Enum TimeInForce 

pub enum TimeInForce {
    GTC,
    IOC,
    FOK,
    PostOnly,
}

Specifies the time-in-force policy for an order, controlling how long it remains active.

Time-in-force (TIF) dictates the duration an order stays open before it is executed or canceled. In perpetual futures trading, TIF is critical for managing order execution in volatile markets. For example:

• GTC (Good Till Canceled): Remains active until filled or manually canceled, suitable for patient strategies.
• IOC (Immediate or Cancel): Executes immediately, with any unfilled portion canceled, ideal for high-frequency trading.
• FOK (Fill or Kill): Must be fully filled immediately or canceled, used for large orders needing guaranteed execution.
• PostOnly: Ensures the order adds liquidity (maker order) and cancels if it would take liquidity, useful for fee optimization.

Bots must carefully select TIF based on strategy. For instance, a PostOnly order can reduce fees but may fail in fast-moving markets, impacting profitability.

Variants

GTC

Good Till Canceled: Order remains active until filled or canceled.

IOC

Immediate or Cancel: Executes immediately, with unfilled portion canceled.

FOK

Fill or Kill: Must be fully filled immediately or canceled.

PostOnly

Post Only: Ensures the order is a maker order, cancels if it would be a taker.

Implementations

impl TimeInForce

pub fn as_str(&self) -> &str

Converts the TimeInForce enum to its string representation.

Returns the string format expected by Bybit’s API, such as “GTC” or “PostOnly”. Bots should use this method to ensure API compatibility when setting TIF.

Trait Implementations

impl Clone for TimeInForce

fn clone(&self) -> TimeInForce

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for TimeInForce

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

Formats the value using the given formatter.

impl Default for TimeInForce

fn default() -> TimeInForce

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for TimeInForce

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for TimeInForce

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

where __S: Serializer,

Serialize this value into the given Serde serializer.