I have been trying to populate my variable bar with json fields from curl's POSTFIELDS attribute when invoking my workflow from an API using PHP. Below is a simple json passed when invoking the endpoint not as part of the URL but hidden POSTed data:
{"salesValue":5000,"authorId":2}
The properties above should be injected in Formatter Node where I generate the SQL statetement used by the ODBC driver to query our back-end database. I have been told that I can only do this, for now, by using the SCRIPT Node as I do not recall C# as having support for manipulating JSON Object out of the box. If I am behind with regards to that someone please lead me to an answer.
Question is: does Flowger support JSON Serialization, Deserialization, Decoding and/or encoding? There is a framework called JSON.Net for example. Can I use this if I want to manipulate my fgRequestBody property frfom my variable bar?
Try the below steps to get the desired results:
1 - Add a variable bar with two special properties: FgRequestBody and FgRequestContentType. Make sure that you specify the content type in the workflow, which will be application/json in your instance.
2 - Add a 'JSON Convert' directly after the start node and point your variable bar FgRequestBody to the input of Json on the Json Convert. This will convert json to xml.
3 - Add a 'XFormat' node and plug the xml output from the Json Convert to the 'XML Document' property. Right click on the node and add a new custom property with the name of the field that you would like to extract. In the custom property value, add the xpath to the value. In the Expression property of the node, add your sql statement e.g.
select * from tableName where name = '{customProperty}'
The results from this will be your sql query.
Troubleshooting Tip:
Use Postman Add-In (Chrome) or RESTClient (Firefox) to verify the results. You should see the node generation in the activity log within Flowgear. If you do not see this, then add a AllowedOrigin of * in your Flowgear Site properties. See the following for reference to this:http://en.wikipedia.org/wiki/Cross-origin_resource_sharing