Joe Warner created NIFI-4397:
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             Summary: PutElasticsearchHttp Processor: Elasticsearch URL 
property isn't expanding nifi language expressions
                 Key: NIFI-4397
                 URL: https://issues.apache.org/jira/browse/NIFI-4397
             Project: Apache NiFi
          Issue Type: Bug
          Components: Core Framework
    Affects Versions: 1.3.0
            Reporter: Joe Warner
            Priority: Minor


Despite the documentation saying that the PutElasticsearchHttp processor should 
support expression language this isn't happening. The Index property works 
correctly however. The property validates whether the value looks like a URL. 
But it seems like this validation is taking place before the expression is 
evaluated. Also, expressions like 'http://${url}' still are not evaluated.

Technically I guess this isn't a 'major' issue, but it is quite painful to use 
it without the replacement happening. See also NIFI-4396 which is very similar 
behaviour.




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