topic Re: Connect to REST API and Get Data From Oracle Cloud Services in SAS Programming

Connect to REST API and Get Data From Oracle Cloud Services

BillSut — Thu, 12 Dec 2019 12:14:00 GMT

I'm need to connect to Oracle Cloud Services using a REST API and extract data into a data set.

Does anyone have a code example for this?

Re: Connect to REST API and Get Data From Oracle Cloud Services

Ksharp — Thu, 12 Dec 2019 13:13:55 GMT

You could try

PROC HTTP

LIBNAME 's JSON engine.

@ChrisHemedinger wrote a couple of blogs about it.

https://blogs.sas.com/

Re: Connect to REST API and Get Data From Oracle Cloud Services

BillSut — Thu, 12 Dec 2019 13:36:49 GMT

Thank you for the response. That is what I'm trying to use but I can't find any examples with a user name and password. These are required for the API that I'm required to use.

Re: Connect to REST API and Get Data From Oracle Cloud Services

ChrisHemedinger — Thu, 12 Dec 2019 13:45:08 GMT

Hi @BillSut - I see you asked this question in another board, but ran into a dead end -- maybe due to your org proxy. PROC HTTP supports PROXY* options that you can use to punch through that -- you might need to get the proper settings from your IT. I recommend you use this standalone test first to make sure things are working.

In using any REST service with PROC HTTP, I often work backwards by starting with API doc that offers examples in cURL. You can find some of these for Oracle Cloud Services here (If I have done my Google searching correctly).

Beginning with this example:

 curl 
     -u service_cloud_user -X GET 
     -H "OSvC-CREST-Application-Context:Retrieve all incidents" 
     https://mysite.example.com/services/rest/connect/v1.4/incidents

The PROC HTTP version would look like:

filename resp "path-to-json-response-to-create";

proc http
 method="GET"
 url="https://mysite.example.com/services/rest/connect/v1.4/incidents"
 out=resp
 webusername='service_cloud_user'
 webpassword='your-password'
 /* proxy options if needed */
 /* proxyhost='host' proxyport=8080 */
;
 headers
  "OSvC-CREST-Application-Context"="Retrieve all incidents";
run;

The result would be a JSON response in the file you specify. You can then use LIBNAME JSON to parse this as data.

I think it's likely that you won't authenticate with user/password though, and that instead you'll use an auth token. That's pretty standard these days. I see Oracle Cloud Services supports a variety of different schemes. I have several examples of using OAuth2-supported services, including Microsoft Office 365 and Google.

Re: Connect to REST API and Get Data From Oracle Cloud Services

BillSut — Thu, 12 Dec 2019 14:03:41 GMT

Thanks Chris. My Proc HTTP that I've written looks like yours except the header part. It's not working though. I'm new to SAS so this is way over my head. Thanks for your input.

Re: Connect to REST API and Get Data From Oracle Cloud Services

ChrisHemedinger — Thu, 12 Dec 2019 16:55:10 GMT

Sometimes I use Postman (free tool for testing/building REST API calls) to build a prototype of the API calls I want -- easier to test and see results outside of SAS. Once that's working, it's easy to transcribe into SAS code.

Chris