AWS Lambda gateway API gives error message
<p>I have created one API endpoint for lambda function, as - <a href="https://XXXXXXXXX.execute-api.us-east-1.amazonaws.com/XXXX/XXXXXXXXXXXX/" rel="noreferrer">https://XXXXXXXXX.execute-api.us-east-1.amazonaws.com/XXXX/XXXXXXXXXXXX/</a> which is GET method.</p>

<p>While calling that endpoint from postman it is giving me </p>

<blockquote>
  <p>{
    "message": "'XXXXXXXXX3LPDGPBF33Q:XXXXXXXXXXBLh219REWwTsNMyyyfbucW8MuM7' not a valid key=value pair (missing equal-sign) in Authorization header: 'AWS XXXXXXXXX3LPDGPBF33Q:XXXXXXXXXXBLh219REWwTsNMyyyfbucW8MuM7'."
  }</p>
</blockquote>

<p>This is a screenshot of the Amazon Lambda Upload Site: <a href="http://i.stack.imgur.com/mwJ3w.png" rel="noreferrer">http://i.stack.imgur.com/mwJ3w.png</a></p>

<p>I have Access Key Id &amp; Secret Access Key for IAM user. I used it all but no luck. Can anyone suggest tweak about this.</p>