`app/lib/context.ts`

38 lines and 3 functions in DrDustinEdwards/dustinedwards-info, at commit 1590ba4 on 2026-10-24. This file on GitHub.

Functions

The functions of context.ts
Function	Lines	Complexity	Covered	CRAP	Mutation
getEnv	10 to 12	1	No data: no coverage report in this map	No data: no coverage report in this map	No data: no mutants in this code
getNonce	19 to 21	1	No data: no coverage report in this map	No data: no coverage report in this map	No data: no mutants in this code
getExecutionContext	42 to 46	1	No data: no coverage report in this map	No data: no coverage report in this map	No data: no mutants in this code

Imports

Source

1import { createContext, type RouterContextProvider } from "react-router";
2
3import type { previewBlogPost } from "~/db/posts";
4
5export const cloudflareContext = createContext<{
6  env: Env;
7  ctx: ExecutionContext;
8}>();
9
10export function getEnv(context: Readonly<RouterContextProvider>): Env {
11  return context.get(cloudflareContext).env;
12}
13
14// Admin only. Unlike the other response headers, the nonce must exist before the render: the same
15// value goes in the CSP header and on every `<script>` in the body. Public pages are edge-cached and
16// carry none, so it is undefined there (workers/csp.mjs).
17export const nonceContext = createContext<string | undefined>(undefined);
18
19export function getNonce(context: Readonly<RouterContextProvider>): string | undefined {
20  return context.get(nonceContext);
21}
22
23/**
24 * The Renderer's own document handler, so the Carrel preview renders a page in-process through the
25 * site's routes and root layout. In-process, not a fetch to the Renderer: that entrypoint's response
26 * is the one the edge stores, and a preview must never be stored.
27 */
28// A null default, not undefined: React Router treats an undefined default as none, and a get of an
29// unset context then throws, which would fail every request that never sets it.
30export const documentHandlerContext = createContext<
31  ((request: Request, context: RouterContextProvider) => Promise<Response>) | null
32>(null);
33
34/**
35 * Set only for a Carrel preview render: the post row built from submitted source, which the blog
36 * route renders in place of the stored row for that slug. Never set on a request from outside.
37 */
38export const postPreviewContext = createContext<
39  Awaited<ReturnType<typeof previewBlogPost>> | null
40>(null);
41
42export function getExecutionContext(
43  context: Readonly<RouterContextProvider>,
44): ExecutionContext {
45  return context.get(cloudflareContext).ctx;
46}