except block won't be triggered.

To handle syntax errors, you need to ensure that your code is written with correct Python syntax before running it. This means checking for missing parentheses, quotation marks, colons, and other syntax elements. You can use an integrated development environment (IDE) or a code editor that provides syntax highlighting and error checking to help you catch these errors before running the code.
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Add Try Except block for sending an EventGrid Event

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