Run AWS Lambda function locally! The most lightweight library - no external dependencies. Less than 200 lines of code.
Windows, Mac and Linux tested!
npm install -g aws-lambda-local
-f functionName | --function=functionName required Path to Lambda function main file
-e eventPath | --event=eventPath optional Path to .json file contains event object
-c contextPath | --context=contextPath optional Path to .json file contains context object
-t seconds | --timeout=seconds optional Force quit Lambda function after XX seconds
-n name | --name=name optional Property name for the exported Lambda function in main file
Just specify function name
(can be in nested directory), event
object file.
Optionally you also may replace default context
object and timeout
(30 seconds by default).
$ cat function.js
exports.handler = function(event, context)
{
context.done(event, context);
};
$ cat event.json
{
"obj" : { "a" : "b" },
"int" : 1,
"str" : "qwerty",
"arr" : [ 1, 2, 3, 4 ]
}
$ lambda-local -f function -e event.json -t 20
ERROR
--------------------------------
{
"obj": {
"a": "b"
},
"int": 1,
"str": "qwerty",
"arr": [
1,
2,
3,
4
]
}
OUTPUT
--------------------------------
{
"awsRequestId": "wn26j4dm-m8zd-d7vi-j94j-50t4zsjlwhfr",
"logGroupName": "/aws/lambda/function",
"logStreamName": "2015/11/12/[$LATEST]wn26j4dmtm8zd7vij94j50t4zsjlwhfr",
"functionName": "function",
"memoryLimitInMB": "128",
"functionVersion": "$LATEST",
"invokedFunctionArn": "arn:aws:lambda:aws-region:1234567890123:function:function",
"invokeId": "wn26j4dm-m8zd-d7vi-j94j-50t4zsjlwhfr"
}
If you missed to call context.succeed()|fail()|done() function and your Lambda function runs forever - just use timeout
option!
Check out my aws-lambda-build package!