Daniel Stieglitz created NIFI-10754:
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Summary: Nifi Expression Language method urlEncode does encode a
URL path correctly when it contains white space
Key: NIFI-10754
URL: https://issues.apache.org/jira/browse/NIFI-10754
Project: Apache NiFi
Issue Type: Bug
Reporter: Daniel Stieglitz
The Nifi Expression Language urlEncode method replaces white space with a + and
not %20. That is fine for the query section of a URL but not the path. There
are many Stackoverflow posts which detail the issue. Here is one, [URLEncoder
not able to translate space
character|https://stackoverflow.com/questions/4737841/urlencoder-not-able-to-translate-space-character]
Our particular scenario is where we build a URL from attributes and then try to
call the URL with InvokeHTTP
e.g. of an issue
{code:java}
https://somehost/api/v1/somepath /actual?att1=something&att2=somethingelse{code}
Using urlEncode will convert that url to
{code:java}
https%3A%2F%2Fsomehost%2Fapi%2Fv1%2Fsomepath+%2Factual%3Fatt1%3Dsomething%26att2%3Dsomethingelse{code}
The + in the URL path is not the same as a blank space hence the call to
InvokeHttp fails.
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