How do I access Lambda environment variables in IoT Greengrass?

Question

I have a Lambda function with a NodeJS 12.x runtime and five environment variables. When I write the output of `process.env['someVar']` while testing the  Lambda in the console, I can see the value of the environment variable.

When I deploy the Lambda to a Greengrass Core (version 1.10), I do not see any value returned by `process.env['someVar']`. Is there a different mechanism to access them? The docs suggest there is no difference. "Key-value pairs that can dynamically pass settings to function code and libraries. Local environment variables work the same way as AWS Lambda function environment variables, but are available in the core environment."

```
Lambda cloud log

2020-04-15T21:10:28.389Z	842e9642-8982-44cc-bb84-a7f8e9a3cdec	INFO	url http://localhost:80
2020-04-15T21:10:28.389Z	842e9642-8982-44cc-bb84-a7f8e9a3cdec	INFO	process.env INFLUXDB_URL http://localhost:80

Lambda greengrass log

[2020-04-15T21:02:10.817Z][INFO]-url
[2020-04-15T21:02:10.817Z][INFO]-process.env INFLUXDB_URL
```

What am I missing?

Accepted Answer

The Lambda environment variables don't carry over, you need to add the environment variables to the "Group-specific Lambda configuration" in the AWS IoT Greengrass console.

https://docs.aws.amazon.com/greengrass/latest/developerguide/lambda-group-config.html

How do I access Lambda environment variables in IoT Greengrass?

Contenus pertinents