getCredentialChainCreds always returns undefined

aws-sigv4-auth-cassandra-nodejs-driver-plugin/lib/sigv4-auth-provider.js

Lines 74 to 83 in 220aaae

    
           function getCredentialChainCreds() { 
        
             let chain = new AWS.CredentialProviderChain(); 
        
             let result; 
        
             chain.resolve((err, c) => { 
        
               result = c; 
        
             }); 
        
             return result; 
        
           };

this function will always return undefined because chain.resolve(...) is async and the callback will not run until after getCredentialChainCreds returns

With the recent PR I believe the issue is resolved.

	function getCredentialChainCreds() {
	let chain = new AWS.CredentialProviderChain();

	let result;
	chain.resolve((err, c) => {
	result = c;
	});

	return result;
	};