Configuring region in Node.js AWS SDK

Question

Can someone explain how to fix a missing config error with Node.js? I\'ve followed all the examples from the aws doc page but I still get this error no matter what.

Answer 1

I know I am EXTREMELY late to the party, but I have an additional solution which worked for me.

It might be worth passing credentials to each resource directly.

let lambda = AWS.Lambda({region: "us-east-1"});
let credentials = new AWS.SharedIniFileCredentials({
    profile: PROFILE_NAME,   
});

lambda.config.credentials = credentials;

Answer 2

Same error for me:

After doing a lot of trials I have settled on the below:

OPTION 1

1. set the AWS_REGION environment variable in local system only, to us-east-1 (example)

For Linux:

export AWS_ACCESS_KEY_ID=AKIAIOSFODNN7EXAMPLE
export AWS_SECRET_ACCESS_KEY=wJalrXUtnFEMI/K7MDENG/bPxRfiCYEXAMPLEKEY
export AWS_DEFAULT_REGION=us-east-1

For Windows
see: https://docs.aws.amazon.com/cli/latest/userguide/cli-configure-envvars.html

2. now, no need to set any lambda variables for region

3. also, no need to use in code, for example:

   • AWS.config.update(...), this is not required
   • AWS.S3(), etc., these will work without any problems. In place of S3, there can be any aws service

In a rare case if somewhere some defaults are assumed in code and you are forced to send region, then use {'region': process.env.AWS_REGION})

---

OPTION 2

Instead of environment variables, another way is AWS CONFIG file:

On Linux you can create below files:

~/.aws/credentials

[default]
aws_access_key_id=AKIAIOSFODNN7EXAMPLE
aws_secret_access_key=wJalrXUtnFEMI/K7MDENG/bPxRfiCYEXAMPLEKEY

~/.aws/config

[default]
region=us-west-2
output=json

See https://docs.aws.amazon.com/cli/latest/userguide/cli-configure-files.html