Use vendored next code to prepare view path

README.md

@@ -30,7 +30,8 @@
 - [Examples folder structure](#examples-folder-structure)
   - [Basic Setup](#basic-setup)
   - [Monorepo](#monorepo)
-- [Versioning](#versioning)
+- [Known Issues](#known-issues)
+- [Contributing](#contributing)
 - [License](#license)
 
 <!-- vim-markdown-toc -->
@@ -100,7 +101,7 @@ Next 9 added [built-in zero-config typescript support](https://nextjs.org/blog/n
 
 If you are having issues with unexpected tokens, files not emitting when building for production, warnings about `allowJs` and `declaration` not being used together, and other typescript related errors; see the `tsconfig.server.json` [file in the example project](/examples/basic/tsconfig.server.json) for the full config.
 
-#### Pass-through 404s 
+#### Pass-through 404s
 
 Instead of having Nest handle the response for requests that 404, they can be forwarded to Next's request handler.
 
@@ -295,11 +296,18 @@ outside of both projects. Changes in it during "dev" runs trigger recompilation
         /IndexPage.ts
       package.json
 
-
 To run this project, the "ui" and "server" project must be built, in any order. The "dto" project will be implicitly built by the "server" project. After both of those builds, the "server" project can be started in either dev or production mode.
 
 It is important that "ui" references to "dto" refer to the TypeScript files (.ts files in the "src" folder), and NOT the declaration files (.d.ts files in the "dist" folder), due to how Next not being compiled in the same fashion as the server.
 
+### Known issues
+
+Currently Next ["catch all routes"](https://nextjs.org/docs/routing/dynamic-routes#catch-all-routes) pages do not work correctly. See issue [#101](https://github.com/kyle-mccarthy/nest-next/issues/101) for details.
+
+### Contributing
+
+To contribute make sure your changes pass the test suite. To run test suite `docker`, `docker-compose` are required. Run `npm run test` to run tests. Playwright will be installed with required packages. To run tests in Next development mode run `npm run test-dev`. You can also specify `NODE_VERSION` and major `NEXT_VERSION` variables to run tests in specific environments.
+
 ### License
 
 MIT License

lib/render.module.ts

@@ -1,9 +1,13 @@
 import { DynamicModule, Module } from '@nestjs/common';
 import { ApplicationConfig, HttpAdapterHost } from '@nestjs/core';
+
 import Server from 'next';
+import type { DynamicRoutes } from 'next/dist/server/router';
+
 import { RenderFilter } from './render.filter';
 import { RenderService } from './render.service';
-import { RendererConfig } from './types';
+
+import type { RendererConfig } from './types';
 
 @Module({
   providers: [RenderService],
@@ -30,7 +34,15 @@ export class RenderModule {
       ? nextConfig.basePath
       : nextServer.nextConfig.basePath;
 
-    const config = { basePath, ...options };
+    const dynamicRoutes = (nextServer.dynamicRoutes as DynamicRoutes).map(
+      (route) => route.page,
+    );
+
+    const config: Partial<RendererConfig> = {
+      basePath,
+      dynamicRoutes,
+      ...options,
+    };
 
     return {
       exports: [RenderService],

lib/render.service.ts

@@ -11,6 +11,10 @@ import {
   RequestHandler,
 } from './types';
 
+import { getNamedRouteRegex } from './vendor/next/route-regex';
+import { interpolateDynamicPath } from './vendor/next/interpolate-dynamic-path';
+import { isDynamicRoute } from './vendor/next/is-dynamic';
+
 export class RenderService {
   public static init(
     config: Partial<RendererConfig>,
@@ -38,6 +42,10 @@ export class RenderService {
     passthrough404: false,
     viewsDir: '/views',
   };
+  private dynamicRouteRegexes = new Map<
+    string,
+    ReturnType<typeof getNamedRouteRegex>
+  >();
 
   /**
    * Merge the default config with the config obj passed to method
@@ -56,6 +64,9 @@ export class RenderService {
     if (typeof config.basePath === 'string') {
       this.config.basePath = config.basePath;
     }
+    if (config.dynamicRoutes?.length) {
+      this.initializeDynamicRouteRegexes(config.dynamicRoutes);
+    }
   }
 
   /**
@@ -167,6 +178,14 @@ export class RenderService {
     return isInternalUrl(url);
   }
 
+  public initializeDynamicRouteRegexes(routes: string[] = []) {
+    for (const route of routes) {
+      const pathname = this.getNormalizedPath(route);
+
+      this.dynamicRouteRegexes.set(route, getNamedRouteRegex(pathname));
+    }
+  }
+
   /**
    * Check if the service has been initialized by the module
    */
@@ -198,7 +217,7 @@ export class RenderService {
         if (isFastify) {
           response.sent = true;
         }
-        return renderer(req, res, getViewPath(view), data);
+        return renderer(req, res, getViewPath(view, req.params), data);
       } else if (!renderer) {
         throw new InternalServerErrorException(
           'RenderService: renderer is not set',
@@ -228,7 +247,10 @@ export class RenderService {
     if (isFastifyAdapter) {
       server
         .getInstance()
-        .decorateReply('render', function(view: string, data?: ParsedUrlQuery) {
+        .decorateReply('render', function (
+          view: string,
+          data?: ParsedUrlQuery,
+        ) {
           const res = this.res;
           const req = this.request.raw;
 
@@ -240,7 +262,7 @@ export class RenderService {
 
           this.sent = true;
 
-          return renderer(req, res, getViewPath(view), data);
+          return renderer(req, res, getViewPath(view, req.params), data);
         } as RenderableResponse['render']);
     } else {
       server.getInstance().use((req: any, res: any, next: () => any) => {
@@ -251,21 +273,46 @@ export class RenderService {
             );
           }
 
-          return renderer(req, res, getViewPath(view), data);
+          return renderer(req, res, getViewPath(view, req.params), data);
         }) as RenderableResponse['render'];
 
         next();
       });
     }
   }
 
+  public getNormalizedPath(view: string) {
+    const basePath = this.getViewsDir() ?? '';
+    const denormalizedPath = [basePath, view].join(
+      view.startsWith('/') ? '' : '/',
+    );
+
+    const pathname = path.posix.normalize(denormalizedPath);
+
+    return pathname;
+  }
+
   /**
-   * Format the path to the view
+   * Format the path to the view including path parameters interpolation
+   * Copied Next.js code is used for interpolation
    * @param view
+   * @param params
    */
-  protected getViewPath(view: string) {
-    const baseDir = this.getViewsDir();
-    const basePath = baseDir ? baseDir : '';
-    return path.posix.normalize(`${basePath}/${view}`);
+  protected getViewPath(view: string, params: ParsedUrlQuery) {
+    const pathname = this.getNormalizedPath(view);
+
+    if (!isDynamicRoute(pathname)) {
+      return pathname;
+    }
+
+    const regex = this.dynamicRouteRegexes.get(pathname);
+
+    if (!regex) {
+      console.warn(
+        `RenderService: view ${view} is dynamic and has no route regex`,
+      );
+    }
+
+    return interpolateDynamicPath(pathname, params, regex);
   }
 }

lib/types.ts

@@ -34,6 +34,7 @@ export interface RendererConfig {
   basePath?: string;
   dev: boolean;
   passthrough404?: boolean;
+  dynamicRoutes?: string[];
 }
 
 export interface ErrorResponse {

lib/vendor/next/LICENSE

@@ -0,0 +1,21 @@
+The MIT License (MIT)
+
+Copyright (c) 2022 Vercel, Inc.
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

lib/vendor/next/escape-regexp.ts

@@ -0,0 +1,11 @@
+// regexp is based on https://github.com/sindresorhus/escape-string-regexp
+const reHasRegExp = /[|\\{}()[\]^$+*?.-]/;
+const reReplaceRegExp = /[|\\{}()[\]^$+*?.-]/g;
+
+export function escapeStringRegexp(str: string) {
+  // see also: https://github.com/lodash/lodash/blob/2da024c3b4f9947a48517639de7560457cd4ec6c/escapeRegExp.js#L23
+  if (reHasRegExp.test(str)) {
+    return str.replace(reReplaceRegExp, '\\$&');
+  }
+  return str;
+}

lib/vendor/next/interpolate-dynamic-path.ts

@@ -0,0 +1,41 @@
+import { ParsedUrlQuery } from 'querystring';
+import { getNamedRouteRegex } from './route-regex';
+
+export function interpolateDynamicPath(
+  pathname: string,
+  params: ParsedUrlQuery,
+  defaultRouteRegex?: ReturnType<typeof getNamedRouteRegex> | undefined,
+) {
+  if (!defaultRouteRegex) return pathname;
+
+  for (const param of Object.keys(defaultRouteRegex.groups)) {
+    const { optional, repeat } = defaultRouteRegex.groups[param];
+    let builtParam = `[${repeat ? '...' : ''}${param}]`;
+
+    if (optional) {
+      builtParam = `[${builtParam}]`;
+    }
+
+    const paramIdx = pathname!.indexOf(builtParam);
+
+    if (paramIdx > -1) {
+      let paramValue: string;
+      const value = params[param];
+
+      if (Array.isArray(value)) {
+        paramValue = value.map((v) => v && encodeURIComponent(v)).join('/');
+      } else if (value) {
+        paramValue = encodeURIComponent(value);
+      } else {
+        paramValue = '';
+      }
+
+      pathname =
+        pathname.slice(0, paramIdx) +
+        paramValue +
+        pathname.slice(paramIdx + builtParam.length);
+    }
+  }
+
+  return pathname;
+}

lib/vendor/next/is-dynamic.ts

@@ -0,0 +1,6 @@
+// Identify /[param]/ in route string
+const TEST_ROUTE = /\/\[[^/]+?\](?=\/|$)/;
+
+export function isDynamicRoute(route: string): boolean {
+  return TEST_ROUTE.test(route);
+}

lib/vendor/next/remove-trailing-slash.ts

@@ -0,0 +1,10 @@
+/**
+ * Removes the trailing slash for a given route or page path. Preserves the
+ * root page. Examples:
+ *   - `/foo/bar/` -> `/foo/bar`
+ *   - `/foo/bar` -> `/foo/bar`
+ *   - `/` -> `/`
+ */
+export function removeTrailingSlash(route: string) {
+  return route.replace(/\/$/, '') || '/';
+}