Initial commit: Lightning Lottery - Bitcoin Lightning Network powered lottery
Features: - Lightning Network payments via LNbits integration - Provably fair draws using CSPRNG - Random ticket number generation - Automatic payouts with retry/redraw logic - Nostr authentication (NIP-07) - Multiple draw cycles (hourly, daily, weekly, monthly) - PostgreSQL and SQLite database support - Real-time countdown and payment animations - Swagger API documentation - Docker support Stack: - Backend: Node.js, TypeScript, Express - Frontend: Next.js, React, TailwindCSS, Redux - Payments: LNbits
This commit is contained in:
Michilis
224
front_end/src/lib/api.ts
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224
front_end/src/lib/api.ts
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import config from '@/config';
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const LOOPBACK_HOSTS = new Set(['localhost', '127.0.0.1', '0.0.0.0', '[::1]']);
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const EXPLICIT_BACKEND_PORT = process.env.NEXT_PUBLIC_BACKEND_PORT;
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const buildBaseUrl = (protocol: string, hostname: string, port?: string) => {
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if (port && port.length > 0) {
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return `${protocol}//${hostname}:${port}`;
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}
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return `${protocol}//${hostname}`;
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};
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const inferPort = (configuredPort?: string, runtimePort?: string, runtimeProtocol?: string): string | undefined => {
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if (EXPLICIT_BACKEND_PORT && EXPLICIT_BACKEND_PORT.length > 0) {
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return EXPLICIT_BACKEND_PORT;
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}
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if (configuredPort && configuredPort.length > 0) {
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return configuredPort;
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}
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if (runtimePort && runtimePort.length > 0) {
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return runtimePort === '3001' ? '3000' : runtimePort;
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}
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if (runtimeProtocol === 'https:') {
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return undefined;
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}
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return undefined;
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};
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const resolveBrowserBaseUrl = (staticBaseUrl: string) => {
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if (typeof window === 'undefined') {
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return staticBaseUrl;
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}
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const { protocol, hostname, port } = window.location;
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if (!staticBaseUrl || staticBaseUrl.length === 0) {
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const inferredPort = inferPort(undefined, port, protocol);
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return buildBaseUrl(protocol, hostname, inferredPort);
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}
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try {
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const parsed = new URL(staticBaseUrl);
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const shouldSwapHost = LOOPBACK_HOSTS.has(parsed.hostname) && !LOOPBACK_HOSTS.has(hostname);
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if (shouldSwapHost) {
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const inferredPort = inferPort(parsed.port, port, parsed.protocol);
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return buildBaseUrl(parsed.protocol, hostname, inferredPort);
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}
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return staticBaseUrl;
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} catch {
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return staticBaseUrl;
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}
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};
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interface ApiOptions {
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method?: 'GET' | 'POST' | 'PATCH' | 'DELETE';
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headers?: Record<string, string>;
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body?: any;
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auth?: boolean;
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}
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class ApiClient {
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private baseUrl: string;
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private cachedBrowserBaseUrl: string | null = null;
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constructor(baseUrl: string) {
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this.baseUrl = baseUrl;
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}
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private getBaseUrl(): string {
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if (typeof window === 'undefined') {
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return this.baseUrl || 'http://localhost:3000';
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}
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if (this.cachedBrowserBaseUrl) {
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return this.cachedBrowserBaseUrl;
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}
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const resolved = resolveBrowserBaseUrl(this.baseUrl || 'http://localhost:3000');
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this.cachedBrowserBaseUrl = resolved;
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return resolved;
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}
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private getAuthToken(): string | null {
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if (typeof window === 'undefined') return null;
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return localStorage.getItem('auth_token');
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}
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async request<T = any>(path: string, options: ApiOptions = {}): Promise<T> {
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const { method = 'GET', headers = {}, body, auth = false } = options;
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const url = `${this.getBaseUrl()}${path}`;
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const requestHeaders: Record<string, string> = {
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'Content-Type': 'application/json',
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...headers,
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};
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if (auth) {
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const token = this.getAuthToken();
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if (token) {
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requestHeaders['Authorization'] = `Bearer ${token}`;
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}
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}
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const requestOptions: RequestInit = {
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method,
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headers: requestHeaders,
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};
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if (body && method !== 'GET') {
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requestOptions.body = JSON.stringify(body);
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}
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try {
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const response = await fetch(url, requestOptions);
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const data = await response.json();
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if (!response.ok) {
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throw new Error(data.message || 'API request failed');
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}
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return data;
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} catch (error: any) {
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console.error('API request error:', error);
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throw error;
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}
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}
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// Public endpoints
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async getNextJackpot() {
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return this.request('/jackpot/next');
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}
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async buyTickets(lightningAddress: string, tickets: number, buyerName?: string) {
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return this.request('/jackpot/buy', {
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method: 'POST',
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body: { lightning_address: lightningAddress, tickets, name: buyerName },
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auth: true,
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});
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}
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async getTicketStatus(ticketPurchaseId: string) {
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return this.request(`/tickets/${ticketPurchaseId}`);
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}
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async getPastWins(limit = 25, offset = 0) {
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const params = new URLSearchParams({
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limit: String(limit),
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offset: String(offset),
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});
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return this.request(`/jackpot/past-wins?${params.toString()}`);
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}
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// Auth endpoints
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async nostrAuth(nostrPubkey: string, signedMessage: string, nonce: string) {
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return this.request('/auth/nostr', {
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method: 'POST',
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body: { nostr_pubkey: nostrPubkey, signed_message: signedMessage, nonce },
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});
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}
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// User endpoints
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async getProfile() {
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return this.request('/me', { auth: true });
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}
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async updateLightningAddress(lightningAddress: string) {
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return this.request('/me/lightning-address', {
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method: 'PATCH',
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body: { lightning_address: lightningAddress },
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auth: true,
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});
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}
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async getUserTickets(limit = 50, offset = 0) {
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return this.request(`/me/tickets?limit=${limit}&offset=${offset}`, { auth: true });
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}
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async getUserWins() {
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return this.request('/me/wins', { auth: true });
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}
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// Admin endpoints
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async listCycles(status?: string, cycleType?: string) {
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const params = new URLSearchParams();
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if (status) params.append('status', status);
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if (cycleType) params.append('cycle_type', cycleType);
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return this.request(`/admin/cycles?${params.toString()}`, {
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headers: { 'X-Admin-Key': process.env.NEXT_PUBLIC_ADMIN_KEY || '' },
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});
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}
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async runDrawManually(cycleId: string) {
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return this.request(`/admin/cycles/${cycleId}/run-draw`, {
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method: 'POST',
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headers: { 'X-Admin-Key': process.env.NEXT_PUBLIC_ADMIN_KEY || '' },
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});
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}
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async listPayouts(status?: string) {
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const params = status ? `?status=${status}` : '';
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return this.request(`/admin/payouts${params}`, {
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headers: { 'X-Admin-Key': process.env.NEXT_PUBLIC_ADMIN_KEY || '' },
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});
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}
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async retryPayout(payoutId: string) {
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return this.request(`/admin/payouts/${payoutId}/retry`, {
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method: 'POST',
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headers: { 'X-Admin-Key': process.env.NEXT_PUBLIC_ADMIN_KEY || '' },
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});
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}
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}
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export const api = new ApiClient(config.apiBaseUrl);
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export default api;
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