How to create a REST flow with OAuth2 in OO?

Question

I am unsure on how to create a REST flow with OAuth2 in OO, as the HTTP operations don't seem to have the proper input variables that I need for this. 
 For OAuth2, I e.g. have the following variables: 
 
 Ressource Owner Name 
 Ressource Owner Password 
 Client Identification 
 Client Secret 
 Access Token URI 
 
 In which operation and in which input-variables would I put all those variables in, so that OO can make a proper REST call using OAuth2? Is there a sample flow for this somewhere in OO? I have tried to use the sample flow "Get Auth Token" in Library->Integrations->Micro Focus ->Cloud OS, but I couldn't get it to work. 
 Any help would be greatly appreciated

Andreas Hörn · Accepted Answer

thank you all for your help 
 It wasn't the complete solution, but you showed me the right direction I managed to do it now with the following setup: I used the Operation from Base/Library/Operations/HTTP Client/v2.0/Http Client Post and then filled out the variables as follows (additional notes are in braces like this sentence): url = url for getting the oauth token 
 authType = Basic 
 username = Client Identification (this username will then be used for the Basic encoding as set by the authType) 
 password = Client Secret (this password will then be used for the Basic encoding as set by the authType) preemtiveAuth = true (for testing purposes, to ensure the call goes through) 
 trustAllRoots = true (again for testing purposes, to ensure the call goes through) 
 x509HostnameVerifier = allow_all (again for testing purposes, to ensure the call goes through) 
 headers = (nothing, leave this variable empty) 
 responseCharacterSet = UTF-8 (this is by default some ISO-8859 and will most likely not work like this, so setting this to UTF-8 is really important!) 
 body = grant_type=password&username=${ressource-owner-username}&password=${ressource-owner-password} (here the "Ressource Owner Name" and the "Ressource Owner Password" are used as a variable within the entry for the body) 
 contentType = application/x-www-form-urlencoded 
 requestCharacterSet = UTF-8 (again, any other encoding will likely not work) 
 method = POST

Dusko Lazarevic · Answer

Hi, 
 
 Could you try to send a POST REST request to the specified URL with the following body: 
 grant_type=client_credentials&client_id=${LV_clientId}&client_secret=${LV_secret} 
 
 I also had to put following in the header, but I am not sure if this is the end point specific: 
 cache-control: no-cache, max-age=0 pragma: no-cache accept: application/json 
 
 Leave authType empty. 
 As a result you should get a token. 
 Good luck

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How to create a REST flow with OAuth2 in OO?

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