Schema Definition

What is a schema?

A schema in Documind defines the structure of data to be extracted from a document. Think of it as a blueprint or template that guides the extraction process to retrieve the correct information in the desired format.

What can a schema do?

Schemas are used to:

Define the fields to extract.
Specify the type of data for each field (e.g., string, number, array, enum, boolean).
Set the relationships between fields (e.g., nested arrays or objects).

Defining a Schema

In Documind, a schema is defined as an array of objects, each representing a field to be extracted. Each field object includes the following properties:

name

string

required

A unique identifier for the field.

description

string

required

A brief explanation of what the field represents.

type

enum

required

The type of data. Options are: string, number, array, object, enum, boolean.

values

string[]

Used when the field type is enum, to specify available options.

children

object[]

Nested fields for array or object types.

Example Schema

Here’s an example schema for a bank statement:

Bank statement schema

const schema = [
  {
    name: "accountNumber",
    type: "string",
    description: "The account number of the bank statement."
  },
  {
    name: "openingBalance",
    type: "number",
    description: "The opening balance of the account."
  },
  {
    name: "transactions",
    type: "array",
    description: "List of transactions in the account.",
    children: [
      {
        name: "date",
        type: "string",
        description: "Transaction date."
      },
      {
        name: "creditAmount",
        type: "number",
        description: "Credit Amount of the transaction."
      },
      {
        name: "debitAmount",
        type: "number",
        description: "Debit Amount of the transaction."
      },
      {
        name: "description",
        type: "string",
        description: "Transaction description."
      }
    ]
  },
  {
    name: "closingBalance",
    type: "number",
    description: "The closing balance of the account."
  },
  {
    name: "highValueAccount",
    type: "boolean",
    description: "Closing balance is more than 50000 ."
  },
  {
    name: "statementType",
    type: "enum",
    description: "The type of document",
    values: ["Current Account", "Savings Account"]
  }
]

Introduction

Guides

What is a schema?

What can a schema do?

Defining a Schema

Example Schema

​What is a schema?

​What can a schema do?

​Defining a Schema

​Example Schema

What is a schema?

What can a schema do?

Defining a Schema

Example Schema