function SigV4AuthProvider()

in lib/sigv4-auth-provider.js [37:56]

• 17 lines of code
• 4 McCabe index (conditional complexity)

function SigV4AuthProvider( {
    region,
    accessKeyId,
    secretAccessKey,
    sessionToken} = {}) {
  if (accessKeyId) {
    const credentials = new AWS.Credentials(accessKeyId, secretAccessKey, sessionToken);
    this.chain = new AWS.CredentialProviderChain([credentials]);
  } else {
    this.chain = new AWS.CredentialProviderChain();
  }

  this.region = region || SigV4AuthProvider.getRegionFromEnv();

  // validate region
  if (!this.region) {
    throw new Error('[SIGV4_MISSING_REGION] No region provided.  You must either provide a region or set '
    + 'environment variable [AWS_REGION]');
  }
}