Aws Sagemaker invoke-endpoint call and csv

Question

i've created a clustering model on sagemaker and i'm invoking it via CLI with this command: aws sagemaker-runtime invoke-endpoint --endpoint-name myendpoint --body $mydata --content-type text/csv output.json --region eu-west-1

If my data starts with a negative number, i get an error "usage: aws [options] [ ...] [parameters] To see help text, you can run:

aws help aws help aws help aws: error: argument --body: expected one argument"

While if it's a positive number, everything works. How can i escape the first minus of the data to make it work? Thanks in advance

Answer 1

Did you use AWS Sagemaker's provided image for clustering? If you provided your own, you should be able to modify the inference code to expect the input data to have a header row. Then modify $mydata to include column headers which should avoid this issue you're seeing with negative numbers.

Answer 2

It looks like that aws cli is treating your input data as another option because negative sign and hyphen are the same.

Have you tried to use quotes before and after $mydata?

For example, instead of:

sagemaker-runtime invoke-endpoint --endpoint-name myendpoint --body -2,1,2 --content-type text/csv output.json --region eu-west-1

use:

sagemaker-runtime invoke-endpoint --endpoint-name myendpoint --body "-2,1,2" --content-type text/csv output.json --region eu-west-1