Event notification filters, multiple suffixes

[fyockm]

1.7.46 added support for event notification filters for aws s3, which is great. However, I would like to see the ability to add multiple suffixes per event.

$ aws s3api put-bucket-notification-configuration --bucket my_bucket --cli-input-json '{
    "Bucket": "my_bucket",
    "NotificationConfiguration": {
        "LambdaFunctionConfigurations": [{
            "Id": "abc123",
            "LambdaFunctionArn": "arn:aws:lambda:us-east-1:123456:function:image_processor",
            "Events": [
                "s3:ObjectCreated:*"
            ],
            "Filter": {
                "Key": {
                    "FilterRules": [{
                        "Name": "suffix",
                        "Value": "jpg"
                    }, {
                        "Name": "suffix",
                        "Value": "png"
                    }, {
                        "Name": "suffix",
                        "Value": "gif"
                    }, {
                        "Name": "suffix",
                        "Value": "tiff"
                    }]
                }
            }
        }]
    }
}'

Current response:

A client error (InvalidArgument) occurred when calling the PutBucketNotificationConfiguration operation:
Cannot specify more than one suffix rule in a filter.

Why can't there be more than one suffix rule? The FilterRules array seems perfectly set up to handle multiple suffixes. I can workaround by creating a separate LambdaFunctionConfiguration for each suffix, but it should be much easier.

[kyleknap]

This error is being thrown by S3. It looks like S3 does not support including multiple suffixes in the FilterRules element. To do what you want, I believe you will have to create a new element in the LambdaFunctionConfigurations for each suffix based on the S3 docs: http://docs.aws.amazon.com/AmazonS3/latest/dev/NotificationHowTo.html#notification-how-to-filtering. So something like this:

"LambdaFunctionConfigurations": [{
            "Id": "jpg",
            "LambdaFunctionArn": "arn:aws:lambda:us-east-1:123456:function:image_processor",
            "Events": [
                "s3:ObjectCreated:*"
            ],
            "Filter": {
                "Key": {
                    "FilterRules": [{
                        "Name": "suffix",
                        "Value": "jpg"
           }]}}},
           {"Id": "gif",
            "LambdaFunctionArn": "arn:aws:lambda:us-east-1:123456:function:image_processor",
            "Events": [
                "s3:ObjectCreated:*"
            ],
            "Filter": {
                "Key": {
                    "FilterRules": [{
                        "Name": "suffix",
                        "Value": "gif"
           }]}}}
]

Let me know if this helps.

[fyockm]

@kyleknap thanks for the response. your suggestion is exactly what I did. this issue was more of a feature request than a bug report.

[kyleknap]

Good to hear that you got it working.

Unfortunately, there is not really anything the CLI can do from its side, as we just send requests and parse responses based on S3's API. If would recommend requesting the feature to S3 through their forums: https://forums.aws.amazon.com/forum.jspa?forumID=24. If they add support for this, the CLI will automatically pick this up. Closing issue.