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Add localhost API bypass #951

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Add localhost API bypass #951

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f33dcf1
Add localhost API bypass
johanbissemattsson Jan 26, 2024
3ce6133
Merge branch 'develop' into feature/add-localhost-api-support
johanbissemattsson Jan 26, 2024
2d478bb
Remove duplicate env imports
johanbissemattsson Jan 26, 2024
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3 changes: 3 additions & 0 deletions lxl-web/.env.example
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Original file line number Diff line number Diff line change
Expand Up @@ -2,3 +2,6 @@ SVELTE_INSPECTOR_TOGGLE=shift-alt
API_URL=
ID_URL=
USE_LOCAL_DISPLAY_JSONLD=false
USE_LOCALHOST_API=false
LOCALHOST_API_PORT=
LOCALHOST_ID_PORT=
24 changes: 23 additions & 1 deletion lxl-web/src/hooks.server.ts
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Original file line number Diff line number Diff line change
@@ -1,3 +1,4 @@
import type { Handle, HandleFetch } from '@sveltejs/kit';
import { defaultLocale, Locales } from '$lib/i18n/locales';
import { USE_LOCAL_DISPLAY_JSONLD } from '$env/static/private';
import { env } from '$env/dynamic/private';
Expand All @@ -6,7 +7,7 @@ import fs from 'fs';

let utilCache;

export const handle = async ({ event, resolve }) => {
export const handle: Handle = async ({ event, resolve }) => {
const [vocabUtil, displayUtil] = await loadUtilCached();
event.locals.vocab = vocabUtil;
event.locals.display = displayUtil;
Expand All @@ -27,6 +28,27 @@ export const handle = async ({ event, resolve }) => {
});
};

export const handleFetch: HandleFetch = async ({ request, fetch }) => {
if (env.USE_LOCALHOST_API === 'true') {
// Hit API directly bypassing whatever proxies and load balancers sit between it and the public internet).
// clone the original request, but change the URL
if (request.url.startsWith(env.API_URL)) {
request = new Request(
request.url.replace(env.API_URL, `http://localhost:${env.LOCALHOST_API_PORT}/`),
request
);
}
if (request.url.startsWith(env.ID_URL)) {
request = new Request(
request.url.replace(env.ID_URL, `http://localhost:${env.LOCALHOST_ID_PORT}/`),
request
);
}
}

return fetch(request);
};

async function loadUtilCached() {
if (!utilCache) {
utilCache = loadUtil();
Expand Down