Publish Canary

- @vercel/build-utils@4.1.1-canary.0 - vercel@25.1.1-canary.0 - @vercel/client@12.0.2-canary.0 - @vercel/go@2.0.2-canary.0 - @vercel/next@3.0.2-canary.0 - @vercel/node@2.1.1-canary.0 - @vercel/python@3.0.2-canary.0 - @vercel/redwood@1.0.2-canary.0 - @vercel/remix@1.0.2-canary.0 - @vercel/ruby@1.3.10-canary.0 - @vercel/static-build@1.0.2-canary.0
[next] Add handling for resolving _next/data URLs (#7935 )
2025-12-11 21:07:47 +00:00 · 2022-06-10 09:37:52 -05:00 · 2022-06-10 08:50:59 -05:00 · 2022-06-09 23:04:39 +00:00 · 2022-06-09 15:15:25 +00:00 · 2022-06-09 06:15:30 +00:00
50 changed files with 861 additions and 102 deletions
--- a/packages/build-utils/package.json
+++ b/packages/build-utils/package.json
@@ -1,6 +1,6 @@
 {
  "name": "@vercel/build-utils",
-  "version": "4.1.0",
+  "version": "4.1.1-canary.0",
  "license": "MIT",
  "main": "./dist/index.js",
  "types": "./dist/index.d.js",
--- a/packages/build-utils/src/detect-builders.ts
+++ b/packages/build-utils/src/detect-builders.ts
@@ -23,7 +23,7 @@ interface ErrorResponse {
 }

 interface Options {
-  tag?: 'canary' | 'latest' | string;
+  tag?: string;
  functions?: BuilderFunctions;
  ignoreBuildScript?: boolean;
  projectSettings?: ProjectSettings;
@@ -278,7 +278,7 @@ export async function detectBuilders(
      // and package.json can be served as static files
      frontendBuilder = {
        use: '@vercel/static',
-        src: '!{api/**,package.json}',
+        src: '!{api/**,package.json,middleware.[jt]s}',
        config: {
          zeroConfig: true,
        },
@@ -355,7 +355,16 @@ function maybeGetApiBuilder(
  apiMatches: Builder[],
  options: Options
 ) {
-  if (!fileName.startsWith('api/')) {
+  const middleware =
+    fileName === 'middleware.js' || fileName === 'middleware.ts';
+
+  // Root-level Middleware file is handled by `@vercel/next`, so don't
+  // schedule a separate Builder when "nextjs" framework is selected
+  if (middleware && options.projectSettings?.framework === 'nextjs') {
+    return null;
+  }
+
+  if (!(fileName.startsWith('api/') || middleware)) {
    return null;
  }

@@ -381,7 +390,7 @@ function maybeGetApiBuilder(

  const { fnPattern, func } = getFunction(fileName, options);

-  const use = (func && func.runtime) || (match && match.use);
+  const use = func?.runtime || match?.use;

  if (!use) {
    return null;
@@ -389,6 +398,10 @@ function maybeGetApiBuilder(

  const config: Config = { zeroConfig: true };

+  if (middleware) {
+    config.middleware = true;
+  }
+
  if (fnPattern && func) {
    config.functions = { [fnPattern]: func };

@@ -428,6 +441,7 @@ function getApiMatches() {
  const config = { zeroConfig: true };

  return [
+    { src: 'middleware.[jt]s', use: `@vercel/node`, config },
    { src: 'api/**/*.js', use: `@vercel/node`, config },
    { src: 'api/**/*.mjs', use: `@vercel/node`, config },
    { src: 'api/**/*.ts', use: `@vercel/node`, config },
--- a/packages/build-utils/src/get-project-paths.ts
+++ b/packages/build-utils/src/get-project-paths.ts
@@ -0,0 +1,60 @@
+import { detectFramework } from './detect-framework';
+import { DetectorFilesystem } from './detectors/filesystem';
+import frameworks from '@vercel/frameworks';
+
+const MAX_DEPTH_TRAVERSE = 3;
+
+export interface GetProjectPathsOptions {
+  fs: DetectorFilesystem;
+  path?: string;
+  skipPaths?: string[];
+  depth?: number;
+}
+
+export type ProjectPath = string;
+
+export const getProjectPaths = async ({
+  fs,
+  path,
+  skipPaths,
+  depth = MAX_DEPTH_TRAVERSE,
+}: GetProjectPathsOptions): Promise<ProjectPath[]> => {
+  if (depth === 0) return [];
+
+  const allPaths: Array<ProjectPath> = [];
+  const topPath: string = path ?? './';
+
+  if (path && skipPaths?.includes(path)) {
+    return allPaths;
+  }
+  const framework = await detectFramework({
+    fs: fs.chdir(topPath),
+    frameworkList: frameworks,
+  });
+
+  if (framework !== null) allPaths.push(topPath);
+
+  if (depth > 1) {
+    const directoryContents = await fs.readdir(topPath);
+    const childDirectories = directoryContents.filter(
+      stat => stat.type === 'dir' && !skipPaths?.includes(stat.path)
+    );
+
+    const paths = (
+      await Promise.all(
+        childDirectories.map(({ path }) => {
+          return getProjectPaths({
+            fs,
+            path,
+            depth: depth - 1,
+            skipPaths,
+          });
+        })
+      )
+    ).flat();
+
+    return [...paths, ...allPaths];
+  }
+
+  return allPaths;
+};
--- a/packages/build-utils/src/index.ts
+++ b/packages/build-utils/src/index.ts
@@ -88,6 +88,7 @@ export {
 } from './detect-builders';
 export { detectFileSystemAPI } from './detect-file-system-api';
 export { detectFramework } from './detect-framework';
+export { getProjectPaths } from './get-project-paths';
 export { DetectorFilesystem } from './detectors/filesystem';
 export { readConfigFile } from './fs/read-config-file';
 export { normalizePath } from './fs/normalize-path';
--- a/packages/build-utils/src/types.ts
+++ b/packages/build-utils/src/types.ts
@@ -428,6 +428,8 @@ export interface BuildResultV2Typical {
 export type BuildResultV2 = BuildResultV2Typical | BuildResultBuildOutput;

 export interface BuildResultV3 {
+  // TODO: use proper `Route` type from `routing-utils` (perhaps move types to a common package)
+  routes?: any[];
  output: Lambda | EdgeFunction;
 }

--- a/packages/build-utils/test/non-deployed-fixtures/32-monorepo-highly-nested/src/backend/app-three/package.json
+++ b/packages/build-utils/test/non-deployed-fixtures/32-monorepo-highly-nested/src/backend/app-three/package.json
@@ -0,0 +1,15 @@
+{
+  "name": "app-three",
+  "version": "1.0.0",
+  "description": "",
+  "main": "index.js",
+  "scripts": {
+    "test": "echo \"Error: no test specified\" && exit 1"
+  },
+  "keywords": [],
+  "author": "",
+  "license": "ISC",
+  "dependencies": {
+    "next": "^4.3.2"
+  }
+}
--- a/packages/build-utils/test/non-deployed-fixtures/32-monorepo-highly-nested/src/backend/package.json
+++ b/packages/build-utils/test/non-deployed-fixtures/32-monorepo-highly-nested/src/backend/package.json
@@ -0,0 +1,5 @@
+{
+  "name": "backend",
+  "license": "MIT",
+  "version": "0.1.0"
+}
--- a/packages/build-utils/test/non-deployed-fixtures/32-monorepo-highly-nested/src/frontend/app-one/package.json
+++ b/packages/build-utils/test/non-deployed-fixtures/32-monorepo-highly-nested/src/frontend/app-one/package.json
@@ -0,0 +1,15 @@
+{
+  "name": "app-one",
+  "version": "1.0.0",
+  "description": "",
+  "main": "index.js",
+  "scripts": {
+    "test": "echo \"Error: no test specified\" && exit 1"
+  },
+  "keywords": [],
+  "author": "",
+  "license": "ISC",
+  "dependencies": {
+    "next": "^4.3.2"
+  }
+}
--- a/packages/build-utils/test/non-deployed-fixtures/32-monorepo-highly-nested/src/frontend/app-two/package.json
+++ b/packages/build-utils/test/non-deployed-fixtures/32-monorepo-highly-nested/src/frontend/app-two/package.json
@@ -0,0 +1,15 @@
+{
+  "name": "app-one",
+  "version": "1.0.0",
+  "description": "",
+  "main": "index.js",
+  "scripts": {
+    "test": "echo \"Error: no test specified\" && exit 1"
+  },
+  "keywords": [],
+  "author": "",
+  "license": "ISC",
+  "dependencies": {
+    "next": "^4.3.2"
+  }
+}
--- a/packages/build-utils/test/non-deployed-fixtures/32-monorepo-highly-nested/src/frontend/package.json
+++ b/packages/build-utils/test/non-deployed-fixtures/32-monorepo-highly-nested/src/frontend/package.json
@@ -0,0 +1,5 @@
+{
+  "name": "frontend",
+  "license": "MIT",
+  "version": "0.1.0"
+}
--- a/packages/build-utils/test/non-deployed-fixtures/33-hybrid-monorepo/backend/app-three/package.json
+++ b/packages/build-utils/test/non-deployed-fixtures/33-hybrid-monorepo/backend/app-three/package.json
@@ -0,0 +1,15 @@
+{
+  "name": "app-three",
+  "version": "1.0.0",
+  "description": "",
+  "main": "index.js",
+  "scripts": {
+    "test": "echo \"Error: no test specified\" && exit 1"
+  },
+  "keywords": [],
+  "author": "",
+  "license": "ISC",
+  "dependencies": {
+    "next": "^4.3.2"
+  }
+}
--- a/packages/build-utils/test/non-deployed-fixtures/33-hybrid-monorepo/backend/package.json
+++ b/packages/build-utils/test/non-deployed-fixtures/33-hybrid-monorepo/backend/package.json
@@ -0,0 +1,5 @@
+{
+  "name": "backend",
+  "license": "MIT",
+  "version": "0.1.0"
+}
--- a/packages/build-utils/test/non-deployed-fixtures/33-hybrid-monorepo/frontend/a/package.json
+++ b/packages/build-utils/test/non-deployed-fixtures/33-hybrid-monorepo/frontend/a/package.json
@@ -0,0 +1,15 @@
+{
+  "name": "a",
+  "version": "1.0.0",
+  "description": "",
+  "main": "index.js",
+  "scripts": {
+    "test": "echo \"Error: no test specified\" && exit 1"
+  },
+  "keywords": [],
+  "author": "",
+  "license": "ISC",
+  "dependencies": {
+    "debug": "^4.3.2"
+  }
+}
--- a/packages/build-utils/test/non-deployed-fixtures/33-hybrid-monorepo/frontend/b/package.json
+++ b/packages/build-utils/test/non-deployed-fixtures/33-hybrid-monorepo/frontend/b/package.json
@@ -0,0 +1,15 @@
+{
+  "name": "b",
+  "version": "1.0.0",
+  "description": "",
+  "main": "index.js",
+  "scripts": {
+    "test": "echo \"Error: no test specified\" && exit 1"
+  },
+  "keywords": [],
+  "author": "",
+  "license": "ISC",
+  "dependencies": {
+    "cowsay": "^1.5.0"
+  }
+}
--- a/packages/build-utils/test/non-deployed-fixtures/33-hybrid-monorepo/frontend/package.json
+++ b/packages/build-utils/test/non-deployed-fixtures/33-hybrid-monorepo/frontend/package.json
@@ -0,0 +1,9 @@
+{
+  "name": "21-npm-workspaces",
+  "version": "1.0.0",
+  "private": true,
+  "workspaces": [
+    "a",
+    "b"
+  ]
+}
--- a/packages/build-utils/test/non-deployed-fixtures/34-monorepo-no-workspaces/backend/app-three/package.json
+++ b/packages/build-utils/test/non-deployed-fixtures/34-monorepo-no-workspaces/backend/app-three/package.json
@@ -0,0 +1,15 @@
+{
+  "name": "app-three",
+  "version": "1.0.0",
+  "description": "",
+  "main": "index.js",
+  "scripts": {
+    "test": "echo \"Error: no test specified\" && exit 1"
+  },
+  "keywords": [],
+  "author": "",
+  "license": "ISC",
+  "dependencies": {
+    "next": "^4.3.2"
+  }
+}
--- a/packages/build-utils/test/non-deployed-fixtures/34-monorepo-no-workspaces/backend/package.json
+++ b/packages/build-utils/test/non-deployed-fixtures/34-monorepo-no-workspaces/backend/package.json
@@ -0,0 +1,5 @@
+{
+  "name": "backend",
+  "license": "MIT",
+  "version": "0.1.0"
+}
--- a/packages/build-utils/test/non-deployed-fixtures/34-monorepo-no-workspaces/frontend/app-one/package.json
+++ b/packages/build-utils/test/non-deployed-fixtures/34-monorepo-no-workspaces/frontend/app-one/package.json
@@ -0,0 +1,15 @@
+{
+  "name": "app-one",
+  "version": "1.0.0",
+  "description": "",
+  "main": "index.js",
+  "scripts": {
+    "test": "echo \"Error: no test specified\" && exit 1"
+  },
+  "keywords": [],
+  "author": "",
+  "license": "ISC",
+  "dependencies": {
+    "next": "^4.3.2"
+  }
+}
--- a/packages/build-utils/test/non-deployed-fixtures/34-monorepo-no-workspaces/frontend/app-two/package.json
+++ b/packages/build-utils/test/non-deployed-fixtures/34-monorepo-no-workspaces/frontend/app-two/package.json
@@ -0,0 +1,15 @@
+{
+  "name": "app-two",
+  "version": "1.0.0",
+  "description": "",
+  "main": "index.js",
+  "scripts": {
+    "test": "echo \"Error: no test specified\" && exit 1"
+  },
+  "keywords": [],
+  "author": "",
+  "license": "ISC",
+  "dependencies": {
+    "next": "^4.3.2"
+  }
+}
--- a/packages/build-utils/test/non-deployed-fixtures/34-monorepo-no-workspaces/frontend/package.json
+++ b/packages/build-utils/test/non-deployed-fixtures/34-monorepo-no-workspaces/frontend/package.json
@@ -0,0 +1,5 @@
+{
+  "name": "frontend",
+  "license": "MIT",
+  "version": "0.1.0"
+}
--- a/packages/build-utils/test/non-deployed-fixtures/35-no-monorepo/package.json
+++ b/packages/build-utils/test/non-deployed-fixtures/35-no-monorepo/package.json
@@ -0,0 +1,12 @@
+{
+  "name": "app-one",
+  "version": "1.0.0",
+  "description": "",
+  "main": "index.js",
+  "scripts": {
+    "test": "echo \"Error: no test specified\" && exit 1"
+  },
+  "keywords": [],
+  "author": "",
+  "license": "ISC"
+}
--- a/packages/build-utils/test/non-deployed-fixtures/36-monorepo-some-nested/frontend/app-one/app-three/package.json
+++ b/packages/build-utils/test/non-deployed-fixtures/36-monorepo-some-nested/frontend/app-one/app-three/package.json
@@ -0,0 +1,15 @@
+{
+  "name": "app-one",
+  "version": "1.0.0",
+  "description": "",
+  "main": "index.js",
+  "scripts": {
+    "test": "echo \"Error: no test specified\" && exit 1"
+  },
+  "keywords": [],
+  "author": "",
+  "license": "ISC",
+  "dependencies": {
+    "next": "^4.3.2"
+  }
+}
--- a/packages/build-utils/test/non-deployed-fixtures/36-monorepo-some-nested/frontend/app-two/package.json
+++ b/packages/build-utils/test/non-deployed-fixtures/36-monorepo-some-nested/frontend/app-two/package.json
@@ -0,0 +1,15 @@
+{
+  "name": "app-two",
+  "version": "1.0.0",
+  "description": "",
+  "main": "index.js",
+  "scripts": {
+    "test": "echo \"Error: no test specified\" && exit 1"
+  },
+  "keywords": [],
+  "author": "",
+  "license": "ISC",
+  "dependencies": {
+    "next": "^4.3.2"
+  }
+}
--- a/packages/build-utils/test/non-deployed-fixtures/36-monorepo-some-nested/frontend/package.json
+++ b/packages/build-utils/test/non-deployed-fixtures/36-monorepo-some-nested/frontend/package.json
@@ -0,0 +1,5 @@
+{
+  "name": "frontend",
+  "license": "MIT",
+  "version": "0.1.0"
+}
--- a/packages/build-utils/test/non-deployed-fixtures/37-project-depth-one-level/package.json
+++ b/packages/build-utils/test/non-deployed-fixtures/37-project-depth-one-level/package.json
@@ -0,0 +1,15 @@
+{
+  "name": "app-one",
+  "version": "1.0.0",
+  "description": "",
+  "main": "index.js",
+  "scripts": {
+    "test": "echo \"Error: no test specified\" && exit 1"
+  },
+  "keywords": [],
+  "author": "",
+  "license": "ISC",
+  "dependencies": {
+    "next": "^4.3.2"
+  }
+}
--- a/packages/build-utils/test/unit.builds-and-routes-detector.test.ts
+++ b/packages/build-utils/test/unit.builds-and-routes-detector.test.ts
@@ -78,7 +78,7 @@ describe('Test `detectBuilders`', () => {
    expect(builders![0].use).toBe('@vercel/node');
    expect(builders![0].src).toBe('api/users.js');
    expect(builders![1].use).toBe('@vercel/static');
-    expect(builders![1].src).toBe('!{api/**,package.json}');
+    expect(builders![1].src).toBe('!{api/**,package.json,middleware.[jt]s}');
    expect(builders!.length).toBe(2);
    expect(errors).toBe(null);
  });
@@ -89,7 +89,7 @@ describe('Test `detectBuilders`', () => {
    expect(builders![0].use).toBe('@vercel/node');
    expect(builders![0].src).toBe('api/[endpoint].js');
    expect(builders![1].use).toBe('@vercel/static');
-    expect(builders![1].src).toBe('!{api/**,package.json}');
+    expect(builders![1].src).toBe('!{api/**,package.json,middleware.[jt]s}');
    expect(builders!.length).toBe(2);
    expect(errors).toBe(null);
  });
@@ -144,7 +144,7 @@ describe('Test `detectBuilders`', () => {
    expect(builders![0].use).toBe('@vercel/node');
    expect(builders![0].src).toBe('api/endpoint.js');
    expect(builders![1].use).toBe('@vercel/static');
-    expect(builders![1].src).toBe('!{api/**,package.json}');
+    expect(builders![1].src).toBe('!{api/**,package.json,middleware.[jt]s}');
    expect(builders!.length).toBe(2);
  });

@@ -347,7 +347,7 @@ describe('Test `detectBuilders`', () => {
    expect(builders![0].use).toBe('@vercel/node');
    expect(builders![0].src).toBe('api/index.ts');
    expect(builders![1].use).toBe('@vercel/static');
-    expect(builders![1].src).toBe('!{api/**,package.json}');
+    expect(builders![1].src).toBe('!{api/**,package.json,middleware.[jt]s}');
  });

  it('functions with nextjs', async () => {
@@ -1010,7 +1010,7 @@ describe('Test `detectBuilders` with `featHandleMiss=true`', () => {
    expect(builders![0].use).toBe('@vercel/node');
    expect(builders![0].src).toBe('api/users.js');
    expect(builders![1].use).toBe('@vercel/static');
-    expect(builders![1].src).toBe('!{api/**,package.json}');
+    expect(builders![1].src).toBe('!{api/**,package.json,middleware.[jt]s}');
    expect(builders!.length).toBe(2);
    expect(errors).toBe(null);

@@ -1032,7 +1032,7 @@ describe('Test `detectBuilders` with `featHandleMiss=true`', () => {
    expect(builders![0].use).toBe('@vercel/node');
    expect(builders![0].src).toBe('api/[endpoint].js');
    expect(builders![1].use).toBe('@vercel/static');
-    expect(builders![1].src).toBe('!{api/**,package.json}');
+    expect(builders![1].src).toBe('!{api/**,package.json,middleware.[jt]s}');
    expect(builders!.length).toBe(2);
    expect(errors).toBe(null);
  });
@@ -1258,7 +1258,7 @@ describe('Test `detectBuilders` with `featHandleMiss=true`', () => {
    expect(builders![0].use).toBe('@vercel/node');
    expect(builders![0].src).toBe('api/endpoint.js');
    expect(builders![1].use).toBe('@vercel/static');
-    expect(builders![1].src).toBe('!{api/**,package.json}');
+    expect(builders![1].src).toBe('!{api/**,package.json,middleware.[jt]s}');
    expect(builders!.length).toBe(2);

    expect(defaultRoutes!.length).toBe(2);
@@ -1288,7 +1288,7 @@ describe('Test `detectBuilders` with `featHandleMiss=true`', () => {
    expect(builders![0].use).toBe('@vercel/node');
    expect(builders![0].src).toBe('api/version.js');
    expect(builders![1].use).toBe('@vercel/static');
-    expect(builders![1].src).toBe('!{api/**,package.json}');
+    expect(builders![1].src).toBe('!{api/**,package.json,middleware.[jt]s}');
    expect(builders!.length).toBe(2);

    expect(defaultRoutes!.length).toBe(2);
@@ -1567,7 +1567,7 @@ describe('Test `detectBuilders` with `featHandleMiss=true`', () => {
    expect(builders![0].use).toBe('@vercel/node');
    expect(builders![0].src).toBe('api/index.ts');
    expect(builders![1].use).toBe('@vercel/static');
-    expect(builders![1].src).toBe('!{api/**,package.json}');
+    expect(builders![1].src).toBe('!{api/**,package.json,middleware.[jt]s}');
    expect(errorRoutes!.length).toBe(1);
    expect((errorRoutes![0] as Source).status).toBe(404);
  });
@@ -2228,6 +2228,55 @@ describe('Test `detectBuilders` with `featHandleMiss=true`', () => {
    expect(builders).toBe(null);
    expect(errors).toBe(null);
  });
+
+  it('no package.json + no build + root-level "middleware.js"', async () => {
+    const files = ['middleware.js', 'index.html', 'web/middleware.js'];
+    const { builders, errors } = await detectBuilders(files, null, {
+      featHandleMiss,
+    });
+    expect(builders![0].use).toBe('@vercel/node');
+    expect(builders![0].src).toBe('middleware.js');
+    expect(builders![0].config?.middleware).toEqual(true);
+    expect(builders![1].use).toBe('@vercel/static');
+    expect(builders![1].src).toBe('!{api/**,package.json,middleware.[jt]s}');
+    expect(builders!.length).toBe(2);
+    expect(errors).toBe(null);
+  });
+
+  it('no package.json + no build + root-level "middleware.ts"', async () => {
+    const files = ['middleware.ts', 'index.html', 'web/middleware.js'];
+    const { builders, errors } = await detectBuilders(files, null, {
+      featHandleMiss,
+    });
+    expect(builders![0].use).toBe('@vercel/node');
+    expect(builders![0].src).toBe('middleware.ts');
+    expect(builders![0].config?.middleware).toEqual(true);
+    expect(builders![1].use).toBe('@vercel/static');
+    expect(builders![1].src).toBe('!{api/**,package.json,middleware.[jt]s}');
+    expect(builders!.length).toBe(2);
+    expect(errors).toBe(null);
+  });
+
+  it('should not add middleware builder when "nextjs" framework is selected', async () => {
+    const files = ['package.json', 'pages/index.ts', 'middleware.ts'];
+    const projectSettings = {
+      framework: 'nextjs',
+    };
+    const { builders } = await detectBuilders(files, null, {
+      projectSettings,
+      featHandleMiss,
+    });
+    expect(builders).toEqual([
+      {
+        use: '@vercel/next',
+        src: 'package.json',
+        config: {
+          zeroConfig: true,
+          framework: projectSettings.framework,
+        },
+      },
+    ]);
+  });
 });

 it('Test `detectRoutes`', async () => {
--- a/packages/build-utils/test/unit.get-project-paths.test.ts
+++ b/packages/build-utils/test/unit.get-project-paths.test.ts
@@ -0,0 +1,70 @@
+import path from 'path';
+import { normalizePath } from '../src';
+import { getProjectPaths, ProjectPath } from '../src/get-project-paths';
+import { FixtureFilesystem } from './utils/fixture-filesystem';
+
+describe.each<{
+  fixturePath: string;
+  resultPaths: ProjectPath[];
+  skipPaths?: ProjectPath[];
+  readdirCalls: number;
+}>([
+  {
+    fixturePath: '32-monorepo-highly-nested',
+    resultPaths: [],
+    readdirCalls: 2,
+  },
+  {
+    fixturePath: '33-hybrid-monorepo',
+    resultPaths: ['backend/app-three'],
+    readdirCalls: 2,
+    skipPaths: ['frontend'],
+  },
+  {
+    fixturePath: '34-monorepo-no-workspaces',
+    resultPaths: ['backend/app-three', 'frontend/app-one', 'frontend/app-two'],
+    readdirCalls: 3,
+  },
+  {
+    fixturePath: '35-no-monorepo',
+    resultPaths: [],
+    readdirCalls: 1,
+  },
+  {
+    fixturePath: '36-monorepo-some-nested',
+    resultPaths: ['frontend/app-two'],
+    readdirCalls: 2,
+  },
+  {
+    fixturePath: '37-project-depth-one-level',
+    resultPaths: ['./'],
+    readdirCalls: 1,
+  },
+])(
+  '`getProjectPaths()`',
+  ({ resultPaths, readdirCalls, fixturePath, skipPaths }) => {
+    const testName =
+      resultPaths.length > 0
+        ? `should detect ${resultPaths.join()} project${
+            resultPaths.length > 1 ? 's' : ''
+          } for ${fixturePath}`
+        : `should not detect any path for ${fixturePath}`;
+
+    it(testName, async () => {
+      const fixture = path.join(
+        __dirname,
+        'non-deployed-fixtures',
+        fixturePath
+      );
+      const fs = new FixtureFilesystem(fixture);
+      const mockReaddir = jest.fn().mockImplementation(fs.readdir);
+      const mockHasPath = jest.fn().mockImplementation(fs.hasPath);
+      fs.readdir = mockReaddir;
+      fs.hasPath = mockHasPath;
+      const actualPaths = await getProjectPaths({ fs, skipPaths });
+      const normalizedPaths = actualPaths.map(path => normalizePath(path));
+      expect(normalizedPaths).toEqual(resultPaths);
+      expect(fs.readdir).toHaveBeenCalledTimes(readdirCalls);
+    });
+  }
+);
--- a/packages/cli/package.json
+++ b/packages/cli/package.json
@@ -1,6 +1,6 @@
 {
  "name": "vercel",
-  "version": "25.1.0",
+  "version": "25.1.1-canary.0",
  "preferGlobal": true,
  "license": "Apache-2.0",
  "description": "The command-line interface for Vercel",
@@ -42,15 +42,15 @@
    "node": ">= 14"
  },
  "dependencies": {
-    "@vercel/build-utils": "4.1.0",
-    "@vercel/go": "2.0.1",
-    "@vercel/next": "3.0.1",
-    "@vercel/node": "2.1.0",
-    "@vercel/python": "3.0.1",
-    "@vercel/redwood": "1.0.1",
-    "@vercel/remix": "1.0.1",
-    "@vercel/ruby": "1.3.9",
-    "@vercel/static-build": "1.0.1",
+    "@vercel/build-utils": "4.1.1-canary.0",
+    "@vercel/go": "2.0.2-canary.0",
+    "@vercel/next": "3.0.2-canary.0",
+    "@vercel/node": "2.1.1-canary.0",
+    "@vercel/python": "3.0.2-canary.0",
+    "@vercel/redwood": "1.0.2-canary.0",
+    "@vercel/remix": "1.0.2-canary.0",
+    "@vercel/ruby": "1.3.10-canary.0",
+    "@vercel/static-build": "1.0.2-canary.0",
    "update-notifier": "5.1.0"
  },
  "devDependencies": {
@@ -94,7 +94,7 @@
    "@types/which": "1.3.2",
    "@types/write-json-file": "2.2.1",
    "@types/yauzl-promise": "2.1.0",
-    "@vercel/client": "12.0.1",
+    "@vercel/client": "12.0.2-canary.0",
    "@vercel/frameworks": "1.0.1",
    "@vercel/ncc": "0.24.0",
    "@zeit/fun": "0.11.2",
--- a/packages/cli/src/commands/build.ts
+++ b/packages/cli/src/commands/build.ts
@@ -101,6 +101,7 @@ export default async function main(client: Client): Promise<number> {
  const argv = getArgs(client.argv.slice(2), {
    '--cwd': String,
    '--prod': Boolean,
+    '--yes': Boolean,
  });

  if (argv['--help']) {
@@ -114,12 +115,18 @@ export default async function main(client: Client): Promise<number> {
  }
  const cwd = process.cwd();

+  // Build `target` influences which environment variables will be used
+  const target = argv['--prod'] ? 'production' : 'preview';
+  const yes = Boolean(argv['--yes']);
+
  // TODO: read project settings from the API, fall back to local `project.json` if that fails

  // Read project settings, and pull them from Vercel if necessary
  let project = await readProjectSettings(join(cwd, VERCEL_DIR));
  const isTTY = process.stdin.isTTY;
  while (!project?.settings) {
+    let confirmed = yes;
+    if (!confirmed) {
      if (!isTTY) {
        client.output.print(
          `No Project Settings found locally. Run ${cli.getCommandName(
@@ -129,27 +136,32 @@ export default async function main(client: Client): Promise<number> {
        return 1;
      }

-    const confirmed = await confirm(
+      confirmed = await confirm(
        `No Project Settings found locally. Run ${cli.getCommandName(
          'pull'
        )} for retrieving them?`,
        true
      );
+    }
    if (!confirmed) {
      client.output.print(`Aborted. No Project Settings retrieved.\n`);
      return 0;
    }
-    client.argv = [];
+    const { argv: originalArgv } = client;
+    client.argv = [
+      ...originalArgv.slice(0, 2),
+      'pull',
+      `--environment`,
+      target,
+    ];
    const result = await pull(client);
    if (result !== 0) {
      return result;
    }
+    client.argv = originalArgv;
    project = await readProjectSettings(join(cwd, VERCEL_DIR));
  }

-  // Build `target` influences which environment variables will be used
-  const target = argv['--prod'] ? 'production' : 'preview';
-
  // TODO: load env vars from the API, fall back to local files if that fails

  const envPath = await checkExists([
--- a/packages/cli/test/fixtures/unit/commands/build/middleware/.vercel/project.json
+++ b/packages/cli/test/fixtures/unit/commands/build/middleware/.vercel/project.json
@@ -0,0 +1,7 @@
+{
+  "orgId": ".",
+  "projectId": ".",
+  "settings": {
+    "framework": null
+  }
+}
--- a/packages/cli/test/fixtures/unit/commands/build/middleware/index.html
+++ b/packages/cli/test/fixtures/unit/commands/build/middleware/index.html
@@ -0,0 +1 @@
+<h1>Vercel</h1>
--- a/packages/cli/test/fixtures/unit/commands/build/middleware/middleware.js
+++ b/packages/cli/test/fixtures/unit/commands/build/middleware/middleware.js
@@ -0,0 +1 @@
+export default req => new Response('middleware');
--- a/packages/cli/test/fixtures/unit/commands/build/static-pull/.vercel/project.json
+++ b/packages/cli/test/fixtures/unit/commands/build/static-pull/.vercel/project.json
@@ -0,0 +1,4 @@
+{
+  "projectId": "vercel-pull-next",
+  "orgId": "team_dummy"
+}
--- a/packages/cli/test/fixtures/unit/commands/build/static-pull/index.html
+++ b/packages/cli/test/fixtures/unit/commands/build/static-pull/index.html
@@ -0,0 +1 @@
+<h1>Vercel</h1>
--- a/packages/cli/test/unit/commands/build.test.ts
+++ b/packages/cli/test/unit/commands/build.test.ts
@@ -1,8 +1,11 @@
 import ms from 'ms';
 import fs from 'fs-extra';
 import { join } from 'path';
-import { client } from '../../mocks/client';
 import build from '../../../src/commands/build';
+import { client } from '../../mocks/client';
+import { defaultProject, useProject } from '../../mocks/project';
+import { useTeams } from '../../mocks/team';
+import { useUser } from '../../mocks/user';

 jest.setTimeout(ms('1 minute'));

@@ -139,7 +142,7 @@ describe('build', () => {
            require: '@vercel/static',
            apiVersion: 2,
            use: '@vercel/static',
-            src: '!{api/**,package.json}',
+            src: '!{api/**,package.json,middleware.[jt]s}',
            config: {
              zeroConfig: true,
            },
@@ -204,7 +207,7 @@ describe('build', () => {
            require: '@vercel/static',
            apiVersion: 2,
            use: '@vercel/static',
-            src: '!{api/**,package.json}',
+            src: '!{api/**,package.json,middleware.[jt]s}',
            config: {
              zeroConfig: true,
            },
@@ -237,4 +240,135 @@ describe('build', () => {
      delete process.env.__VERCEL_BUILD_RUNNING;
    }
  });
+
+  it('should pull "preview" env vars by default', async () => {
+    const cwd = fixture('static-pull');
+    useUser();
+    useTeams('team_dummy');
+    useProject({
+      ...defaultProject,
+      id: 'vercel-pull-next',
+      name: 'vercel-pull-next',
+    });
+    const envFilePath = join(cwd, '.vercel', '.env.preview.local');
+    const projectJsonPath = join(cwd, '.vercel', 'project.json');
+    const originalProjectJson = await fs.readJSON(
+      join(cwd, '.vercel/project.json')
+    );
+    try {
+      process.chdir(cwd);
+      client.setArgv('build', '--yes');
+      const exitCode = await build(client);
+      expect(exitCode).toEqual(0);
+
+      const previewEnv = await fs.readFile(envFilePath, 'utf8');
+      const envFileHasPreviewEnv = previewEnv.includes(
+        'REDIS_CONNECTION_STRING'
+      );
+      expect(envFileHasPreviewEnv).toBeTruthy();
+    } finally {
+      await fs.remove(envFilePath);
+      await fs.writeJSON(projectJsonPath, originalProjectJson, { spaces: 2 });
+      process.chdir(originalCwd);
+      delete process.env.__VERCEL_BUILD_RUNNING;
+    }
+  });
+
+  it('should pull "production" env vars with `--prod`', async () => {
+    const cwd = fixture('static-pull');
+    useUser();
+    useTeams('team_dummy');
+    useProject({
+      ...defaultProject,
+      id: 'vercel-pull-next',
+      name: 'vercel-pull-next',
+    });
+    const envFilePath = join(cwd, '.vercel', '.env.production.local');
+    const projectJsonPath = join(cwd, '.vercel', 'project.json');
+    const originalProjectJson = await fs.readJSON(
+      join(cwd, '.vercel/project.json')
+    );
+    try {
+      process.chdir(cwd);
+      client.setArgv('build', '--yes', '--prod');
+      const exitCode = await build(client);
+      expect(exitCode).toEqual(0);
+
+      const prodEnv = await fs.readFile(envFilePath, 'utf8');
+      const envFileHasProductionEnv1 = prodEnv.includes(
+        'REDIS_CONNECTION_STRING'
+      );
+      expect(envFileHasProductionEnv1).toBeTruthy();
+      const envFileHasProductionEnv2 = prodEnv.includes(
+        'SQL_CONNECTION_STRING'
+      );
+      expect(envFileHasProductionEnv2).toBeTruthy();
+    } finally {
+      await fs.remove(envFilePath);
+      await fs.writeJSON(projectJsonPath, originalProjectJson, { spaces: 2 });
+      process.chdir(originalCwd);
+      delete process.env.__VERCEL_BUILD_RUNNING;
+    }
+  });
+
+  it('should build root-level `middleware.js` and exclude from static files', async () => {
+    const cwd = fixture('middleware');
+    const output = join(cwd, '.vercel/output');
+    try {
+      process.chdir(cwd);
+      const exitCode = await build(client);
+      expect(exitCode).toEqual(0);
+
+      // `builds.json` says that "@vercel/static" was run
+      const builds = await fs.readJSON(join(output, 'builds.json'));
+      expect(builds).toMatchObject({
+        target: 'preview',
+        builds: [
+          {
+            require: '@vercel/node',
+            apiVersion: 3,
+            use: '@vercel/node',
+            src: 'middleware.js',
+            config: {
+              zeroConfig: true,
+              middleware: true,
+            },
+          },
+          {
+            require: '@vercel/static',
+            apiVersion: 2,
+            use: '@vercel/static',
+            src: '!{api/**,package.json,middleware.[jt]s}',
+            config: {
+              zeroConfig: true,
+            },
+          },
+        ],
+      });
+
+      // `config.json` includes the "middlewarePath" route
+      const config = await fs.readJSON(join(output, 'config.json'));
+      expect(config).toMatchObject({
+        version: 3,
+        routes: [
+          { src: '/.*', middlewarePath: 'middleware', continue: true },
+          { handle: 'filesystem' },
+          { src: '^/api(/.*)?$', status: 404 },
+          { handle: 'error' },
+          { status: 404, src: '^(?!/api).*$', dest: '/404.html' },
+        ],
+      });
+
+      // "static" directory contains `index.html`, but *not* `middleware.js`
+      const staticFiles = await fs.readdir(join(output, 'static'));
+      expect(staticFiles.sort()).toEqual(['index.html']);
+
+      // "functions" directory contains `middleware.func`
+      const functions = await fs.readdir(join(output, 'functions'));
+      expect(functions.sort()).toEqual(['middleware.func']);
+    } finally {
+      process.chdir(originalCwd);
+      delete process.env.__VERCEL_BUILD_RUNNING;
+    }
+  });
 });
--- a/packages/client/package.json
+++ b/packages/client/package.json
@@ -1,6 +1,6 @@
 {
  "name": "@vercel/client",
-  "version": "12.0.1",
+  "version": "12.0.2-canary.0",
  "main": "dist/index.js",
  "typings": "dist/index.d.ts",
  "homepage": "https://vercel.com",
@@ -42,7 +42,7 @@
    ]
  },
  "dependencies": {
-    "@vercel/build-utils": "4.1.0",
+    "@vercel/build-utils": "4.1.1-canary.0",
    "@zeit/fetch": "5.2.0",
    "async-retry": "1.2.3",
    "async-sema": "3.0.0",
--- a/packages/go/package.json
+++ b/packages/go/package.json
@@ -1,6 +1,6 @@
 {
  "name": "@vercel/go",
-  "version": "2.0.1",
+  "version": "2.0.2-canary.0",
  "license": "MIT",
  "main": "./dist/index",
  "homepage": "https://vercel.com/docs/runtimes#official-runtimes/go",
@@ -25,7 +25,7 @@
    "@types/fs-extra": "^5.0.5",
    "@types/node-fetch": "^2.3.0",
    "@types/tar": "^4.0.0",
-    "@vercel/build-utils": "4.1.0",
+    "@vercel/build-utils": "4.1.1-canary.0",
    "@vercel/ncc": "0.24.0",
    "async-retry": "1.3.1",
    "execa": "^1.0.0",
--- a/packages/next/package.json
+++ b/packages/next/package.json
@@ -1,6 +1,6 @@
 {
  "name": "@vercel/next",
-  "version": "3.0.1",
+  "version": "3.0.2-canary.0",
  "license": "MIT",
  "main": "./dist/index",
  "homepage": "https://vercel.com/docs/runtimes#official-runtimes/next-js",
@@ -45,7 +45,7 @@
    "@types/semver": "6.0.0",
    "@types/text-table": "0.2.1",
    "@types/webpack-sources": "3.2.0",
-    "@vercel/build-utils": "4.1.0",
+    "@vercel/build-utils": "4.1.1-canary.0",
    "@vercel/nft": "0.19.1",
    "@vercel/routing-utils": "1.13.4",
    "async-sema": "3.0.1",
--- a/packages/next/src/index.ts
+++ b/packages/next/src/index.ts
@@ -1294,6 +1294,7 @@ export const build: BuildV2 = async ({
        entryPath,
        baseDir,
        dataRoutes,
+        buildId,
        escapedBuildId,
        outputDirectory,
        trailingSlashRedirects,
--- a/packages/next/src/server-build.ts
+++ b/packages/next/src/server-build.ts
@@ -55,6 +55,7 @@ import prettyBytes from 'pretty-bytes';
 // related PR: https://github.com/vercel/next.js/pull/30046
 const CORRECT_NOT_FOUND_ROUTES_VERSION = 'v12.0.1';
 const CORRECT_MIDDLEWARE_ORDER_VERSION = 'v12.1.7-canary.29';
+const NEXT_DATA_MIDDLEWARE_RESOLVING_VERSION = 'v12.1.7-canary.33';

 export async function serverBuild({
  dynamicPages,
@@ -65,6 +66,7 @@ export async function serverBuild({
  workPath,
  entryPath,
  nodeVersion,
+  buildId,
  escapedBuildId,
  dynamicPrefix,
  entryDirectory,
@@ -101,6 +103,7 @@ export async function serverBuild({
  privateOutputs: { files: Files; routes: Route[] };
  entryPath: string;
  dynamicPrefix: string;
+  buildId: string;
  escapedBuildId: string;
  wildcardConfig: BuildResult['wildcard'];
  nodeVersion: NodeVersion;
@@ -796,6 +799,10 @@ export async function serverBuild({
    isCorrectMiddlewareOrder,
  });

+  const isNextDataServerResolving =
+    middleware.staticRoutes.length > 0 &&
+    semver.gte(nextVersion, NEXT_DATA_MIDDLEWARE_RESOLVING_VERSION);
+
  const dynamicRoutes = await getDynamicRoutes(
    entryPath,
    entryDirectory,
@@ -876,6 +883,53 @@ export async function serverBuild({
    }
  }

+  const normalizeNextDataRoute = isNextDataServerResolving
+    ? [
+        // strip _next/data prefix for resolving
+        {
+          src: `^${path.join(
+            '/',
+            entryDirectory,
+            '/_next/data/',
+            escapedBuildId,
+            '/(.*).json'
+          )}`,
+          dest: `${path.join('/', entryDirectory, '/$1')}`,
+          continue: true,
+          override: true,
+          has: [
+            {
+              type: 'header',
+              key: 'x-nextjs-data',
+            },
+          ],
+        },
+      ]
+    : [];
+
+  const denormalizeNextDataRoute = isNextDataServerResolving
+    ? [
+        {
+          src: '/(.*)',
+          has: [
+            {
+              type: 'header',
+              key: 'x-nextjs-data',
+            },
+          ],
+          dest: `${path.join(
+            '/',
+            entryDirectory,
+            '/_next/data/',
+            buildId,
+            '/$1.json'
+          )}`,
+          continue: true,
+          override: true,
+        },
+      ]
+    : [];
+
  return {
    wildcard: wildcardConfig,
    images:
@@ -900,6 +954,15 @@ export async function serverBuild({
      ...staticDirectoryFiles,
      ...privateOutputs.files,
      ...middleware.edgeFunctions,
+      ...(isNextDataServerResolving
+        ? {
+            __next_data_catchall: new FileBlob({
+              contentType: 'application/json',
+              mode: 0o644,
+              data: '{}',
+            }),
+          }
+        : {}),
    },
    routes: [
      /*
@@ -919,6 +982,9 @@ export async function serverBuild({

      ...privateOutputs.routes,

+      // normalize _next/data URL before processing redirects
+      ...normalizeNextDataRoute,
+
      ...(i18n
        ? [
            // Handle auto-adding current default locale to path based on
@@ -1077,6 +1143,9 @@ export async function serverBuild({
            },
          ]),

+      // we need to undo _next/data normalize before checking filesystem
+      ...denormalizeNextDataRoute,
+
      // while middleware was in beta the order came right before
      // handle: 'filesystem' we maintain this for older versions
      // to prevent a local/deploy mismatch
@@ -1098,6 +1167,11 @@ export async function serverBuild({
          ]
        : []),

+      // normalize _next/data URL before processing rewrites
+      ...normalizeNextDataRoute,
+
+      ...(!isNextDataServerResolving
+        ? [
            // No-op _next/data rewrite to trigger handle: 'rewrites' and then 404
            // if no match to prevent rewriting _next/data unexpectedly
            {
@@ -1105,6 +1179,8 @@ export async function serverBuild({
              dest: path.join('/', entryDirectory, '_next/data/$1'),
              check: true,
            },
+          ]
+        : []),

      // These need to come before handle: miss or else they are grouped
      // with that routing section
@@ -1163,9 +1239,14 @@ export async function serverBuild({
      // if there no rewrites
      { handle: 'rewrite' },

+      // re-build /_next/data URL after resolving
+      ...denormalizeNextDataRoute,
+
      // /_next/data routes for getServerProps/getStaticProps pages
      ...dataRoutes,

+      ...(!isNextDataServerResolving
+        ? [
            // ensure we 404 for non-existent _next/data routes before
            // trying page dynamic routes
            {
@@ -1173,11 +1254,30 @@ export async function serverBuild({
              dest: path.join('/', entryDirectory, '404'),
              status: 404,
            },
+          ]
+        : []),

      // Dynamic routes (must come after dataRoutes as dataRoutes are more
      // specific)
      ...dynamicRoutes,

+      ...(isNextDataServerResolving
+        ? [
+            // add a catch-all data route so we don't 404 when getting
+            // middleware effects
+            {
+              src: `^${path.join(
+                '/',
+                entryDirectory,
+                '/_next/data/',
+                escapedBuildId,
+                '/(.*).json'
+              )}`,
+              dest: '__next_data_catchall',
+            },
+          ]
+        : []),
+
      // routes to call after a file has been matched
      { handle: 'hit' },
      // Before we handle static files we need to set proper caching headers
--- a/packages/node/package.json
+++ b/packages/node/package.json
@@ -1,6 +1,6 @@
 {
  "name": "@vercel/node",
-  "version": "2.1.0",
+  "version": "2.1.1-canary.0",
  "license": "MIT",
  "main": "./dist/index",
  "homepage": "https://vercel.com/docs/runtimes#official-runtimes/node-js",
@@ -45,7 +45,7 @@
    "@types/etag": "1.8.0",
    "@types/jest": "27.4.1",
    "@types/test-listen": "1.1.0",
-    "@vercel/build-utils": "4.1.0",
+    "@vercel/build-utils": "4.1.1-canary.0",
    "@vercel/ncc": "0.24.0",
    "@vercel/nft": "0.19.1",
    "@vercel/static-config": "2.0.1",
--- a/packages/node/src/index.ts
+++ b/packages/node/src/index.ts
@@ -373,12 +373,38 @@ export const build: BuildV3 = async ({
  );
  debug(`Trace complete [${Date.now() - traceTime}ms]`);

+  let routes: BuildResultV3['routes'];
+  let output: BuildResultV3['output'] | undefined;
+
+  const handler = renameTStoJS(relative(baseDir, entrypointPath));
+  const outputName = config.zeroConfig
+    ? handler.substring(0, handler.length - 3)
+    : handler;
+
+  // Will output an `EdgeFunction` for when `config.middleware = true`
+  // (i.e. for root-level "middleware" file) or if source code contains:
+  // `export const config = { runtime: 'experimental-edge' }`
+  let isEdgeFunction = false;
+
+  // Add a catch-all `route` for Middleware
+  if (config.middleware === true) {
+    routes = [
+      {
+        src: '/.*',
+        middlewarePath: config.zeroConfig
+          ? outputName
+          : relative(baseDir, entrypointPath),
+        continue: true,
+      },
+    ];
+
+    // Middleware is implicitly an Edge Function
+    isEdgeFunction = true;
+  }
+
+  if (!isEdgeFunction) {
    const project = new Project();
    const staticConfig = getConfig(project, entrypointPath);
-
-  let output: BuildResultV3['output'] | undefined;
-  const handler = renameTStoJS(relative(baseDir, entrypointPath));
-
    if (staticConfig?.runtime) {
      if (!ALLOWED_RUNTIMES.includes(staticConfig.runtime)) {
        throw new Error(
@@ -387,22 +413,20 @@ export const build: BuildV3 = async ({
          )} (must be one of: ${JSON.stringify(ALLOWED_RUNTIMES)})`
        );
      }
-    if (staticConfig.runtime === 'experimental-edge') {
-      const name = config.zeroConfig
-        ? handler.substring(0, handler.length - 3)
-        : handler;
+      isEdgeFunction = staticConfig.runtime === 'experimental-edge';
+    }
+  }
+
+  if (isEdgeFunction) {
    output = new EdgeFunction({
      entrypoint: handler,
      files: preparedFiles,

      // TODO: remove - these two properties should not be required
-        name,
+      name: outputName,
      deploymentTarget: 'v8-worker',
    });
-    }
-  }
-
-  if (!output) {
+  } else {
    // "nodejs" runtime is the default
    const shouldAddHelpers = !(
      config.helpers === false || process.env.NODEJS_HELPERS === '0'
@@ -418,7 +442,7 @@ export const build: BuildV3 = async ({
    });
  }

-  return { output };
+  return { routes, output };
 };

 export const prepareCache: PrepareCache = ({ repoRootPath, workPath }) => {
--- a/packages/node/test/fixtures/62-edge-middleware/api/edge.js
+++ b/packages/node/test/fixtures/62-edge-middleware/api/edge.js
@@ -0,0 +1,7 @@
+export const config = {
+  runtime: 'experimental-edge',
+};
+
+export default req => {
+  return new Response(`RANDOMNESS_PLACEHOLDER:edge`);
+};
--- a/packages/node/test/fixtures/62-edge-middleware/middleware.ts
+++ b/packages/node/test/fixtures/62-edge-middleware/middleware.ts
@@ -0,0 +1,14 @@
+export default (req: Request) => {
+  const url = new URL(req.url);
+  const headers = new Headers({
+    'x-got-middleware': 'true',
+  });
+  if (url.pathname === '/' || url.pathname.startsWith('/api/')) {
+    // For `index.html` and `/api/edge.js`, pass through
+    headers.set('x-middleware-next', '1');
+    return new Response(null, { headers });
+  } else {
+    // For everything else, serve a custom response
+    return new Response(`RANDOMNESS_PLACEHOLDER:middleware`, { headers });
+  }
+};
--- a/packages/node/test/fixtures/62-edge-middleware/vercel.json
+++ b/packages/node/test/fixtures/62-edge-middleware/vercel.json
@@ -0,0 +1,26 @@
+{
+  "builds": [
+    { "src": "api/**/*.js", "use": "@vercel/node" },
+    {
+      "src": "middleware.ts",
+      "use": "@vercel/node",
+      "config": { "middleware": true }
+    }
+  ],
+  "probes": [
+    {
+      "path": "/api/edge.js",
+      "mustContain": "RANDOMNESS_PLACEHOLDER:edge",
+      "responseHeaders": {
+        "x-got-middleware": "true"
+      }
+    },
+    {
+      "path": "/non-exist",
+      "mustContain": "RANDOMNESS_PLACEHOLDER:middleware",
+      "responseHeaders": {
+        "x-got-middleware": "true"
+      }
+    }
+  ]
+}
--- a/packages/python/package.json
+++ b/packages/python/package.json
@@ -1,6 +1,6 @@
 {
  "name": "@vercel/python",
-  "version": "3.0.1",
+  "version": "3.0.2-canary.0",
  "main": "./dist/index.js",
  "license": "MIT",
  "homepage": "https://vercel.com/docs/runtimes#official-runtimes/python",
@@ -23,7 +23,7 @@
  "devDependencies": {
    "@types/execa": "^0.9.0",
    "@types/jest": "27.4.1",
-    "@vercel/build-utils": "4.1.0",
+    "@vercel/build-utils": "4.1.1-canary.0",
    "@vercel/ncc": "0.24.0",
    "execa": "^1.0.0",
    "typescript": "4.3.4"
--- a/packages/redwood/package.json
+++ b/packages/redwood/package.json
@@ -1,6 +1,6 @@
 {
  "name": "@vercel/redwood",
-  "version": "1.0.1",
+  "version": "1.0.2-canary.0",
  "main": "./dist/index.js",
  "license": "MIT",
  "homepage": "https://vercel.com/docs",
@@ -28,6 +28,6 @@
    "@types/aws-lambda": "8.10.19",
    "@types/node": "*",
    "@types/semver": "6.0.0",
-    "@vercel/build-utils": "4.1.0"
+    "@vercel/build-utils": "4.1.1-canary.0"
  }
 }
--- a/packages/remix/package.json
+++ b/packages/remix/package.json
@@ -1,6 +1,6 @@
 {
  "name": "@vercel/remix",
-  "version": "1.0.1",
+  "version": "1.0.2-canary.0",
  "license": "MIT",
  "main": "./dist/index.js",
  "homepage": "https://vercel.com/docs",
@@ -27,7 +27,7 @@
  "devDependencies": {
    "@types/jest": "27.5.1",
    "@types/node": "*",
-    "@vercel/build-utils": "4.1.0",
+    "@vercel/build-utils": "4.1.1-canary.0",
    "typescript": "4.6.4"
  }
 }
--- a/packages/ruby/package.json
+++ b/packages/ruby/package.json
@@ -1,7 +1,7 @@
 {
  "name": "@vercel/ruby",
  "author": "Nathan Cahill <nathan@nathancahill.com>",
-  "version": "1.3.9",
+  "version": "1.3.10-canary.0",
  "license": "MIT",
  "main": "./dist/index",
  "homepage": "https://vercel.com/docs/runtimes#official-runtimes/ruby",
@@ -23,7 +23,7 @@
  "devDependencies": {
    "@types/fs-extra": "8.0.0",
    "@types/semver": "6.0.0",
-    "@vercel/build-utils": "4.1.0",
+    "@vercel/build-utils": "4.1.1-canary.0",
    "@vercel/ncc": "0.24.0",
    "execa": "2.0.4",
    "fs-extra": "^7.0.1",
--- a/packages/static-build/package.json
+++ b/packages/static-build/package.json
@@ -1,6 +1,6 @@
 {
  "name": "@vercel/static-build",
-  "version": "1.0.1",
+  "version": "1.0.2-canary.0",
  "license": "MIT",
  "main": "./dist/index",
  "homepage": "https://vercel.com/docs/build-step",
@@ -37,7 +37,7 @@
    "@types/ms": "0.7.31",
    "@types/node-fetch": "2.5.4",
    "@types/promise-timeout": "1.3.0",
-    "@vercel/build-utils": "4.1.0",
+    "@vercel/build-utils": "4.1.1-canary.0",
    "@vercel/frameworks": "1.0.1",
    "@vercel/ncc": "0.24.0",
    "@vercel/routing-utils": "1.13.4",
Author	SHA1	Message	Date
JJ Kasper	4bf6295d7a	Publish Canary - @vercel/build-utils@4.1.1-canary.0 - vercel@25.1.1-canary.0 - @vercel/client@12.0.2-canary.0 - @vercel/go@2.0.2-canary.0 - @vercel/next@3.0.2-canary.0 - @vercel/node@2.1.1-canary.0 - @vercel/python@3.0.2-canary.0 - @vercel/redwood@1.0.2-canary.0 - @vercel/remix@1.0.2-canary.0 - @vercel/ruby@1.3.10-canary.0 - @vercel/static-build@1.0.2-canary.0	2022-06-10 09:37:52 -05:00
JJ Kasper	a4001ce10b	[next] Add handling for resolving _next/data URLs (#7935 ) * Add handling for resolving _next/data URLs * update check * update routes * remove extra routes * Update resolving	2022-06-10 08:50:59 -05:00
Nathan Rajlich	2df3432d88	[node] Add zero-config support for root-level `middleware.js`/`middleware.ts` file (#7928 ) Adds support for `config.middleware` property in `@vercel/node` to output an Edge Middleware (by including a catch-all route in the output). Also updates the zero-config detection logic to schedule a build of root-level `middleware.js`/`middleware.ts` files with `@vercel/node` with this middleware option enabled.	2022-06-09 23:04:39 +00:00
chloetedder	bcfc19de12	[build-utils] Add getProjectPaths that will evaluate if there is a monorepo (#7826 ) <img width="1174" alt="Screen Shot 2022-05-19 at 3 53 55 PM" src="https://user-images.githubusercontent.com/35947020/169402845-4eb70a24-9954-44ac-8726-a6b56161d58c.png"> If there is no workspace detected, we still want to check if there are potential projects in the monorepo. An example of this case would be: <img width="202" alt="Screen Shot 2022-05-19 at 10 29 12 AM" src="https://user-images.githubusercontent.com/35947020/169336400-e69845e3-616e-4857-80fe-c2614a65352a.png"> The directories `backend/app-three`, `frontend/app-one`, `frontend/app-two` all have definitions within their `package.json` files that define a framework assosiated with the project. This is what distinguishes them from the `package.json` files within `backend` and `frontend` `getProjectPaths` loops through a depth of 3 (this can be changed but in most cases of this it won't be more than 3). For each directory it recursively calls itself until it finds a `package.json` file. It then checks if the directory has a framework defined and if so it adds the path to the final return value of all projects. If any `skipPaths` are sent into the function, no projects will be looked for within those path(s). This would include the case for a hybrid monorepo where a workspace has already been detected ### Related Issues > Fixes #1 > Related to #2 ### 📋 Checklist <!-- Please keep your PR as a Draft until the checklist is complete --> #### Tests - [ ] The code changed/added as part of this PR has been covered with tests - [ ] All tests pass locally with `yarn test-unit` #### Code Review - [ ] This PR has a concise title and thorough description useful to a reviewer - [ ] Issue from task tracker has a link to this PR	2022-06-09 15:15:25 +00:00
Matthew Stanciu	04381c669b	[cli] Pull correct env variables in `vc build` command (#7933 ) `vc build` runs `vc pull` if no project settings are found locally. By default, `vc pull` pulls development environment variables, but we want either preview or production environment variables in the context of `vc build`. This PR adds a flag to the internal `vc pull` call to pull the correct environment variables. ### 📋 Checklist <!-- Please keep your PR as a Draft until the checklist is complete --> #### Tests - [x] The code changed/added as part of this PR has been covered with tests - [x] All tests pass locally with `yarn test-unit` #### Code Review - [ ] This PR has a concise title and thorough description useful to a reviewer - [ ] Issue from task tracker has a link to this PR	2022-06-09 06:15:30 +00:00
				`@@ -0,0 +1 @@`
				`export default req => new Response('middleware');`