question Re: regex on keys jolt in Support Questions

regex on keys jolt

meandeavour — Mon, 12 Sep 2022 15:47:45 GMT

Hi,

I'd like to catch any key that match a certain reg ex in jolt. The purpose is to clean and order keys into the proper name. An example worth thoushand words:

possible inputs:

{

"my_id":234535,

"my company sa": "whatever value",

"my comp RH": "whatever value",

...

}

{

"my_id":234536,

"my_comp_sa" : "whatever value",

"DRH" : "whatever value"

...

}

output:

{

"my_id":234535,

"my_company_sa": "whatever value",

"my_company_rh" : "whatever value"

}

Re: regex on keys jolt

SAMSAL — Mon, 12 Sep 2022 16:04:36 GMT

Hi,

I'm not sure if you can use Regex in jolt transformation, but you can use wildcard (*) instead. Keep in mind even with Regex you still need to find the common denominator for each attribute to be able to match, so wildcard should suffice. To use the wildcard you can apply something like this to your spec:

[ { "operation": "shift", "spec": { "my_id": "my_id", "my*company*sa": "my_company_sa", "*RH": "my_company_rh" } } ]

Hope that helps, if it does please accept solution.

Thanks

Re: regex on keys jolt

meandeavour — Wed, 14 Sep 2022 14:56:25 GMT

Actually, it looks like this kind of regEx does not work. Though my question. I'm using Nifi 11.4...

Thank you for your feedback 🙂