e-Way Bill API
User Guide
 
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 (c) Chartered Information Systems Pvt. Ltd., 2018

Authentication URL: (Method:GET)

 
 
Type
Url
Headers
SandBox
https://gstsandbox.charteredinfo.com/ewaybillapi/dec/v1.03/auth?action=ACCESSTOKEN
1. aspid
2. password
3. gstin
4. username
5. ewbpwd
Production
https://einvapi.charteredinfo.com/v1.03/dec/auth?action=ACCESSTOKEN
1. aspid
2. password
3. gstin
4. username
5. ewbpwd
 
Add 360 mins to system DateTime and save as TokenExp along with AuthToken.  Before giving every API Call, check
IF (SystemDateTime  > TokenExp)
       Give call to authenticate api, Save new AuthToken and TokenExp; then proceed with API Call.
ELSE
       Proceed with API Call using existing AuthToken.