We can set up Environment Variables in aws-lambda for example via AWS SAM:
Environment:
Variables:
TABLE_NAME: !Ref Table
How can I get this variables from current lambda via Node JS AWS-SDK?
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2 Answers
Just as you would any environment variable from node
const tableName = process.env.TABLE_NAME;
2 Comments
Usman Mutawakil
require('process') isn't necessary. Just process.env.TABLE_NAME will work as process.env is set globally in node.
Richie Mackay
Thanks point well made and I have updated the answer. Here is a reference in the documentation nodejs.org/api/process.html#process_process
I am just adding to the original answer to clarify the scope.To fetch any environment variable whether is defined by API or manually, you can use process.env.ENV_NAME
E.g. 
You can fetch the above using
let env = process.env.ENV_NAME
To read about it , you can refer the doc at AWS Doc
