@kamino-finance/klend-sdk
Version:
Typescript SDK for interacting with the Kamino Lending (klend) protocol
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text/typescript
import { TransactionInstruction, PublicKey, AccountMeta } from "@solana/web3.js" // eslint-disable-line @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 * as types from "../types" // eslint-disable-line @typescript-eslint/no-unused-vars
import { PROGRAM_ID } from "../programId"
export interface InitReferrerStateAndShortUrlArgs {
shortUrl: string
}
export interface InitReferrerStateAndShortUrlAccounts {
referrer: PublicKey
referrerState: PublicKey
referrerShortUrl: PublicKey
referrerUserMetadata: PublicKey
rent: PublicKey
systemProgram: PublicKey
}
export const layout = borsh.struct([borsh.str("shortUrl")])
export function initReferrerStateAndShortUrl(
args: InitReferrerStateAndShortUrlArgs,
accounts: InitReferrerStateAndShortUrlAccounts,
programId: PublicKey = PROGRAM_ID
) {
const keys: Array<AccountMeta> = [
{ pubkey: accounts.referrer, isSigner: true, isWritable: true },
{ pubkey: accounts.referrerState, isSigner: false, isWritable: true },
{ pubkey: accounts.referrerShortUrl, isSigner: false, isWritable: true },
{
pubkey: accounts.referrerUserMetadata,
isSigner: false,
isWritable: false,
},
{ pubkey: accounts.rent, isSigner: false, isWritable: false },
{ pubkey: accounts.systemProgram, isSigner: false, isWritable: false },
]
const identifier = Buffer.from([165, 19, 25, 127, 100, 55, 31, 90])
const buffer = Buffer.alloc(1000)
const len = layout.encode(
{
shortUrl: args.shortUrl,
},
buffer
)
const data = Buffer.concat([identifier, buffer]).slice(0, 8 + len)
const ix = new TransactionInstruction({ keys, programId, data })
return ix
}