CODEWITHSUNDEEP
apache-nifi
quieri
quieri

Reputation: 344

Set Content-type Apache NiFi dynamically

I'am using Apache NiFi for a small webservice that should be able to serve static files(HTML, JavaScript, PNG, SVG, CSS). I have encountered an issue since NiFi not seems to set the Content-Type in the response header.

How can I configure the HandleHttpResponse-module to set the Content-Type header properly based on the requested filetype?

One way to do it is to use nested ifElse-statements in Expression Language but I don't think that would be best practice?

What I'am trying to achieve is that it should set Content-Type to image/svg+xml if the requested file is an SVG file, text/css if the requested file is an CSS-file etc.

Thanks in advance!

Upvotes: 1

Views: 904

Answers (1)

daggett
daggett

Reputation: 28634

use LookupAttribute processor

put into SimpleKeyValueLookupService the map of file extension and Content-Type

svg = image/svg+xml
css = text/css
...

configure LookupAttribute to use SimpleKeyValueLookupService and set the dynamic property:

mime.type = ${filename:replaceAll('.*\\.([^\\.]+)$','$1')}

Upvotes: 2

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