Omit port with Mule ESB http:request endpoint

Question

I'm trying to use the Mule ESB http:request endpoint to get data from api.crossref.org . I've found that I get a 404 if the port number is included. That is, this request succeeds:

GET http://api.crossref.org/works?filter=doi%3A10.1080%2F10573560601158461&sort=score&order=desc HTTP/1.1
Host: api.crossref.org
<blank line>
<blank line>

but this one fails:

GET http://api.crossref.org:80/works?filter=doi%3A10.1080%2F10573560601158461&sort=score&order=desc HTTP/1.1
Host: api.crossref.org:80
<blank line>
<blank line>

Is there a way to get to force Mule to omit the port number from the headers? This also happens with HTTPS and 443.

Answer 1

You could try adding the Host header manually, meaning in a request builder:

Mule 3

<http:request config-ref="HTTP_Request_Configuration" path="test" method="GET">
    <http:request-builder>
        <http:header headerName="Host" value="api.crossref.org" />
    </http:request-builder>
</http:request>

Mule 4

  <http:request config-ref="HTTP_Request_Configuration" path="test" method="GET">
    <http:headers>
      #[{"Host" : "api.crossref.org"}]
    </http:headers>
  </http:request>

Servers should handle the Host header with the port but unfortunately some do not. See the HTTP Troubleshooting Guide for more details. HTH

Answer 2

只需使用您的 URL 尝试使用 http 的端口 80 和 https 的端口 443，这是默认端口，它应该可以工作。