Derive Macro SecurityScheme

#[derive(SecurityScheme)]
{
    // Attributes available to this derive:
    #[oai]
}

Define an OpenAPI Security Scheme.

Macro parameters

Attribute	Description	Type	Optional
rename	Rename the security scheme.	string	Y
ty	The type of the security scheme. (api_key, basic, bearer, oauth2, openid_connect)	string	N
key_in	api_key The location of the API key. Valid values are “query”, “header” or “cookie”. (query, header, cookie)	string	Y
key_name	api_key The name of the header, query or cookie parameter to be used..	string	Y
bearer_format	bearer A hint to the client to identify how the bearer token is formatted. Bearer tokens are usually generated by an authorization server, so this information is primarily for documentation purposes.	string	Y
flows	oauth2 An object containing configuration information for the flow types supported.	OAuthFlows	Y
openid_connect_url	OpenId Connect URL to discover OAuth2 configuration values.	string	Y
checker	Specify a function to check the original authentication information and convert it to the return type of this function. This function must return Option<T> or poem::Result<T>, with None meaning a General Authorization error and an Err reflecting the error supplied.	string	Y

OAuthFlows

Attribute	description	Type	Optional
implicit	Configuration for the OAuth Implicit flow	OAuthFlow	Y
password	Configuration for the OAuth Resource Owner Password flow	OAuthFlow	Y
client_credentials	Configuration for the OAuth Client Credentials flow	OAuthFlow	Y
authorization_code	Configuration for the OAuth Authorization Code flow	OAuthFlow	Y

OAuthFlow

Attribute	description	Type	Optional
authorization_url	implicit authorization_code The authorization URL to be used for this flow.	string	Y
token_url	password client_credentials authorization_code The token URL to be used for this flow.	string	Y
refresh_url	The URL to be used for obtaining refresh tokens.	string	Y
scopes	The available scopes for the OAuth2 security scheme.	OAuthScopes	Y

Multiple Authentication Methods

When SecurityScheme macro is used with an enumerated type, it is used to define multiple authentication methods.

use poem_openapi::{OpenApi, SecurityScheme};
use poem_openapi::payload::PlainText;
use poem_openapi::auth::{ApiKey, Basic};

#[derive(SecurityScheme)]
#[oai(ty = "basic")]
struct MySecurityScheme1(Basic);

#[derive(SecurityScheme)]
#[oai(ty = "api_key", key_name = "X-API-Key", key_in = "header")]
struct MySecurityScheme2(ApiKey);

#[derive(SecurityScheme)]
enum MySecurityScheme {
    MySecurityScheme1(MySecurityScheme1),
    MySecurityScheme2(MySecurityScheme2),
}

struct MyApi;

#[OpenApi]
impl MyApi {
    #[oai(path = "/test", method = "get")]
    async fn test(&self, auth: MySecurityScheme) -> PlainText<String> {
        match auth {
            MySecurityScheme::MySecurityScheme1(auth) => {
                PlainText(format!("basic: {}", auth.0.username))
            }
            MySecurityScheme::MySecurityScheme2(auth) => {
                PlainText(format!("api-key: {}", auth.0.key))
            }
        }
    }
}