The Ruby Client Library supports the Bank Check API.

📝

Product Specs

Specification	Details
Endpoint Name	bank_check
Recommended Version	v1.1
Supports Polling/Webhooks	❌ No
Support Synchronous HTTP Calls	✔️ Yes
Geography	🇺🇸 United States

Using the sample below,
we are going to illustrate how to extract the data that we want using the Ruby Client Library.

Quick-Start

#
# Install the Ruby client library by running:
# gem install mindee
#

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.parse(
  input_source,
  Mindee::Product::US::BankCheck::BankCheckV1
)

# 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: b9809586-57ae-4f84-a35d-a85b2be1f2a2
:Filename: default_sample.jpg

Inference
#########
:Product: mindee/bank_check v1.0
:Rotation applied: Yes

Prediction
==========
:Check Issue Date: 2022-03-29
:Amount: 15332.90
:Payees: JOHN DOE
         JANE DOE
:Routing Number:
:Account Number: 7789778136
:Check Number: 0003401

Page Predictions
================

Page 0
------
:Check Position: Polygon with 21 points.
:Signature Positions: Polygon with 6 points.
:Check Issue Date: 2022-03-29
:Amount: 15332.90
:Payees: JOHN DOE
         JANE DOE
:Routing Number:
:Account Number: 7789778136
:Check Number: 0003401

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, bool): 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 (bool): 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.

Position Field

The position field PositionField does not implement all the basic Field attributes, only bounding_box,
polygon and page_id. On top of these, it has access to:

• rectangle (Mindee::Geometry::Quadrilateral): a Polygon with four points that may be oriented (even beyond
  canvas).
• quadrangle (Mindee::Geometry::Quadrilateral): a free polygon made up of four points.

String Field

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

Page-Level Fields

Some fields are constrained to the page level, and so will not be retrievable at document level.

Attributes

The following fields are extracted for Bank Check V1:

Account Number

account_number (StringField): The check payer's account number.

puts result.document.inference.prediction.account_number.value

Amount

amount (AmountField): The amount of the check.

puts result.document.inference.prediction.amount.value

Check Number

check_number (StringField): The issuer's check number.

puts result.document.inference.prediction.check_number.value

Check Position

📄check_position (PositionField): The position of the check on the document.

  result.document.check_position.each do |check_position_elem|
    puts check_position_elem.polygon
  end

Check Issue Date

date (DateField): The date the check was issued.

puts result.document.inference.prediction.date.value

Payees

payees (Array<StringField>): List of the check's payees (recipients).

result.document.inference.prediction.payees do |payees_elem|
  puts payees_elem.value
end

Routing Number

routing_number (StringField): The check issuer's routing number.

puts result.document.inference.prediction.routing_number.value

Signature Positions

📄signatures_positions (Array<PositionField>): List of signature positions

  result.document.inference.pages do |page|
    page.prediction.signatures_positions do |signatures_positions_elem|
      puts signatures_positions_elem.polygon.to_s
    puts signatures_positions_elem.quadrangle.to_s
    puts signatures_positions_elem.rectangle.to_s
    puts signatures_positions_elem.boundingBox.to_s
    end
  end

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