Trigger AWS Lambda in Java for the newly uploaded file
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I am working on a requirement where I want to trigger the AWS Lambda function written in Java when a file is uploaded on S3 bucket. The condition is that the function should pick-up the latest file in the bucket. Right now, I have the lambda function which picks up the specified file (having already specified file name). But as per the requirement, the file name can be anything(eg. web-log-). Is there any way to do that?
Since with lambda functions, we have access to the event object, can I use it to find out the recently uploaded file?
amazon-web-services amazon-s3 aws-lambda
asked Nov 12 at 7:48
Swapnil
467
add a comment |
up vote
0
down vote
favorite
I am working on a requirement where I want to trigger the AWS Lambda function written in Java when a file is uploaded on S3 bucket. The condition is that the function should pick-up the latest file in the bucket. Right now, I have the lambda function which picks up the specified file (having already specified file name). But as per the requirement, the file name can be anything(eg. web-log-). Is there any way to do that?
Since with lambda functions, we have access to the event object, can I use it to find out the recently uploaded file?
amazon-web-services amazon-s3 aws-lambda
asked Nov 12 at 7:48
Swapnil
467
1
Did you read docs.aws.amazon.com/lambda/latest/dg/with-s3.html ? Was anything specific unclear?
– Boris van Katwijk
Nov 12 at 7:56
@BorisvanKatwijk Yeah! I checked that. But I could not find any information to work on the recently uploaded file. The situation is like this- Suppose there is a S3 bucket and there are already 4-5 files uploaded. As soon as the 6th file is uploaded, I want to trigger the code.
– Swapnil
Nov 12 at 8:05
add a comment |
up vote
0
down vote
favorite
up vote
0
down vote
favorite
I am working on a requirement where I want to trigger the AWS Lambda function written in Java when a file is uploaded on S3 bucket. The condition is that the function should pick-up the latest file in the bucket. Right now, I have the lambda function which picks up the specified file (having already specified file name). But as per the requirement, the file name can be anything(eg. web-log-). Is there any way to do that?
Since with lambda functions, we have access to the event object, can I use it to find out the recently uploaded file?
amazon-web-services amazon-s3 aws-lambda
asked Nov 12 at 7:48
Swapnil
467
I am working on a requirement where I want to trigger the AWS Lambda function written in Java when a file is uploaded on S3 bucket. The condition is that the function should pick-up the latest file in the bucket. Right now, I have the lambda function which picks up the specified file (having already specified file name). But as per the requirement, the file name can be anything(eg. web-log-). Is there any way to do that?
Since with lambda functions, we have access to the event object, can I use it to find out the recently uploaded file?
amazon-web-services amazon-s3 aws-lambda
amazon-web-services amazon-s3 aws-lambda
asked Nov 12 at 7:48
Swapnil
467
asked Nov 12 at 7:48
Swapnil
467
asked Nov 12 at 7:48
Swapnil
467
asked Nov 12 at 7:48
Swapnil
467
asked Nov 12 at 7:48
Swapnil
467
467
1
Did you read docs.aws.amazon.com/lambda/latest/dg/with-s3.html ? Was anything specific unclear?
– Boris van Katwijk
Nov 12 at 7:56
@BorisvanKatwijk Yeah! I checked that. But I could not find any information to work on the recently uploaded file. The situation is like this- Suppose there is a S3 bucket and there are already 4-5 files uploaded. As soon as the 6th file is uploaded, I want to trigger the code.
– Swapnil
Nov 12 at 8:05
add a comment |
1
Did you read docs.aws.amazon.com/lambda/latest/dg/with-s3.html ? Was anything specific unclear?
– Boris van Katwijk
Nov 12 at 7:56
@BorisvanKatwijk Yeah! I checked that. But I could not find any information to work on the recently uploaded file. The situation is like this- Suppose there is a S3 bucket and there are already 4-5 files uploaded. As soon as the 6th file is uploaded, I want to trigger the code.
– Swapnil
Nov 12 at 8:05
1
1
Did you read docs.aws.amazon.com/lambda/latest/dg/with-s3.html ? Was anything specific unclear?
– Boris van Katwijk
Nov 12 at 7:56
Did you read docs.aws.amazon.com/lambda/latest/dg/with-s3.html ? Was anything specific unclear?
– Boris van Katwijk
Nov 12 at 7:56
@BorisvanKatwijk Yeah! I checked that. But I could not find any information to work on the recently uploaded file. The situation is like this- Suppose there is a S3 bucket and there are already 4-5 files uploaded. As soon as the 6th file is uploaded, I want to trigger the code.
– Swapnil
Nov 12 at 8:05
@BorisvanKatwijk Yeah! I checked that. But I could not find any information to work on the recently uploaded file. The situation is like this- Suppose there is a S3 bucket and there are already 4-5 files uploaded. As soon as the 6th file is uploaded, I want to trigger the code.
– Swapnil
Nov 12 at 8:05
add a comment |
1 Answer
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oldest
votes
up vote
1
down vote
accepted
You could check out the AWS Lambda S3 tutorials, which should show how the uploaded object is passed in as event data. The example code contains a line which should point you in the right direction:
event.Records[0].s3.object.key
answered Nov 12 at 8:11
Boris van Katwijk
8871821
That is the perfect solution.String key = event.getRecords().get(0).getS3().getObject().getKey();The key variable holds the name of the file which trigerred the event. Thanks for your suggestion!
– Swapnil
Nov 12 at 8:34
add a comment |
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1 Answer
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oldest
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1 Answer
1
active
oldest
votes
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oldest
votes
active
oldest
votes
up vote
1
down vote
accepted
You could check out the AWS Lambda S3 tutorials, which should show how the uploaded object is passed in as event data. The example code contains a line which should point you in the right direction:
event.Records[0].s3.object.key
answered Nov 12 at 8:11
Boris van Katwijk
8871821
That is the perfect solution.String key = event.getRecords().get(0).getS3().getObject().getKey();The key variable holds the name of the file which trigerred the event. Thanks for your suggestion!
– Swapnil
Nov 12 at 8:34
add a comment |
up vote
1
down vote
accepted
You could check out the AWS Lambda S3 tutorials, which should show how the uploaded object is passed in as event data. The example code contains a line which should point you in the right direction:
event.Records[0].s3.object.key
answered Nov 12 at 8:11
Boris van Katwijk
8871821
That is the perfect solution.String key = event.getRecords().get(0).getS3().getObject().getKey();The key variable holds the name of the file which trigerred the event. Thanks for your suggestion!
– Swapnil
Nov 12 at 8:34
add a comment |
up vote
1
down vote
accepted
up vote
1
down vote
accepted
You could check out the AWS Lambda S3 tutorials, which should show how the uploaded object is passed in as event data. The example code contains a line which should point you in the right direction:
event.Records[0].s3.object.key
answered Nov 12 at 8:11
Boris van Katwijk
8871821
You could check out the AWS Lambda S3 tutorials, which should show how the uploaded object is passed in as event data. The example code contains a line which should point you in the right direction:
event.Records[0].s3.object.key
answered Nov 12 at 8:11
Boris van Katwijk
8871821
answered Nov 12 at 8:11
Boris van Katwijk
8871821
answered Nov 12 at 8:11
Boris van Katwijk
8871821
answered Nov 12 at 8:11
Boris van Katwijk
8871821
8871821
That is the perfect solution.String key = event.getRecords().get(0).getS3().getObject().getKey();The key variable holds the name of the file which trigerred the event. Thanks for your suggestion!
– Swapnil
Nov 12 at 8:34
add a comment |
That is the perfect solution.String key = event.getRecords().get(0).getS3().getObject().getKey();The key variable holds the name of the file which trigerred the event. Thanks for your suggestion!
– Swapnil
Nov 12 at 8:34
That is the perfect solution.
String key = event.getRecords().get(0).getS3().getObject().getKey(); The key variable holds the name of the file which trigerred the event. Thanks for your suggestion!– Swapnil
Nov 12 at 8:34
That is the perfect solution.
String key = event.getRecords().get(0).getS3().getObject().getKey(); The key variable holds the name of the file which trigerred the event. Thanks for your suggestion!– Swapnil
Nov 12 at 8:34
add a comment |
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1
Did you read docs.aws.amazon.com/lambda/latest/dg/with-s3.html ? Was anything specific unclear?
– Boris van Katwijk
Nov 12 at 7:56
@BorisvanKatwijk Yeah! I checked that. But I could not find any information to work on the recently uploaded file. The situation is like this- Suppose there is a S3 bucket and there are already 4-5 files uploaded. As soon as the 6th file is uploaded, I want to trigger the code.
– Swapnil
Nov 12 at 8:05