Struct PoolConfig 

pub struct PoolConfig {
    pub max_idle_per_host: Option<usize>,
    pub max_idle_total: usize,
    pub idle_timeout: Duration,
    pub tcp_keepalive: Option<Duration>,
    pub tcp_nodelay: bool,
    pub max_response_size: usize,
}

Configuration for HTTP connection pooling.

Controls how connections are reused across requests for better performance.

Fields

max_idle_per_host: Option<usize>

Maximum number of idle connections per host. Default: unlimited (no limit)

max_idle_total: usize

Maximum total idle connections in the pool. Default: 100

idle_timeout: Duration

How long to keep idle connections alive. Default: 90 seconds

tcp_keepalive: Option<Duration>

Whether to enable TCP keepalive. Default: true

tcp_nodelay: bool

Whether to enable TCP nodelay (disable Nagle’s algorithm). Default: true

max_response_size: usize

Maximum response body size in bytes. Default: 100 MB (104_857_600 bytes)

Security

This limit helps prevent memory exhaustion from extremely large responses. The Aptos API responses are typically much smaller than this limit.

Implementations

impl PoolConfig

pub fn builder() -> PoolConfigBuilder

Creates a new pool configuration builder.

pub fn high_throughput() -> Self

Creates a configuration optimized for high-throughput scenarios.

• More idle connections
• Longer idle timeout
• TCP keepalive enabled

pub fn low_latency() -> Self

Creates a configuration optimized for low-latency scenarios.

• Fewer idle connections (fresher connections)
• Shorter idle timeout
• TCP nodelay enabled

pub fn minimal() -> Self

Creates a minimal configuration for constrained environments.

• Minimal idle connections
• Short idle timeout

Trait Implementations

impl Clone for PoolConfig

fn clone(&self) -> PoolConfig

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for PoolConfig

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

Formats the value using the given formatter.

impl Default for PoolConfig

fn default() -> Self

Returns the “default value” for a type.