Add proxy API endpoint for NIP-95 upload to bypass CORS issues with nostr.build

2025-12-29 00:17:10 +01:00 · 2025-12-29 00:17:10 +01:00 · 2b57b1d445
commit 2b57b1d445
parent 07b9f513bb
5 changed files with 254 additions and 24 deletions
--- a/lib/configStorageTypes.ts
+++ b/lib/configStorageTypes.ts
@ -41,15 +41,15 @@ export const DEFAULT_RELAYS: RelayConfig[] = [
 export const DEFAULT_NIP95_APIS: Nip95Config[] = [
  {
    id: 'default',
-    url: 'https://nostrcheck.me/api/v1/media',
+    url: 'https://nostr.build/api/v2/upload',
    enabled: true,
    priority: 1,
    createdAt: Date.now(),
  },
  {
-    id: 'nostrbuild',
-    url: 'https://nostr.build/api/v2/upload',
-    enabled: true,
+    id: 'nostrcheck',
+    url: 'https://nostrcheck.me/api/v1/media',
+    enabled: false,
    priority: 2,
    createdAt: Date.now(),
  },
--- a/lib/nip95.ts
+++ b/lib/nip95.ts
@ -69,11 +69,19 @@ function parseUploadResponse(result: unknown, endpoint: string): string {

 /**
 * Try uploading to a single endpoint
+ * Uses proxy API route for endpoints that have CORS issues
 */
-async function tryUploadEndpoint(endpoint: string, formData: FormData): Promise<string> {
-  const response = await fetch(endpoint, {
+async function tryUploadEndpoint(endpoint: string, formData: FormData, useProxy: boolean = false): Promise<string> {
+  const targetUrl = useProxy ? '/api/nip95-upload' : endpoint
+
+  const response = await fetch(targetUrl, {
    method: 'POST',
    body: formData,
+    ...(useProxy && {
+      headers: {
+        'Content-Type': 'multipart/form-data',
+      },
+    }),
  })

  if (!response.ok) {
@ -120,11 +128,32 @@ export async function uploadNip95Media(file: File): Promise<MediaRef> {
  let lastError: Error | null = null
  for (const endpoint of endpoints) {
    try {
-      const url = await tryUploadEndpoint(endpoint, formData)
+      // Try direct upload first
+      const url = await tryUploadEndpoint(endpoint, formData, false)
      return { url, type: mediaType }
    } catch (e) {
      const error = e instanceof Error ? e : new Error(String(e))
      const errorMessage = error.message
+
+      // If CORS error or network error, try via proxy
+      const isCorsError = errorMessage.includes('CORS') || errorMessage.includes('Failed to fetch')
+      if (isCorsError && endpoint.includes('nostr.build')) {
+        try {
+          console.log('Trying upload via proxy due to CORS error:', endpoint)
+          const url = await tryUploadEndpoint(endpoint, formData, true)
+          return { url, type: mediaType }
+        } catch (proxyError) {
+          console.error('NIP-95 upload proxy error:', {
+            endpoint,
+            error: proxyError instanceof Error ? proxyError.message : String(proxyError),
+            fileSize: file.size,
+            fileType: file.type,
+          })
+          lastError = proxyError instanceof Error ? proxyError : new Error(String(proxyError))
+          continue
+        }
+      }
+
      console.error('NIP-95 upload endpoint error:', {
        endpoint,
        error: errorMessage,
--- a/package-lock.json
+++ b/package-lock.json
@ -8,6 +8,9 @@
      "name": "zapwall4science",
      "version": "1.0.0",
      "dependencies": {
+        "@types/formidable": "^3.4.6",
+        "form-data": "^4.0.5",
+        "formidable": "^3.5.4",
        "next": "^16.1.1",
        "nostr-tools": "2.19.4",
        "react": "^19.2.3",
@ -1284,6 +1287,15 @@
        "node": ">=12.4.0"
      }
    },
+    "node_modules/@paralleldrive/cuid2": {
+      "version": "2.3.1",
+      "resolved": "https://registry.npmjs.org/@paralleldrive/cuid2/-/cuid2-2.3.1.tgz",
+      "integrity": "sha512-XO7cAxhnTZl0Yggq6jOgjiOHhbgcO4NqFqwSmQpjK3b6TEE6Uj/jfSk6wzYyemh3+I0sHirKSetjQwn5cZktFw==",
+      "license": "MIT",
+      "dependencies": {
+        "@noble/hashes": "^1.1.5"
+      }
+    },
    "node_modules/@rtsao/scc": {
      "version": "1.1.0",
      "resolved": "https://registry.npmjs.org/@rtsao/scc/-/scc-1.1.0.tgz",
@ -1628,6 +1640,15 @@
      "dev": true,
      "license": "MIT"
    },
+    "node_modules/@types/formidable": {
+      "version": "3.4.6",
+      "resolved": "https://registry.npmjs.org/@types/formidable/-/formidable-3.4.6.tgz",
+      "integrity": "sha512-LI4Hk+KNsM5q7br4oMVoaWeb+gUqJpz1N8+Y2Q6Cz9cVH33ybahRKUWaRmMboVlkwSbOUGgwc/pEkS7yMSzoWg==",
+      "license": "MIT",
+      "dependencies": {
+        "@types/node": "*"
+      }
+    },
    "node_modules/@types/json-schema": {
      "version": "7.0.15",
      "resolved": "https://registry.npmjs.org/@types/json-schema/-/json-schema-7.0.15.tgz",
@ -1646,7 +1667,6 @@
      "version": "25.0.3",
      "resolved": "https://registry.npmjs.org/@types/node/-/node-25.0.3.tgz",
      "integrity": "sha512-W609buLVRVmeW693xKfzHeIV6nJGGz98uCPfeXI1ELMLXVeKYZ9m15fAMSaUPBHYLGFsVRcMmSCksQOrZV9BYA==",
-      "dev": true,
      "license": "MIT",
      "dependencies": {
        "undici-types": "~7.16.0"
@ -2446,6 +2466,12 @@
        "url": "https://github.com/sponsors/ljharb"
      }
    },
+    "node_modules/asap": {
+      "version": "2.0.6",
+      "resolved": "https://registry.npmjs.org/asap/-/asap-2.0.6.tgz",
+      "integrity": "sha512-BSHWgDSAiKs50o2Re8ppvp3seVHXSRM44cdSsT9FfNEUUZLOGWVCsiWaRPWM1Znn+mqZ1OfVZ3z3DWEzSp7hRA==",
+      "license": "MIT"
+    },
    "node_modules/ast-types-flow": {
      "version": "0.0.8",
      "resolved": "https://registry.npmjs.org/ast-types-flow/-/ast-types-flow-0.0.8.tgz",
@ -2463,6 +2489,12 @@
        "node": ">= 0.4"
      }
    },
+    "node_modules/asynckit": {
+      "version": "0.4.0",
+      "resolved": "https://registry.npmjs.org/asynckit/-/asynckit-0.4.0.tgz",
+      "integrity": "sha512-Oei9OH4tRh0YqU3GxhX79dM/mwVgvbZJaSNaRk+bshkj0S5cfHcgYakreBjrHwatXKbz+IoIdYLxrKim2MjW0Q==",
+      "license": "MIT"
+    },
    "node_modules/autoprefixer": {
      "version": "10.4.23",
      "resolved": "https://registry.npmjs.org/autoprefixer/-/autoprefixer-10.4.23.tgz",
@ -2634,7 +2666,6 @@
      "version": "1.0.2",
      "resolved": "https://registry.npmjs.org/call-bind-apply-helpers/-/call-bind-apply-helpers-1.0.2.tgz",
      "integrity": "sha512-Sp1ablJ0ivDkSzjcaJdxEunN5/XvksFJ2sMBFfq6x0ryhQV/2b/KwFe21cMpmHtPOSij8K99/wSfoEuTObmuMQ==",
-      "dev": true,
      "license": "MIT",
      "dependencies": {
        "es-errors": "^1.3.0",
@ -2734,6 +2765,18 @@
      "dev": true,
      "license": "MIT"
    },
+    "node_modules/combined-stream": {
+      "version": "1.0.8",
+      "resolved": "https://registry.npmjs.org/combined-stream/-/combined-stream-1.0.8.tgz",
+      "integrity": "sha512-FQN4MRfuJeHf7cBbBMJFXhKSDq+2kAArBlmRBvcvFE5BB1HZKXtSFASDhdlz9zOYwxh8lDdnvmMOe/+5cdoEdg==",
+      "license": "MIT",
+      "dependencies": {
+        "delayed-stream": "~1.0.0"
+      },
+      "engines": {
+        "node": ">= 0.8"
+      }
+    },
    "node_modules/concat-map": {
      "version": "0.0.1",
      "resolved": "https://registry.npmjs.org/concat-map/-/concat-map-0.0.1.tgz",
@ -2892,6 +2935,15 @@
        "url": "https://github.com/sponsors/ljharb"
      }
    },
+    "node_modules/delayed-stream": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/delayed-stream/-/delayed-stream-1.0.0.tgz",
+      "integrity": "sha512-ZySD7Nf91aLB0RxL4KGrKHBXl7Eds1DAmEdcoVawXnLD7SDhpNgtuII2aAkg7a7QS41jxPSZ17p4VdGnMHk3MQ==",
+      "license": "MIT",
+      "engines": {
+        "node": ">=0.4.0"
+      }
+    },
    "node_modules/detect-libc": {
      "version": "2.1.2",
      "resolved": "https://registry.npmjs.org/detect-libc/-/detect-libc-2.1.2.tgz",
@ -2902,11 +2954,20 @@
        "node": ">=8"
      }
    },
+    "node_modules/dezalgo": {
+      "version": "1.0.4",
+      "resolved": "https://registry.npmjs.org/dezalgo/-/dezalgo-1.0.4.tgz",
+      "integrity": "sha512-rXSP0bf+5n0Qonsb+SVVfNfIsimO4HEtmnIpPHY8Q1UCzKlQrDMfdobr8nJOOsRgWCyMRqeSBQzmWUMq7zvVig==",
+      "license": "ISC",
+      "dependencies": {
+        "asap": "^2.0.0",
+        "wrappy": "1"
+      }
+    },
    "node_modules/dunder-proto": {
      "version": "1.0.1",
      "resolved": "https://registry.npmjs.org/dunder-proto/-/dunder-proto-1.0.1.tgz",
      "integrity": "sha512-KIN/nDJBQRcXw0MLVhZE9iQHmG68qAVIBg9CqmUYjmQIhgij9U5MFvrqkUL5FbtyyzZuOeOt0zdeRe4UY7ct+A==",
-      "dev": true,
      "license": "MIT",
      "dependencies": {
        "call-bind-apply-helpers": "^1.0.1",
@ -3018,7 +3079,6 @@
      "version": "1.0.1",
      "resolved": "https://registry.npmjs.org/es-define-property/-/es-define-property-1.0.1.tgz",
      "integrity": "sha512-e3nRfgfUZ4rNGL232gUgX06QNyyez04KdjFrF+LTRoOXmrOgFKDg4BCdsjW8EnT69eqdYGmRpJwiPVYNrCaW3g==",
-      "dev": true,
      "license": "MIT",
      "engines": {
        "node": ">= 0.4"
@ -3028,7 +3088,6 @@
      "version": "1.3.0",
      "resolved": "https://registry.npmjs.org/es-errors/-/es-errors-1.3.0.tgz",
      "integrity": "sha512-Zf5H2Kxt2xjTvbJvP2ZWLEICxA6j+hAmMzIlypy4xcBg1vKVnx89Wy0GbS+kf5cwCVFFzdCFh2XSCFNULS6csw==",
-      "dev": true,
      "license": "MIT",
      "engines": {
        "node": ">= 0.4"
@ -3066,7 +3125,6 @@
      "version": "1.1.1",
      "resolved": "https://registry.npmjs.org/es-object-atoms/-/es-object-atoms-1.1.1.tgz",
      "integrity": "sha512-FGgH2h8zKNim9ljj7dankFPcICIK9Cp5bm+c2gQSYePhpaG5+esrLODihIorn+Pe6FGJzWhXQotPv73jTaldXA==",
-      "dev": true,
      "license": "MIT",
      "dependencies": {
        "es-errors": "^1.3.0"
@ -3079,7 +3137,6 @@
      "version": "2.1.0",
      "resolved": "https://registry.npmjs.org/es-set-tostringtag/-/es-set-tostringtag-2.1.0.tgz",
      "integrity": "sha512-j6vWzfrGVfyXxge+O0x5sh6cvxAog0a/4Rdd2K36zCMV5eJ+/+tOAngRO8cODMNWbVRdVlmGZQL2YS3yR8bIUA==",
-      "dev": true,
      "license": "MIT",
      "dependencies": {
        "es-errors": "^1.3.0",
@ -3784,6 +3841,39 @@
        "url": "https://github.com/sponsors/ljharb"
      }
    },
+    "node_modules/form-data": {
+      "version": "4.0.5",
+      "resolved": "https://registry.npmjs.org/form-data/-/form-data-4.0.5.tgz",
+      "integrity": "sha512-8RipRLol37bNs2bhoV67fiTEvdTrbMUYcFTiy3+wuuOnUog2QBHCZWXDRijWQfAkhBj2Uf5UnVaiWwA5vdd82w==",
+      "license": "MIT",
+      "dependencies": {
+        "asynckit": "^0.4.0",
+        "combined-stream": "^1.0.8",
+        "es-set-tostringtag": "^2.1.0",
+        "hasown": "^2.0.2",
+        "mime-types": "^2.1.12"
+      },
+      "engines": {
+        "node": ">= 6"
+      }
+    },
+    "node_modules/formidable": {
+      "version": "3.5.4",
+      "resolved": "https://registry.npmjs.org/formidable/-/formidable-3.5.4.tgz",
+      "integrity": "sha512-YikH+7CUTOtP44ZTnUhR7Ic2UASBPOqmaRkRKxRbywPTe5VxF7RRCck4af9wutiZ/QKM5nME9Bie2fFaPz5Gug==",
+      "license": "MIT",
+      "dependencies": {
+        "@paralleldrive/cuid2": "^2.2.2",
+        "dezalgo": "^1.0.4",
+        "once": "^1.4.0"
+      },
+      "engines": {
+        "node": ">=14.0.0"
+      },
+      "funding": {
+        "url": "https://ko-fi.com/tunnckoCore/commissions"
+      }
+    },
    "node_modules/fraction.js": {
      "version": "5.3.4",
      "resolved": "https://registry.npmjs.org/fraction.js/-/fraction.js-5.3.4.tgz",
@ -3802,7 +3892,6 @@
      "version": "1.1.2",
      "resolved": "https://registry.npmjs.org/function-bind/-/function-bind-1.1.2.tgz",
      "integrity": "sha512-7XHNxH7qX9xG5mIwxkhumTox/MIRNcOgDrxWsMt2pAr23WHp6MrRlN7FBSFpCpr+oVO0F744iUgR82nJMfG2SA==",
-      "dev": true,
      "license": "MIT",
      "funding": {
        "url": "https://github.com/sponsors/ljharb"
@ -3863,7 +3952,6 @@
      "version": "1.3.0",
      "resolved": "https://registry.npmjs.org/get-intrinsic/-/get-intrinsic-1.3.0.tgz",
      "integrity": "sha512-9fSjSaos/fRIVIp+xSJlE6lfwhES7LNtKaCBIamHsjr2na1BiABJPo0mOjjz8GJDURarmCPGqaiVg5mfjb98CQ==",
-      "dev": true,
      "license": "MIT",
      "dependencies": {
        "call-bind-apply-helpers": "^1.0.2",
@ -3888,7 +3976,6 @@
      "version": "1.0.1",
      "resolved": "https://registry.npmjs.org/get-proto/-/get-proto-1.0.1.tgz",
      "integrity": "sha512-sTSfBjoXBp89JvIKIefqw7U2CCebsc74kiY6awiGogKtoSGbgjYE/G/+l9sF3MWFPNc9IcoOC4ODfKHfxFmp0g==",
-      "dev": true,
      "license": "MIT",
      "dependencies": {
        "dunder-proto": "^1.0.1",
@ -3976,7 +4063,6 @@
      "version": "1.2.0",
      "resolved": "https://registry.npmjs.org/gopd/-/gopd-1.2.0.tgz",
      "integrity": "sha512-ZUKRh6/kUFoAiTAtTYPZJ3hw9wNxx+BIBOijnlG9PnrJsCcSjs1wyyD6vJpaYtgnzDrKYRSqf3OO6Rfa93xsRg==",
-      "dev": true,
      "license": "MIT",
      "engines": {
        "node": ">= 0.4"
@ -4048,7 +4134,6 @@
      "version": "1.1.0",
      "resolved": "https://registry.npmjs.org/has-symbols/-/has-symbols-1.1.0.tgz",
      "integrity": "sha512-1cDNdwJ2Jaohmb3sg4OmKaMBwuC48sYni5HUw2DvsC8LjGTLK9h+eb1X6RyuOHe4hT0ULCW68iomhjUoKUqlPQ==",
-      "dev": true,
      "license": "MIT",
      "engines": {
        "node": ">= 0.4"
@ -4061,7 +4146,6 @@
      "version": "1.0.2",
      "resolved": "https://registry.npmjs.org/has-tostringtag/-/has-tostringtag-1.0.2.tgz",
      "integrity": "sha512-NqADB8VjPFLM2V0VvHUewwwsw0ZWBaIdgo+ieHtK3hasLz4qeCRjYcqfB6AQrBggRKppKF8L52/VqdVsO47Dlw==",
-      "dev": true,
      "license": "MIT",
      "dependencies": {
        "has-symbols": "^1.0.3"
@ -4077,7 +4161,6 @@
      "version": "2.0.2",
      "resolved": "https://registry.npmjs.org/hasown/-/hasown-2.0.2.tgz",
      "integrity": "sha512-0hJU9SCPvmMzIBdZFqNPXWa6dqh7WdH0cII9y+CyS8rG3nL48Bclra9HmKhVVUHyPWNH5Y7xDwAB7bfgSjkUMQ==",
-      "dev": true,
      "license": "MIT",
      "dependencies": {
        "function-bind": "^1.1.2"
@ -4595,7 +4678,6 @@
      "integrity": "sha512-ekilCSN1jwRvIbgeg/57YFh8qQDNbwDb9xT/qu2DAHbFFZUicIl4ygVaAvzveMhMVr3LnpSKTNnwt8PoOfmKhQ==",
      "dev": true,
      "license": "MIT",
-      "peer": true,
      "bin": {
        "jiti": "lib/jiti-cli.mjs"
      }
@ -5046,7 +5128,6 @@
      "version": "1.1.0",
      "resolved": "https://registry.npmjs.org/math-intrinsics/-/math-intrinsics-1.1.0.tgz",
      "integrity": "sha512-/IXtbwEk5HTPyEwyKX6hGkYXxM9nbj64B+ilVJnC/R6B0pH5G4V3b0pVbL7DBj4tkhBAppbQUlf6F6Xl9LHu1g==",
-      "dev": true,
      "license": "MIT",
      "engines": {
        "node": ">= 0.4"
@ -5076,6 +5157,27 @@
        "node": ">=8.6"
      }
    },
+    "node_modules/mime-db": {
+      "version": "1.52.0",
+      "resolved": "https://registry.npmjs.org/mime-db/-/mime-db-1.52.0.tgz",
+      "integrity": "sha512-sPU4uV7dYlvtWJxwwxHD0PuihVNiE7TyAbQ5SWxDCB9mUYvOgroQOwYQQOKPJ8CIbE+1ETVlOoK1UC2nU3gYvg==",
+      "license": "MIT",
+      "engines": {
+        "node": ">= 0.6"
+      }
+    },
+    "node_modules/mime-types": {
+      "version": "2.1.35",
+      "resolved": "https://registry.npmjs.org/mime-types/-/mime-types-2.1.35.tgz",
+      "integrity": "sha512-ZDY+bPm5zTTF+YpCrAU9nK0UgICYPT0QtT1NZWFv4s++TNkcgVaT0g6+4R2uI4MjQjzysHB1zxuWL50hzaeXiw==",
+      "license": "MIT",
+      "dependencies": {
+        "mime-db": "1.52.0"
+      },
+      "engines": {
+        "node": ">= 0.6"
+      }
+    },
    "node_modules/minimatch": {
      "version": "3.1.2",
      "resolved": "https://registry.npmjs.org/minimatch/-/minimatch-3.1.2.tgz",
@ -5410,6 +5512,15 @@
        "url": "https://github.com/sponsors/ljharb"
      }
    },
+    "node_modules/once": {
+      "version": "1.4.0",
+      "resolved": "https://registry.npmjs.org/once/-/once-1.4.0.tgz",
+      "integrity": "sha512-lNaJgI+2Q5URQBkccEKHTQOPaXdUxnZZElQTZY0MFUAuaEqe1E+Nyvgdz/aIyNi6Z9MzO5dv1H8n58/GELp3+w==",
+      "license": "ISC",
+      "dependencies": {
+        "wrappy": "1"
+      }
+    },
    "node_modules/optionator": {
      "version": "0.9.4",
      "resolved": "https://registry.npmjs.org/optionator/-/optionator-0.9.4.tgz",
@ -6554,7 +6665,6 @@
      "version": "7.16.0",
      "resolved": "https://registry.npmjs.org/undici-types/-/undici-types-7.16.0.tgz",
      "integrity": "sha512-Zz+aZWSj8LE6zoxD+xrjh4VfkIG8Ya6LvYkZqtUQGJPZjYl53ypCaUwWqo7eI0x66KBGeRo+mlBEkMSeSZ38Nw==",
-      "dev": true,
      "license": "MIT"
    },
    "node_modules/unrs-resolver": {
@ -6748,6 +6858,12 @@
        "node": ">=0.10.0"
      }
    },
+    "node_modules/wrappy": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmjs.org/wrappy/-/wrappy-1.0.2.tgz",
+      "integrity": "sha512-l4Sp/DRseor9wL6EvV2+TuQn63dMkPjZ/sp9XkghTEbV9KlPS1xUsZ3u7/IQO4wxtcFB4bgpQPRcR3QCvezPcQ==",
+      "license": "ISC"
+    },
    "node_modules/yallist": {
      "version": "3.1.1",
      "resolved": "https://registry.npmjs.org/yallist/-/yallist-3.1.1.tgz",
--- a/package.json
+++ b/package.json
@ -10,6 +10,9 @@
    "type-check": "tsc --noEmit"
  },
  "dependencies": {
+    "@types/formidable": "^3.4.6",
+    "form-data": "^4.0.5",
+    "formidable": "^3.5.4",
    "next": "^16.1.1",
    "nostr-tools": "2.19.4",
    "react": "^19.2.3",
--- a/pages/api/nip95-upload.ts
+++ b/pages/api/nip95-upload.ts
@ -0,0 +1,82 @@
+import { NextApiRequest, NextApiResponse } from 'next'
+import { IncomingForm, File as FormidableFile } from 'formidable'
+import FormData from 'form-data'
+import fs from 'fs'
+
+const TARGET_ENDPOINT = 'https://nostr.build/api/v2/upload'
+const MAX_FILE_SIZE = 50 * 1024 * 1024 // 50MB
+
+export const config = {
+  api: {
+    bodyParser: false, // Disable bodyParser to handle multipart
+  },
+}
+
+export default async function handler(req: NextApiRequest, res: NextApiResponse) {
+  if (req.method !== 'POST') {
+    return res.status(405).json({ error: 'Method not allowed' })
+  }
+
+  try {
+    // Parse multipart form data
+    const form = new IncomingForm({
+      maxFileSize: MAX_FILE_SIZE,
+      keepExtensions: true,
+    })
+
+    const [fields, files] = await new Promise<[Record<string, string[]>, Record<string, FormidableFile[]>>>(
+      (resolve, reject) => {
+        form.parse(req, (err, fields, files) => {
+          if (err) reject(err)
+          else resolve([fields as Record<string, string[]>, files as Record<string, FormidableFile[]>])
+        })
+      }
+    )
+
+    // Get the file from the parsed form
+    const fileField = files.file?.[0]
+    if (!fileField) {
+      return res.status(400).json({ error: 'No file provided' })
+    }
+
+    // Create FormData for the target endpoint
+    const formData = new FormData()
+    const fileStream = fs.createReadStream(fileField.filepath)
+    formData.append('file', fileStream, {
+      filename: fileField.originalFilename || fileField.newFilename || 'upload',
+      contentType: fileField.mimetype || 'application/octet-stream',
+    })
+
+    // Forward to target endpoint
+    const response = await fetch(TARGET_ENDPOINT, {
+      method: 'POST',
+      body: formData as unknown as BodyInit,
+      headers: {
+        ...formData.getHeaders(),
+      },
+    })
+
+    // Clean up temporary file
+    try {
+      fs.unlinkSync(fileField.filepath)
+    } catch (unlinkError) {
+      console.error('Error deleting temp file:', unlinkError)
+    }
+
+    if (!response.ok) {
+      const errorText = await response.text()
+      return res.status(response.status).json({
+        error: errorText || `Upload failed: ${response.status} ${response.statusText}`,
+      })
+    }
+
+    const result = await response.json()
+    return res.status(200).json(result)
+  } catch (error) {
+    console.error('NIP-95 proxy error:', error)
+    return res.status(500).json({
+      error: error instanceof Error ? error.message : 'Internal server error',
+    })
+  }
+}
+