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11-05-2021
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11-11-2021
04:00 AM
I did a workaround and run this command using a bash script. When I try to send this json as a parameter I had the same error. I imagine that is not a problem from Nifi, but something related to passing a json to a bash script. In my processor I run the script and as parameter the name of my function and the url to search. To solve the problem of the json I create a temporary file with the data. #!/bin/bash
TABLE="myTable"
URL=$2
FILTER_EXPRESSION="url = :value"
EXPRESSION_ATTR="{\":value\":{\"S\":\"$URL\"}}"
endpoint () {
echo $EXPRESSION_ATTR > /tmp/expression.json
aws dynamodb scan --table-name $TABLE \
--filter-expression "$FILTER_EXPRESSION" \
--expression-attribute-values file:///tmp/expression.json \
rm -f /tmp/expression.json
}
$1
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11-05-2021
10:23 AM
Greetings, I have a dynamodb table and I need to scan this table and I need to use a filter expression. When I run the command from the prompt I receive the result that I want, but when I run the command with ExecuteProcess, I'm having trouble with the expression-attribute-values parameter. When I run the command I receive the following error: usage:
Note: AWS CLI version 2, the latest major version of the AWS CLI, is now stable and recommended for general use. For more information, see the AWS CLI version 2 installation instructions at: https://docs.aws.amazon.com/cli/latest/userguide/install-cliv2.html
usage: aws [options] <command> <subcommand> [<subcommand> ...] [parameters]
To see help text, you can run:
aws help
aws <command> help
aws <command> <subcommand> help
Unknown options: :value', = aws dynamodb scan --table-name myTable --filter-expression "url = :value" --expression-attribute-values '{":value":{"S":"https://www.google.com"}}' My processor configuration : Anyone could help me?
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