From 1d8788dec753b7f050d3a57c884d4fea7e815c70 Mon Sep 17 00:00:00 2001 From: Albatross Date: Thu, 23 Jul 2026 13:41:20 +0000 Subject: [PATCH] Albatross SDK --- .gitignore | 3 + README.md | 116 ++++ package-lock.json | 1473 +++++++++++++++++++++++++++++++++++++++++++++ package.json | 43 ++ src/index.ts | 399 ++++++++++++ tsconfig.json | 14 + 6 files changed, 2048 insertions(+) create mode 100644 .gitignore create mode 100644 README.md create mode 100644 package-lock.json create mode 100644 package.json create mode 100644 src/index.ts create mode 100644 tsconfig.json diff --git a/.gitignore b/.gitignore new file mode 100644 index 0000000..3c25e1e --- /dev/null +++ b/.gitignore @@ -0,0 +1,3 @@ +node_modules/ +dist/ +*.log diff --git a/README.md b/README.md new file mode 100644 index 0000000..aed1b5e --- /dev/null +++ b/README.md @@ -0,0 +1,116 @@ +# @usealbatross/sdk + +Official SDK for [Albatross](https://albatrossprotocol.com), the privacy protocol on Solana. + +Move SOL privately with the bridge, or send SOL to anyone with a single unlinkable +Ghost Link. No wallet connection, no signup, noncustodial. + +```bash +npm install @usealbatross/sdk +``` + +## Quick start + +```ts +import { Albatross } from '@usealbatross/sdk' + +const albatross = new Albatross() + +// 1. Create a private bridge +const bridge = await albatross.createBridge({ + amount: 1, // SOL the recipient receives (0.1, 0.5, 1 or 5) + destination: 'YourCleanWallet…', +}) + +console.log(`Send ${bridge.depositSol} SOL to ${bridge.depositAddress}`) + +// 2. Wait until the payout lands +const result = await albatross.waitForBridge(bridge.id, { + onUpdate: (s) => console.log(s.status), +}) + +console.log('Done:', result.payoutSignature) +``` + +Even shorter, with the one shot helper: + +```ts +const { bridge, wait } = await albatross.bridge({ amount: 1, destination }) +console.log(`Send ${bridge.depositSol} SOL to ${bridge.depositAddress}`) +const done = await wait() +``` + +## Ghost Links + +Send SOL to anyone with just a link. No address, no wallet connect, no onchain trail +between sender and receiver. The claim secret lives only in the URL fragment and is +never sent to or stored by the server. + +```ts +import { Albatross } from '@usealbatross/sdk' + +const albatross = new Albatross() + +// 1. Create a Ghost Link (secret + claim URL are generated locally) +const { link, claimUrl } = await albatross.createGhostLink({ + amount: 0.5, // SOL the receiver claims (0.1, 0.5, 1 or 5) + refundAddress: 'YourWallet…', // where funds return if never claimed + note: 'gm 👻', // optional, shown to the receiver +}) + +console.log(`Fund it: send ${link.depositSol} SOL to ${link.depositAddress}`) +console.log(`Then share: ${claimUrl}`) // keep this safe — it can never be recovered + +// 2. The receiver claims to any wallet +await albatross.claimFromUrl(claimUrl, 'ReceiverWallet…') +``` + +⚠️ The `secret` and `claimUrl` are never stored server side and cannot be recovered. +Persist or share them the moment you create the link. + +## How the bridge works + +You send SOL to the fresh `depositAddress`. Albatross detects it and pays the same +amount to your `destination` from an unrelated wallet. The two transfers are never +linked onchain. The fee is 0.5%, added on top of the amount. Ghost Links work the +same way, but the payout goes to whoever claims the link. + +## API + +### `new Albatross(options?)` + +| Option | Type | Default | +|---|---|---| +| `baseUrl` | `string` | `https://backend.albatrossprotocol.com/api` | +| `appUrl` | `string` | `https://albatrossprotocol.com` | +| `fetch` | `typeof fetch` | global `fetch` | + +### Bridge methods + +- `createBridge({ amount, destination })` → `Bridge` — create a bridge, returns the deposit address. +- `getBridge(id)` → `BridgeState` — fetch current status. +- `waitForBridge(id, opts?)` → `BridgeState` — poll until terminal (`completed`, `refunded`, `failed`, `expired`). +- `bridge({ amount, destination })` → `{ bridge, wait() }` — create and get a ready `wait()` helper. +- `getAmounts()` → `{ amounts, feeBps }` — selectable amounts and fee. +- `getStats()` → `{ bridges, volumeSol, fundingWallets, feeBps }` — network stats. + +### Ghost Link methods + +- `createGhostLink({ amount, refundAddress, note? })` → `{ link, secret, claimUrl }` — create a link locally hashing the secret. +- `getGhostLink(id)` → `GhostLinkState` — fetch current status. +- `claimGhostLink({ id, secret, destination })` → claim to a wallet. +- `claimFromUrl(claimUrl, destination)` → parse a claim URL and claim it. +- `waitForGhostLink(id, opts?)` → poll until terminal (`claimed`, `refunded`, `failed`, `expired`). +- `getGhostAmounts()` → `{ amounts, feeBps, claimExpiryDays }`. +- `buildClaimUrl(id, secret)` → build a shareable claim URL. +- `generateClaimSecret()` (named export) → `{ secret, secretHash }` low level helper. + +### Statuses + +Bridge: `awaiting_deposit` → `paying_out` → `completed`, or `refunded` / `failed` / `expired`. + +Ghost Link: `awaiting_deposit` → `funded` → `claiming` → `claimed`, or `refunded` / `failed` / `expired`. + +## License + +MIT diff --git a/package-lock.json b/package-lock.json new file mode 100644 index 0000000..a478a85 --- /dev/null +++ b/package-lock.json @@ -0,0 +1,1473 @@ +{ + "name": 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0000000..ad455f5 --- /dev/null +++ b/package.json @@ -0,0 +1,43 @@ +{ + "name": "@usealbatross/sdk", + "version": "0.2.0", + "description": "Official SDK for Albatross, the privacy protocol on Solana. Private bridging and unlinkable Ghost Links in a few lines of code.", + "type": "module", + "main": "./dist/index.cjs", + "module": "./dist/index.js", + "types": "./dist/index.d.ts", + "exports": { + ".": { + "types": "./dist/index.d.ts", + "import": "./dist/index.js", + "require": "./dist/index.cjs" + } + }, + "files": ["dist", "README.md"], + "scripts": { + "build": "tsup src/index.ts --format esm,cjs --dts --clean --minify" + }, + "keywords": [ + "albatross", + "solana", + "privacy", + "bridge", + "sdk", + "crypto", + "web3" + ], + "author": "Albatross", + "license": "MIT", + "homepage": "https://albatrossprotocol.com", + "repository": { + "type": "git", + "url": "https://github.com/usealbatross/sdk" + }, + "publishConfig": { + "access": "public" + }, + "devDependencies": { + "tsup": "^8.3.0", + "typescript": "^5.6.0" + } +} diff --git a/src/index.ts b/src/index.ts new file mode 100644 index 0000000..490cbd8 --- /dev/null +++ b/src/index.ts @@ -0,0 +1,399 @@ +/** + * @usealbatross/sdk + * Official SDK for Albatross — the privacy protocol on Solana. + * + * Move SOL privately with the bridge, or send SOL to anyone with a single + * unlinkable Ghost Link. No wallet connection, noncustodial. + */ + +export const DEFAULT_BASE_URL = 'https://backend.albatrossprotocol.com/api'; +export const DEFAULT_APP_URL = 'https://albatrossprotocol.com'; + +export type BridgeStatus = + | 'awaiting_deposit' + | 'deposit_detected' + | 'paying_out' + | 'completed' + | 'refunding' + | 'refunded' + | 'failed' + | 'expired'; + +/** Terminal states: the bridge will not change after reaching one of these. */ +export const TERMINAL_STATUSES: BridgeStatus[] = ['completed', 'refunded', 'failed', 'expired']; + +export interface AlbatrossOptions { + /** API base URL. Defaults to the public Albatross API. */ + baseUrl?: string; + /** Web app URL used to build shareable Ghost Link URLs. Defaults to albatrossprotocol.com. */ + appUrl?: string; + /** Custom fetch implementation (for environments without global fetch). */ + fetch?: typeof fetch; +} + +export interface Amounts { + /** Selectable bridge amounts, in SOL. */ + amounts: number[]; + /** Bridge fee in basis points (50 = 0.5%). */ + feeBps: number; +} + +export interface Stats { + bridges: number; + volumeSol: number; + fundingWallets: number; + feeBps: number; +} + +export interface CreateBridgeParams { + /** Amount to bridge (what the recipient receives). Must be one of the allowed amounts. */ + amount: number; + /** Destination Solana address that receives the clean payout. */ + destination: string; +} + +export interface Bridge { + id: string; + /** Amount the recipient receives, in SOL. */ + amountSol: number; + /** Amount the user must send (amount + fee), in SOL. */ + depositSol: number; + /** Bridge fee, in SOL. */ + feeSol: number; + /** Freshly generated address to send the deposit to. */ + depositAddress: string; + destinationAddress: string; + status: BridgeStatus; + expiresAt: string; +} + +export interface BridgeState extends Bridge { + depositedSol: number; + /** Payout transaction signature, once completed. */ + payoutSignature: string | null; + /** Refund transaction signature, if refunded. */ + refundSignature: string | null; + senderAddress: string | null; + error: string | null; + createdAt: string; +} + +export interface WaitOptions { + /** Poll interval in ms. Default 5000. */ + intervalMs?: number; + /** Give up after this many ms. Default 3600000 (1 hour). */ + timeoutMs?: number; + /** Called on every poll with the latest state. */ + onUpdate?: (state: BridgeState) => void; + /** AbortSignal to cancel waiting. */ + signal?: AbortSignal; +} + +// ===================== Ghost Links ===================== + +export type GhostStatus = + | 'awaiting_deposit' + | 'funded' + | 'claiming' + | 'claimed' + | 'refunding' + | 'refunded' + | 'failed' + | 'expired'; + +/** Terminal states: a Ghost Link will not change after reaching one of these. */ +export const GHOST_TERMINAL_STATUSES: GhostStatus[] = ['claimed', 'refunded', 'failed', 'expired']; + +export interface GhostAmounts { + /** Selectable Ghost Link amounts, in SOL. */ + amounts: number[]; + /** Fee in basis points (50 = 0.5%). */ + feeBps: number; + /** Days a funded link stays claimable before auto refund. */ + claimExpiryDays: number; +} + +export interface CreateGhostLinkParams { + /** Amount the receiver claims. Must be one of the allowed amounts. */ + amount: number; + /** Address the funds return to if the link is never claimed. */ + refundAddress: string; + /** Optional note shown to the receiver (max 140 chars). */ + note?: string; +} + +export interface GhostLink { + id: string; + /** Amount the receiver claims, in SOL. */ + amountSol: number; + /** Amount the sender must deposit (amount + fee), in SOL. */ + depositSol: number; + feeSol: number; + /** Freshly generated address to fund the link. */ + depositAddress: string; + note: string; + status: GhostStatus; + claimable: boolean; + expiresAt: string; + claimExpiresAt: string | null; +} + +export interface GhostLinkState extends GhostLink { + depositedSol: number; + claimAddress: string | null; + payoutSignature: string | null; + refundSignature: string | null; + error: string | null; + createdAt: string; +} + +/** Result of creating a Ghost Link. Keep `secret`/`claimUrl` safe — they are never recoverable. */ +export interface CreatedGhostLink { + link: GhostLink; + /** The claim secret. Lives only here and in the claim URL — never sent to or stored by the server. */ + secret: string; + /** The full shareable URL, including the secret in the fragment. */ + claimUrl: string; +} + +export interface GhostWaitOptions { + intervalMs?: number; + timeoutMs?: number; + onUpdate?: (state: GhostLinkState) => void; + signal?: AbortSignal; +} + +const toHex = (bytes: Uint8Array) => + Array.from(bytes, (b) => b.toString(16).padStart(2, '0')).join(''); + +/** + * Generate a random claim secret and its SHA-256 hash. Only the hash is sent to + * the server; the secret stays client side and belongs in the URL fragment. + * Uses the Web Crypto API (available in browsers and Node 20+). + */ +export async function generateClaimSecret(): Promise<{ secret: string; secretHash: string }> { + const c = globalThis.crypto; + if (!c?.subtle) { + throw new AlbatrossError('Web Crypto API not available (needs a browser or Node 20+)'); + } + const bytes = new Uint8Array(32); + c.getRandomValues(bytes); + const secret = toHex(bytes); + const digest = await c.subtle.digest('SHA-256', new TextEncoder().encode(secret)); + return { secret, secretHash: toHex(new Uint8Array(digest)) }; +} + +export class AlbatrossError extends Error { + status?: number; + constructor(message: string, status?: number) { + super(message); + this.name = 'AlbatrossError'; + this.status = status; + } +} + +const sleep = (ms: number, signal?: AbortSignal) => + new Promise((resolve, reject) => { + const t = setTimeout(resolve, ms); + signal?.addEventListener('abort', () => { + clearTimeout(t); + reject(new AlbatrossError('Aborted')); + }, { once: true }); + }); + +/** + * Albatross API client. + * + * @example + * ```ts + * import { Albatross } from '@usealbatross/sdk' + * + * const albatross = new Albatross() + * + * const bridge = await albatross.createBridge({ amount: 1, destination: 'YourWallet…' }) + * console.log('Send', bridge.depositSol, 'SOL to', bridge.depositAddress) + * + * const result = await albatross.waitForBridge(bridge.id, { + * onUpdate: (s) => console.log(s.status), + * }) + * console.log('Done:', result.payoutSignature) + * ``` + */ +export class Albatross { + private baseUrl: string; + private appUrl: string; + private _fetch: typeof fetch; + + constructor(options: AlbatrossOptions = {}) { + this.baseUrl = (options.baseUrl ?? DEFAULT_BASE_URL).replace(/\/$/, ''); + this.appUrl = (options.appUrl ?? DEFAULT_APP_URL).replace(/\/$/, ''); + const f = options.fetch ?? globalThis.fetch; + if (!f) { + throw new AlbatrossError( + 'No fetch implementation found. Pass one via options.fetch (Node < 18).' + ); + } + this._fetch = f.bind(globalThis); + } + + private async req(path: string, init?: RequestInit): Promise { + const res = await this._fetch(this.baseUrl + path, { + ...init, + headers: { 'Content-Type': 'application/json', ...(init?.headers ?? {}) }, + }); + let data: any = null; + try { + data = await res.json(); + } catch { + /* ignore */ + } + if (!res.ok) { + throw new AlbatrossError(data?.error ?? `Request failed (${res.status})`, res.status); + } + return data as T; + } + + /** Public network statistics. */ + getStats(): Promise { + return this.req('/stats'); + } + + /** The selectable bridge amounts and current fee. */ + getAmounts(): Promise { + return this.req('/bridge/amounts'); + } + + /** Create a new private bridge and get a fresh deposit address. */ + createBridge(params: CreateBridgeParams): Promise { + if (!params?.amount) throw new AlbatrossError('amount is required'); + if (!params?.destination) throw new AlbatrossError('destination is required'); + return this.req('/bridge', { + method: 'POST', + body: JSON.stringify({ + amountSol: params.amount, + destinationAddress: params.destination, + }), + }); + } + + /** Fetch the current state of a bridge. */ + getBridge(id: string): Promise { + if (!id) throw new AlbatrossError('id is required'); + return this.req(`/bridge/${id}`); + } + + /** + * Poll a bridge until it reaches a terminal state (completed, refunded, + * failed or expired), then resolve with the final state. + */ + async waitForBridge(id: string, opts: WaitOptions = {}): Promise { + const interval = opts.intervalMs ?? 5000; + const timeout = opts.timeoutMs ?? 3_600_000; + const start = Date.now(); + // Date.now is fine at runtime for a client SDK. + for (;;) { + const state = await this.getBridge(id); + opts.onUpdate?.(state); + if (TERMINAL_STATUSES.includes(state.status)) return state; + if (Date.now() - start > timeout) { + throw new AlbatrossError('Timed out waiting for bridge to complete'); + } + await sleep(interval, opts.signal); + } + } + + /** + * One shot helper: create a bridge and return it with a `wait()` function. + * @example + * const { bridge, wait } = await albatross.bridge({ amount: 1, destination }) + * console.log('send', bridge.depositSol, 'to', bridge.depositAddress) + * const done = await wait() + */ + async bridge(params: CreateBridgeParams): Promise<{ bridge: Bridge; wait: (o?: WaitOptions) => Promise }> { + const bridge = await this.createBridge(params); + return { bridge, wait: (o?: WaitOptions) => this.waitForBridge(bridge.id, o) }; + } + + // ===================== Ghost Links ===================== + + /** The selectable Ghost Link amounts, fee, and claim expiry. */ + getGhostAmounts(): Promise { + return this.req('/ghost/amounts'); + } + + /** Build the shareable claim URL for a link id and secret. */ + buildClaimUrl(id: string, secret: string): string { + return `${this.appUrl}/g/${id}#${secret}`; + } + + /** + * Create a Ghost Link. Generates a claim secret locally, sends only its hash, + * and returns the link plus the secret and the full shareable claim URL. + * + * IMPORTANT: the secret and claimUrl are never stored by the server and cannot + * be recovered. Persist or share them immediately. + */ + async createGhostLink(params: CreateGhostLinkParams): Promise { + if (!params?.amount) throw new AlbatrossError('amount is required'); + if (!params?.refundAddress) throw new AlbatrossError('refundAddress is required'); + const { secret, secretHash } = await generateClaimSecret(); + const link = await this.req('/ghost', { + method: 'POST', + body: JSON.stringify({ + amountSol: params.amount, + refundAddress: params.refundAddress, + secretHash, + note: params.note, + }), + }); + return { link, secret, claimUrl: this.buildClaimUrl(link.id, secret) }; + } + + /** Fetch the current state of a Ghost Link. */ + getGhostLink(id: string): Promise { + if (!id) throw new AlbatrossError('id is required'); + return this.req(`/ghost/${id}`); + } + + /** + * Claim a Ghost Link to any wallet. The secret comes from the claim URL's + * fragment. The payout is sent from an unrelated wallet by the protocol. + */ + claimGhostLink(params: { id: string; secret: string; destination: string }): Promise<{ ok: boolean; status: GhostStatus; id: string }> { + if (!params?.id) throw new AlbatrossError('id is required'); + if (!params?.secret) throw new AlbatrossError('secret is required'); + if (!params?.destination) throw new AlbatrossError('destination is required'); + return this.req(`/ghost/${params.id}/claim`, { + method: 'POST', + body: JSON.stringify({ secret: params.secret, destinationAddress: params.destination }), + }); + } + + /** Poll a Ghost Link until it reaches a terminal state, then resolve. */ + async waitForGhostLink(id: string, opts: GhostWaitOptions = {}): Promise { + const interval = opts.intervalMs ?? 5000; + const timeout = opts.timeoutMs ?? 3_600_000; + const start = Date.now(); + for (;;) { + const state = await this.getGhostLink(id); + opts.onUpdate?.(state); + if (GHOST_TERMINAL_STATUSES.includes(state.status)) return state; + if (Date.now() - start > timeout) { + throw new AlbatrossError('Timed out waiting for Ghost Link'); + } + await sleep(interval, opts.signal); + } + } + + /** + * One shot helper: parse a claim URL and claim it to a destination wallet. + * Accepts a full URL (…/g/#) and extracts id + secret. + */ + async claimFromUrl(claimUrl: string, destination: string): Promise<{ ok: boolean; status: GhostStatus; id: string }> { + const m = claimUrl.match(/\/g\/([^/#?]+)#(.+)$/); + if (!m) throw new AlbatrossError('Invalid Ghost Link URL'); + return this.claimGhostLink({ id: m[1], secret: m[2], destination }); + } +} + +export default Albatross; diff --git a/tsconfig.json b/tsconfig.json new file mode 100644 index 0000000..ad15890 --- /dev/null +++ b/tsconfig.json @@ -0,0 +1,14 @@ +{ + "compilerOptions": { + "target": "ES2020", + "module": "ESNext", + "moduleResolution": "Bundler", + "lib": ["ES2020", "DOM"], + "declaration": true, + "strict": true, + "esModuleInterop": true, + "skipLibCheck": true, + "outDir": "dist" + }, + "include": ["src"] +}