@convergence-rfq/beet-solana

Solana specific extension for beet, the borsh compatible de/serializer

API

Please find the API docs here.

GPA Builders

solana-beet uses beets knowledge about account layouts to provide GpaBuilders for
them which allow to filter by account data size and content.

1. Create a GPA Builder via const gpaBuilder = GpaBuilder.fromStruct(programId, accountStruct)
2. add filters via gpaBuilder.dataSize, gpaBuilder.addFilter or gpaBuilder.addInnerFilter
3. execute gpaBuilder.run(connection) which will return all accounts matching the specified
filters

$3

#### Simple struct with primitives

``ts
export type ResultsArgs = Pick
export class Results {
constructor(
readonly win: number,
readonly totalWin: number,
readonly losses: number
) {}

static readonly struct = new BeetStruct(
[
['win', u8],
['totalWin', u16],
['losses', i32],
],
(args: ResultsArgs) => new Results(args.win!, args.totalWin!, args.losses!),
'Results'
)
}

const gpaBuilder = GpaBuilder.fromStruct(PROGRAM_ID, Results.struct)
const accounts = await gpaBuilder
.addFilter('totalWin', 8)
.addFilter('losses', -7)
.run()
`

#### Matching on Complete Nested Struct

_Using Results struct from above_

`ts
export type TraderArgs = Pick
export class Trader {
constructor(
readonly name: string,
readonly results: Results,
readonly age: number
) {}

static readonly struct = new BeetStruct(
[
['name', fixedSizeUtf8String(4)],
['results', Results.struct],
['age', u8],
],
(args) => new Trader(args.name!, args.results!, args.age!),
'Trader'
)
}

const gpaBuilder = GpaBuilder.fromStruct(PROGRAM_ID, Trader.struct)

const results = {
win: 3,
totalWin: 4,
losses: -100,
}

const accounts = await gpaBuilder.addFilter('results', results).run()
`

#### Matching on Part of Nested Struct

_Using Trader struct from above_

`ts
const gpaBuilder = GpaBuilder.fromStruct(PROGRAM_ID, Trader.struct)

const account = await gpaBuilder
.addInnerFilter('results.totalWin', 8)
.addInnerFilter('results.win', 2)
.run()
`

PublicKey

solana-beet provides a de/serializer for solana public keys.
They can either be used directly or as part of a struct.

$3

#### Using PublicKey Directly

`ts
import { publicKey } from '@convergence-rfq/beet-solana'

const generatedKey = Keypair.generate().publicKey
const buf = Buffer.alloc(publicKey.byteSize)
beet.write(buf, 0, generatedKey)
beet.read(buf, 0) // same as generatedKey
`

#### PublicKey as part of a Struct Configuration

`ts
import * as web3 from '@solana/web3.js'
import * as beet from '@convergence-rfq/beet'
import * as beetSolana from '@convergence-rfq/beet-solana'

type InstructionArgs = {
authority: web3.PublicKey
}

const createStruct = new beet.BeetArgsStruct(
[['authority', beetSolana.publicKey]],
'InstructionArgs'
)
``

LICENSE

Apache-2.0