How can I run python script manually in AWS Lambda?

Question

I have created a Lambda and uploaded Python scripts along with the dependencies, I scheduled the Lambda to be executed three times a day, but I wanted to test it manually first so that I can have a look at the logs in CloudWatch, how can I do this?

I noticed that there is a 'Test' section but how can I configure this to tell Lambda to execute my script instead of using this 'hello world' test template, many thanks.

You can specify your own custom event, or if you don't need it, just run it and ignore the event. — Marcin
– Marcin, Commented Sep 9, 2020 at 10:46
Under 'Function code' section, there are File/Edit/Find/View/Go/Tools/Windows/Save/Test, but neither of them has a 'Run' button. I couldn't find the button where I can literally click on it an run the script in AWS console, Do you mind telling me where I can find it please? Thanks. — wawawa
– wawawa, Commented Sep 9, 2020 at 10:54
What is your function expecting as input ? What kind of event — Traycho Ivanov
– Traycho Ivanov, Commented Sep 9, 2020 at 10:56
You just press Test. Create some dummy test even if you don't need specif one, and press Test. — Marcin
– Marcin, Commented Sep 9, 2020 at 10:58

John Rotenstein · Accepted Answer · 2020-09-10 03:29:26Z

2

Typically, an AWS Lambda function is triggered by an event, such as an object being uploaded to Amazon S3 or a message being sent to an Amazon SQS queue.

In such situations, data about the event that triggered the function is supplied in the event variable passed to the function.

To simulate such events for testing purposes, the AWS Lambda console has the ability to provide a JSON event that mimics such events.

However, if your Lambda function does not require any input data via the event variable, then you can simply:

Create a test event with any content, then
Click the Test button

This will execute the Lambda function within the console and will immediately provide any error messages and/or display any information that is printed by your function. It is a great way to debug Lambda functions!

answered Sep 10, 2020 at 3:29

John Rotenstein

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Traycho Ivanov · Accepted Answer · 2020-09-09 10:58:43Z

1

It is simple, just edit the example json with your expected one. Put a name of your testing event and click Create, after that you will have it saved in the dropdown on the left side of the Test button.

It is described also over here - https://docs.aws.amazon.com/lambda/latest/dg/getting-started-create-function.html#get-started-invoke-manually

answered Sep 9, 2020 at 10:58

Traycho Ivanov

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