Middleware

The following table lists middleware components supported by Dapr. Learn how to customize processing pipelines and set up middleware components.

Table headers to note:

Header	Description	Example
Status	Component certification status	Alpha Beta Stable
Component version	The version of the component	v1
Since runtime version	The version of the Dapr runtime when the component status was set or updated	1.11

HTTP

Component	Description	Status	Component version
OAuth2 Authorization Grant flow	Enables the OAuth2 Authorization Grant flow on a Web API	Alpha	v1
OAuth2 Client Credentials Grant flow	Enables the OAuth2 Client Credentials Grant flow on a Web API	Alpha	v1
OpenID Connect	Verifies a Bearer Token using OpenID Connect on a Web API	Stable	v1
Rate limit	Restricts the maximum number of allowed HTTP requests per second	Stable	v1
Rego/OPA Policies	Applies Rego/OPA Policies to incoming Dapr HTTP requests	Alpha	v1
Router Alias	Use Router Alias to map arbitrary HTTP routes to valid Dapr API endpoints	Alpha	v1
RouterChecker	Use RouterChecker middleware to block invalid http request routing	Alpha	v1
Sentinel	Use Sentinel middleware to guarantee the reliability and resiliency of your application	Alpha	v1
Uppercase	Converts the body of the request to uppercase letters (demo)	Stable	v1
Wasm	Use Wasm middleware in your HTTP pipeline	Alpha	v1