feat: allow multiple targets

Author: wobsoriano

.npmrc

@@ -1 +1,2 @@
 shamefully-hoist=true
+ignore-workspace-root-check=true

package.json

@@ -50,6 +50,7 @@
     "defu": "^6.0.0",
     "h3": "^0.7.9",
     "http-proxy-middleware": "^3.0.0-beta.0",
+    "ohash": "^0.1.0",
     "pathe": "^0.3.0"
   },
   "devDependencies": {

playground/nuxt.config.ts

@@ -4,15 +4,29 @@ import { defineNuxtConfig } from 'nuxt'
 export default defineNuxtConfig({
   modules: ['nuxt-proxy'],
   proxy: {
-    target: 'https://jsonplaceholder.typicode.com',
-    changeOrigin: true,
-    pathRewrite: {
-      '^/api/todos': '/todos',
-      '^/api/users': '/users',
-    },
-    pathFilter: [
-      '/api/todos',
-      '/api/users',
+    options: [
+      {
+        target: 'https://jsonplaceholder.typicode.com',
+        changeOrigin: true,
+        pathRewrite: {
+          '^/api/todos': '/todos',
+          '^/api/users': '/users',
+        },
+        pathFilter: [
+          '/api/todos',
+          '/api/users',
+        ],
+      },
+      {
+        target: 'https://api.spacexdata.com/v5',
+        changeOrigin: true,
+        pathRewrite: {
+          '^/api/launches': '/launches/latest',
+        },
+        pathFilter: [
+          '/api/launches',
+        ],
+      },
     ],
   },
 })

pnpm-lock.yaml

@@ -4,34 +4,54 @@ import type { Options } from 'http-proxy-middleware'
 import { join } from 'pathe'
 import { defu } from 'defu'
 import dedent from 'dedent'
+import { hash, objectHash } from 'ohash'
 
-export default defineNuxtModule<Options>({
+function createProxyMiddleware(buildDir: string, filename: string, options: Options) {
+  addTemplate({
+    filename,
+    write: true,
+    getContents: () => dedent`
+      import { createProxyMiddleware } from 'nuxt-proxy/middleware'
+
+      export default createProxyMiddleware(${JSON.stringify(options)})
+    `,
+  })
+
+  addServerHandler({
+    handler: join(buildDir, filename),
+    middleware: true,
+  })
+}
+
+export interface ModuleOptions {
+  options: Options[] | Options
+}
+
+export default defineNuxtModule<ModuleOptions>({
   meta: {
     name: 'nuxt-proxy',
     configKey: 'proxy',
   },
-  defaults: {},
+  defaults: {
+    options: [],
+  },
   setup(options, nuxt) {
     const runtimeDir = fileURLToPath(new URL('./runtime', import.meta.url))
     nuxt.options.build.transpile.push(runtimeDir, '#build/proxy-handler')
 
     // Final resolved configuration
-    const finalConfig = nuxt.options.runtimeConfig.proxy = defu(nuxt.options.runtimeConfig.proxy, options)
-
-    addTemplate({
-      filename: 'proxy-handler.ts',
-      write: true,
-      getContents: () => dedent`
-        import { createProxyMiddleware } from 'nuxt-proxy/middleware'
-        
-        export default createProxyMiddleware(${JSON.stringify(finalConfig)})
-      `,
-    })
-
-    addServerHandler({
-      handler: join(nuxt.options.buildDir, 'proxy-handler.ts'),
-      middleware: true,
-    })
+    const finalConfig = (nuxt.options.runtimeConfig.proxy = defu(nuxt.options.runtimeConfig.proxy, options)) as ModuleOptions
+
+    if (Array.isArray(finalConfig.options)) {
+      finalConfig.options.forEach((options) => {
+        const filename = `proxy/${hash(objectHash(options))}.ts`
+        createProxyMiddleware(nuxt.options.buildDir, filename, options)
+      })
+    }
+    else {
+      const filename = 'proxy_handler.ts'
+      createProxyMiddleware(nuxt.options.buildDir, filename, finalConfig.options)
+    }
   },
 })