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Bearer

Use bearer middleware to secure HTTP endpoints by verifying bearer tokens

The bearer HTTP middleware verifies a Bearer Token using OpenID Connect on a Web API, without modifying the application. This design separates authentication/authorization concerns from the application, so that application operators can adopt and configure authentication/authorization providers without impacting the application code.

Component format

apiVersion: dapr.io/v1alpha1
kind: Component
metadata:
  name: bearer-token
spec:
  type: middleware.http.bearer
  version: v1
  metadata:
    - name: audience
      value: "<your token audience; i.e. the application's client ID>"
    - name: issuer
      value: "<your token issuer, e.g. 'https://accounts.google.com'>"

    # Optional values
    - name: jwksURL
      value: "<JWKS URL, e.g. 'https://accounts.google.com/.well-known/openid-configuration'>"

Spec metadata fields

Field Required Details Example
audience Y The audience expected in the tokens. Usually, this corresponds to the client ID of your application that is created as part of a credential hosted by a OpenID Connect platform.
issuer Y The issuer authority, which is the value expected in the issuer claim in the tokens. "https://accounts.google.com"
jwksURL N Address of the JWKS (JWK Set containing the public keys for verifying tokens). If empty, will try to fetch the URL set in the OpenID Configuration document <issuer>/.well-known/openid-configuration. "https://accounts.google.com/.well-known/openid-configuration"

Common values for issuer include:

  • Auth0: https://{domain}, where {domain} is the domain of your Auth0 application
  • Microsoft Entra ID: https://login.microsoftonline.com/{tenant}/v2.0, where {tenant} should be replaced with the tenant ID of your application, as a UUID
  • Google: https://accounts.google.com
  • Salesforce (Force.com): https://login.salesforce.com

Dapr configuration

To be applied, the middleware must be referenced in configuration. See middleware pipelines.

apiVersion: dapr.io/v1alpha1
kind: Configuration
metadata:
  name: appconfig
spec:
  httpPipeline:
    handlers:
    - name: bearer-token
      type: middleware.http.bearer

Last modified March 13, 2024: Update middleware-bearer.md (a72e283b)