搜尋和建立索引

AdobeDocumentServicesAPIs
config
default.json
controllers
createPDFController.js
makeOCRController.js
searchController.js
models
document.js
output
.gitkeep
routes
web.js
services
upload.js
views
index.hbs
ocr.hbs
search.hbs
index.js

### config/default.json and config/dev.json
{ "DBHost": "YOUR_DB_URI" }

{
    "name": "adobedocumentservicesapis",
    "version": "1.0.0",
    "description": "",
    "main": "index.js",
    "directories": {
    "test": "test"
    },
    "dependencies": {
    "body-parser": "^1.19.0",
    "config": "^3.3.6",
    "express": "^4.17.1",
    "hbs": "^4.1.1",
    "mongoose": "^5.12.1",
    "morgan": "^1.10.0",
    "multer": "^1.4.2",
    "path": "^0.12.7"
    },
    "devDependencies": {},
    "scripts": {
    "start": "set NODE_ENV=dev && node index.js"
    },
    "repository": {
    "type": "git",
    "url": "git+https://github.com/agavitalis/AdobeDocumentServicesAPIs.git"
    },
    "author": "Ogbonna Vitalis",
    "license": "ISC",
    "bugs": {
    "url": "https://github.com/agavitalis/AdobeDocumentServicesAPIs/issues"
    },
    "homepage": "https://github.com/agavitalis/AdobeDocumentServicesAPIs#readme"
}

###bash
npm install express mongoose config body-parser morgan multer hbs path pdf-parse
Ensure that the content of your package.json file is similar to this code snippet:
###package.json
{

const PDFToolsSdk = require('@adobe/documentservices-pdftools-node-sdk');
/*
* GET / route to show the createPDF form.
*/
function createPDF(req, res) {
//catch any response on the url
let response = req.query.response
res.render('index', { response })
}
/*
* POST /createPDF to create a new PDF File.
*/
function createPDFPost(req, res) {
let filePath = req.file.path;
let fileName = req.file.filename;
try {
// Initial setup, create credentials instance.
const credentials = PDFToolsSdk.Credentials
.serviceAccountCredentialsBuilder()
.fromFile("pdftools-api-credentials.json")
.build();
// Create an ExecutionContext using credentials and create a new operation
instance.
const executionContext = PDFToolsSdk.ExecutionContext.create(credentials),
createPdfOperation = PDFToolsSdk.CreatePDF.Operation.createNew();
// Set operation input from a source file.
const input = PDFToolsSdk.FileRef.createFromLocalFile(filePath);
createPdfOperation.setInput(input);
// Execute the operation and Save the result to the specified location.
createPdfOperation.execute(executionContext)
.then((result) => {
result.saveAsFile('output/createPDFFromDOCX.pdf')
//download the file
res.redirect('/?response=PDF Successfully created')
})
.catch(err => {
if (err instanceof PDFToolsSdk.Error.ServiceApiError
|| err instanceof PDFToolsSdk.Error.ServiceUsageError) {
console.log('Exception encountered while executing operation',
err);
} else {
console.log('Exception encountered while executing operation',
err);
}
});
} catch (err) {
console.log('Exception encountered while executing operation', err);
}
}
//export all the functions
module.exports = { createPDF, createPDFPost };

const fs = require('fs')
const pdf = require('pdf-parse');
const mongoose = require('mongoose');
const Document = require('../models/document');
const PDFToolsSdk = require('@adobe/documentservices-pdftools-node-sdk');
/*
* GET /makeOCR route to show the makeOCR form.
*/
function makeOCR(req, res) {
//catch any response on the url
let response = req.query.response
res.render('ocr', { response })
}
/*
* POST /makeOCRPost to create a new PDF File.
*/
function makeOCRPost(req, res) {
let filePath = req.file.path;
let fileName = req.file.filename;
try {
// Initial setup, create credentials instance.
const credentials = PDFToolsSdk.Credentials
.serviceAccountCredentialsBuilder()
.fromFile("pdftools-api-credentials.json")
.build();
// Create an ExecutionContext using credentials and create a new operation
instance.
const executionContext = PDFToolsSdk.ExecutionContext.create(credentials),
ocrOperation = PDFToolsSdk.OCR.Operation.createNew();
// Set operation input from a source file.
const input = PDFToolsSdk.FileRef.createFromLocalFile(filePath);
ocrOperation.setInput(input);
// Execute the operation and Save the result to the specified location.
ocrOperation.execute(executionContext)
.then(async (result) => {
let newFileName = `createPDFFromDOCX-${Math.random() * 171}.pdf`;
await result.saveAsFile(`output/${newFileName}`);
let documentContent = fs.readFileSync(
require("path").resolve("./") + `\\output\\${newFileName}`
);
pdf(documentContent)
.then(function (data) {
//Creates a new document
var newDocument = new Document({
documentName: fileName,
documentDescription: description,
documentContent: data.text,
url: require("path").resolve("./") + `\\output\\${newFileName}`
});
//Save it into the DB.
newDocument.save((err, docs) => {
if (err) {
res.send(err);
} else {
//If no errors, send it back to the client
res.redirect(
"/makeOCR?response=OCR Operation Successfully performed on
the PDF File"
);
}
});
})
.catch(function (error) {
// handle exceptions
console.log(error);
});
})
.catch(err => {
if (err instanceof PDFToolsSdk.Error.ServiceApiError
|| err instanceof PDFToolsSdk.Error.ServiceUsageError) {
console.log('Exception encountered while executing operation',
err);
} else {
console.log('Exception encountered while executing operation',
err);
}
});
} catch (err) {
console.log('Exception encountered while executing operation', err);
}
}
//export all the functions
module.exports = { makeOCR, makeOCRPost };

const mongoose = require("mongoose");
const Schema = mongoose.Schema;
//Document schema definition
var DocumentSchema = new Schema(
{
documentName: { type: String, required: false },
documentDescription: { type: String, required: false },
documentContent: { type: String, required: false },
url: { type: String, required: false },
status: {
type: String,
enum : ["active","inactive"],
default: "active"
}
},
{ timestamps: true }
);
//for text search
DocumentSchema.index({
documentContent: "text",
});
//Exports the DocumentSchema for use elsewhere.
module.exports = mongoose.model("document", DocumentSchema);

const fs = require('fs')
const mongoose = require('mongoose');
const Document = require('../models/document');
/*
* GET / route to show the search form.
*/
function search(req, res) {
//catch any response on the url
let response = req.query.response
res.render('search', { response })
}
/*
* POST /searchPost to search the contents of your saved file.
*/
function searchPost(req, res) {
let searchString = req.body.searchString;
Document.aggregate([
{ $match: { $text: { $search: searchString } } },
{ $sort: { score: { $meta: "textScore" } } },
])
.then(function (documents) {
res.render('search', { documents })
})
.catch(function (error) {
let response = error
res.render('search', { response })
});
}
//export all the functions
module.exports = { search, searchPost, downloadPDF };

/*
* POST /downloadPDF To Download PDF Documents.
*/
async function downloadPDF(req, res) {
console.log("here")
let documentId = req.params.documentId
let document = await Document.findOne({_id:documentId});
res.download(download.link);
}