question Re: NiFi InvokeHTTP POST request authenticate via api key and send json input in request body in Support Questions

NiFi InvokeHTTP POST request authenticate via api key and send json input in request body

madhs — Mon, 26 Jun 2023 04:45:36 GMT

Hi Team, I require to pass the json created via JoltTranformJSON into the InvokeHTTP call as the body of the rest api post request, require to authenticate the api call via api key (need to send in the header) and need to get the api call response into a variable in Nifi 1.21.0. Can someone please help on this ?

Thank you

Re: NiFi InvokeHTTP POST request authenticate via api key and send json input in request body

cjervis — Mon, 26 Jun 2023 13:10:40 GMT

Welcome to the community @madhs. @stevenmatison is this something you can provide clarity on?

Re: NiFi InvokeHTTP POST request authenticate via api key and send json input in request body

joseomjr — Mon, 26 Jun 2023 15:48:22 GMT

Use an UpdateAttribute processor to add attributes with your header values. i.e. Content-Type with value of application/json and in the InvokeHTTP you'll notice there's a field called Attributes to Send (or something like this... They will be the headers) and list those Accept|Authorize|Any other (it's regular expression so you might have to escape some characters). FlowFile content should be sent as the body.

Re: NiFi InvokeHTTP POST request authenticate via api key and send json input in request body

steven-matison — Mon, 26 Jun 2023 16:04:49 GMT

@madhs @joseomjr A great example of the configuration is above.

Here is a full flow definition file/example showing how to get values from JSON and prepare ahead of an InvokeHTTP processor:

Flow Def File:

https://raw.githubusercontent.com/cldr-steven-matison/NiFi-Templates/main/InvokeHttp_Demo_2.json

Re: NiFi InvokeHTTP POST request authenticate via api key and send json input in request body

cjervis — Fri, 30 Jun 2023 12:19:46 GMT

@madhs Have you resolved your issue. If so, please mark the appropriate reply as the solution, as it will make it easier for others to find the answer in the future.