Reentrant web method VIs

[abigalexinli]

I would like my web service VI to handle multiple request concurrently. I found this post https://forums.ni.com/t5/LabVIEW/Reentrant-web-method-VIs/td-p/1534796?profile.language=en. It seems the reentrant web method VI is what I am looking for. However, the reentrant property is disabled in Labview 2019. Is there another way to achieve the same thing?

I am still quite new to LabView, so if you can provide more details to the solution, it will be much appreciated.

Thanks!

[tst · Accepted solution]

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@abigalexinli wrote:

However, the reentrant property is disabled in Labview 2019

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What do you mean by this? I think that in the other discussion it meant that the user simply made the VI non-reentrant, not that they couldn't choose the reentrant option. In both 2015 and 2020 the reentrant options are enabled for the web service method VIs, so I expect it's the same for 2019 and a quick test shows that reentrant VIs are called in parallel when making a call to a GET method.

[abigalexinli]

Thanks!

I don't know why the reentrant options were grayed yesterday. Today I can choose the options.

I tested with two chrome browsers in the same computer, the two calls are not in parallel. But with two IE browesers in the same computer, the two calls are parallel.