@sls-next/core/dist/module/handle/headers.js

Handles Next.js routing independent of provider

import { matchPath } from "../match";
import { addDefaultLocaleToPath } from "../route/locale";
export const getCustomHeaders = (uri, routesManifest) => {
    const localized = addDefaultLocaleToPath(uri, routesManifest);
    const headers = {};
    for (const headerData of routesManifest.headers) {
        if (!matchPath(localized, headerData.source)) {
            continue;
        }
        for (const { key, value } of headerData.headers) {
            if (key) {
                // Header overriding behavior as per:
                // https://nextjs.org/docs/api-reference/next.config.js/headers
                headers[key.toLowerCase()] = [{ key, value }];
            }
        }
    }
    return headers;
};
export const setCustomHeaders = (event, routesManifest) => {
    var _a;
    const [uri] = ((_a = event.req.url) !== null && _a !== void 0 ? _a : "").split("?");
    const headers = getCustomHeaders(uri, routesManifest);
    for (const [{ key, value }] of Object.values(headers)) {
        if (key) {
            event.res.setHeader(key, value);
        }
    }
};
export const setHeadersFromRoute = (event, route) => {
    var _a;
    for (const [key, headers] of Object.entries(route.headers || [])) {
        const keys = headers.map(({ key }) => key);
        const values = headers.map(({ value }) => value).join(";");
        if (values) {
            event.res.setHeader((_a = keys[0]) !== null && _a !== void 0 ? _a : key, values);
        }
    }
};