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@kamino-finance/kliquidity-sdk

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Typescript SDK for interacting with the Kamino Liquidity (kliquidity) protocol

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/* eslint-disable @typescript-eslint/no-unused-vars */ import { address, Address, fetchEncodedAccount, fetchEncodedAccounts, GetAccountInfoApi, GetMultipleAccountsApi, Rpc, } from "@solana/kit" /* eslint-enable @typescript-eslint/no-unused-vars */ import BN from "bn.js" // eslint-disable-line @typescript-eslint/no-unused-vars import * as borsh from "@coral-xyz/borsh" // eslint-disable-line @typescript-eslint/no-unused-vars import { borshAddress } from "../utils" // eslint-disable-line @typescript-eslint/no-unused-vars import * as types from "../types" // eslint-disable-line @typescript-eslint/no-unused-vars import { PROGRAM_ID } from "../programId" export interface TokenBadgeFields { whirlpoolsConfig: Address tokenMint: Address } export interface TokenBadgeJSON { whirlpoolsConfig: string tokenMint: string } export class TokenBadge { readonly whirlpoolsConfig: Address readonly tokenMint: Address static readonly discriminator = Buffer.from([ 116, 219, 204, 229, 249, 116, 255, 150, ]) static readonly layout = borsh.struct<TokenBadge>([ borshAddress("whirlpoolsConfig"), borshAddress("tokenMint"), ]) constructor(fields: TokenBadgeFields) { this.whirlpoolsConfig = fields.whirlpoolsConfig this.tokenMint = fields.tokenMint } static async fetch( rpc: Rpc<GetAccountInfoApi>, address: Address, programId: Address = PROGRAM_ID ): Promise<TokenBadge | null> { const info = await fetchEncodedAccount(rpc, address) if (!info.exists) { return null } if (info.programAddress !== programId) { throw new Error("account doesn't belong to this program") } return this.decode(Buffer.from(info.data)) } static async fetchMultiple( rpc: Rpc<GetMultipleAccountsApi>, addresses: Address[], programId: Address = PROGRAM_ID ): Promise<Array<TokenBadge | null>> { const infos = await fetchEncodedAccounts(rpc, addresses) return infos.map((info) => { if (!info.exists) { return null } if (info.programAddress !== programId) { throw new Error("account doesn't belong to this program") } return this.decode(Buffer.from(info.data)) }) } static decode(data: Buffer): TokenBadge { if (!data.slice(0, 8).equals(TokenBadge.discriminator)) { throw new Error("invalid account discriminator") } const dec = TokenBadge.layout.decode(data.slice(8)) return new TokenBadge({ whirlpoolsConfig: dec.whirlpoolsConfig, tokenMint: dec.tokenMint, }) } toJSON(): TokenBadgeJSON { return { whirlpoolsConfig: this.whirlpoolsConfig, tokenMint: this.tokenMint, } } static fromJSON(obj: TokenBadgeJSON): TokenBadge { return new TokenBadge({ whirlpoolsConfig: address(obj.whirlpoolsConfig), tokenMint: address(obj.tokenMint), }) } }