46 lines
2.1 KiB
JavaScript
46 lines
2.1 KiB
JavaScript
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export const base = '/api/v1/remote';
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let csrf = '';
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export async function api(path, data, method = data === undefined ? 'GET' : 'POST') {
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const controller = new AbortController();
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const timeout = setTimeout(() => controller.abort(), 15000);
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try {
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const response = await fetch(base + path, {method, credentials: 'same-origin', cache: 'no-store', signal: controller.signal,
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headers: data === undefined ? {} : {'Content-Type': 'application/json', 'X-Remote-CSRF': csrf},
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body: data === undefined ? undefined : JSON.stringify(data)});
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if (response.redirected || (response.ok && !response.headers.get('Content-Type')?.includes('application/json'))) {
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throw new Error('Hub sendte ikke det forventede svar. Prøver igen…');
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}
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const result = await response.json();
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if (!response.ok) {
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const error = new Error(typeof result.detail === 'string' ? result.detail : 'Kontrollér oplysningerne og prøv igen');
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error.status = response.status;
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error.retry = Number(response.headers.get('Retry-After') || 0);
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throw error;
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}
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return result;
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} catch (error) {
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if (error.status || error.message?.includes('forventede svar')) throw error;
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throw new Error('Forbindelsen til Hub er afbrudt. Prøver igen…');
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} finally { clearTimeout(timeout); }
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}
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export async function bootstrap() {
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const result = await api('/bootstrap');
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csrf = result.csrf;
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return result;
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}
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export function element(tag, text, className) {
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const node = document.createElement(tag);
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node.textContent = text;
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if (className) node.className = className;
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return node;
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}
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// getRandomValues also works on HTTP local-network origins.
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export function requestId() {
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const bytes = crypto.getRandomValues(new Uint8Array(16));
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bytes[6] = (bytes[6] & 0x0f) | 0x40;
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bytes[8] = (bytes[8] & 0x3f) | 0x80;
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const hex = Array.from(bytes, b => b.toString(16).padStart(2, '0')).join('');
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return `${hex.slice(0,8)}-${hex.slice(8,12)}-${hex.slice(12,16)}-${hex.slice(16,20)}-${hex.slice(20)}`;
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}
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