update server.js

package-lock.json

@@ -13,6 +13,7 @@
         "docx": "^9.1.1",
         "dotenv": "^16.4.7",
         "express": "^4.21.2",
+        "multer": "^1.4.5-lts.1",
         "pdf-parse": "^1.1.1"
       }
     },
@@ -87,6 +88,12 @@
         "node": ">= 8.0.0"
       }
     },
+    "node_modules/append-field": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/append-field/-/append-field-1.0.0.tgz",
+      "integrity": "sha512-klpgFSWLW1ZEs8svjfb7g4qWY0YS5imI82dTg+QahUvJ8YqAY0P10Uk8tTyh9ZGuYEZEMaeJYCF5BFuX552hsw==",
+      "license": "MIT"
+    },
     "node_modules/array-flatten": {
       "version": "1.1.1",
       "resolved": "https://registry.npmjs.org/array-flatten/-/array-flatten-1.1.1.tgz",
@@ -138,6 +145,23 @@
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       "license": "MIT"
     },
+    "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",
+      "resolved": "https://registry.npmjs.org/busboy/-/busboy-1.6.0.tgz",
+      "integrity": "sha512-8SFQbg/0hQ9xy3UNTB0YEnsNBbWfhf7RtnzpL7TkBiTBRfrQ9Fxcnz7VJsleJpyp6rVLvXiuORqjlHi5q+PYuA==",
+      "dependencies": {
+        "streamsearch": "^1.1.0"
+      },
+      "engines": {
+        "node": ">=10.16.0"
+      }
+    },
     "node_modules/bytes": {
       "version": "3.1.2",
       "resolved": "https://registry.npmjs.org/bytes/-/bytes-3.1.2.tgz",
@@ -188,6 +212,21 @@
         "node": ">= 0.8"
       }
     },
+    "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",
       "resolved": "https://registry.npmjs.org/content-disposition/-/content-disposition-0.5.4.tgz",
@@ -831,12 +870,51 @@
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       "license": "ISC"
     },
+    "node_modules/minimist": {
+      "version": "1.2.8",
+      "resolved": "https://registry.npmjs.org/minimist/-/minimist-1.2.8.tgz",
+      "integrity": "sha512-2yyAR8qBkN3YuheJanUpWC5U3bb5osDywNB8RzDVlDwDHbocAJveqqj1u8+SVD7jkWT4yvsHCpWqqWqAxb0zCA==",
+      "license": "MIT",
+      "funding": {
+        "url": "https://github.com/sponsors/ljharb"
+      }
+    },
+    "node_modules/mkdirp": {
+      "version": "0.5.6",
+      "resolved": "https://registry.npmjs.org/mkdirp/-/mkdirp-0.5.6.tgz",
+      "integrity": "sha512-FP+p8RB8OWpF3YZBCrP5gtADmtXApB5AMLn+vdyA+PyxCjrCs00mjyUozssO33cwDeT3wNGdLxJ5M//YqtHAJw==",
+      "license": "MIT",
+      "dependencies": {
+        "minimist": "^1.2.6"
+      },
+      "bin": {
+        "mkdirp": "bin/cmd.js"
+      }
+    },
     "node_modules/ms": {
       "version": "2.1.3",
       "resolved": "https://registry.npmjs.org/ms/-/ms-2.1.3.tgz",
       "integrity": "sha512-6FlzubTLZG3J2a/NVCAleEhjzq5oxgHyaCU9yYXvcLsvoVaHJq/s5xXI6/XXP6tz7R9xAOtHnSO/tXtF3WRTlA==",
       "license": "MIT"
     },
+    "node_modules/multer": {
+      "version": "1.4.5-lts.1",
+      "resolved": "https://registry.npmjs.org/multer/-/multer-1.4.5-lts.1.tgz",
+      "integrity": "sha512-ywPWvcDMeH+z9gQq5qYHCCy+ethsk4goepZ45GLD63fOu0YcNecQxi64nDs3qluZB+murG3/D4dJ7+dGctcCQQ==",
+      "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/nanoid": {
       "version": "5.0.9",
       "resolved": "https://registry.npmjs.org/nanoid/-/nanoid-5.0.9.tgz",
@@ -909,6 +987,15 @@
         }
       }
     },
+    "node_modules/object-assign": {
+      "version": "4.1.1",
+      "resolved": "https://registry.npmjs.org/object-assign/-/object-assign-4.1.1.tgz",
+      "integrity": "sha512-rJgTQnkUnH1sFw8yT6VSU3zD3sWmu6sZhIseY8VX+GRu3P6F7Fu+JNDoXfklElbLJSnc3FUQHVe4cU5hj+BcUg==",
+      "license": "MIT",
+      "engines": {
+        "node": ">=0.10.0"
+      }
+    },
     "node_modules/object-inspect": {
       "version": "1.13.4",
       "resolved": "https://registry.npmjs.org/object-inspect/-/object-inspect-1.13.4.tgz",
@@ -1214,6 +1301,14 @@
         "node": ">= 0.8"
       }
     },
+    "node_modules/streamsearch": {
+      "version": "1.1.0",
+      "resolved": "https://registry.npmjs.org/streamsearch/-/streamsearch-1.1.0.tgz",
+      "integrity": "sha512-Mcc5wHehp9aXz1ax6bZUyY5afg9u2rv5cqQI3mRrYkGC8rW2hM02jWuwjtL++LS5qinSyhj2QfLyNsuc+VsExg==",
+      "engines": {
+        "node": ">=10.0.0"
+      }
+    },
     "node_modules/string_decoder": {
       "version": "1.1.1",
       "resolved": "https://registry.npmjs.org/string_decoder/-/string_decoder-1.1.1.tgz",
@@ -1251,6 +1346,12 @@
         "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/undici-types": {
       "version": "5.26.5",
       "resolved": "https://registry.npmjs.org/undici-types/-/undici-types-5.26.5.tgz",
@@ -1332,6 +1433,15 @@
       "bin": {
         "xml-js": "bin/cli.js"
       }
+    },
+    "node_modules/xtend": {
+      "version": "4.0.2",
+      "resolved": "https://registry.npmjs.org/xtend/-/xtend-4.0.2.tgz",
+      "integrity": "sha512-LKYU1iAXJXUgAXn9URjiu+MWhyUXHsvfp7mcuYm9dSUKK0/CjtrUwFAxD82/mCWbtLsGjFIad0wIsod4zrTAEQ==",
+      "license": "MIT",
+      "engines": {
+        "node": ">=0.4"
+      }
     }
   }
 }

package.json

@@ -4,6 +4,7 @@
     "docx": "^9.1.1",
     "dotenv": "^16.4.7",
     "express": "^4.21.2",
+    "multer": "^1.4.5-lts.1",
     "pdf-parse": "^1.1.1"
   },
   "name": "ai_cover_letter_generator",

routes/generate.js

@@ -0,0 +1,63 @@
+// Load Modules
+const express = require('express');
+const multer = require('multer');
+const pdf = require('pdf-parse');
+const { Document, Packer, Paragraph, TextRun } = require('docx');
+const fs = require('fs');
+const promises = require('fs/promises');
+const Anthropic = require('@anthropic-ai/sdk');
+const path = require('path');
+const { runInNewContext } = require('vm');
+
+// Load Environment Variables
+require('dotenv').config();
+
+const router = express.Router();
+const upload = multer({ dest: 'uploads/'});
+
+// initialize LLM
+//TODO Update to have User Provide their own key
+const anthropic = new Anthropic({
+  apiKey: process.env.ANTHROPIC_API_KEY,
+});
+
+
+// Handle Resume upload and user input for Job Description
+router.post('/', upload.single('resume'), async (req, res) =>{
+  try{
+    const resumePath = req.file.path;
+    const jobDescription = req.body.jobDescription;
+
+    // Load the LLM APi Messages
+    // These include placeholders to be replaced later in function
+    const resume_parser_api = require('../data/resume_parser_api.json');
+    const cover_letter_api = require('../data/cover_letter_api.json');
+
+
+    // Extract Data from PDF (includes text and meta data if needed for later development)
+    const resumeData = await promises.readFile(resumePath);
+    const extractedResumeText = await pdf(resumeData);
+
+    // Replace placeholder in resume api with extracted text 
+    resume_parser_api.messages[0].content[0].text = resume_parser_api.messages[0].content[0].text.replace("{{resume}}", extractedResumeText.text);
+
+    // Send resume to LLM 
+    const resumeResponse = await anthropic.messages.create(resume_parser_api);
+    const candiateProfile = resumeResponse.content[0].text.split('```json')[1].split('```')[0].trim();
+
+    // Replace variables in cover letter API prompt
+    cover_letter_api.messages[0].content[0].text = cover_letter_api.messages[0].content[0].text
+      .replace('{{resume_json}}', candidateProfile)
+      .replace('{{job_description}}', jobDescription)
+      .replace('{{date}}', new Date().toDateString());
+  
+    //Send data to LLM to generate Cover Letter
+    const coverLetterResponse = await anthropic.messages.create(cover_letter_api);
+    const coverLetterRawText = coverLetterResponse.content[0].text.split('<cover_letter>')[1].split('</cover_letter>')[0].trim();
+  
+    res.json({ coverLetter: coverLetterRawText });
+  } catch (error) {
+    console.error(error);
+    res.status(500).json({ error: 'Error generating cover letter' });
+  } 
+});

server.js

@@ -13,8 +13,8 @@ app.use(express.json());
 
 
 // Routes
-// const generateRoute = require('./routes/generate');
-// app.use('/generate', generateRoute);
+const generateRoute = require('./routes/generate');
+app.use('/generate', generateRoute);
 
 app.listen(PORT, () => {
   console.log(`Server running on http://localhost:${PORT}`);