I have created an app for getting web-hook whenever a contacted is added. Also I have implemented OAuth2 for getting the contact details. But this app can be used by multiple users and I didn't find any unique token in OAuth2 process which I can save to Identify the user. How can I Identify the user from webhook content.
If you have 10 users go through your OAuth flow, you'll get 10 access tokens. These tokens aren't specific to a particular HubSpot user; they're specific to a particular HubSpot portal. Webhook notifications include the portal ID, allowing you to identify which notifications are related to which portal. You should store the access token / portal relationship internally; the following endpoint can provide this info as well:
Thanks for the reply, but I think you are not getting it. Let me take an example for better explanation.
Suppose I have 10 users which are using my Hubspot app. All OAuth process has been done and I got a webhook notification and I have 10 Access token saved for 10 user. How can I identify that the webhook belongs to user1 or user2 because I didn't find any field that identify the web-hook belongs to which user and so that I can retrieve details using the right access token.
Currently, the changeSource field will show the source of the change that resulted in the webhook notification according to the following Knowledge Base article. It won't always reflect a particular user, since not all updates are done by users. When a change (like a property change) is made by a user, the user's email address should show up under changeSource.
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