Automate Invoice Processing

curl -X POST https://api.iterationlayer.com/document-extraction/v1/extract \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "files": [
      {
        "type": "url",
        "name": "invoice.pdf",
        "url": "https://example.com/invoices/2026-001.pdf"
      }
    ],
    "schema": {
      "fields": [
        { "name": "vendor", "type": "TEXT", "description": "Vendor or supplier name" },
        { "name": "invoice_number", "type": "TEXT", "description": "Invoice reference number" },
        { "name": "date", "type": "DATE", "description": "Invoice date" },
        { "name": "line_items", "type": "ARRAY", "description": "Individual line items", "fields": [
          { "name": "description", "type": "TEXT", "description": "Item description" },
          { "name": "quantity", "type": "INTEGER", "description": "Quantity ordered" },
          { "name": "unit_price", "type": "CURRENCY_AMOUNT", "description": "Price per unit" }
        ]},
        { "name": "total_amount", "type": "CURRENCY_AMOUNT", "description": "Total invoice amount" }
      ]
    }
  }'

import { IterationLayer } from "iterationlayer";
const client = new IterationLayer({ apiKey: "YOUR_API_KEY" });

const result = await client.extract({
  files: [
    {
      type: "url",
      name: "invoice.pdf",
      url: "https://example.com/invoices/2026-001.pdf",
    },
  ],
  schema: {
    fields: [
      { name: "vendor", type: "TEXT", description: "Vendor or supplier name" },
      { name: "invoice_number", type: "TEXT", description: "Invoice reference number" },
      { name: "date", type: "DATE", description: "Invoice date" },
      { name: "line_items", type: "ARRAY", description: "Individual line items", fields: [
        { name: "description", type: "TEXT", description: "Item description" },
        { name: "quantity", type: "INTEGER", description: "Quantity ordered" },
        { name: "unit_price", type: "CURRENCY_AMOUNT", description: "Price per unit" },
      ]},
      { name: "total_amount", type: "CURRENCY_AMOUNT", description: "Total invoice amount" },
    ],
  },
});

console.log(result);

from iterationlayer import IterationLayer
client = IterationLayer(api_key="YOUR_API_KEY")

result = client.extract(
    files=[
        {
            "type": "url",
            "name": "invoice.pdf",
            "url": "https://example.com/invoices/2026-001.pdf",
        }
    ],
    schema={
        "fields": [
            {"name": "vendor", "type": "TEXT", "description": "Vendor or supplier name"},
            {"name": "invoice_number", "type": "TEXT", "description": "Invoice reference number"},
            {"name": "date", "type": "DATE", "description": "Invoice date"},
            {"name": "line_items", "type": "ARRAY", "description": "Individual line items", "fields": [
                {"name": "description", "type": "TEXT", "description": "Item description"},
                {"name": "quantity", "type": "INTEGER", "description": "Quantity ordered"},
                {"name": "unit_price", "type": "CURRENCY_AMOUNT", "description": "Price per unit"},
            ]},
            {"name": "total_amount", "type": "CURRENCY_AMOUNT", "description": "Total invoice amount"},
        ]
    },
)

print(result)

package main

import il "github.com/iterationlayer/sdk-go"

client := il.NewClient("YOUR_API_KEY")

result, err := client.Extract(il.ExtractRequest{
    Files: []il.FileInput{
        il.NewFileFromURL("invoice.pdf", "https://example.com/invoices/2026-001.pdf"),
    },
    Schema: il.ExtractionSchema{
        "vendor":         il.NewTextFieldConfig("vendor", "Vendor or supplier name"),
        "invoice_number": il.NewTextFieldConfig("invoice_number", "Invoice reference number"),
        "date":           il.NewDateFieldConfig("date", "Invoice date"),
        "line_items": il.NewArrayFieldConfig("line_items", "Individual line items", []il.FieldConfig{
            il.NewTextFieldConfig("description", "Item description"),
            il.NewIntegerFieldConfig("quantity", "Quantity ordered"),
            il.NewCurrencyAmountFieldConfig("unit_price", "Price per unit"),
        }),
        "total_amount": il.NewCurrencyAmountFieldConfig("total_amount", "Total invoice amount"),
    },
})