Enum StickinessPolicy 

pub enum StickinessPolicy {
    StickyForever,
    StickyForTtl {
        ttl: Duration,
    },
    StickyForRequestCount {
        max_requests: u32,
    },
    FreshPerRequest,
    FreshPerDomain,
}

Session stickiness policy keyed by anti-bot VendorId.

Different vendors reward different proxy-rotation cadences:

• Akamai accumulates trust on a consistent ISP IP, so the session should be sticky for the whole scrape lifetime.
• Cloudflare re-issues cf_clearance cookies on a short cadence, so a 5 min sticky window matches the re-issue cadence and avoids burning the cookie on a single use.
• PerimeterX / Kasada flag frequent proxy changes on the same domain, so each domain request should pick a fresh proxy.
• DataDome doesn’t care about stickiness — it scores mobile carriers above all else — so the safe default is fresh per request.
• Everything else falls back to FreshPerRequest so an unknown vendor can never inherit a permissive sticky policy by accident.

Copy + Eq + Hash + Display + Debug for ergonomic logging and use as a value type.

Example

use std::time::Duration;
use stygian_proxy::stickiness::StickinessPolicy;
assert_eq!(
    StickinessPolicy::StickyForTtl { ttl: Duration::from_mins(30) },
    StickinessPolicy::StickyForTtl { ttl: Duration::from_mins(30) }
);
assert_eq!(format!("{}", StickinessPolicy::FreshPerRequest), "fresh_per_request");

Variants

StickyForever

Pin the same proxy for the entire process lifetime (or until the bound proxy fails its circuit breaker).

StickyForTtl

Pin the same proxy for a fixed TTL; pick fresh after expiry.

Fields

ttl: Duration

How long the domain→proxy binding remains valid.

StickyForRequestCount

Pin the same proxy for at most max_requests requests; reset on each request. Not currently enforced at the SessionMap layer — the policy is treated as FreshPerRequest when consulted by acquire_session. Kept in the enum for future per-request counters.

Fields

max_requests: u32

Maximum number of requests per binding.

FreshPerRequest

Pick a fresh proxy for every request. No domain→proxy binding is created or retained.

FreshPerDomain

Pick a fresh proxy per domain request, evicting any prior binding.

The “per domain” qualifier means a request to a different domain for the same vendor reuses its own binding; a request to the same domain forces fresh.

Trait Implementations

impl Clone for StickinessPolicy

fn clone(&self) -> StickinessPolicy

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for StickinessPolicy

impl Debug for StickinessPolicy

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for StickinessPolicy

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Display for StickinessPolicy

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

Stable, lower-case wire label for log output.

Example

use std::time::Duration;
use stygian_proxy::stickiness::StickinessPolicy;
assert_eq!(format!("{}", StickinessPolicy::FreshPerRequest), "fresh_per_request");
assert_eq!(format!("{}", StickinessPolicy::StickyForever), "sticky_forever");
assert_eq!(
    format!("{}", StickinessPolicy::StickyForTtl { ttl: Duration::from_secs(60) }),
    "sticky_for_ttl(60s)"
);

impl Eq for StickinessPolicy

impl Hash for StickinessPolicy

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 StickinessPolicy

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

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 StickinessPolicy