Enum ProgressToken 

pub enum ProgressToken {
    String(String),
    Integer(i64),
}

Progress token for tracking long-running operations

Per MCP 2025-06-18 specification, progress tokens can be either strings or integers to provide flexibility in how clients and servers track long-running operations.

Variants

String(String)

String-based progress token

Integer(i64)

Integer-based progress token

Implementations

impl ProgressToken

pub fn from_string<S: Into<String>>(s: S) -> Self

Create a new string-based progress token

pub fn from_integer(i: i64) -> Self

Create a new integer-based progress token

pub fn is_string(&self) -> bool

Check if this is a string token

pub fn is_integer(&self) -> bool

Check if this is an integer token

pub fn as_string(&self) -> Option<&str>

Get the string value if this is a string token

pub fn as_integer(&self) -> Option<i64>

Get the integer value if this is an integer token

pub fn to_display_string(&self) -> String

Convert to a string representation for display/logging

Trait Implementations

impl Clone for ProgressToken

fn clone(&self) -> ProgressToken

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ProgressToken

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for ProgressToken

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Display for ProgressToken

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

Formats the value using the given formatter.

impl From<&str> for ProgressToken

fn from(s: &str) -> Self

Converts to this type from the input type.

impl From<String> for ProgressToken

fn from(s: String) -> Self

Converts to this type from the input type.

impl From<i32> for ProgressToken

fn from(i: i32) -> Self

Converts to this type from the input type.

impl From<i64> for ProgressToken

fn from(i: i64) -> Self

Converts to this type from the input type.

impl From<u32> for ProgressToken

fn from(i: u32) -> Self

Converts to this type from the input type.

impl Hash for ProgressToken

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for ProgressToken

fn eq(&self, other: &ProgressToken) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Serialize for ProgressToken

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Eq for ProgressToken

impl StructuralPartialEq for ProgressToken