85 lines
2.9 KiB
TypeScript
85 lines
2.9 KiB
TypeScript
import { getOrCreateSessionId } from "@/lib/sessionId";
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// При basePath=/trade-in (production behind gendsgn.ru/trade-in/*) API calls
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// должны идти на `/trade-in/api/...`, чтобы Caddy `handle_path /trade-in/api/*`
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// проксировал на tradein-backend — а не в main `handle /api/*` (gendesign).
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// В dev (без basePath) — empty prefix, Next.js rewrites относительный путь.
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const BASE_PATH = process.env.NEXT_PUBLIC_BASE_PATH ?? "";
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export const API_BASE_URL = process.env.NEXT_PUBLIC_API_BASE_URL ?? BASE_PATH;
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/**
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* Merges a global X-Session-Id header into the request init.
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* Only runs in browser (SSR guard). User-supplied headers win over the
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* auto-injected value so explicit overrides remain backward-compatible.
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*/
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function withSessionHeader(init?: RequestInit): RequestInit {
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const base: RequestInit = init ?? {};
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if (typeof window === "undefined") return base;
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const sessionId = getOrCreateSessionId();
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if (!sessionId) return base;
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return {
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...base,
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headers: {
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"X-Session-Id": sessionId,
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...(base.headers ?? {}),
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},
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};
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}
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/**
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* Status-aware variant of apiFetch — возвращает status + body для случаев
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* когда логика зависит от HTTP кода (например 202 Accepted для async jobs).
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*
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* Throws на 4xx/5xx (используя HTTPError ниже); 2xx коды все ОК.
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*/
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export class HTTPError extends Error {
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status: number;
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body: unknown;
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constructor(status: number, body: unknown, msg?: string) {
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super(msg ?? `API error ${status}`);
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this.status = status;
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this.body = body;
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}
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}
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export async function apiFetchWithStatus<T>(
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path: string,
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init?: RequestInit,
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): Promise<{ status: number; body: T }> {
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const merged = withSessionHeader(init);
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const response = await fetch(`${API_BASE_URL}${path}`, {
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...merged,
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headers: {
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"Content-Type": "application/json",
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...(merged.headers ?? {}),
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},
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});
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let body: unknown = null;
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// 204 No Content имеет пустое тело; для всех остальных читаем как text один раз
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// (fetch body stream consumable только один раз — нельзя сначала .json() потом .text()).
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if (response.status !== 204) {
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const rawText = await response.text();
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if (rawText) {
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try {
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body = JSON.parse(rawText);
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} catch {
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// Не JSON (HTML error page от Caddy / 502 / etc) — оборачиваем в detail
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body = { detail: rawText };
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}
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}
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}
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if (!response.ok) {
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const detail =
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(body as { detail?: string })?.detail ?? `API error ${response.status}`;
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throw new HTTPError(response.status, body, detail);
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}
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return { status: response.status, body: body as T };
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}
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export async function apiFetch<T>(
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path: string,
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init?: RequestInit,
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): Promise<T> {
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const { body } = await apiFetchWithStatus<T>(path, init);
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return body;
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}
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