vikingowl
104aeff216
The SvelteKit hooks proxy was only forwarding pathname without the query string (event.url.search), causing filters and pagination to be silently dropped in production builds.
86 lines
2.5 KiB
TypeScript
86 lines
2.5 KiB
TypeScript
/**
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* SvelteKit server hooks for API proxying
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* In production, proxies /api/* requests to Ollama and backend services
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*/
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import type { Handle } from '@sveltejs/kit';
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// Get service URLs from environment (set in docker-compose)
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const OLLAMA_URL = process.env.OLLAMA_API_URL || 'http://localhost:11434';
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const BACKEND_URL = process.env.BACKEND_URL || 'http://localhost:9090';
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/**
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* Proxy a request to a target URL
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*/
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async function proxyRequest(request: Request, targetBase: string, path: string): Promise<Response> {
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const targetUrl = `${targetBase}${path}`;
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const headers = new Headers(request.headers);
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// Remove host header to avoid issues
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headers.delete('host');
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try {
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const response = await fetch(targetUrl, {
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method: request.method,
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headers,
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body: request.method !== 'GET' && request.method !== 'HEAD'
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? await request.arrayBuffer()
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: undefined,
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// @ts-expect-error - duplex is needed for streaming but not in types
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duplex: 'half'
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});
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// Create new response with CORS headers
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const responseHeaders = new Headers(response.headers);
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responseHeaders.set('Access-Control-Allow-Origin', '*');
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return new Response(response.body, {
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status: response.status,
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statusText: response.statusText,
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headers: responseHeaders
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});
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} catch (error) {
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console.error(`[Proxy] Error proxying to ${targetUrl}:`, error);
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return new Response(JSON.stringify({ error: `Failed to reach ${targetBase}` }), {
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status: 502,
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headers: { 'Content-Type': 'application/json' }
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});
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}
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}
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export const handle: Handle = async ({ event, resolve }) => {
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const { pathname } = event.url;
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// Handle CORS preflight
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if (event.request.method === 'OPTIONS') {
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return new Response(null, {
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headers: {
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'Access-Control-Allow-Origin': '*',
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'Access-Control-Allow-Methods': 'GET, POST, PUT, DELETE, OPTIONS',
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'Access-Control-Allow-Headers': 'Content-Type, Authorization'
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}
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});
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}
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// Proxy /health to backend
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if (pathname === '/health') {
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return proxyRequest(event.request, BACKEND_URL, '/health');
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}
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// Include query string for all API proxying
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const fullPath = pathname + event.url.search;
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// Proxy /api/v1/* to backend (must come before /api/* check)
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if (pathname.startsWith('/api/v1/')) {
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return proxyRequest(event.request, BACKEND_URL, fullPath);
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}
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// Proxy /api/* to Ollama
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if (pathname.startsWith('/api/')) {
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return proxyRequest(event.request, OLLAMA_URL, fullPath);
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}
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// All other requests go to SvelteKit
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return resolve(event);
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};
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