The Ruby Client Library supports the US Mail API.

📝

Product Specs

Specification	Details
Endpoint Name	us_mail
Recommended Version	v3.0
Supports Polling/Webhooks	✔️ Yes
Support Synchronous HTTP Calls	❌ No
Geography	🇺🇸 United States

🔐

Polling Limitations

Setting	Parameter name	Default Value
Initial Delay Before Polling	initial_delay_seconds	2 seconds
Default Delay Between Calls	delay_sec	1.5 seconds
Polling Attempts Before Timeout	max_retries	80 retries

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::UsMail::UsMailV3
)

# 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: f9c36f59-977d-4ddc-9f2d-31c294c456ac
:Filename: default_sample.jpg

Inference
#########
:Product: mindee/us_mail v3.0
:Rotation applied: Yes

Prediction
==========
:Sender Name: company zed
:Sender Address:
  :City: Dallas
  :Complete Address: 54321 Elm Street, Dallas, Texas 54321
  :Postal Code: 54321
  :State: TX
  :Street: 54321 Elm Street
:Recipient Names: Jane Doe
:Recipient Addresses:
  +-----------------+-------------------------------------+-------------------+-------------+------------------------+-------+---------------------------+-----------------+
  | City            | Complete Address                    | Is Address Change | Postal Code | Private Mailbox Number | State | Street                    | Unit            |
  +=================+=====================================+===================+=============+========================+=======+===========================+=================+
  | Detroit         | 1234 Market Street PMB 4321, Det... | False             | 12345       | 4321                   | MI    | 1234 Market Street        |                 |
  +-----------------+-------------------------------------+-------------------+-------------+------------------------+-------+---------------------------+-----------------+
:Return to Sender: False

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.

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.

Sender Address Field

The address of the sender.

A UsMailV3SenderAddress implements the following attributes:

• city (String): The city of the sender's address.
• complete (String): The complete address of the sender.
• postal_code (String): The postal code of the sender's address.
• state (String): Second part of the ISO 3166-2 code, consisting of two letters indicating the US State.
• street (String): The street of the sender's address.
  Fields which are specific to this product; they are not used in any other product.

Recipient Addresses Field

The addresses of the recipients.

A UsMailV3RecipientAddress implements the following attributes:

• city (String): The city of the recipient's address.
• complete (String): The complete address of the recipient.
• is_address_change (bool): Indicates if the recipient's address is a change of address.
• postal_code (String): The postal code of the recipient's address.
• private_mailbox_number (String): The private mailbox number of the recipient's address.
• state (String): Second part of the ISO 3166-2 code, consisting of two letters indicating the US State.
• street (String): The street of the recipient's address.
• unit (String): The unit number of the recipient's address.

Attributes

The following fields are extracted for US Mail V3:

Return to Sender

is_return_to_sender (BooleanField): Whether the mailing is marked as return to sender.

puts result.document.inference.prediction.is_return_to_sender.value

Recipient Addresses

recipient_addresses (Array<UsMailV3RecipientAddress>): The addresses of the recipients.

result.document.inference.prediction.recipient_addresses do |recipient_addresses_elem|
  puts recipient_addresses_elem.value
end

Recipient Names

recipient_names (Array<StringField>): The names of the recipients.

result.document.inference.prediction.recipient_names do |recipient_names_elem|
  puts recipient_names_elem.value
end

Sender Address

sender_address (UsMailV3SenderAddress): The address of the sender.

puts result.document.inference.prediction.sender_address.value

Sender Name

sender_name (StringField): The name of the sender.

puts result.document.inference.prediction.sender_name.value

Questions?

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