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Re: Use of square brackets [] in metadata field filter


We faced the same issue, and I have brought it to Lars' attention, and he
is aware of the issue. According to him, DHIS2 will be addressing this by
changing square brackets in the long term, but in the short term solution
you can make square brackets be exempted on the tomcat side by using
relaxedQueryChars="[]" in the Tomcat connector configuration.

On Tue, Oct 30, 2018 at 6:57 AM Jasper Timm <jasper.timm@xxxxxxxxxxxxxxxxx>

> Hi DHIS2 devs,
> I faced an issue recently with using (unencoded) square brackets in
> requests to the DHIS2 API. It turns out it was related to a new version of
> tomcat (7.0.90). I've spoken to the tomcat devs and they've said that they
> will now consider unencoded square brackets in a request to be an error.
> According to the docs:
> https://docs.dhis2.org/master/en/developer/html/webapi_metadata_field_filter.html square
> brackets are used to indicate a subfield, when using the field query
> parameter.
> Might it be worth considering changing the symbol used for this? At the
> very least it should be made clear that the requests using it will need to
> be URL encoded.
> There are even requests in the DHIS2 frontend (I'm running v2.27) which
> have unencoded square brackets. The approvals page in the report view fails
> with the new version of tomcat for this reason. It would be worth ensuring
> all frontend requests are properly encoded.
> Cheers,
> - Jasper
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