demo_aws_lambda_function_hello_world_as_python
Demo AWS lambda function HelloWorld.py as python
https://github.com/joelparkerhenderson/demo_aws_lambda_function_hello_world_as_python
Science Score: 44.0%
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Low similarity (5.8%) to scientific vocabulary
Repository
Demo AWS lambda function HelloWorld.py as python
Basic Info
- Host: GitHub
- Owner: joelparkerhenderson
- Language: Python
- Default Branch: master
- Size: 3.91 KB
Statistics
- Stars: 1
- Watchers: 2
- Forks: 0
- Open Issues: 0
- Releases: 0
Metadata Files
README.md
Demo AWS lambda function
Create a function
Write a simple function, for example a python script that says hello:
py
def lambda_handler(event, context):
print("Hello World")
Create a file HelloWorld.py with the function above.
Create a zip
Create a zip file that contains the function, which is necessary to upload to AWS:
sh
$ zip HelloWorld.zip HelloWorld.py
adding: HelloWorld.py (stored 0%)
Create the function
Create the function by using the AWS CLI:
sh
aws lambda create-function \
--function-name HelloWorld \
--runtime python3.6 \
--role arn:aws:iam::048251220134:role/demo-aws-cloudwatch-lambda-role \
--handler HelloWorld.lambda_handler \
--zip-file fileb://HelloWorld.zip
Invoke
Invoke:
sh
aws lambda invoke \
--function-name HelloWorld output.txt
Verify the output text:
sh
cat output.txt
Troubleshooting: bad handler
If you get this reply:
- {"errorMessage": "Bad handler 'lambda_handler'"}
Then you can see that 'lambda_handler' is wrong because it is missing the file name.
- The handler must have the file name e.g. "HelloWord.lambda_handler".
Update the handler name:
sh
aws lambda update-function-configuration \
--function-name HelloWorld \
--handler HelloWorld.lambda_handler
Troubleshooing: ResourceConflictException
If you get this:
- An error occurred (ResourceConflictException) when calling the CreateFunction operation: Function already exist: HelloWorld
Then you probably need to update, not create:
sh
aws lambda update-function-code \
--function-name HelloWorld \
--zip-file fileb://HelloWorld.zip
Thanks & Credits
Links:
Owner
- Name: Joel Parker Henderson
- Login: joelparkerhenderson
- Kind: user
- Location: California
- Website: http://www.joelparkerhenderson.com
- Repositories: 319
- Profile: https://github.com/joelparkerhenderson
Software developer. Technology consultant. Creator of GitAlias.com, NumCommand.com, SixArm.com, and many open source projects.
Citation (CITATION.cff)
cff-version: 1.2.0
title: Demo AWS lambda function
message: >-
If you use this work and you want to cite it,
then you can use the metadata from this file.
type: software
authors:
- given-names: Joel Parker
family-names: Henderson
email: joel@joelparkerhenderson.com
affiliation: joelparkerhenderson.com
orcid: 'https://orcid.org/0009-0000-4681-282X'
identifiers:
- type: url
value: 'https://github.com/joelparkerhenderson/demo_aws_lambda_function_hello_world_as_python/'
description: Demo AWS lambda function
repository-code: 'https://github.com/joelparkerhenderson/demo_aws_lambda_function_hello_world_as_python/'
abstract: >-
Demo AWS lambda function
license: See license file
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| Name | Commits | |
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