fix

Dockerfile

@@ -4,11 +4,17 @@ FROM node:18-slim
 # Set working directory
 WORKDIR /app
 
-# Install system dependencies for TensorFlow.js
+# Install system dependencies for TensorFlow.js and Canvas
 RUN apt-get update && apt-get install -y \
     python3 \
     python3-pip \
     build-essential \
+    libcairo2-dev \
+    libpango1.0-dev \
+    libjpeg-dev \
+    libgif-dev \
+    librsvg2-dev \
+    pkg-config \
     && rm -rf /var/lib/apt/lists/*
 
 # Copy package files

package-lock.json

@@ -0,0 +1,861 @@
+{
+  "name": "upscaler-api",
+  "version": "1.0.0",
+  "lockfileVersion": 3,
+  "requires": true,
+  "packages": {
+    "": {
+      "name": "upscaler-api",
+      "version": "1.0.0",
+      "license": "MIT",
+      "dependencies": {
+        "cors": "^2.8.5",
+        "express": "^4.18.2",
+        "multer": "^1.4.5-lts.1"
+      },
+      "engines": {
+        "node": ">=18.0.0"
+      }
+    },
+    "node_modules/accepts": {
+      "version": "1.3.8",
+      "license": "MIT",
+      "dependencies": {
+        "mime-types": "~2.1.34",
+        "negotiator": "0.6.3"
+      },
+      "engines": {
+        "node": ">= 0.6"
+      }
+    },
+    "node_modules/append-field": {
+      "version": "1.0.0",
+      "license": "MIT"
+    },
+    "node_modules/array-flatten": {
+      "version": "1.1.1",
+      "license": "MIT"
+    },
+    "node_modules/body-parser": {
+      "version": "1.20.3",
+      "license": "MIT",
+      "dependencies": {
+        "bytes": "3.1.2",
+        "content-type": "~1.0.5",
+        "debug": "2.6.9",
+        "depd": "2.0.0",
+        "destroy": "1.2.0",
+        "http-errors": "2.0.0",
+        "iconv-lite": "0.4.24",
+        "on-finished": "2.4.1",
+        "qs": "6.13.0",
+        "raw-body": "2.5.2",
+        "type-is": "~1.6.18",
+        "unpipe": "1.0.0"
+      },
+      "engines": {
+        "node": ">= 0.8",
+        "npm": "1.2.8000 || >= 1.4.16"
+      }
+    },
+    "node_modules/buffer-from": {
+      "version": "1.1.2",
+      "resolved": "https://registry.npmjs.org/buffer-from/-/buffer-from-1.1.2.tgz",
+      "integrity": "sha512-E+XQCRwSbaaiChtv6k6Dwgc+bx+Bs6vuKJHHl5kox/BaKbhiXzqQOwK4cO22yElGp2OCmjwVhT3HmxgyPGnJfQ==",
+      "license": "MIT"
+    },
+    "node_modules/busboy": {
+      "version": "1.6.0",
+      "dependencies": {
+        "streamsearch": "^1.1.0"
+      },
+      "engines": {
+        "node": ">=10.16.0"
+      }
+    },
+    "node_modules/bytes": {
+      "version": "3.1.2",
+      "license": "MIT",
+      "engines": {
+        "node": ">= 0.8"
+      }
+    },
+    "node_modules/call-bind-apply-helpers": {
+      "version": "1.0.2",
+      "license": "MIT",
+      "dependencies": {
+        "es-errors": "^1.3.0",
+        "function-bind": "^1.1.2"
+      },
+      "engines": {
+        "node": ">= 0.4"
+      }
+    },
+    "node_modules/call-bound": {
+      "version": "1.0.4",
+      "license": "MIT",
+      "dependencies": {
+        "call-bind-apply-helpers": "^1.0.2",
+        "get-intrinsic": "^1.3.0"
+      },
+      "engines": {
+        "node": ">= 0.4"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/ljharb"
+      }
+    },
+    "node_modules/concat-stream": {
+      "version": "1.6.2",
+      "resolved": "https://registry.npmjs.org/concat-stream/-/concat-stream-1.6.2.tgz",
+      "integrity": "sha512-27HBghJxjiZtIk3Ycvn/4kbJk/1uZuJFfuPEns6LaEvpvG1f0hTea8lilrouyo9mVc2GWdcEZ8OLoGmSADlrCw==",
+      "engines": [
+        "node >= 0.8"
+      ],
+      "license": "MIT",
+      "dependencies": {
+        "buffer-from": "^1.0.0",
+        "inherits": "^2.0.3",
+        "readable-stream": "^2.2.2",
+        "typedarray": "^0.0.6"
+      }
+    },
+    "node_modules/content-disposition": {
+      "version": "0.5.4",
+      "license": "MIT",
+      "dependencies": {
+        "safe-buffer": "5.2.1"
+      },
+      "engines": {
+        "node": ">= 0.6"
+      }
+    },
+    "node_modules/content-type": {
+      "version": "1.0.5",
+      "license": "MIT",
+      "engines": {
+        "node": ">= 0.6"
+      }
+    },
+    "node_modules/cookie": {
+      "version": "0.7.1",
+      "license": "MIT",
+      "engines": {
+        "node": ">= 0.6"
+      }
+    },
+    "node_modules/cookie-signature": {
+      "version": "1.0.6",
+      "license": "MIT"
+    },
+    "node_modules/core-util-is": {
+      "version": "1.0.3",
+      "resolved": "https://registry.npmjs.org/core-util-is/-/core-util-is-1.0.3.tgz",
+      "integrity": "sha512-ZQBvi1DcpJ4GDqanjucZ2Hj3wEO5pZDS89BWbkcrvdxksJorwUDDZamX9ldFkp9aw2lmBDLgkObEA4DWNJ9FYQ==",
+      "license": "MIT"
+    },
+    "node_modules/cors": {
+      "version": "2.8.5",
+      "license": "MIT",
+      "dependencies": {
+        "object-assign": "^4",
+        "vary": "^1"
+      },
+      "engines": {
+        "node": ">= 0.10"
+      }
+    },
+    "node_modules/debug": {
+      "version": "2.6.9",
+      "license": "MIT",
+      "dependencies": {
+        "ms": "2.0.0"
+      }
+    },
+    "node_modules/depd": {
+      "version": "2.0.0",
+      "license": "MIT",
+      "engines": {
+        "node": ">= 0.8"
+      }
+    },
+    "node_modules/destroy": {
+      "version": "1.2.0",
+      "license": "MIT",
+      "engines": {
+        "node": ">= 0.8",
+        "npm": "1.2.8000 || >= 1.4.16"
+      }
+    },
+    "node_modules/dunder-proto": {
+      "version": "1.0.1",
+      "license": "MIT",
+      "dependencies": {
+        "call-bind-apply-helpers": "^1.0.1",
+        "es-errors": "^1.3.0",
+        "gopd": "^1.2.0"
+      },
+      "engines": {
+        "node": ">= 0.4"
+      }
+    },
+    "node_modules/ee-first": {
+      "version": "1.1.1",
+      "license": "MIT"
+    },
+    "node_modules/encodeurl": {
+      "version": "2.0.0",
+      "license": "MIT",
+      "engines": {
+        "node": ">= 0.8"
+      }
+    },
+    "node_modules/es-define-property": {
+      "version": "1.0.1",
+      "license": "MIT",
+      "engines": {
+        "node": ">= 0.4"
+      }
+    },
+    "node_modules/es-errors": {
+      "version": "1.3.0",
+      "license": "MIT",
+      "engines": {
+        "node": ">= 0.4"
+      }
+    },
+    "node_modules/es-object-atoms": {
+      "version": "1.1.1",
+      "license": "MIT",
+      "dependencies": {
+        "es-errors": "^1.3.0"
+      },
+      "engines": {
+        "node": ">= 0.4"
+      }
+    },
+    "node_modules/escape-html": {
+      "version": "1.0.3",
+      "license": "MIT"
+    },
+    "node_modules/etag": {
+      "version": "1.8.1",
+      "license": "MIT",
+      "engines": {
+        "node": ">= 0.6"
+      }
+    },
+    "node_modules/express": {
+      "version": "4.21.2",
+      "license": "MIT",
+      "dependencies": {
+        "accepts": "~1.3.8",
+        "array-flatten": "1.1.1",
+        "body-parser": "1.20.3",
+        "content-disposition": "0.5.4",
+        "content-type": "~1.0.4",
+        "cookie": "0.7.1",
+        "cookie-signature": "1.0.6",
+        "debug": "2.6.9",
+        "depd": "2.0.0",
+        "encodeurl": "~2.0.0",
+        "escape-html": "~1.0.3",
+        "etag": "~1.8.1",
+        "finalhandler": "1.3.1",
+        "fresh": "0.5.2",
+        "http-errors": "2.0.0",
+        "merge-descriptors": "1.0.3",
+        "methods": "~1.1.2",
+        "on-finished": "2.4.1",
+        "parseurl": "~1.3.3",
+        "path-to-regexp": "0.1.12",
+        "proxy-addr": "~2.0.7",
+        "qs": "6.13.0",
+        "range-parser": "~1.2.1",
+        "safe-buffer": "5.2.1",
+        "send": "0.19.0",
+        "serve-static": "1.16.2",
+        "setprototypeof": "1.2.0",
+        "statuses": "2.0.1",
+        "type-is": "~1.6.18",
+        "utils-merge": "1.0.1",
+        "vary": "~1.1.2"
+      },
+      "engines": {
+        "node": ">= 0.10.0"
+      },
+      "funding": {
+        "type": "opencollective",
+        "url": "https://opencollective.com/express"
+      }
+    },
+    "node_modules/finalhandler": {
+      "version": "1.3.1",
+      "license": "MIT",
+      "dependencies": {
+        "debug": "2.6.9",
+        "encodeurl": "~2.0.0",
+        "escape-html": "~1.0.3",
+        "on-finished": "2.4.1",
+        "parseurl": "~1.3.3",
+        "statuses": "2.0.1",
+        "unpipe": "~1.0.0"
+      },
+      "engines": {
+        "node": ">= 0.8"
+      }
+    },
+    "node_modules/forwarded": {
+      "version": "0.2.0",
+      "license": "MIT",
+      "engines": {
+        "node": ">= 0.6"
+      }
+    },
+    "node_modules/fresh": {
+      "version": "0.5.2",
+      "license": "MIT",
+      "engines": {
+        "node": ">= 0.6"
+      }
+    },
+    "node_modules/function-bind": {
+      "version": "1.1.2",
+      "license": "MIT",
+      "funding": {
+        "url": "https://github.com/sponsors/ljharb"
+      }
+    },
+    "node_modules/get-intrinsic": {
+      "version": "1.3.0",
+      "license": "MIT",
+      "dependencies": {
+        "call-bind-apply-helpers": "^1.0.2",
+        "es-define-property": "^1.0.1",
+        "es-errors": "^1.3.0",
+        "es-object-atoms": "^1.1.1",
+        "function-bind": "^1.1.2",
+        "get-proto": "^1.0.1",
+        "gopd": "^1.2.0",
+        "has-symbols": "^1.1.0",
+        "hasown": "^2.0.2",
+        "math-intrinsics": "^1.1.0"
+      },
+      "engines": {
+        "node": ">= 0.4"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/ljharb"
+      }
+    },
+    "node_modules/get-proto": {
+      "version": "1.0.1",
+      "license": "MIT",
+      "dependencies": {
+        "dunder-proto": "^1.0.1",
+        "es-object-atoms": "^1.0.0"
+      },
+      "engines": {
+        "node": ">= 0.4"
+      }
+    },
+    "node_modules/gopd": {
+      "version": "1.2.0",
+      "license": "MIT",
+      "engines": {
+        "node": ">= 0.4"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/ljharb"
+      }
+    },
+    "node_modules/has-symbols": {
+      "version": "1.1.0",
+      "license": "MIT",
+      "engines": {
+        "node": ">= 0.4"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/ljharb"
+      }
+    },
+    "node_modules/hasown": {
+      "version": "2.0.2",
+      "license": "MIT",
+      "dependencies": {
+        "function-bind": "^1.1.2"
+      },
+      "engines": {
+        "node": ">= 0.4"
+      }
+    },
+    "node_modules/http-errors": {
+      "version": "2.0.0",
+      "license": "MIT",
+      "dependencies": {
+        "depd": "2.0.0",
+        "inherits": "2.0.4",
+        "setprototypeof": "1.2.0",
+        "statuses": "2.0.1",
+        "toidentifier": "1.0.1"
+      },
+      "engines": {
+        "node": ">= 0.8"
+      }
+    },
+    "node_modules/iconv-lite": {
+      "version": "0.4.24",
+      "license": "MIT",
+      "dependencies": {
+        "safer-buffer": ">= 2.1.2 < 3"
+      },
+      "engines": {
+        "node": ">=0.10.0"
+      }
+    },
+    "node_modules/inherits": {
+      "version": "2.0.4",
+      "license": "ISC"
+    },
+    "node_modules/ipaddr.js": {
+      "version": "1.9.1",
+      "license": "MIT",
+      "engines": {
+        "node": ">= 0.10"
+      }
+    },
+    "node_modules/isarray": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/isarray/-/isarray-1.0.0.tgz",
+      "integrity": "sha512-VLghIWNM6ELQzo7zwmcg0NmTVyWKYjvIeM83yjp0wRDTmUnrM678fQbcKBo6n2CJEF0szoG//ytg+TKla89ALQ==",
+      "license": "MIT"
+    },
+    "node_modules/math-intrinsics": {
+      "version": "1.1.0",
+      "license": "MIT",
+      "engines": {
+        "node": ">= 0.4"
+      }
+    },
+    "node_modules/media-typer": {
+      "version": "0.3.0",
+      "license": "MIT",
+      "engines": {
+        "node": ">= 0.6"
+      }
+    },
+    "node_modules/merge-descriptors": {
+      "version": "1.0.3",
+      "license": "MIT",
+      "funding": {
+        "url": "https://github.com/sponsors/sindresorhus"
+      }
+    },
+    "node_modules/methods": {
+      "version": "1.1.2",
+      "license": "MIT",
+      "engines": {
+        "node": ">= 0.6"
+      }
+    },
+    "node_modules/mime": {
+      "version": "1.6.0",
+      "license": "MIT",
+      "bin": {
+        "mime": "cli.js"
+      },
+      "engines": {
+        "node": ">=4"
+      }
+    },
+    "node_modules/mime-db": {
+      "version": "1.52.0",
+      "license": "MIT",
+      "engines": {
+        "node": ">= 0.6"
+      }
+    },
+    "node_modules/mime-types": {
+      "version": "2.1.35",
+      "license": "MIT",
+      "dependencies": {
+        "mime-db": "1.52.0"
+      },
+      "engines": {
+        "node": ">= 0.6"
+      }
+    },
+    "node_modules/minimist": {
+      "version": "1.2.8",
+      "license": "MIT",
+      "funding": {
+        "url": "https://github.com/sponsors/ljharb"
+      }
+    },
+    "node_modules/mkdirp": {
+      "version": "0.5.6",
+      "license": "MIT",
+      "dependencies": {
+        "minimist": "^1.2.6"
+      },
+      "bin": {
+        "mkdirp": "bin/cmd.js"
+      }
+    },
+    "node_modules/ms": {
+      "version": "2.0.0",
+      "license": "MIT"
+    },
+    "node_modules/multer": {
+      "version": "1.4.5-lts.2",
+      "resolved": "https://registry.npmjs.org/multer/-/multer-1.4.5-lts.2.tgz",
+      "integrity": "sha512-VzGiVigcG9zUAoCNU+xShztrlr1auZOlurXynNvO9GiWD1/mTBbUljOKY+qMeazBqXgRnjzeEgJI/wyjJUHg9A==",
+      "deprecated": "Multer 1.x is impacted by a number of vulnerabilities, which have been patched in 2.x. You should upgrade to the latest 2.x version.",
+      "license": "MIT",
+      "dependencies": {
+        "append-field": "^1.0.0",
+        "busboy": "^1.0.0",
+        "concat-stream": "^1.5.2",
+        "mkdirp": "^0.5.4",
+        "object-assign": "^4.1.1",
+        "type-is": "^1.6.4",
+        "xtend": "^4.0.0"
+      },
+      "engines": {
+        "node": ">= 6.0.0"
+      }
+    },
+    "node_modules/negotiator": {
+      "version": "0.6.3",
+      "license": "MIT",
+      "engines": {
+        "node": ">= 0.6"
+      }
+    },
+    "node_modules/object-assign": {
+      "version": "4.1.1",
+      "license": "MIT",
+      "engines": {
+        "node": ">=0.10.0"
+      }
+    },
+    "node_modules/object-inspect": {
+      "version": "1.13.4",
+      "license": "MIT",
+      "engines": {
+        "node": ">= 0.4"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/ljharb"
+      }
+    },
+    "node_modules/on-finished": {
+      "version": "2.4.1",
+      "license": "MIT",
+      "dependencies": {
+        "ee-first": "1.1.1"
+      },
+      "engines": {
+        "node": ">= 0.8"
+      }
+    },
+    "node_modules/parseurl": {
+      "version": "1.3.3",
+      "license": "MIT",
+      "engines": {
+        "node": ">= 0.8"
+      }
+    },
+    "node_modules/path-to-regexp": {
+      "version": "0.1.12",
+      "license": "MIT"
+    },
+    "node_modules/process-nextick-args": {
+      "version": "2.0.1",
+      "resolved": "https://registry.npmjs.org/process-nextick-args/-/process-nextick-args-2.0.1.tgz",
+      "integrity": "sha512-3ouUOpQhtgrbOa17J7+uxOTpITYWaGP7/AhoR3+A+/1e9skrzelGi/dXzEYyvbxubEF6Wn2ypscTKiKJFFn1ag==",
+      "license": "MIT"
+    },
+    "node_modules/proxy-addr": {
+      "version": "2.0.7",
+      "license": "MIT",
+      "dependencies": {
+        "forwarded": "0.2.0",
+        "ipaddr.js": "1.9.1"
+      },
+      "engines": {
+        "node": ">= 0.10"
+      }
+    },
+    "node_modules/qs": {
+      "version": "6.13.0",
+      "license": "BSD-3-Clause",
+      "dependencies": {
+        "side-channel": "^1.0.6"
+      },
+      "engines": {
+        "node": ">=0.6"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/ljharb"
+      }
+    },
+    "node_modules/range-parser": {
+      "version": "1.2.1",
+      "license": "MIT",
+      "engines": {
+        "node": ">= 0.6"
+      }
+    },
+    "node_modules/raw-body": {
+      "version": "2.5.2",
+      "license": "MIT",
+      "dependencies": {
+        "bytes": "3.1.2",
+        "http-errors": "2.0.0",
+        "iconv-lite": "0.4.24",
+        "unpipe": "1.0.0"
+      },
+      "engines": {
+        "node": ">= 0.8"
+      }
+    },
+    "node_modules/readable-stream": {
+      "version": "2.3.8",
+      "resolved": "https://registry.npmjs.org/readable-stream/-/readable-stream-2.3.8.tgz",
+      "integrity": "sha512-8p0AUk4XODgIewSi0l8Epjs+EVnWiK7NoDIEGU0HhE7+ZyY8D1IMY7odu5lRrFXGg71L15KG8QrPmum45RTtdA==",
+      "license": "MIT",
+      "dependencies": {
+        "core-util-is": "~1.0.0",
+        "inherits": "~2.0.3",
+        "isarray": "~1.0.0",
+        "process-nextick-args": "~2.0.0",
+        "safe-buffer": "~5.1.1",
+        "string_decoder": "~1.1.1",
+        "util-deprecate": "~1.0.1"
+      }
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+      "license": "MIT",
+      "dependencies": {
+        "safe-buffer": "~5.1.0"
+      }
+    },
+    "node_modules/safe-buffer": {
+      "version": "5.2.1",
+      "funding": [
+        {
+          "type": "github",
+          "url": "https://github.com/sponsors/feross"
+        },
+        {
+          "type": "patreon",
+          "url": "https://www.patreon.com/feross"
+        },
+        {
+          "type": "consulting",
+          "url": "https://feross.org/support"
+        }
+      ],
+      "license": "MIT"
+    },
+    "node_modules/safer-buffer": {
+      "version": "2.1.2",
+      "license": "MIT"
+    },
+    "node_modules/send": {
+      "version": "0.19.0",
+      "license": "MIT",
+      "dependencies": {
+        "debug": "2.6.9",
+        "depd": "2.0.0",
+        "destroy": "1.2.0",
+        "encodeurl": "~1.0.2",
+        "escape-html": "~1.0.3",
+        "etag": "~1.8.1",
+        "fresh": "0.5.2",
+        "http-errors": "2.0.0",
+        "mime": "1.6.0",
+        "ms": "2.1.3",
+        "on-finished": "2.4.1",
+        "range-parser": "~1.2.1",
+        "statuses": "2.0.1"
+      },
+      "engines": {
+        "node": ">= 0.8.0"
+      }
+    },
+    "node_modules/send/node_modules/encodeurl": {
+      "version": "1.0.2",
+      "license": "MIT",
+      "engines": {
+        "node": ">= 0.8"
+      }
+    },
+    "node_modules/send/node_modules/ms": {
+      "version": "2.1.3",
+      "license": "MIT"
+    },
+    "node_modules/serve-static": {
+      "version": "1.16.2",
+      "license": "MIT",
+      "dependencies": {
+        "encodeurl": "~2.0.0",
+        "escape-html": "~1.0.3",
+        "parseurl": "~1.3.3",
+        "send": "0.19.0"
+      },
+      "engines": {
+        "node": ">= 0.8.0"
+      }
+    },
+    "node_modules/setprototypeof": {
+      "version": "1.2.0",
+      "license": "ISC"
+    },
+    "node_modules/side-channel": {
+      "version": "1.1.0",
+      "license": "MIT",
+      "dependencies": {
+        "es-errors": "^1.3.0",
+        "object-inspect": "^1.13.3",
+        "side-channel-list": "^1.0.0",
+        "side-channel-map": "^1.0.1",
+        "side-channel-weakmap": "^1.0.2"
+      },
+      "engines": {
+        "node": ">= 0.4"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/ljharb"
+      }
+    },
+    "node_modules/side-channel-list": {
+      "version": "1.0.0",
+      "license": "MIT",
+      "dependencies": {
+        "es-errors": "^1.3.0",
+        "object-inspect": "^1.13.3"
+      },
+      "engines": {
+        "node": ">= 0.4"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/ljharb"
+      }
+    },
+    "node_modules/side-channel-map": {
+      "version": "1.0.1",
+      "license": "MIT",
+      "dependencies": {
+        "call-bound": "^1.0.2",
+        "es-errors": "^1.3.0",
+        "get-intrinsic": "^1.2.5",
+        "object-inspect": "^1.13.3"
+      },
+      "engines": {
+        "node": ">= 0.4"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/ljharb"
+      }
+    },
+    "node_modules/side-channel-weakmap": {
+      "version": "1.0.2",
+      "license": "MIT",
+      "dependencies": {
+        "call-bound": "^1.0.2",
+        "es-errors": "^1.3.0",
+        "get-intrinsic": "^1.2.5",
+        "object-inspect": "^1.13.3",
+        "side-channel-map": "^1.0.1"
+      },
+      "engines": {
+        "node": ">= 0.4"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/ljharb"
+      }
+    },
+    "node_modules/statuses": {
+      "version": "2.0.1",
+      "license": "MIT",
+      "engines": {
+        "node": ">= 0.8"
+      }
+    },
+    "node_modules/streamsearch": {
+      "version": "1.1.0",
+      "engines": {
+        "node": ">=10.0.0"
+      }
+    },
+    "node_modules/toidentifier": {
+      "version": "1.0.1",
+      "license": "MIT",
+      "engines": {
+        "node": ">=0.6"
+      }
+    },
+    "node_modules/type-is": {
+      "version": "1.6.18",
+      "license": "MIT",
+      "dependencies": {
+        "media-typer": "0.3.0",
+        "mime-types": "~2.1.24"
+      },
+      "engines": {
+        "node": ">= 0.6"
+      }
+    },
+    "node_modules/typedarray": {
+      "version": "0.0.6",
+      "resolved": "https://registry.npmjs.org/typedarray/-/typedarray-0.0.6.tgz",
+      "integrity": "sha512-/aCDEGatGvZ2BIk+HmLf4ifCJFwvKFNb9/JeZPMulfgFracn9QFcAf5GO8B/mweUjSoblS5In0cWhqpfs/5PQA==",
+      "license": "MIT"
+    },
+    "node_modules/unpipe": {
+      "version": "1.0.0",
+      "license": "MIT",
+      "engines": {
+        "node": ">= 0.8"
+      }
+    },
+    "node_modules/util-deprecate": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmjs.org/util-deprecate/-/util-deprecate-1.0.2.tgz",
+      "integrity": "sha512-EPD5q1uXyFxJpCrLnCc1nHnq3gOa6DZBocAIiI2TaSCA7VCJ1UJDMagCzIkXNsUYfD1daK//LTEQ8xiIbrHtcw==",
+      "license": "MIT"
+    },
+    "node_modules/utils-merge": {
+      "version": "1.0.1",
+      "license": "MIT",
+      "engines": {
+        "node": ">= 0.4.0"
+      }
+    },
+    "node_modules/vary": {
+      "version": "1.1.2",
+      "license": "MIT",
+      "engines": {
+        "node": ">= 0.8"
+      }
+    },
+    "node_modules/xtend": {
+      "version": "4.0.2",
+      "license": "MIT",
+      "engines": {
+        "node": ">=0.4"
+      }
+    }
+  }
+}

package.json

@@ -5,32 +5,30 @@
   "main": "server.js",
   "scripts": {
     "start": "node server.js",
-    "dev": "node server.js"
+    "dev": "node server.js",
+    "test": "node test-local.js",
+    "start-simple": "node server-simple.js"
   },
   "dependencies": {
     "express": "^4.18.2",
-    "multer": "^2.0.0-rc.4",
+    "multer": "^1.4.5-lts.1",
     "cors": "^2.8.5",
     "@tensorflow/tfjs": "^4.11.0",
     "@tensorflow/tfjs-backend-wasm": "~4.11.0",
-    "@tensorflow/tfjs-backend-webgl": "~4.11.0",
     "@tensorflow/tfjs-backend-cpu": "~4.11.0",
     "@upscalerjs/esrgan-slim": "1.0.0-beta.12",
     "@upscalerjs/esrgan-medium": "1.0.0-beta.13",
     "@upscalerjs/esrgan-thick": "1.0.0-beta.16",
     "upscaler": "1.0.0-beta.19",
-    "canvas": "^2.11.2",
-    "sharp": "^0.32.6"
+    "canvas": "^2.11.2"
   },
   "engines": {
     "node": ">=18.0.0"
   },
   "keywords": [
-    "ai",
-    "upscaler",
-    "tensorflow",
+    "api",
     "image-processing",
-    "api"
+    "placeholder"
   ],
   "author": "Upscale2 Team",
   "license": "MIT"

server-simple.js

@@ -0,0 +1,109 @@
+const express = require('express');
+const multer = require('multer');
+const cors = require('cors');
+
+const app = express();
+const PORT = process.env.PORT || 7860;
+
+// Middleware
+app.use(cors());
+app.use(express.json({ limit: '50mb' }));
+app.use(express.urlencoded({ extended: true, limit: '50mb' }));
+
+// Serve static files from public directory
+app.use(express.static('public'));
+
+// Configure multer for file uploads
+const upload = multer({
+  storage: multer.memoryStorage(),
+  limits: {
+    fileSize: 10 * 1024 * 1024, // 10MB limit
+  },
+  fileFilter: (req, file, cb) => {
+    if (file.mimetype.startsWith('image/')) {
+      cb(null, true);
+    } else {
+      cb(new Error('Only image files are allowed'), false);
+    }
+  }
+});
+
+// Health check endpoint
+app.get('/', (req, res) => {
+  res.json({
+    status: 'ok',
+    message: 'AI Image Upscaler API (Simple Mode)',
+    version: '1.0.0',
+    note: 'This is a simplified version. Full AI upscaling requires TensorFlow.js dependencies.',
+    endpoints: {
+      upscale: 'POST /upscale',
+      health: 'GET /'
+    }
+  });
+});
+
+// Simplified upscale endpoint (placeholder)
+app.post('/upscale', upload.single('image'), async (req, res) => {
+  try {
+    if (!req.file) {
+      return res.status(400).json({ error: 'No image file provided' });
+    }
+
+    const { scale = 2, modelType = 'esrgan-slim', patchSize = 128, padding = 8 } = req.body;
+    
+    console.log(`Received upscale request: ${req.file.originalname}, scale: ${scale}x, model: ${modelType}`);
+    
+    // For now, return the original image as base64 (placeholder)
+    const originalImageBase64 = `data:${req.file.mimetype};base64,${req.file.buffer.toString('base64')}`;
+    
+    // Simulate processing time
+    await new Promise(resolve => setTimeout(resolve, 1000));
+    
+    res.json({
+      success: true,
+      result: originalImageBase64,
+      metadata: {
+        scale: parseInt(scale),
+        modelType: modelType,
+        patchSize: parseInt(patchSize),
+        padding: parseInt(padding),
+        processingTime: 1000,
+        backend: 'placeholder',
+        note: 'This is a placeholder response. Install TensorFlow.js dependencies for actual AI upscaling.'
+      }
+    });
+
+  } catch (error) {
+    console.error('Upscaling error:', error);
+    res.status(500).json({
+      error: 'Failed to process image',
+      message: error.message
+    });
+  }
+});
+
+// Error handling middleware
+app.use((error, req, res, next) => {
+  if (error instanceof multer.MulterError) {
+    if (error.code === 'LIMIT_FILE_SIZE') {
+      return res.status(400).json({ error: 'File too large. Maximum size is 10MB' });
+    }
+  }
+  
+  console.error('Unhandled error:', error);
+  res.status(500).json({ error: 'Internal server error' });
+});
+
+// Start server
+app.listen(PORT, '0.0.0.0', () => {
+  console.log(`🚀 Simple Upscaler API server running on port ${PORT}`);
+  console.log(`📝 Note: This is a simplified version without AI processing`);
+  console.log(`🔗 Health check: http://localhost:${PORT}/`);
+  console.log(`🌐 Web interface: http://localhost:${PORT}/index.html`);
+});
+
+// Handle graceful shutdown
+process.on('SIGTERM', () => {
+  console.log('Received SIGTERM, shutting down gracefully...');
+  process.exit(0);
+});

server.js

@@ -1,11 +1,15 @@
 const express = require('express');
 const multer = require('multer');
 const cors = require('cors');
-const sharp = require('sharp');
 const tf = require('@tensorflow/tfjs');
 require('@tensorflow/tfjs-backend-wasm');
 require('@tensorflow/tfjs-backend-cpu');
-const Upscaler = require('upscaler').default;
+
+// Setup Canvas for Node.js environment
+const { createCanvas, loadImage } = require('canvas');
+
+// Import Upscaler using dynamic import
+let Upscaler;
 
 const app = express();
 const PORT = process.env.PORT || 7860;
@@ -95,10 +99,16 @@ async function getModelForScaleAndType(scale, modelType) {
 async function initializeUpscaler(scale = 2, modelType = 'esrgan-slim') {
   try {
     console.log(`Initializing upscaler with scale ${scale}x and model ${modelType}...`);
-    
+
+    // Dynamic import of Upscaler
+    if (!Upscaler) {
+      const upscalerModule = await import('upscaler');
+      Upscaler = upscalerModule.default;
+    }
+
     const model = await getModelForScaleAndType(scale, modelType);
     upscalerInstance = new Upscaler({ model });
-    
+
     console.log('Upscaler initialized successfully');
     return upscalerInstance;
   } catch (error) {

test-local.js

@@ -0,0 +1,108 @@
+// Simple test script to verify basic functionality without full dependencies
+const express = require('express');
+const multer = require('multer');
+const cors = require('cors');
+
+const app = express();
+const PORT = process.env.PORT || 7860;
+
+// Middleware
+app.use(cors());
+app.use(express.json({ limit: '50mb' }));
+app.use(express.urlencoded({ extended: true, limit: '50mb' }));
+app.use(express.static('public'));
+
+// Configure multer for file uploads
+const upload = multer({
+  storage: multer.memoryStorage(),
+  limits: {
+    fileSize: 10 * 1024 * 1024, // 10MB limit
+  },
+  fileFilter: (req, file, cb) => {
+    if (file.mimetype.startsWith('image/')) {
+      cb(null, true);
+    } else {
+      cb(new Error('Only image files are allowed'), false);
+    }
+  }
+});
+
+// Health check endpoint
+app.get('/', (req, res) => {
+  res.json({
+    status: 'ok',
+    message: 'AI Image Upscaler API (Test Mode)',
+    version: '1.0.0',
+    note: 'This is a test version. Canvas and TensorFlow.js dependencies are required for full functionality.',
+    endpoints: {
+      upscale: 'POST /upscale',
+      health: 'GET /'
+    }
+  });
+});
+
+// Test upscale endpoint
+app.post('/upscale', upload.single('image'), async (req, res) => {
+  try {
+    if (!req.file) {
+      return res.status(400).json({ error: 'No image file provided' });
+    }
+
+    const { scale = 2, modelType = 'esrgan-slim', patchSize = 128, padding = 8 } = req.body;
+    
+    console.log(`Test upscale request: ${req.file.originalname}, scale: ${scale}x, model: ${modelType}`);
+    
+    // Return the original image as base64 (test mode)
+    const originalImageBase64 = `data:${req.file.mimetype};base64,${req.file.buffer.toString('base64')}`;
+    
+    // Simulate processing time
+    await new Promise(resolve => setTimeout(resolve, 500));
+    
+    res.json({
+      success: true,
+      result: originalImageBase64,
+      metadata: {
+        scale: parseInt(scale),
+        modelType: modelType,
+        patchSize: parseInt(patchSize),
+        padding: parseInt(padding),
+        processingTime: 500,
+        backend: 'test-mode',
+        note: 'This is a test response. Original image returned without upscaling.'
+      }
+    });
+
+  } catch (error) {
+    console.error('Test upscaling error:', error);
+    res.status(500).json({
+      error: 'Failed to process image',
+      message: error.message
+    });
+  }
+});
+
+// Error handling middleware
+app.use((error, req, res, next) => {
+  if (error instanceof multer.MulterError) {
+    if (error.code === 'LIMIT_FILE_SIZE') {
+      return res.status(400).json({ error: 'File too large. Maximum size is 10MB' });
+    }
+  }
+  
+  console.error('Unhandled error:', error);
+  res.status(500).json({ error: 'Internal server error' });
+});
+
+// Start server
+app.listen(PORT, '0.0.0.0', () => {
+  console.log(`🧪 Test Upscaler API server running on port ${PORT}`);
+  console.log(`📝 Note: This is a test version without AI processing`);
+  console.log(`🔗 Health check: http://localhost:${PORT}/`);
+  console.log(`🌐 Web interface: http://localhost:${PORT}/index.html`);
+});
+
+// Handle graceful shutdown
+process.on('SIGTERM', () => {
+  console.log('Received SIGTERM, shutting down gracefully...');
+  process.exit(0);
+});