Invoice Extractor for Oracle ERP

The job is to develop a "connector" for Oracle ERP which can call an API (which I will provide) whenever an Invoice is created at the ERP. All requests to the API should have four headers gstn: <Billing_GSTIN> x-api-key: [This will need to be configured at the time of on-boarding of the customer] Content-Type: application/json User-Agent: Oracle ERP <version>; [unique name to identify the customer, configurable] <version> Note that the header is gstn and not gstin. And we should be able to configure the Connector to put <version> with correct version from respective application (to which we install the connector). Method: PUT / POST <I will provide the sandbox URL for this> Body: JSON Invoice Document (Attached Sample) Method: GET <I will provide the sandbox URL for this> IRN with the above url will be the response for PUT/POST. (This second API will need to be used later to develop a dashboard that would display status of invloices submitted for e-invoicing by calling the first API. This is presently out-of-scope, but would be got done later) Note: Format of any field (in the JSON) can be adjusted internally at out end if the correct User-Agent is provided. Again the API URL and API KEY should be configurable once the connector is ready. I would also need a user manual on how to install the Connector at a customer site.