function setRequest()

in serverless_artillery/processor.js [53:98]
34 lines of code
4 McCabe index (conditional complexity)

function setRequest(requestParams, context, _, next) {
  
  let endpoint = '';
  if (requestParams.url.includes('unoptimizedEndpointName')){
      endpoint = unoptimized_endpoint;
  } else if (requestParams.url.includes('optimizedEndpointName')) {
      endpoint = optimized_endpoint;
  }

  let body = '';
  for (let i = 0; i < context.vars.numRowsInRequest; i++) {
    let row = '2,0.675,0.55,0.175,1.689,0.694,0.371,0.474\n';
    body += row;
  };
  body = body.slice(0, body.length-2);

  const canonicalUri = '/endpoints/' + endpoint + '/invocations';
  const amzDate = strftime('%Y%m%dT%H%M%SZ', new Date(new Date().toUTCString()));
  const dateStamp = strftime('%Y%m%d', new Date(new Date().toUTCString()));

  const canonicalHeaders = 'content-type:' + contentType + '\n' + 'host:' + host + '\n' + 'x-amz-date:' + amzDate + '\n' + 'x-amz-security-token:' + sessionToken + '\n';
  const payloadHash = crypto.createHash('sha256').update(utf.encode(body)).digest('hex');
  
  const canonicalRequest = method + '\n' + canonicalUri + '\n' + canonicalQuerystring + '\n' + canonicalHeaders + '\n' + signedHeaders + '\n' + payloadHash;

  const credentialScope = dateStamp + '/' + region + '/' + service + '/' + 'aws4_request';
  const stringToSign = algorithm + '\n' +  amzDate + '\n' +  credentialScope + '\n' +  crypto.createHash('sha256').update(utf.encode(canonicalRequest)).digest('hex');

  const signingKey = getSignatureKey(secretKey, dateStamp, region, service);
  const signature = crypto.createHmac('sha256', signingKey).update(utf.encode(stringToSign)).digest('hex');

  const authorizationHeader = algorithm + ' ' + 'Credential=' + accessKey + '/' + credentialScope + ', ' +  'SignedHeaders=' + signedHeaders + ', ' + 'Signature=' + signature;
  
  const headers = {
      'Content-Type': contentType,
      'X-Amz-Date': amzDate,
      'Authorization': authorizationHeader,
      'X-Amz-Security-Token': sessionToken
  };

  requestParams.headers = headers;
  requestParams.body = body;

  return next();

};