flutter_nanonets_ocr

Package Overview

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flutter_nanonets_ocr is a Flutter package that simplifies integration of Nanonets' OCR API into Flutter applications. It abstracts complex API calls, enabling developers to extract text from images with minimal code. The package supports multiple platforms including Android, iOS, macOS, Windows, and Linux, making it ideal for cross-platform apps requiring document scanning or text recognition. With straightforward methods for image upload and result retrieval, it streamlines the implementation of OCR functionality without manual HTTP requests.

Use cases

Document scanning in mobile apps
Automated data entry from images
Text extraction from receipts and invoices
Cross-platform OCR integration
Real-time image text recognition

Key features

Easy API integration with Nanonets
Support for multiple platforms
Minimal boilerplate code
Asynchronous image processing
Built-in error handling

Suitable for

Developers building OCR-enabled Flutter apps
Applications needing automated text extraction
Teams using Nanonets OCR service
Cross-platform projects requiring image analysis
Startups prototyping document processing tools

Considerations

Requires valid Nanonets API key
Dependent on external API availability
May incur usage-based costs
Limited customization compared to direct API calls
Network connectivity required for OCR processing

Original README

Original README snapshot from the linked source repository. Visit the repository for the latest content.

Description

Nanonets provides an OCR service where we can create models, train them and use them for OCR predictions. This package is developed to make usage of Nanonets OCR api directly without having to write manual code for integrating it in your application.

Follow this blog for step by step integration of Nanonets OCR model in a Flutter application: Implementing Nanonets OCR in Flutter

flutter_nanonets_ocr: flutter_nanonets_ocr

Get started

Add dependency You can use the command to add flutter_nanonets_ocr as a dependency with the latest stable version:

   $ dart pub add flutter_nanonets_ocr

Or you can manually add flutter_nanonets_ocr into the dependencies section in your pubspec.yaml:

  dependencies:
      flutter_nanonets_ocr: ^0.0.14

Example

Fetching details using document file

 import 'package:flutter_nanonets_ocr/flutter_nanonets_ocr.dart';
  
 String apiKey = "INSERT NANONETS API KEY";

 NanonetsOCR nanonetsOCR = NanonetsOCR();

 FutureBuilder(
            future: nanonetsOCR.predictDocumentFile(apiKey, docImage,
                    "INSERT OCR MODEL ID HERE", context),
            builder: (context, snapshot) {
              if (snapshot.connectionState == ConnectionState.active) {
                return loadingWidget();
              } else if (snapshot.connectionState == ConnectionState.done) {
                return yourSuccessWidget();
              } else {
                return loadingWidget();
              }
            });

Fetching details using document url

 import 'package:flutter_nanonets_ocr/flutter_nanonets_ocr.dart';
  
 String apiKey = "INSERT NANONETS API KEY";

 NanonetsOCR nanonetsOCR = NanonetsOCR();

 FutureBuilder(
            future: nanonetsOCR.predictDocumentURL(apiKey, docImageUrl,
                    "INSERT OCR MODEL ID HERE", context),
            builder: (context, snapshot) {
              if (snapshot.connectionState == ConnectionState.active) {
                return loadingWidget();
              } else if (snapshot.connectionState == ConnectionState.done) {
                return yourSuccessWidget();
              } else {
                return loadingWidget();
              }
            });

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