feat(cloudflare): Add framework specific guides (#11396)

docs/platforms/javascript/guides/cloudflare/frameworks/astro.mdx

@@ -0,0 +1,36 @@
+---
+title: Cloudflare Astro Framework Guide
+description: "Learn how to add Cloudflare instrumentation to your Astro app."
+---
+
+If you're running your Astro app on Cloudflare Pages, you can use the Sentry Astro SDK in combination with the Sentry Cloudflare SDK to add Sentry instrumentation.
+
+First, install the Sentry Astro SDK in your application. We recommend [setting up the Astro SDK manually](/platforms/javascript/guides/astro/manual-setup/) and manually initializing the SDK. Make sure you have a `sentry.client.config.js` file created, but do not add a `sentry.server.config.js` file.
+
+After installing the Sentry Astro SDK, you can now install the Sentry Cloudflare SDK. First, install the SDK with your package manager:
+
+<PlatformContent includePath="getting-started-install" />
+
+To use the SDK, you'll need to set either the `nodejs_compat` or `nodejs_als` compatibility flags in your `wrangler.toml`. This is because the SDK
+needs access to the `AsyncLocalStorage` API to work correctly.
+
+```toml {filename:wrangler.toml}
+compatibility_flags = ["nodejs_compat"]
+# compatibility_flags = ["nodejs_als"]
+```
+
+Then create a `functions` directory and add a `_middleware.js` file to it with the following code:
+
+```javascript {filename:functions/_middleware.js}
+import * as Sentry from "@sentry/cloudflare";
+
+export const onRequest = [
+  // Make sure Sentry is the first middleware
+  Sentry.sentryPagesPlugin((context) => ({
+    dsn: "___PUBLIC_DSN___",
+    // Set tracesSampleRate to 1.0 to capture 100% of spans for tracing.
+    tracesSampleRate: 1.0,
+  })),
+  // Add more middlewares here
+];
+```

docs/platforms/javascript/guides/cloudflare/frameworks/index.mdx

@@ -0,0 +1,8 @@
+---
+title: Cloudflare SDK Framework Guide
+description: "Learn how to set up the Cloudflare SDK with popular Frameworks like SvelteKit or Remix."
+---
+
+You can use the Sentry Cloudlare SDK in combination with Sentry meta-framework SDKs like SvelteKit or Remix to instrument your Cloudflare Pages applications that use these frameworks.
+
+<PageGrid />

docs/platforms/javascript/guides/cloudflare/frameworks/remix.mdx

@@ -0,0 +1,44 @@
+---
+title: Cloudflare Remix Framework Guide
+description: "Learn how to add Cloudflare instrumentation to your Remix app."
+---
+
+If you're running your Remix app on Cloudflare Pages, you can use the Sentry Remix SDK in combination with the Sentry Cloudflare SDK to add Sentry instrumentation.
+
+First, install the Sentry Remix SDK in your application. We recommend using the Sentry wizard to automatically install the SDK:
+
+```bash
+npx @sentry/wizard@latest -i remix
+```
+
+If the setup through the wizard doesn't work for you, you can also [set up the Remix SDK manually](/platforms/javascript/guides/remix/manual-setup/).
+
+After installing the Sentry Remix SDK, delete the newly generated `instrumentation.server.mjs` file. This instrumentation is not needed when using the Cloudflare SDK.
+
+Now you can install the Sentry Cloudflare SDK. First, install the SDK with your package manager:
+
+<PlatformContent includePath="getting-started-install" />
+
+To use the SDK, you'll need to set either the `nodejs_compat` or `nodejs_als` compatibility flags in your `wrangler.toml`. This is because the SDK
+needs access to the `AsyncLocalStorage` API to work correctly.
+
+```toml {filename:wrangler.toml}
+compatibility_flags = ["nodejs_compat"]
+# compatibility_flags = ["nodejs_als"]
+```
+
+Then create a `_middleware.js` file in your `functions` directory and add the following code:
+
+```javascript {filename:functions/_middleware.js}
+import * as Sentry from "@sentry/cloudflare";
+
+export const onRequest = [
+  // Make sure Sentry is the first middleware
+  Sentry.sentryPagesPlugin((context) => ({
+    dsn: "___PUBLIC_DSN___",
+    // Set tracesSampleRate to 1.0 to capture 100% of spans for tracing.
+    tracesSampleRate: 1.0,
+  })),
+  // Add more middlewares here
+];
+```

docs/platforms/javascript/guides/cloudflare/frameworks/sveltekit.mdx

@@ -0,0 +1,64 @@
+---
+title: Cloudflare Sveltekit Framework Guide
+description: "Learn how to add Cloudflare instrumentation to your SvelteKit app."
+---
+
+If you're running your SvelteKit app on Cloudflare Pages, you can use the Sentry SvelteKit SDK in combination with the Sentry Cloudflare SDK to add Sentry instrumentation.
+
+First, install the Sentry SvelteKit SDK in your application. We recommend using the Sentry wizard to automatically install the SDK:
+
+```bash
+npx @sentry/wizard@latest -i sveltekit
+```
+
+If the setup through the wizard doesn't work for you, you can also [set up the SvelteKit SDK manually](/platforms/javascript/guides/sveltekit/manual-setup/).
+
+After installing the Sentry SvelteKit SDK, you can move on to setting up the Cloudflare SDK. First, install the SDK with your package manager:
+
+<PlatformContent includePath="getting-started-install" />
+
+To use the SDK, you'll need to set either the `nodejs_compat` or `nodejs_als` compatibility flags in your `wrangler.toml`. This is because the SDK
+needs access to the `AsyncLocalStorage` API to work correctly.
+
+```toml {filename:wrangler.toml}
+compatibility_flags = ["nodejs_compat"]
+# compatibility_flags = ["nodejs_als"]
+```
+
+To use this SDK, update your `src/hooks.server.ts` file to use the `Sentry.wrapRequestHandler` method from the Sentry Cloudflare SDK and remove the `Sentry.init` call from `@sentry/sveltekit`.
+
+```diff
+ import { sequence } from "@sveltejs/kit/hooks";
+ import { handleErrorWithSentry, sentryHandle } from "@sentry/sveltekit";
+-import * as Sentry from '@sentry/sveltekit';
++import * as Sentry from "@sentry/cloudflare";
+
+-Sentry.init({
+-  dsn: '___PUBLIC_DSN___',
+-  tracesSampleRate: 1.0,
+-
+-  // uncomment the line below to enable Spotlight (https://spotlightjs.com)
+-  // spotlight: import.meta.env.DEV,
+-});
+-
++const handleInitSentry = ({ event, resolve }) => {
++  return event.platform
++    ? Sentry.wrapRequestHandler(
++        {
++          options: {
++            dsn: '___PUBLIC_DSN___',
++            tracesSampleRate: 1.0,
++          },
++          request: event.request,
++          context: event.platform.ctx,
++        },
++        () => resolve(event)
++      )
++    : resolve(event);
++};
+-// If you have custom handlers, make sure to place them after `sentryHandle()` in the `sequence` function.
+-export const handle = sequence(sentryHandle());
++export const handle = sequence(handleInitSentry, sentryHandle());
+```
+
+If you need to use environmental variables, you can access them using `event.platform.env`.