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app.js
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app.js
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// variable declaration
const express = require("express");
const app = express();
const fs = require("fs");
const multer = require("multer");
const { TesseractWorker } = require("tesseract.js");
const worker = new TesseractWorker();
// storage
const storage = multer.diskStorage({
destination: (req, file, cb) => {
cb(null, "./uploads");
},
filename: (req, file, cb) => {
cb(null, file.originalname);
}
});
//upload
const upload = multer({ storage: storage }).single("avatar");
app.set("view engine", "ejs");
app.use(express.static("public"));
// routes
app.get("/", (req, res) => {
res.render("index");
});
//store in uploads
app.post("/upload", (req, res) => {
upload(req, res, err => {
fs.readFile(`./uploads/${req.file.originalname}`, (err, data) => {
//if error
if (err) return console.log("This is your error ", err);
worker
.recognize(data, "eng", { tessjs_create_pdf: "1" })
.progress(progress => {
console.log(progress);
})
.then(result => {
res.redirect("/download");
});
// .finally(() => worker.terminate());
});
});
});
app.get("/download", (req, res) => {
const file = `${__dirname}/tesseract.js-ocr-result.pdf`;
res.download(file);
});
// start up the server
//running on port 5000
const PORT = 5000 || process.env.PORT;
app.listen(PORT, () => console.log(`Server has started on port ${PORT}`));