ocr-cnh-2-json

OCR for Brazilian CNH (Drivers license) to JSON object.

Getting started

The simplest and fast-forward way to get started with this project in 2 steps is:

Build the docker container

docker build -t ocr-cnh .

It may take a while as the Dockerfile compile and install several OS native libraries to run the service.

Run the builded container

After waiting for the build, just run an instance of the container by executing:

docker run -it -d -p 8080:8080 ocr-cnh

You can check if the container is running accordingly by executing the docker ps. Any problems you may have you should take a look at the logs (docker logs {container_name_or_id})

Ready to go!

At this point you're ready to go. Just access http://localhost:8080 and you should see a nice and friendly form to test this service :)

Using the service

As said, this is a very simple service, with a even simpler use dynamic:

• You send (upload within a POST multipart/form-data request) the document (CNH) image;
• The service will return you a JSON with the document information (or not - depends on the quality of the document and image)

Usage example (in JavaScript)

The following code snippet examplifies how to use the API:

import fetch from 'fetch';

let formData = new FormData();
let fileField = document.querySelector('input[type="file"]');
let file = fileField.files[0]

if (!file) alert('ERROR: Select a file.')

formData.append('file', file);

try {
    const rawResponse = await fetch('/cnh.json', { method: 'POST', body: formData });
    const response = rawResponse.json();
    console.log(response);
} catch (error) {
    console.error(error);
}

This request shall return a JSON with the following format:

{
	"nome": "XXXXXXXXXXXXXXX",
	"cpf": "XXXXXXXX",
	"dt_nasc": "XXXXXXXX",
	"rg": "XXXXXXXX",
	"rg_emissor": "XXXXXXXX",
	"rg_uf": "XXXXXXXX",
	"numero": "XXXXXXXX",
	"cidade": "XXXXXXXX",
	"uf": "XXXXXXXX",
	"pai": "XXXXXXXX",
	"mae": "XXXXXXXX",
	"emissao": "XXXXXXXX",
	"validade": "XXXXXXXX",
	"avatar": "XXXXXXXX"
}

Contributors

Check out what and whom did which part of this project.