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title: Making API calls using the access token and refresh...
description: A walkthrough shows how to retrieve and refresh OAuth access and refresh tokens stored in an ASP.NET Core authentication cookie after a user signs in via an...
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# Making API calls using the access token and refresh token from an ASP.NET Core authentication handler

**[Maarten Balliauw](https://daily.dev/sources/maartenballiauw)** · 4 min read · 0 upvotes · 0 comments

## Summary

A walkthrough shows how to retrieve and refresh OAuth access and refresh tokens stored in an ASP.NET Core authentication cookie after a user signs in via an OAuth-based handler (such as one built for JetBrains Space). It demonstrates using HttpContext.GetTokenAsync and HttpContext.AuthenticateAsync to read tokens, and AuthenticationProperties.UpdateTokenValue to write refreshed tokens back into the cookie, with a working example calling a Space API client. The author notes this requires too much boilerplate per API call and points to IdentityModel.AspNetCore as a project working on transparent token management.

## Full article

daily.dev links to this article rather than hosting it. Read it at the original source: <https://blog.maartenballiauw.be/posts/2020-01-13-making-api-calls-using-the-access-token-and-refresh-token-from-an-aspnet-core-authentication-handler>

## Questions this post answers

### How do I get the OAuth access token from HttpContext in an ASP.NET Core authentication handler?

Call the GetTokenAsync extension method on HttpContext, passing the token name such as access_token, refresh_token, or expires_at. These values are automatically available because ASP.NET Core authentication handlers store them in the authentication cookie when SaveTokens is set to true during AddCookie/AddOAuth configuration.

_Developers wiring up OAuth token refresh flows can compare approaches like this on daily.dev._

### How can I update the access token and refresh token stored in an ASP.NET Core authentication cookie after refreshing them?

Call HttpContext.AuthenticateAsync to get the AuthenticationProperties, then use Properties.UpdateTokenValue for access_token, refresh_token, and expires_at with the newly refreshed values. This updates the values held in the authentication cookie so subsequent requests use the refreshed tokens without re-authenticating the user.

_Anyone debugging token refresh logic in cookie-based auth can find similar patterns on daily.dev._

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---

Tags: [#authentication](https://daily.dev/tags/authentication), [#c#](https://daily.dev/tags/c#), [#aspnet](https://daily.dev/tags/aspnet)

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