alfresco-ng2-components/docs/core/services/jwt-helper.service.md
Francesco Corti e64eee90af [ADF-4656] Release note for ADF 3.3 in draft. (#4857)
* [ADF-4658] Release note for ADF 3.3.

* License info update.

* Version index issue.

* release note
2019-06-18 10:01:52 +01:00

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---
Title: JWT helper service
Added: v3.0.0
Status: Active
Last reviewed: 2019-01-09
---
# [JWT helper service](../../../lib/core/services/jwt-helper.service.ts "Defined in jwt-helper.service.ts")
Decodes a JSON Web Token (JWT) to a JavaScript object.
## Class members
### Methods
- **decodeToken**(token: `any`): `Object`<br/>
Decodes a JSON web token into a JS object.
- _token:_ `any` - Token in encoded form
- **Returns** `Object` - Decoded token data object
- **getValueFromLocalAccessToken**(key: `string`)<br/>
Gets a named value from the user access token.
- _key:_ `string` - Key name of the field to retrieve
- **getValueFromToken**(accessToken: `string`, key: `string`)<br/>
Gets a named value from the user access token.
- _accessToken:_ `string` -
- _key:_ `string` -
## Details
JWT is a standard for sending data securely that ADF uses during the
OAuth2 authentication procedure. See the [JWT website](https://jwt.io/)
for full details of the standard and its uses.
## See also
- [Identity user service](identity-user.service.md)