Struct SubscribeConfig 

pub struct SubscribeConfig {
    pub replay_from_slot: Option<i64>,
    pub compression: Option<Compression>,
}

Cross-cutting subscribe options the client sets in the config object.

Fields

replay_from_slot: Option<i64>

Last slot the client already processed. On reconnect the server replays from this slot (inclusive) rather than streaming the full history.

compression: Option<Compression>

Notification-frame compression the client opted into. None keeps the uncompressed Text path.

Implementations

impl SubscribeConfig

pub fn from_value(config: Option<&Value>) -> Self

Parse the cross-cutting options out of a subscribe config object. Per-kind fields are ignored, and a missing or malformed object yields defaults (all off), so a subscribe never fails on these optional fields.

pub fn apply_to(&self, params: &mut Value)

Merge the set options into a subscribe request’s config object (the second positional param), leaving its per-kind fields untouched. A no-op if the params don’t have a config object.

Trait Implementations

impl Clone for SubscribeConfig

fn clone(&self) -> SubscribeConfig

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for SubscribeConfig

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

Formats the value using the given formatter.

impl Default for SubscribeConfig

fn default() -> SubscribeConfig

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for SubscribeConfig

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Eq for SubscribeConfig

impl PartialEq for SubscribeConfig

fn eq(&self, other: &SubscribeConfig) -> 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 SubscribeConfig

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for SubscribeConfig