groupdocs-cloud-gists/ExtractDataFromPDF_NodeJs.md

## ExtractDataFromPDF_NodeJs.md

      
    Raw
  

              ExtractDataFromPDF_NodeJs.md
            
          
    learn how to extract specific data from PDF documents using a REST API in Node.js: https://blog.groupdocs.cloud/2021/12/21/extract-data-from-pdf-using-rest-api-in-node-js/
The following topics shall be covered in this article:

REST API and Node.js SDK to Extract Data from PDF
Extract Data by Template Object using Node.js
Extract Data by Template File using Node.js
Parse by Template of a Document Inside Container


## ExtractDataFromPDF_NodeJs_Configurations.js
// This code example demonstrates how to add your client ID and Secret.
global.clientId = "112f0f38-9dae-42d5-b4fc-cc84ae644972";
global.clientSecret = "16ad3fe0bdc39c910f57d2fd48a5d618";

global.myStorage = "";

const configuration = new groupdocs_parser_cloud.Configuration(clientId, clientSecret);
configuration.apiBaseUrl = "https://api.groupdocs.cloud";

## ExtractDataFromPDF_NodeJs_GetTemplate.js
// This code example demonstrates a template object.
let field1 = new groupdocs_parser_cloud.Field();
field1.fieldName = "Address";
let fieldPosition1 = new groupdocs_parser_cloud.FieldPosition();
fieldPosition1.fieldPositionType = "Regex";
fieldPosition1.regex = "Company address:";
field1.fieldPosition = fieldPosition1;

let field2 = new groupdocs_parser_cloud.Field();
field2.fieldName = "CompanyAddress";
let fieldPosition2 = new groupdocs_parser_cloud.FieldPosition();
fieldPosition2.fieldPositionType = "Linked";
fieldPosition2.linkedFieldName = "ADDRESS";
fieldPosition2.isRightLinked = true;
let size2 = new groupdocs_parser_cloud.Size();
size2.width = 100;
size2.height = 10;
fieldPosition2.searchArea = size2;
fieldPosition2.autoScale = true;
field2.fieldPosition = fieldPosition2;

let field3 = new groupdocs_parser_cloud.Field();
field3.fieldName = "Company";
let fieldPosition3 = new groupdocs_parser_cloud.FieldPosition();
fieldPosition3.fieldPositionType = "Regex";
fieldPosition3.regex = "Company name:";
field3.fieldPosition = fieldPosition3;

let field4 = new groupdocs_parser_cloud.Field();
field4.fieldName = "CompanyName";
let fieldPosition4 = new groupdocs_parser_cloud.FieldPosition();
fieldPosition4.fieldPositionType = "Linked";
fieldPosition4.linkedFieldName = "Company";
fieldPosition4.isRightLinked = true;
let size4 = new groupdocs_parser_cloud.Size();
size4.width = 100;
size4.height = 10;
fieldPosition4.searchArea = size4;
fieldPosition4.autoScale = true;
field4.fieldPosition = fieldPosition4;

let table = new groupdocs_parser_cloud.Table();
table.tableName = "Companies";
let detectorparams = new groupdocs_parser_cloud.DetectorParameters();
let rect = new groupdocs_parser_cloud.Rectangle();
let size = new groupdocs_parser_cloud.Size();
size.height = 60;
size.width = 480;
let position = new groupdocs_parser_cloud.Point();
position.x = 77;
position.y = 279;
rect.size = size;
rect.position = position;
detectorparams.rectangle = rect;
table.detectorParameters = detectorparams;

let fields = [field1, field2, field3, field4];
let tables = [table];
let template = new groupdocs_parser_cloud.Template();
template.fields = fields;
template.tables = tables;

return template;

## ExtractDataFromPDF_NodeJs_ParseByTemplateFromJSON.js
// This code example demonstrates how to Parse a PDF document by a JSON based Template.
// Create an instance of the API
let parseApi = groupdocs_parser_cloud.ParseApi.fromConfig(configuration);

// Input file path
let fileInfo = new groupdocs_parser_cloud.FileInfo()
fileInfo.filePath = "companies.pdf"

// Create Parse options
let options = new groupdocs_parser_cloud.ParseOptions();
options.fileInfo = fileInfo;
options.templatePath = "template.json";

// Create Parse request
let request = new groupdocs_parser_cloud.ParseRequest(options);

// Parse the document
let response = await parseApi.parse(request);

// Display output
response.fieldsData.forEach(data => {
  if (data.pageArea.pageTextArea != null) {
    console.log("Field name: " + data.name + ". Text :" + data.pageArea.pageTextArea.text);
  }

  if (data.pageArea.pageTableArea != null) {
    console.log("Table name: " + data.name);

    data.pageArea.pageTableArea.pageTableAreaCells.forEach(cell => {
      console.log("Table cell. Row " + cell.rowIndex + " column " + cell.columnIndex + ". Text: " + cell.pageArea.pageTextArea.text);
    });
  }
});

## ExtractDataFromPDF_NodeJs_ParseByTemplateObject.js
// This code example demonstrates how to Parse a PDF document by Template object.
// Api initialization
let parseApi = groupdocs_parser_cloud.ParseApi.fromConfig(configuration);

// Input file
let fileInfo = new groupdocs_parser_cloud.FileInfo();
fileInfo.filePath = "companies.pdf";

// Define parse options
let options = new groupdocs_parser_cloud.ParseOptions();
options.fileInfo = fileInfo;

// Get Template Object
options.template = GetTemplate();

// Create parse request
let request = new groupdocs_parser_cloud.ParseRequest(options);
// Pasrse the document
let result = await parseApi.parse(request);

// Show Results
result.fieldsData.forEach(data => {
  if (data.pageArea.pageTextArea != null) {
    console.log("Field name: " + data.name + ". Text :" + data.pageArea.pageTextArea.text);
  }

  if (data.pageArea.pageTableArea != null) {
    console.log("Table name: " + data.name);

    data.pageArea.pageTableArea.pageTableAreaCells.forEach(cell => {
      console.log("Table cell. Row " + cell.rowIndex + " column " + cell.columnIndex + ". Text: " + cell.pageArea.pageTextArea.text);
    });
  }
});

## ExtractDataFromPDF_NodeJs_ParseByTemplateOfADocumentInsideAContainer.js
// This code example demonstrates how to Parse a PDF document available inside container.
// Api initialization
let parseApi = groupdocs_parser_cloud.ParseApi.fromConfig(configuration);

// Input file path
let fileInfo = new groupdocs_parser_cloud.FileInfo();
fileInfo.filePath = "archive.zip";

// Create parse options
let options = new groupdocs_parser_cloud.ParseOptions();
options.fileInfo = fileInfo;

// Get template object
options.template = GetTemplate();

// Container item info
let containerItemInfo = new groupdocs_parser_cloud.ContainerItemInfo();
containerItemInfo.relativePath = "companies.pdf";
options.containerItemInfo = containerItemInfo;

// Create parse request
let request = new groupdocs_parser_cloud.ParseRequest(options);

// Create request
let response = await parseApi.parse(request);

// Display output
response.fieldsData.forEach(data => {
  if (data.pageArea.pageTextArea != null) {
    console.log("Field name: " + data.name + ". Text :" + data.pageArea.pageTextArea.text);
  }

  if (data.pageArea.pageTableArea != null) {
    console.log("Table name: " + data.name);

    data.pageArea.pageTableArea.pageTableAreaCells.forEach(cell => {
      console.log("Table cell. Row " + cell.rowIndex + " column " + cell.columnIndex + ". Text: " + cell.pageArea.pageTextArea.text);
    });
  }
});

## ExtractDataFromPDF_NodeJs_Template.json
{
  "Fields": [
    {
      "FieldName": "Address",
      "FieldPosition": {
        "FieldPositionType": "Regex",
        "Regex": "Companyaddress:"
      }
    },
    {
      "FieldName": "CompanyAddress",
      "FieldPosition": {
        "FieldPositionType": "Linked",
        "LinkedFieldName": "ADDRESS",
        "IsRightLinked": true,
        "SearchArea": {
          "Height": 10.0,
          "Width": 100.0
        },
        "AutoScale": true
      }
    },
    {
      "FieldName": "Company",
      "FieldPosition": {
        "FieldPositionType": "Regex",
        "Regex": "Companyname:"
      }
    },
    {
      "FieldName": "CompanyName",
      "FieldPosition": {
        "FieldPositionType": "Linked",
        "LinkedFieldName": "Company",
        "IsRightLinked": true,
        "SearchArea": {
          "Height": 10.0,
          "Width": 100.0
        },
        "AutoScale": true
      }
    }
  ],
  "Tables": [
    {
      "TableName": "Companies",
      "DetectorParameters": {
        "Rectangle": {
          "Position": {
            "X": 77.0,
            "Y": 279.0
          },
          "Size": {
            "Height": 41.0,
            "Width": 480.0
          }
        }
      }
    }
  ]
}

## ExtractDataFromPDF_NodeJs_Upload.js
// This code example demonstrates how to upload a PDF document to the cloud.
// Construct FileApi
let fileApi = groupdocs_parser_cloud.FileApi.fromConfig(configuration);
let file = 'C:\\Files\\companies.pdf';

// Read file
fs.readFile(file, (err, fileStream) => {
  // Upload file request
  let request = new groupdocs_parser_cloud.UploadFileRequest("companies.pdf", fileStream, myStorage);
  // Upload file
  fileApi.uploadFile(request);
});
	// This code example demonstrates how to add your client ID and Secret.
	global.clientId = "112f0f38-9dae-42d5-b4fc-cc84ae644972";
	global.clientSecret = "16ad3fe0bdc39c910f57d2fd48a5d618";

	global.myStorage = "";

	const configuration = new groupdocs_parser_cloud.Configuration(clientId, clientSecret);
	configuration.apiBaseUrl = "https://api.groupdocs.cloud";
	// This code example demonstrates a template object.
	let field1 = new groupdocs_parser_cloud.Field();
	field1.fieldName = "Address";
	let fieldPosition1 = new groupdocs_parser_cloud.FieldPosition();
	fieldPosition1.fieldPositionType = "Regex";
	fieldPosition1.regex = "Company address:";
	field1.fieldPosition = fieldPosition1;

	let field2 = new groupdocs_parser_cloud.Field();
	field2.fieldName = "CompanyAddress";
	let fieldPosition2 = new groupdocs_parser_cloud.FieldPosition();
	fieldPosition2.fieldPositionType = "Linked";
	fieldPosition2.linkedFieldName = "ADDRESS";
	fieldPosition2.isRightLinked = true;
	let size2 = new groupdocs_parser_cloud.Size();
	size2.width = 100;
	size2.height = 10;
	fieldPosition2.searchArea = size2;
	fieldPosition2.autoScale = true;
	field2.fieldPosition = fieldPosition2;

	let field3 = new groupdocs_parser_cloud.Field();
	field3.fieldName = "Company";
	let fieldPosition3 = new groupdocs_parser_cloud.FieldPosition();
	fieldPosition3.fieldPositionType = "Regex";
	fieldPosition3.regex = "Company name:";
	field3.fieldPosition = fieldPosition3;

	let field4 = new groupdocs_parser_cloud.Field();
	field4.fieldName = "CompanyName";
	let fieldPosition4 = new groupdocs_parser_cloud.FieldPosition();
	fieldPosition4.fieldPositionType = "Linked";
	fieldPosition4.linkedFieldName = "Company";
	fieldPosition4.isRightLinked = true;
	let size4 = new groupdocs_parser_cloud.Size();
	size4.width = 100;
	size4.height = 10;
	fieldPosition4.searchArea = size4;
	fieldPosition4.autoScale = true;
	field4.fieldPosition = fieldPosition4;

	let table = new groupdocs_parser_cloud.Table();
	table.tableName = "Companies";
	let detectorparams = new groupdocs_parser_cloud.DetectorParameters();
	let rect = new groupdocs_parser_cloud.Rectangle();
	let size = new groupdocs_parser_cloud.Size();
	size.height = 60;
	size.width = 480;
	let position = new groupdocs_parser_cloud.Point();
	position.x = 77;
	position.y = 279;
	rect.size = size;
	rect.position = position;
	detectorparams.rectangle = rect;
	table.detectorParameters = detectorparams;

	let fields = [field1, field2, field3, field4];
	let tables = [table];
	let template = new groupdocs_parser_cloud.Template();
	template.fields = fields;
	template.tables = tables;

	return template;
	// This code example demonstrates how to Parse a PDF document by a JSON based Template.
	// Create an instance of the API
	let parseApi = groupdocs_parser_cloud.ParseApi.fromConfig(configuration);

	// Input file path
	let fileInfo = new groupdocs_parser_cloud.FileInfo()
	fileInfo.filePath = "companies.pdf"

	// Create Parse options
	let options = new groupdocs_parser_cloud.ParseOptions();
	options.fileInfo = fileInfo;
	options.templatePath = "template.json";

	// Create Parse request
	let request = new groupdocs_parser_cloud.ParseRequest(options);

	// Parse the document
	let response = await parseApi.parse(request);

	// Display output
	response.fieldsData.forEach(data => {
	if (data.pageArea.pageTextArea != null) {
	console.log("Field name: " + data.name + ". Text :" + data.pageArea.pageTextArea.text);
	}

	if (data.pageArea.pageTableArea != null) {
	console.log("Table name: " + data.name);

	data.pageArea.pageTableArea.pageTableAreaCells.forEach(cell => {
	console.log("Table cell. Row " + cell.rowIndex + " column " + cell.columnIndex + ". Text: " + cell.pageArea.pageTextArea.text);
	});
	}
	});
	// This code example demonstrates how to Parse a PDF document by Template object.
	// Api initialization
	let parseApi = groupdocs_parser_cloud.ParseApi.fromConfig(configuration);

	// Input file
	let fileInfo = new groupdocs_parser_cloud.FileInfo();
	fileInfo.filePath = "companies.pdf";

	// Define parse options
	let options = new groupdocs_parser_cloud.ParseOptions();
	options.fileInfo = fileInfo;

	// Get Template Object
	options.template = GetTemplate();

	// Create parse request
	let request = new groupdocs_parser_cloud.ParseRequest(options);
	// Pasrse the document
	let result = await parseApi.parse(request);

	// Show Results
	result.fieldsData.forEach(data => {
	if (data.pageArea.pageTextArea != null) {
	console.log("Field name: " + data.name + ". Text :" + data.pageArea.pageTextArea.text);
	}

	if (data.pageArea.pageTableArea != null) {
	console.log("Table name: " + data.name);

	data.pageArea.pageTableArea.pageTableAreaCells.forEach(cell => {
	console.log("Table cell. Row " + cell.rowIndex + " column " + cell.columnIndex + ". Text: " + cell.pageArea.pageTextArea.text);
	});
	}
	});
	{
	"Fields": [
	{
	"FieldName": "Address",
	"FieldPosition": {
	"FieldPositionType": "Regex",
	"Regex": "Companyaddress:"
	}
	},
	{
	"FieldName": "CompanyAddress",
	"FieldPosition": {
	"FieldPositionType": "Linked",
	"LinkedFieldName": "ADDRESS",
	"IsRightLinked": true,
	"SearchArea": {
	"Height": 10.0,
	"Width": 100.0
	},
	"AutoScale": true
	}
	},
	{
	"FieldName": "Company",
	"FieldPosition": {
	"FieldPositionType": "Regex",
	"Regex": "Companyname:"
	}
	},
	{
	"FieldName": "CompanyName",
	"FieldPosition": {
	"FieldPositionType": "Linked",
	"LinkedFieldName": "Company",
	"IsRightLinked": true,
	"SearchArea": {
	"Height": 10.0,
	"Width": 100.0
	},
	"AutoScale": true
	}
	}
	],
	"Tables": [
	{
	"TableName": "Companies",
	"DetectorParameters": {
	"Rectangle": {
	"Position": {
	"X": 77.0,
	"Y": 279.0
	},
	"Size": {
	"Height": 41.0,
	"Width": 480.0
	}
	}
	}
	}
	]
	}
	// This code example demonstrates how to upload a PDF document to the cloud.
	// Construct FileApi
	let fileApi = groupdocs_parser_cloud.FileApi.fromConfig(configuration);
	let file = 'C:\\Files\\companies.pdf';

	// Read file
	fs.readFile(file, (err, fileStream) => {
	// Upload file request
	let request = new groupdocs_parser_cloud.UploadFileRequest("companies.pdf", fileStream, myStorage);
	// Upload file
	fileApi.uploadFile(request);
	});