mirror of
https://github.com/foomo/next-proxy-middleware.git
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feat: initial project setup
This commit is contained in:
Wlad Meixner
commit
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82
README.md
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82
README.md
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@ -0,0 +1,82 @@
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# @foomo/next-proxy-middleware
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||||
A Next.js middleware for proxying requests to external services with advanced configuration options.
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## Installation
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||||
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||||
```bash
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npm install @foomo/next-proxy-middleware
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```
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## Usage
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Import the middleware and configuration type in your Next.js middleware file:
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||||
```typescript
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||||
import {
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||||
createProxyMiddleware,
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||||
DevProxyConfig,
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||||
} from "@foomo/next-proxy-middleware";
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```
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## Configuration
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||||
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The `DevProxyConfig` type defines the following options:
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||||
```typescript
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export type DevProxyConfig = {
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debug?: boolean; // Enable debug logging
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disable?: boolean; // Disable the proxy entirely
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||||
remoteUrl: string | ((request: NextRequest) => string); // Remote URL or function to generate it
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allowResponseCompression?: boolean; // Allow response compression (default: false)
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overrideHostHeader?: boolean; // Override host header (default: true)
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overrideCookieDomain?: false | string; // Domain to use for cookies or false to disable
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basicAuth?: {
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authHeader: string; // Authorization header value
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};
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cfTokenAuth?: {
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clientId: string;
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clientSecret: string;
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};
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||||
};
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```
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## Example
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||||
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||||
Here's an example of how to use the middleware in your `middleware.ts` file:
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||||
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||||
```typescript
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||||
import {
|
||||
createProxyMiddleware,
|
||||
DevProxyConfig,
|
||||
} from "@foomo/next-proxy-middleware";
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||||
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||||
const proxyConfig: DevProxyConfig = {
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||||
remoteUrl: "https://api.example.com",
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||||
basicAuth: {
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||||
authHeader: "Basic abc123==",
|
||||
},
|
||||
overrideCookieDomain: "example.com",
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||||
};
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||||
export function middleware(request: NextRequest) {
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||||
if (request.nextUrl.pathname.match("^/(api|webhooks)/")) {
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||||
return proxyMiddleware(request);
|
||||
}
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||||
return request;
|
||||
}
|
||||
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||||
export const config = {
|
||||
matcher: ["/api/:path*"],
|
||||
};
|
||||
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||||
const proxyMiddleware = createProxyMiddleware(proxyConfig);
|
||||
```
|
||||
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||||
## Contributing
|
||||
|
||||
Contributions are welcome! Please fork the repository and submit a pull request.
|
||||
|
||||
## License
|
||||
|
||||
MIT License
|
||||
136
bun.lock
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136
bun.lock
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@ -0,0 +1,136 @@
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{
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||||
"lockfileVersion": 1,
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||||
"workspaces": {
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||||
"": {
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||||
"name": "@foomo/nextproxy",
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||||
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||||
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||||
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||||
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||||
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||||
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|
||||
"@types/node": ["@types/node@22.12.0", "", { "dependencies": { "undici-types": "~6.20.0" } }, "sha512-Fll2FZ1riMjNmlmJOdAyY5pUbkftXslB5DgEzlIuNaiWhXd00FhWxVC/r4yV/4wBb9JfImTu+jiSvXTkJ7F/gA=="],
|
||||
|
||||
"@types/ws": ["@types/ws@8.5.14", "", { "dependencies": { "@types/node": "*" } }, "sha512-bd/YFLW+URhBzMXurx7lWByOu+xzU9+kb3RboOteXYDfW+tr+JZa99OyNmPINEGB/ahzKrEuc8rcv4gnpJmxTw=="],
|
||||
|
||||
"bun-types": ["bun-types@1.2.1", "", { "dependencies": { "@types/node": "*", "@types/ws": "~8.5.10" } }, "sha512-p7bmXUWmrPWxhcbFVk7oUXM5jAGt94URaoa3qf4mz43MEhNAo/ot1urzBqctgvuq7y9YxkuN51u+/qm4BiIsHw=="],
|
||||
|
||||
"busboy": ["busboy@1.6.0", "", { "dependencies": { "streamsearch": "^1.1.0" } }, "sha512-8SFQbg/0hQ9xy3UNTB0YEnsNBbWfhf7RtnzpL7TkBiTBRfrQ9Fxcnz7VJsleJpyp6rVLvXiuORqjlHi5q+PYuA=="],
|
||||
|
||||
"caniuse-lite": ["caniuse-lite@1.0.30001697", "", {}, "sha512-GwNPlWJin8E+d7Gxq96jxM6w0w+VFeyyXRsjU58emtkYqnbwHqXm5uT2uCmO0RQE9htWknOP4xtBlLmM/gWxvQ=="],
|
||||
|
||||
"client-only": ["client-only@0.0.1", "", {}, "sha512-IV3Ou0jSMzZrd3pZ48nLkT9DA7Ag1pnPzaiQhpW7c3RbcqqzvzzVu+L8gfqMp/8IM2MQtSiqaCxrrcfu8I8rMA=="],
|
||||
|
||||
"color": ["color@4.2.3", "", { "dependencies": { "color-convert": "^2.0.1", "color-string": "^1.9.0" } }, "sha512-1rXeuUUiGGrykh+CeBdu5Ie7OJwinCgQY0bc7GCRxy5xVHy+moaqkpL/jqQq0MtQOeYcrqEz4abc5f0KtU7W4A=="],
|
||||
|
||||
"color-convert": ["color-convert@2.0.1", "", { "dependencies": { "color-name": "~1.1.4" } }, "sha512-RRECPsj7iu/xb5oKYcsFHSppFNnsj/52OVTRKb4zP5onXwVF3zVmmToNcOfGC+CRDpfK/U584fMg38ZHCaElKQ=="],
|
||||
|
||||
"color-name": ["color-name@1.1.4", "", {}, "sha512-dOy+3AuW3a2wNbZHIuMZpTcgjGuLU/uBL/ubcZF9OXbDo8ff4O8yVp5Bf0efS8uEoYo5q4Fx7dY9OgQGXgAsQA=="],
|
||||
|
||||
"color-string": ["color-string@1.9.1", "", { "dependencies": { "color-name": "^1.0.0", "simple-swizzle": "^0.2.2" } }, "sha512-shrVawQFojnZv6xM40anx4CkoDP+fZsw/ZerEMsW/pyzsRbElpsL/DBVW7q3ExxwusdNXI3lXpuhEZkzs8p5Eg=="],
|
||||
|
||||
"detect-libc": ["detect-libc@2.0.3", "", {}, "sha512-bwy0MGW55bG41VqxxypOsdSdGqLwXPI/focwgTYCFMbdUiBAxLg9CFzG08sz2aqzknwiX7Hkl0bQENjg8iLByw=="],
|
||||
|
||||
"is-arrayish": ["is-arrayish@0.3.2", "", {}, "sha512-eVRqCvVlZbuw3GrM63ovNSNAeA1K16kaR/LRY/92w0zxQ5/1YzwblUX652i4Xs9RwAGjW9d9y6X88t8OaAJfWQ=="],
|
||||
|
||||
"nanoid": ["nanoid@3.3.8", "", { "bin": { "nanoid": "bin/nanoid.cjs" } }, "sha512-WNLf5Sd8oZxOm+TzppcYk8gVOgP+l58xNy58D0nbUnOxOWRWvlcCV4kUF7ltmI6PsrLl/BgKEyS4mqsGChFN0w=="],
|
||||
|
||||
"next": ["next@15.1.6", "", { "dependencies": { "@next/env": "15.1.6", "@swc/counter": "0.1.3", "@swc/helpers": "0.5.15", "busboy": "1.6.0", "caniuse-lite": "^1.0.30001579", "postcss": "8.4.31", "styled-jsx": "5.1.6" }, "optionalDependencies": { "@next/swc-darwin-arm64": "15.1.6", "@next/swc-darwin-x64": "15.1.6", "@next/swc-linux-arm64-gnu": "15.1.6", "@next/swc-linux-arm64-musl": "15.1.6", "@next/swc-linux-x64-gnu": "15.1.6", "@next/swc-linux-x64-musl": "15.1.6", "@next/swc-win32-arm64-msvc": "15.1.6", "@next/swc-win32-x64-msvc": "15.1.6", "sharp": "^0.33.5" }, "peerDependencies": { "@opentelemetry/api": "^1.1.0", "@playwright/test": "^1.41.2", "babel-plugin-react-compiler": "*", "react": "^18.2.0 || 19.0.0-rc-de68d2f4-20241204 || ^19.0.0", "react-dom": "^18.2.0 || 19.0.0-rc-de68d2f4-20241204 || ^19.0.0", "sass": "^1.3.0" }, "optionalPeers": ["@opentelemetry/api", "@playwright/test", "babel-plugin-react-compiler", "sass"], "bin": { "next": "dist/bin/next" } }, "sha512-Hch4wzbaX0vKQtalpXvUiw5sYivBy4cm5rzUKrBnUB/y436LGrvOUqYvlSeNVCWFO/770gDlltR9gqZH62ct4Q=="],
|
||||
|
||||
"picocolors": ["picocolors@1.1.1", "", {}, "sha512-xceH2snhtb5M9liqDsmEw56le376mTZkEX/jEb/RxNFyegNul7eNslCXP9FDj/Lcu0X8KEyMceP2ntpaHrDEVA=="],
|
||||
|
||||
"postcss": ["postcss@8.4.31", "", { "dependencies": { "nanoid": "^3.3.6", "picocolors": "^1.0.0", "source-map-js": "^1.0.2" } }, "sha512-PS08Iboia9mts/2ygV3eLpY5ghnUcfLV/EXTOW1E2qYxJKGGBUtNjN76FYHnMs36RmARn41bC0AZmn+rR0OVpQ=="],
|
||||
|
||||
"react": ["react@19.0.0", "", {}, "sha512-V8AVnmPIICiWpGfm6GLzCR/W5FXLchHop40W4nXBmdlEceh16rCN8O8LNWm5bh5XUX91fh7KpA+W0TgMKmgTpQ=="],
|
||||
|
||||
"react-dom": ["react-dom@19.0.0", "", { "dependencies": { "scheduler": "^0.25.0" }, "peerDependencies": { "react": "^19.0.0" } }, "sha512-4GV5sHFG0e/0AD4X+ySy6UJd3jVl1iNsNHdpad0qhABJ11twS3TTBnseqsKurKcsNqCEFeGL3uLpVChpIO3QfQ=="],
|
||||
|
||||
"scheduler": ["scheduler@0.25.0", "", {}, "sha512-xFVuu11jh+xcO7JOAGJNOXld8/TcEHK/4CituBUeUb5hqxJLj9YuemAEuvm9gQ/+pgXYfbQuqAkiYu+u7YEsNA=="],
|
||||
|
||||
"semver": ["semver@7.7.1", "", { "bin": { "semver": "bin/semver.js" } }, "sha512-hlq8tAfn0m/61p4BVRcPzIGr6LKiMwo4VM6dGi6pt4qcRkmNzTcWq6eCEjEh+qXjkMDvPlOFFSGwQjoEa6gyMA=="],
|
||||
|
||||
"sharp": ["sharp@0.33.5", "", { "dependencies": { "color": "^4.2.3", "detect-libc": "^2.0.3", "semver": "^7.6.3" }, "optionalDependencies": { "@img/sharp-darwin-arm64": "0.33.5", "@img/sharp-darwin-x64": "0.33.5", "@img/sharp-libvips-darwin-arm64": "1.0.4", "@img/sharp-libvips-darwin-x64": "1.0.4", "@img/sharp-libvips-linux-arm": "1.0.5", "@img/sharp-libvips-linux-arm64": "1.0.4", "@img/sharp-libvips-linux-s390x": "1.0.4", "@img/sharp-libvips-linux-x64": "1.0.4", "@img/sharp-libvips-linuxmusl-arm64": "1.0.4", "@img/sharp-libvips-linuxmusl-x64": "1.0.4", "@img/sharp-linux-arm": "0.33.5", "@img/sharp-linux-arm64": "0.33.5", "@img/sharp-linux-s390x": "0.33.5", "@img/sharp-linux-x64": "0.33.5", "@img/sharp-linuxmusl-arm64": "0.33.5", "@img/sharp-linuxmusl-x64": "0.33.5", "@img/sharp-wasm32": "0.33.5", "@img/sharp-win32-ia32": "0.33.5", "@img/sharp-win32-x64": "0.33.5" } }, "sha512-haPVm1EkS9pgvHrQ/F3Xy+hgcuMV0Wm9vfIBSiwZ05k+xgb0PkBQpGsAA/oWdDobNaZTH5ppvHtzCFbnSEwHVw=="],
|
||||
|
||||
"simple-swizzle": ["simple-swizzle@0.2.2", "", { "dependencies": { "is-arrayish": "^0.3.1" } }, "sha512-JA//kQgZtbuY83m+xT+tXJkmJncGMTFT+C+g2h2R9uxkYIrE2yy9sgmcLhCnw57/WSD+Eh3J97FPEDFnbXnDUg=="],
|
||||
|
||||
"source-map-js": ["source-map-js@1.2.1", "", {}, "sha512-UXWMKhLOwVKb728IUtQPXxfYU+usdybtUrK/8uGE8CQMvrhOpwvzDBwj0QhSL7MQc7vIsISBG8VQ8+IDQxpfQA=="],
|
||||
|
||||
"streamsearch": ["streamsearch@1.1.0", "", {}, "sha512-Mcc5wHehp9aXz1ax6bZUyY5afg9u2rv5cqQI3mRrYkGC8rW2hM02jWuwjtL++LS5qinSyhj2QfLyNsuc+VsExg=="],
|
||||
|
||||
"styled-jsx": ["styled-jsx@5.1.6", "", { "dependencies": { "client-only": "0.0.1" }, "peerDependencies": { "react": ">= 16.8.0 || 17.x.x || ^18.0.0-0 || ^19.0.0-0" } }, "sha512-qSVyDTeMotdvQYoHWLNGwRFJHC+i+ZvdBRYosOFgC+Wg1vx4frN2/RG/NA7SYqqvKNLf39P2LSRA2pu6n0XYZA=="],
|
||||
|
||||
"tslib": ["tslib@2.8.1", "", {}, "sha512-oJFu94HQb+KVduSUQL7wnpmqnfmLsOA/nAh6b6EH0wCEoK0/mPeXU6c3wKDV83MkOuHPRHtSXKKU99IBazS/2w=="],
|
||||
|
||||
"typescript": ["typescript@5.7.3", "", { "bin": { "tsc": "bin/tsc", "tsserver": "bin/tsserver" } }, "sha512-84MVSjMEHP+FQRPy3pX9sTVV/INIex71s9TL2Gm5FG/WG1SqXeKyZ0k7/blY/4FdOzI12CBy1vGc4og/eus0fw=="],
|
||||
|
||||
"undici-types": ["undici-types@6.20.0", "", {}, "sha512-Ny6QZ2Nju20vw1SRHe3d9jVu6gJ+4e3+MMpqu7pqE5HT6WsTSlce++GQmK5UXS8mzV8DSYHrQH+Xrf2jVcuKNg=="],
|
||||
}
|
||||
}
|
||||
24
package.json
Normal file
24
package.json
Normal file
@ -0,0 +1,24 @@
|
||||
{
|
||||
"name": "@foomo/next-proxy-middleware",
|
||||
"module": "src/index.ts",
|
||||
"version": "1.0.0",
|
||||
"type": "module",
|
||||
"scripts": {
|
||||
"build": "tsc",
|
||||
"publish": "bun publish --access public"
|
||||
},
|
||||
"devDependencies": {
|
||||
"@types/bun": "latest"
|
||||
},
|
||||
"peerDependencies": {
|
||||
"typescript": "^5.0.0",
|
||||
"next": "15"
|
||||
},
|
||||
"types": "dist/index.d.ts",
|
||||
"exports": {
|
||||
".": {
|
||||
"import": "./src/index.ts",
|
||||
"require": "./dist/index.js"
|
||||
}
|
||||
}
|
||||
}
|
||||
133
src/index.ts
Normal file
133
src/index.ts
Normal file
@ -0,0 +1,133 @@
|
||||
import { headers } from 'next/headers';
|
||||
import type { NextRequest } from 'next/server';
|
||||
import { NextResponse } from 'next/server';
|
||||
|
||||
export type DevProxyConfig = {
|
||||
debug?: boolean;
|
||||
disable?: boolean;
|
||||
// Remote server to be used
|
||||
remoteUrl: string | ((request: NextRequest) => string);
|
||||
|
||||
// if set to true accept-encoding header will be forwarded
|
||||
// this could cause encoding issues
|
||||
allowResponseCompression?: boolean;
|
||||
|
||||
overrideHostHeader?: boolean;
|
||||
overrideCookieDomain?: false | string;
|
||||
|
||||
// Basic Auth
|
||||
basicAuth?: {
|
||||
// will be used as the "Authorization" header
|
||||
authHeader: string;
|
||||
};
|
||||
// Cloudflare Access Token Authorization
|
||||
cfTokenAuth?: {
|
||||
clientId: string;
|
||||
clientSecret: string;
|
||||
};
|
||||
};
|
||||
|
||||
/**
|
||||
* Place this snippet inside your `middleware.ts` file:
|
||||
*
|
||||
* export function middleware(request: NextRequest) {
|
||||
* if (request.nextUrl.pathname.match('^/(services|webhooks)/')) {
|
||||
* return proxyMiddleware(request);
|
||||
* }
|
||||
* return request
|
||||
* }
|
||||
*
|
||||
* export const config = {
|
||||
* matcher: ['/services/:path*'],
|
||||
* };
|
||||
*
|
||||
* @param request
|
||||
*/
|
||||
export const createProxyMiddleware = (config: DevProxyConfig) => {
|
||||
if (config.debug) {
|
||||
console.log('[PROXY]', 'starting proxy with config', config);
|
||||
}
|
||||
|
||||
if (config.remoteUrl === undefined) {
|
||||
throw new Error('remoteUrl is required');
|
||||
}
|
||||
|
||||
return async (request: NextRequest) => {
|
||||
if (config.disable) {
|
||||
return request;
|
||||
}
|
||||
|
||||
const remoteUrl = new URL(
|
||||
typeof config.remoteUrl === 'function'
|
||||
? config.remoteUrl(request)
|
||||
: config.remoteUrl,
|
||||
);
|
||||
remoteUrl.pathname = request.nextUrl.pathname;
|
||||
remoteUrl.search = request.nextUrl.search;
|
||||
|
||||
const remoteHeaders = new Headers(request.headers);
|
||||
remoteHeaders.set('host', remoteUrl.host);
|
||||
|
||||
if (config.basicAuth) {
|
||||
remoteHeaders.set('Authorization', config.basicAuth.authHeader);
|
||||
}
|
||||
|
||||
// disable compression for proxy
|
||||
remoteHeaders.delete('accept-encoding');
|
||||
|
||||
console.log('[PROXY]', `${request.nextUrl.href} => ${remoteUrl.href}`);
|
||||
// check if we have cloudflare headers
|
||||
if (config.cfTokenAuth) {
|
||||
remoteHeaders.set('CF-Access-Client-Id', config.cfTokenAuth.clientId);
|
||||
remoteHeaders.set(
|
||||
'CF-Access-Client-Secret',
|
||||
config.cfTokenAuth.clientSecret,
|
||||
);
|
||||
}
|
||||
|
||||
// Fetch the response from the backend
|
||||
const backendResponse = await fetch(remoteUrl.href, {
|
||||
method: request.method,
|
||||
headers: remoteHeaders,
|
||||
body: request.body,
|
||||
});
|
||||
|
||||
if (config.debug) {
|
||||
console.log('[PROXY]', 'received response from remote', {
|
||||
headers: Object.fromEntries(backendResponse.headers as any),
|
||||
});
|
||||
}
|
||||
|
||||
const responseHeaders = new Headers(backendResponse.headers);
|
||||
if (config.overrideCookieDomain) {
|
||||
const setCookieHeaders = backendResponse.headers.get('set-cookie');
|
||||
if (setCookieHeaders) {
|
||||
try {
|
||||
if (config.debug) {
|
||||
console.log('[PROXY]', 'setCookieHeaders', setCookieHeaders);
|
||||
}
|
||||
// const origin = new URL(request.headers.get("host") ?? "");
|
||||
const rewrittenCookies = setCookieHeaders.split(',').map((cookie) => {
|
||||
const [cookiePair] = cookie.split(';').map((part) => part.trim());
|
||||
return `${cookiePair}; Path=/; SameSite=None; Secure; Domain=${config.overrideCookieDomain}`;
|
||||
});
|
||||
|
||||
if (config.debug) {
|
||||
console.log('[PROXY]', 'rewrittenCookies', rewrittenCookies);
|
||||
}
|
||||
remoteHeaders.set('set-cookie', rewrittenCookies.join(','));
|
||||
} catch (e) {
|
||||
console.error('Error setting cookies', e);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
const response = new NextResponse(backendResponse.body, {
|
||||
...backendResponse,
|
||||
headers: responseHeaders,
|
||||
status: backendResponse.status,
|
||||
});
|
||||
|
||||
return response;
|
||||
};
|
||||
};
|
||||
29
tsconfig.json
Normal file
29
tsconfig.json
Normal file
@ -0,0 +1,29 @@
|
||||
{
|
||||
"compilerOptions": {
|
||||
"outDir": "./dist",
|
||||
"declaration": true,
|
||||
|
||||
// Enable latest features
|
||||
"lib": ["ESNext", "DOM"],
|
||||
"target": "ESNext",
|
||||
"module": "ESNext",
|
||||
"moduleDetection": "force",
|
||||
"jsx": "react-jsx",
|
||||
"allowJs": true,
|
||||
|
||||
// Bundler mode
|
||||
"moduleResolution": "bundler",
|
||||
"verbatimModuleSyntax": true,
|
||||
"noEmit": false,
|
||||
|
||||
// Best practices
|
||||
"strict": true,
|
||||
"skipLibCheck": true,
|
||||
"noFallthroughCasesInSwitch": true,
|
||||
|
||||
// Some stricter flags (disabled by default)
|
||||
"noUnusedLocals": false,
|
||||
"noUnusedParameters": false,
|
||||
"noPropertyAccessFromIndexSignature": false
|
||||
}
|
||||
}
|
||||
Loading…
Reference in New Issue
Block a user