Skip to main content

ObligationContext

Struct ObligationContext 

Source
pub struct ObligationContext { /* private fields */ }
Expand description

A high-level context that bundles an obligation with all its reserves and auto-resolves farm accounts, providing ergonomic one-call methods for every obligation operation.

§Construction

use klend_interface::helpers::ObligationContext;

let ctx = ObligationContext::new(
    obligation_address,
    &obligation,
    &[(reserve_addr, &reserve)],
);

Implementations§

Source§

impl ObligationContext

Source

pub fn borrow( &self, owner: Pubkey, borrow_reserve: &Pubkey, user_destination_liquidity: Pubkey, amount: u64, ) -> Result<Vec<Instruction>, ObligationContextError>

Borrow liquidity from a reserve against this obligation.

Source

pub fn deposit( &self, owner: Pubkey, reserve: &Pubkey, user_source_liquidity: Pubkey, amount: u64, ) -> Result<Vec<Instruction>, ObligationContextError>

Deposit liquidity into a reserve and credit collateral to this obligation.

Source

pub fn withdraw( &self, owner: Pubkey, reserve: &Pubkey, user_destination_liquidity: Pubkey, collateral_amount: u64, ) -> Result<Vec<Instruction>, ObligationContextError>

Withdraw collateral from this obligation and redeem it for liquidity.

Source

pub fn withdraw_collateral( &self, owner: Pubkey, reserve: &Pubkey, user_destination_collateral: Pubkey, collateral_amount: u64, ) -> Result<Vec<Instruction>, ObligationContextError>

Withdraw collateral (cTokens) from this obligation without redeeming.

Source

pub fn repay( &self, owner: Pubkey, reserve: &Pubkey, user_source_liquidity: Pubkey, amount: u64, ) -> Result<Vec<Instruction>, ObligationContextError>

Repay borrowed liquidity.

Source

pub fn repay_and_withdraw( &self, owner: Pubkey, repay_reserve: &Pubkey, withdraw_reserve: &Pubkey, user_source_liquidity: Pubkey, user_destination_liquidity: Pubkey, repay_amount: u64, withdraw_collateral_amount: u64, ) -> Result<Vec<Instruction>, ObligationContextError>

Atomically repay a borrow, withdraw collateral, and redeem it for liquidity.

Source

pub fn deposit_and_withdraw( &self, owner: Pubkey, deposit_reserve: &Pubkey, withdraw_reserve: &Pubkey, user_source_liquidity: Pubkey, user_destination_liquidity: Pubkey, deposit_amount: u64, withdraw_collateral_amount: u64, ) -> Result<Vec<Instruction>, ObligationContextError>

Atomically deposit to one reserve and withdraw from another (rebalancing).

Source

pub fn liquidate( &self, liquidator: Pubkey, repay_reserve: &Pubkey, withdraw_reserve: &Pubkey, user_source_liquidity: Pubkey, user_destination_collateral: Pubkey, user_destination_liquidity: Pubkey, amount: u64, min_received: u64, max_ltv_override: u64, ) -> Result<Vec<Instruction>, ObligationContextError>

Liquidate an undercollateralized obligation.

Source

pub fn request_elevation_group( &self, owner: Pubkey, elevation_group: u8, ) -> Vec<Instruction>

Request an elevation group change for this obligation.

Source§

impl ObligationContext

Source

pub fn new( obligation_address: Pubkey, obligation: &Obligation, reserves: &[(Pubkey, &Reserve)], ) -> Self

Build a context from deserialized on-chain accounts.

Source

pub fn reserve_addresses_for_obligation( obligation_data: &[u8], ) -> Result<Vec<Pubkey>, AccountDataError>

Parse an obligation and return the unique reserve addresses that must be fetched to build a complete context.

Typical RPC flow:

  1. Fetch the obligation account
  2. Call reserve_addresses_for_obligation to discover which reserves are needed
  3. Fetch those reserve accounts (e.g. getMultipleAccounts)
  4. Call ObligationContext::from_account_data with both
Source

pub fn from_account_data( obligation_address: Pubkey, obligation_data: &[u8], reserves: &[(Pubkey, &[u8])], ) -> Result<Self, AccountDataError>

Build a context from raw on-chain account data bytes.

reserves must include an entry for every reserve referenced by the obligation (see ObligationContext::reserve_addresses_for_obligation). Extra reserves are allowed and will be available for lookups.

Source

pub fn from_infos( lending_market: Pubkey, obligation: ObligationInfo, reserves: &[ReserveInfo], ) -> Self

Build a context from pre-built ReserveInfo values (no farm auto-resolution).

Use this when you already have ReserveInfo and ObligationInfo constructed from another source, or when farm accounts are not needed.

Source

pub fn obligation(&self) -> &ObligationInfo

Get the obligation info.

Source

pub fn reserve_info(&self, address: &Pubkey) -> Option<&ReserveInfo>

Look up a reserve by address.

Trait Implementations§

Source§

impl Clone for ObligationContext

Source§

fn clone(&self) -> ObligationContext

Returns a duplicate of the value. Read more
1.0.0 (const: unstable) · Source§

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

Performs copy-assignment from source. Read more
Source§

impl Debug for ObligationContext

Source§

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

Formats the value using the given formatter. Read more

Auto Trait Implementations§

Blanket Implementations§

Source§

impl<T> Any for T
where T: 'static + ?Sized,

Source§

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
Source§

impl<T> Az for T

Source§

fn az<Dst>(self) -> Dst
where T: Cast<Dst>,

Casts the value.
Source§

impl<T> Borrow<T> for T
where T: ?Sized,

Source§

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
Source§

impl<T> BorrowMut<T> for T
where T: ?Sized,

Source§

fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
Source§

impl<Src, Dst> CastFrom<Src> for Dst
where Src: Cast<Dst>,

Source§

fn cast_from(src: Src) -> Dst

Casts the value.
Source§

impl<T> CheckedAs for T

Source§

fn checked_as<Dst>(self) -> Option<Dst>
where T: CheckedCast<Dst>,

Casts the value.
Source§

impl<Src, Dst> CheckedCastFrom<Src> for Dst
where Src: CheckedCast<Dst>,

Source§

fn checked_cast_from(src: Src) -> Option<Dst>

Casts the value.
Source§

impl<T> CloneToUninit for T
where T: Clone,

Source§

unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. Read more
Source§

impl<T> From<T> for T

Source§

fn from(t: T) -> T

Returns the argument unchanged.

Source§

impl<T, U> Into<U> for T
where U: From<T>,

Source§

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

Source§

impl<Src, Dst> LosslessTryInto<Dst> for Src
where Dst: LosslessTryFrom<Src>,

Source§

fn lossless_try_into(self) -> Option<Dst>

Performs the conversion.
Source§

impl<Src, Dst> LossyInto<Dst> for Src
where Dst: LossyFrom<Src>,

Source§

fn lossy_into(self) -> Dst

Performs the conversion.
Source§

impl<T> OverflowingAs for T

Source§

fn overflowing_as<Dst>(self) -> (Dst, bool)
where T: OverflowingCast<Dst>,

Casts the value.
Source§

impl<Src, Dst> OverflowingCastFrom<Src> for Dst
where Src: OverflowingCast<Dst>,

Source§

fn overflowing_cast_from(src: Src) -> (Dst, bool)

Casts the value.
Source§

impl<T> Same for T

Source§

type Output = T

Should always be Self
Source§

impl<T> SaturatingAs for T

Source§

fn saturating_as<Dst>(self) -> Dst
where T: SaturatingCast<Dst>,

Casts the value.
Source§

impl<Src, Dst> SaturatingCastFrom<Src> for Dst
where Src: SaturatingCast<Dst>,

Source§

fn saturating_cast_from(src: Src) -> Dst

Casts the value.
Source§

impl<T> ToOwned for T
where T: Clone,

Source§

type Owned = T

The resulting type after obtaining ownership.
Source§

fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
Source§

fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
Source§

impl<T, U> TryFrom<U> for T
where U: Into<T>,

Source§

type Error = Infallible

The type returned in the event of a conversion error.
Source§

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
Source§

impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

Source§

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
Source§

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
Source§

impl<T> UnwrappedAs for T

Source§

fn unwrapped_as<Dst>(self) -> Dst
where T: UnwrappedCast<Dst>,

Casts the value.
Source§

impl<Src, Dst> UnwrappedCastFrom<Src> for Dst
where Src: UnwrappedCast<Dst>,

Source§

fn unwrapped_cast_from(src: Src) -> Dst

Casts the value.
Source§

impl<T> WrappingAs for T

Source§

fn wrapping_as<Dst>(self) -> Dst
where T: WrappingCast<Dst>,

Casts the value.
Source§

impl<Src, Dst> WrappingCastFrom<Src> for Dst
where Src: WrappingCast<Dst>,

Source§

fn wrapping_cast_from(src: Src) -> Dst

Casts the value.