GST Pass Through API

GST Pass Through API

These details are given here for Documentation. Headers are added to all API calls using API methods if you are using TaxProGST.API library.

GSP Headers in Every API Calls

Header	Description
aspid	AspUserName or AspUserID provided by GSP.
asp-secret	AspPassword or AspSecreatKey provided by GSP for pass through API access, Encrypted using SessionEK (enc_key)
session-id	SessionID. ASP may create multiple Sessions.
txn	Unique Transaction ID even if calling GSP Service API. (Requires only once, which you are already passing as requirement for GST API.)
appver	Application Name and Version calling API. (Optional but Recomanded)

GST Headers in Every API Calls (in addation to GSP Headers above)

Header	Description
username	GSTN Portal UserName (UserID) of TaxPayer.
gstin	GSTIN of TaxPayer.
state-cd	State code of TaxPayer. (First 2 digits of GSTIN).
auth-token	TaxPayer Authorization token obtained from GST Server.
ret_prd	Return Period (Required for Return API Calls)
ip-usr	IP of device from which API is being invoked.
txn	Unique Transaction ID.
Content-Type	application/json

It is recommanded to add Header 'appver' to every request which would help you debug API calls if required, with our help.

Override method AddApiHeaders in APISession to add required headers to every request.

public override void AddApiHeaders(RestRequest request)

{

request.AddHeader("appver", "MyApp" + Assembly.GetExecutingAssembly().GetName().Version.ToString());

base.AddApiHeaders(request);

}

public override void AddGspApiHeaders(RestRequest request)

{

request.AddHeader("appver", "MyApp" + Assembly.GetExecutingAssembly().GetName().Version.ToString());

base.AddGspApiHeaders(request);

}