Struct OAuthConfig 

pub struct OAuthConfig {
    pub issuer: Option<String>,
    pub mcp_server_url: Option<String>,
    pub client_id: Option<String>,
    pub client_name: Option<String>,
    pub dcr_enabled: bool,
    pub scopes: Vec<String>,
    pub cache_file: Option<PathBuf>,
    pub redirect_port: u16,
}

OAuth configuration for CLI authentication flows.

Migration note (pmcp 2.5.0)

client_id changed from String to Option<String> to support RFC 7591 Dynamic Client Registration. Existing callers that passed a pre-registered id must now wrap it in Some(...):

// Before (pmcp < 2.5.0):
OAuthConfig { client_id: "my-client".to_string(), /* ... */ }
// After (pmcp 2.5.0+):
OAuthConfig {
    client_id: Some("my-client".to_string()),
    client_name: None,
    dcr_enabled: false,
    /* ... */
}

Fields

issuer: Option<String>

OAuth issuer URL (e.g., https://auth.example.com). If None, will auto-discover from MCP server URL.

mcp_server_url: Option<String>

MCP server URL for auto-discovery (required if issuer is None).

client_id: Option<String>

OAuth client ID. When None and dcr_enabled is true and the discovery metadata advertises a registration_endpoint, the SDK auto-performs RFC 7591 Dynamic Client Registration to obtain one.

client_name: Option<String>

Client name advertised to the authorization server during DCR (RFC 7591 §2). Only consulted when DCR fires. Falls back to the literal "pmcp-sdk" if None at DCR time.

dcr_enabled: bool

Enable RFC 7591 Dynamic Client Registration when client_id is None and the server advertises a registration_endpoint. Defaults to true via Default::default(); set to false to opt out and require an explicit client_id.

scopes: Vec<String>

OAuth scopes to request.

cache_file: Option<PathBuf>

Cache file path for storing tokens.

redirect_port: u16

Redirect port for localhost callback (default: 8080).

Trait Implementations

impl Clone for OAuthConfig

fn clone(&self) -> OAuthConfig

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for OAuthConfig

fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter.

impl Default for OAuthConfig

fn default() -> OAuthConfig

Returns the “default value” for a type.