@kamino-finance/kliquidity-sdk
Version:
Typescript SDK for interacting with the Kamino Liquidity (kliquidity) protocol
119 lines (101 loc) • 3.67 kB
text/typescript
/* 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 WhirlpoolsConfigExtensionFields {
whirlpoolsConfig: Address
configExtensionAuthority: Address
tokenBadgeAuthority: Address
}
export interface WhirlpoolsConfigExtensionJSON {
whirlpoolsConfig: string
configExtensionAuthority: string
tokenBadgeAuthority: string
}
export class WhirlpoolsConfigExtension {
readonly whirlpoolsConfig: Address
readonly configExtensionAuthority: Address
readonly tokenBadgeAuthority: Address
static readonly discriminator = Buffer.from([
2, 99, 215, 163, 240, 26, 153, 58,
])
static readonly layout = borsh.struct<WhirlpoolsConfigExtension>([
borshAddress("whirlpoolsConfig"),
borshAddress("configExtensionAuthority"),
borshAddress("tokenBadgeAuthority"),
])
constructor(fields: WhirlpoolsConfigExtensionFields) {
this.whirlpoolsConfig = fields.whirlpoolsConfig
this.configExtensionAuthority = fields.configExtensionAuthority
this.tokenBadgeAuthority = fields.tokenBadgeAuthority
}
static async fetch(
rpc: Rpc<GetAccountInfoApi>,
address: Address,
programId: Address = PROGRAM_ID
): Promise<WhirlpoolsConfigExtension | 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<WhirlpoolsConfigExtension | 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): WhirlpoolsConfigExtension {
if (!data.slice(0, 8).equals(WhirlpoolsConfigExtension.discriminator)) {
throw new Error("invalid account discriminator")
}
const dec = WhirlpoolsConfigExtension.layout.decode(data.slice(8))
return new WhirlpoolsConfigExtension({
whirlpoolsConfig: dec.whirlpoolsConfig,
configExtensionAuthority: dec.configExtensionAuthority,
tokenBadgeAuthority: dec.tokenBadgeAuthority,
})
}
toJSON(): WhirlpoolsConfigExtensionJSON {
return {
whirlpoolsConfig: this.whirlpoolsConfig,
configExtensionAuthority: this.configExtensionAuthority,
tokenBadgeAuthority: this.tokenBadgeAuthority,
}
}
static fromJSON(
obj: WhirlpoolsConfigExtensionJSON
): WhirlpoolsConfigExtension {
return new WhirlpoolsConfigExtension({
whirlpoolsConfig: address(obj.whirlpoolsConfig),
configExtensionAuthority: address(obj.configExtensionAuthority),
tokenBadgeAuthority: address(obj.tokenBadgeAuthority),
})
}
}