The Ruby OCR SDK supports the Energy Bill API.

Using the sample below, we are going to illustrate how to extract the data that we want using the OCR SDK.
Energy Bill sample

Quick-Start

require 'mindee'

# Init a new client
mindee_client = Mindee::Client.new(api_key: 'my-api-key')

# Load a file from disk
input_source = mindee_client.source_from_path('/path/to/the/file.ext')

# Parse the file
result = mindee_client.enqueue_and_parse(
  input_source,
  Mindee::Product::FR::EnergyBill::EnergyBillV1
)

# Print a full summary of the parsed data in RST format
puts result.document

# Print the document-level parsed data
# puts result.document.inference.prediction

Output (RST):

########
Document
########
:Mindee ID: 17f0ccef-e3fe-4a28-838d-d704489d6ce7
:Filename: default_sample.pdf

Inference
#########
:Product: mindee/energy_bill_fra v1.0
:Rotation applied: No

Prediction
==========
:Invoice Number: 10123590373
:Contract ID: 1234567890
:Delivery Point: 98765432109876
:Invoice Date: 2021-01-29
:Due Date: 2021-02-15
:Total Before Taxes: 1241.03
:Total Taxes: 238.82
:Total Amount: 1479.85
:Energy Supplier:
  :Address: TSA 12345, 12345 DEMOCITY CEDEX, 75001 PARIS
  :Name: EDF
:Energy Consumer:
  :Address: 12 AVENUE DES RÊVES, RDC A 123 COUR FAUSSE A, 75000 PARIS
  :Name: John Doe
:Subscription:
  +--------------------------------------+------------+------------+----------+-----------+------------+
  | Description                          | End Date   | Start Date | Tax Rate | Total     | Unit Price |
  +======================================+============+============+==========+===========+============+
  | Abonnement électricité               | 2021-02-28 | 2021-01-01 | 5.50     | 59.00     | 29.50      |
  +--------------------------------------+------------+------------+----------+-----------+------------+
:Energy Usage:
  +--------------------------------------+------------+------------+----------+-----------+------------+
  | Description                          | End Date   | Start Date | Tax Rate | Total     | Unit Price |
  +======================================+============+============+==========+===========+============+
  | Consommation (HT)                    | 2021-01-27 | 2020-11-28 | 20.00    | 898.43    | 10.47      |
  +--------------------------------------+------------+------------+----------+-----------+------------+
:Taxes and Contributions:
  +--------------------------------------+------------+------------+----------+-----------+------------+
  | Description                          | End Date   | Start Date | Tax Rate | Total     | Unit Price |
  +======================================+============+============+==========+===========+============+
  | Contribution au Service Public de... | 2021-01-27 | 2020-11-28 | 20.00    | 193.07    | 2.25       |
  +--------------------------------------+------------+------------+----------+-----------+------------+
  | Départementale sur la Conso Final... | 2020-12-31 | 2020-11-28 | 20.00    | 13.98     | 0.3315     |
  +--------------------------------------+------------+------------+----------+-----------+------------+
  | Communale sur la Conso Finale Ele... | 2021-01-27 | 2021-01-01 | 20.00    | 28.56     | 0.6545     |
  +--------------------------------------+------------+------------+----------+-----------+------------+
  | Contribution Tarifaire d'Achemine... | 2020-12-31 | 2020-11-28 | 20.00    | 27.96     | 0.663      |
  +--------------------------------------+------------+------------+----------+-----------+------------+
:Meter Details:
  :Meter Number: 620
  :Meter Type: electricity
  :Unit of Measure: kWh

Field Types

Standard Fields

These fields are generic and used in several products.

Basic Field

Each prediction object contains a set of fields that inherit from the generic Field class.
A typical Field object will have the following attributes:

value (String, Float, Integer, Boolean): corresponds to the field value. Can be nil if no value was extracted.
confidence (Float, nil): the confidence score of the field prediction.
bounding_box (Mindee::Geometry::Quadrilateral, nil): contains exactly 4 relative vertices (points) coordinates of a right rectangle containing the field in the document.
polygon (Mindee::Geometry::Polygon, nil): contains the relative vertices coordinates (Point) of a polygon containing the field in the image.
page_id (Integer, nil): the ID of the page, always nil when at document-level.
reconstructed (Boolean): indicates whether an object was reconstructed (not extracted as the API gave it).

Aside from the previous attributes, all basic fields have access to a to_s method that can be used to print their value as a string.

Amount Field

The amount field AmountField only has one constraint: its value is a Float (or nil).

Date Field

Aside from the basic Field attributes, the date field DateField also implements the following:

date_object (Date): an accessible representation of the value as a JavaScript object.

String Field

The text field StringField only has one constraint: it's value is a String (or nil).

Specific Fields

Fields which are specific to this product; they are not used in any other product.

Energy Consumer Field

The entity that consumes the energy.

A EnergyBillV1EnergyConsumer implements the following attributes:

address (String): The address of the energy consumer.
name (String): The name of the energy consumer.
Fields which are specific to this product; they are not used in any other product.

Energy Supplier Field

The company that supplies the energy.

A EnergyBillV1EnergySupplier implements the following attributes:

address (String): The address of the energy supplier.
name (String): The name of the energy supplier.
Fields which are specific to this product; they are not used in any other product.

Energy Usage Field

Details of energy consumption.

A EnergyBillV1EnergyUsage implements the following attributes:

description (String): Description or details of the energy usage.
end_date (String): The end date of the energy usage.
start_date (String): The start date of the energy usage.
tax_rate (Float): The rate of tax applied to the total cost.
total (Float): The total cost of energy consumed.
unit_price (Float): The price per unit of energy consumed.
Fields which are specific to this product; they are not used in any other product.

Meter Details Field

Information about the energy meter.

A EnergyBillV1MeterDetail implements the following attributes:

meter_number (String): The unique identifier of the energy meter.
meter_type (String): The type of energy meter.

Possible values include:

electricity
gas
water
None

unit (String): The unit of measurement for energy consumption, which can be kW, m³, or L.
Fields which are specific to this product; they are not used in any other product.

Subscription Field

The subscription details fee for the energy service.

A EnergyBillV1Subscription implements the following attributes:

description (String): Description or details of the subscription.
end_date (String): The end date of the subscription.
start_date (String): The start date of the subscription.
tax_rate (Float): The rate of tax applied to the total cost.
total (Float): The total cost of subscription.
unit_price (Float): The price per unit of subscription.
Fields which are specific to this product; they are not used in any other product.

Taxes and Contributions Field

Details of Taxes and Contributions.

A EnergyBillV1TaxesAndContribution implements the following attributes:

description (String): Description or details of the Taxes and Contributions.
end_date (String): The end date of the Taxes and Contributions.
start_date (String): The start date of the Taxes and Contributions.
tax_rate (Float): The rate of tax applied to the total cost.
total (Float): The total cost of Taxes and Contributions.
unit_price (Float): The price per unit of Taxes and Contributions.

Attributes

The following fields are extracted for Energy Bill V1:

Contract ID

contract_id (StringField): The unique identifier associated with a specific contract.

puts result.document.inference.prediction.contract_id.value

Delivery Point

delivery_point (StringField): The unique identifier assigned to each electricity or gas consumption point. It specifies the exact location where the energy is delivered.

puts result.document.inference.prediction.delivery_point.value

Due Date

due_date (DateField): The date by which the payment for the energy invoice is due.

puts result.document.inference.prediction.due_date.value

Energy Consumer

energy_consumer (EnergyBillV1EnergyConsumer): The entity that consumes the energy.

puts result.document.inference.prediction.energy_consumer.value

Energy Supplier

energy_supplier (EnergyBillV1EnergySupplier): The company that supplies the energy.

puts result.document.inference.prediction.energy_supplier.value

Energy Usage

energy_usage (Array<EnergyBillV1EnergyUsage>): Details of energy consumption.

for energy_usage_elem in result.document.inference.prediction.energy_usage do
  puts energy_usage_elem.value
end

Invoice Date

invoice_date (DateField): The date when the energy invoice was issued.

puts result.document.inference.prediction.invoice_date.value

Invoice Number

invoice_number (StringField): The unique identifier of the energy invoice.

puts result.document.inference.prediction.invoice_number.value

Meter Details

meter_details (EnergyBillV1MeterDetail): Information about the energy meter.

puts result.document.inference.prediction.meter_details.value

Subscription

subscription (Array<EnergyBillV1Subscription>): The subscription details fee for the energy service.

for subscription_elem in result.document.inference.prediction.subscription do
  puts subscription_elem.value
end

Taxes and Contributions

taxes_and_contributions (Array<EnergyBillV1TaxesAndContribution>): Details of Taxes and Contributions.

for taxes_and_contributions_elem in result.document.inference.prediction.taxes_and_contributions do
  puts taxes_and_contributions_elem.value
end

Total Amount

total_amount (AmountField): The total amount to be paid for the energy invoice.

puts result.document.inference.prediction.total_amount.value

Total Before Taxes

total_before_taxes (AmountField): The total amount to be paid for the energy invoice before taxes.

puts result.document.inference.prediction.total_before_taxes.value

Total Taxes

total_taxes (AmountField): Total of taxes applied to the invoice.

puts result.document.inference.prediction.total_taxes.value

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