Request
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-acme.pdf",
"url": "https://example.com/invoices/invoice-acme.pdf"
},
{
"type": "url",
"name": "invoice-global-freight.pdf",
"url": "https://example.com/invoices/invoice-global-freight.pdf"
}
],
"schema": {
"fields": [
{
"name": "invoices",
"type": "ARRAY",
"description": "One entry per invoice file",
"fields": [
{
"name": "vendor_name",
"type": "TEXT",
"description": "Vendor or supplier name"
},
{
"name": "invoice_number",
"type": "TEXT",
"description": "Invoice reference number"
},
{
"name": "invoice_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": "TEXT",
"description": "Quantity ordered"
},
{
"name": "amount",
"type": "CURRENCY_AMOUNT",
"description": "Line item amount"
}
]
},
{
"name": "total_amount",
"type": "CURRENCY_AMOUNT",
"description": "Total invoice amount"
}
]
}
]
}
}'Response
{
"success": true,
"data": {
"invoices": {
"value": [
{
"vendor_name": {
"value": "Acme Office Supplies Ltd.",
"confidence": 0.97,
"citations": ["Acme Office Supplies Ltd."],
"source": "invoice-acme.pdf"
},
"invoice_number": {
"value": "INV-2026-0041",
"confidence": 0.99,
"citations": ["Invoice #INV-2026-0041"],
"source": "invoice-acme.pdf"
},
"invoice_date": {
"value": "2026-03-01",
"confidence": 0.98,
"citations": ["Date: March 1, 2026"],
"source": "invoice-acme.pdf"
},
"line_items": {
"value": [
{
"description": {
"value": "Ergonomic Desk Chair",
"confidence": 0.96,
"citations": ["Ergonomic Desk Chair"]
},
"quantity": {
"value": "2",
"confidence": 0.98,
"citations": ["Qty: 2"]
},
"amount": {
"value": {
"amount": "699.98",
"currency": "USD"
},
"confidence": 0.97,
"citations": ["$699.98"]
}
},
{
"description": {
"value": "Standing Desk Converter",
"confidence": 0.95,
"citations": ["Standing Desk Converter"]
},
"quantity": {
"value": "1",
"confidence": 0.99,
"citations": ["Qty: 1"]
},
"amount": {
"value": {
"amount": "189.00",
"currency": "USD"
},
"confidence": 0.96,
"citations": ["$189.00"]
}
}
],
"confidence": 0.96,
"citations": []
},
"total_amount": {
"value": {
"amount": "888.98",
"currency": "USD"
},
"confidence": 0.98,
"citations": ["Total Due: $888.98"],
"source": "invoice-acme.pdf"
}
},
{
"vendor_name": {
"value": "Global Freight Solutions",
"confidence": 0.96,
"citations": ["Global Freight Solutions"],
"source": "invoice-global-freight.pdf"
},
"invoice_number": {
"value": "GFS-90215",
"confidence": 0.99,
"citations": ["Invoice No. GFS-90215"],
"source": "invoice-global-freight.pdf"
},
"invoice_date": {
"value": "2026-03-03",
"confidence": 0.97,
"citations": ["Date: 03/03/2026"],
"source": "invoice-global-freight.pdf"
},
"line_items": {
"value": [
{
"description": {
"value": "Overnight Parcel Shipping (5 kg)",
"confidence": 0.94,
"citations": ["Overnight Parcel Shipping (5 kg)"]
},
"quantity": {
"value": "3",
"confidence": 0.98,
"citations": ["Qty: 3"]
},
"amount": {
"value": {
"amount": "134.85",
"currency": "USD"
},
"confidence": 0.95,
"citations": ["$134.85"]
}
},
{
"description": {
"value": "Pallet Freight (LTL, 200 kg)",
"confidence": 0.93,
"citations": ["Pallet Freight (LTL, 200 kg)"]
},
"quantity": {
"value": "1",
"confidence": 0.99,
"citations": ["Qty: 1"]
},
"amount": {
"value": {
"amount": "420.00",
"currency": "USD"
},
"confidence": 0.96,
"citations": ["$420.00"]
}
}
],
"confidence": 0.95,
"citations": []
},
"total_amount": {
"value": {
"amount": "554.85",
"currency": "USD"
},
"confidence": 0.97,
"citations": ["Total: $554.85"],
"source": "invoice-global-freight.pdf"
}
}
],
"confidence": 0.96,
"citations": []
}
}
}Request
import { IterationLayer } from "iterationlayer";
const client = new IterationLayer({ apiKey: "YOUR_API_KEY" });
const result = await client.extract({
files: [
{
type: "url",
name: "invoice-acme.pdf",
url: "https://example.com/invoices/invoice-acme.pdf",
},
{
type: "url",
name: "invoice-global-freight.pdf",
url: "https://example.com/invoices/invoice-global-freight.pdf",
},
],
schema: {
fields: [
{
name: "invoices",
type: "ARRAY",
description: "One entry per invoice file",
fields: [
{
name: "vendor_name",
type: "TEXT",
description: "Vendor or supplier name",
},
{
name: "invoice_number",
type: "TEXT",
description: "Invoice reference number",
},
{
name: "invoice_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: "TEXT",
description: "Quantity ordered",
},
{
name: "amount",
type: "CURRENCY_AMOUNT",
description: "Line item amount",
},
],
},
{
name: "total_amount",
type: "CURRENCY_AMOUNT",
description: "Total invoice amount",
},
],
},
],
},
});
console.log(result);Response
{
"success": true,
"data": {
"invoices": {
"value": [
{
"vendor_name": {
"value": "Acme Office Supplies Ltd.",
"confidence": 0.97,
"citations": ["Acme Office Supplies Ltd."],
"source": "invoice-acme.pdf"
},
"invoice_number": {
"value": "INV-2026-0041",
"confidence": 0.99,
"citations": ["Invoice #INV-2026-0041"],
"source": "invoice-acme.pdf"
},
"invoice_date": {
"value": "2026-03-01",
"confidence": 0.98,
"citations": ["Date: March 1, 2026"],
"source": "invoice-acme.pdf"
},
"line_items": {
"value": [
{
"description": {
"value": "Ergonomic Desk Chair",
"confidence": 0.96,
"citations": ["Ergonomic Desk Chair"]
},
"quantity": {
"value": "2",
"confidence": 0.98,
"citations": ["Qty: 2"]
},
"amount": {
"value": {
"amount": "699.98",
"currency": "USD"
},
"confidence": 0.97,
"citations": ["$699.98"]
}
},
{
"description": {
"value": "Standing Desk Converter",
"confidence": 0.95,
"citations": ["Standing Desk Converter"]
},
"quantity": {
"value": "1",
"confidence": 0.99,
"citations": ["Qty: 1"]
},
"amount": {
"value": {
"amount": "189.00",
"currency": "USD"
},
"confidence": 0.96,
"citations": ["$189.00"]
}
}
],
"confidence": 0.96,
"citations": []
},
"total_amount": {
"value": {
"amount": "888.98",
"currency": "USD"
},
"confidence": 0.98,
"citations": ["Total Due: $888.98"],
"source": "invoice-acme.pdf"
}
},
{
"vendor_name": {
"value": "Global Freight Solutions",
"confidence": 0.96,
"citations": ["Global Freight Solutions"],
"source": "invoice-global-freight.pdf"
},
"invoice_number": {
"value": "GFS-90215",
"confidence": 0.99,
"citations": ["Invoice No. GFS-90215"],
"source": "invoice-global-freight.pdf"
},
"invoice_date": {
"value": "2026-03-03",
"confidence": 0.97,
"citations": ["Date: 03/03/2026"],
"source": "invoice-global-freight.pdf"
},
"line_items": {
"value": [
{
"description": {
"value": "Overnight Parcel Shipping (5 kg)",
"confidence": 0.94,
"citations": ["Overnight Parcel Shipping (5 kg)"]
},
"quantity": {
"value": "3",
"confidence": 0.98,
"citations": ["Qty: 3"]
},
"amount": {
"value": {
"amount": "134.85",
"currency": "USD"
},
"confidence": 0.95,
"citations": ["$134.85"]
}
},
{
"description": {
"value": "Pallet Freight (LTL, 200 kg)",
"confidence": 0.93,
"citations": ["Pallet Freight (LTL, 200 kg)"]
},
"quantity": {
"value": "1",
"confidence": 0.99,
"citations": ["Qty: 1"]
},
"amount": {
"value": {
"amount": "420.00",
"currency": "USD"
},
"confidence": 0.96,
"citations": ["$420.00"]
}
}
],
"confidence": 0.95,
"citations": []
},
"total_amount": {
"value": {
"amount": "554.85",
"currency": "USD"
},
"confidence": 0.97,
"citations": ["Total: $554.85"],
"source": "invoice-global-freight.pdf"
}
}
],
"confidence": 0.96,
"citations": []
}
}
}Request
from iterationlayer import IterationLayer
client = IterationLayer(api_key="YOUR_API_KEY")
result = client.extract(
files=[
{
"type": "url",
"name": "invoice-acme.pdf",
"url": "https://example.com/invoices/invoice-acme.pdf",
},
{
"type": "url",
"name": "invoice-global-freight.pdf",
"url": "https://example.com/invoices/invoice-global-freight.pdf",
},
],
schema={
"fields": [
{
"name": "invoices",
"type": "ARRAY",
"description": "One entry per invoice file",
"fields": [
{
"name": "vendor_name",
"type": "TEXT",
"description": "Vendor or supplier name",
},
{
"name": "invoice_number",
"type": "TEXT",
"description": "Invoice reference number",
},
{
"name": "invoice_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": "TEXT",
"description": "Quantity ordered",
},
{
"name": "amount",
"type": "CURRENCY_AMOUNT",
"description": "Line item amount",
},
],
},
{
"name": "total_amount",
"type": "CURRENCY_AMOUNT",
"description": "Total invoice amount",
},
],
},
]
},
)
print(result)Response
{
"success": true,
"data": {
"invoices": {
"value": [
{
"vendor_name": {
"value": "Acme Office Supplies Ltd.",
"confidence": 0.97,
"citations": ["Acme Office Supplies Ltd."],
"source": "invoice-acme.pdf"
},
"invoice_number": {
"value": "INV-2026-0041",
"confidence": 0.99,
"citations": ["Invoice #INV-2026-0041"],
"source": "invoice-acme.pdf"
},
"invoice_date": {
"value": "2026-03-01",
"confidence": 0.98,
"citations": ["Date: March 1, 2026"],
"source": "invoice-acme.pdf"
},
"line_items": {
"value": [
{
"description": {
"value": "Ergonomic Desk Chair",
"confidence": 0.96,
"citations": ["Ergonomic Desk Chair"]
},
"quantity": {
"value": "2",
"confidence": 0.98,
"citations": ["Qty: 2"]
},
"amount": {
"value": {
"amount": "699.98",
"currency": "USD"
},
"confidence": 0.97,
"citations": ["$699.98"]
}
},
{
"description": {
"value": "Standing Desk Converter",
"confidence": 0.95,
"citations": ["Standing Desk Converter"]
},
"quantity": {
"value": "1",
"confidence": 0.99,
"citations": ["Qty: 1"]
},
"amount": {
"value": {
"amount": "189.00",
"currency": "USD"
},
"confidence": 0.96,
"citations": ["$189.00"]
}
}
],
"confidence": 0.96,
"citations": []
},
"total_amount": {
"value": {
"amount": "888.98",
"currency": "USD"
},
"confidence": 0.98,
"citations": ["Total Due: $888.98"],
"source": "invoice-acme.pdf"
}
},
{
"vendor_name": {
"value": "Global Freight Solutions",
"confidence": 0.96,
"citations": ["Global Freight Solutions"],
"source": "invoice-global-freight.pdf"
},
"invoice_number": {
"value": "GFS-90215",
"confidence": 0.99,
"citations": ["Invoice No. GFS-90215"],
"source": "invoice-global-freight.pdf"
},
"invoice_date": {
"value": "2026-03-03",
"confidence": 0.97,
"citations": ["Date: 03/03/2026"],
"source": "invoice-global-freight.pdf"
},
"line_items": {
"value": [
{
"description": {
"value": "Overnight Parcel Shipping (5 kg)",
"confidence": 0.94,
"citations": ["Overnight Parcel Shipping (5 kg)"]
},
"quantity": {
"value": "3",
"confidence": 0.98,
"citations": ["Qty: 3"]
},
"amount": {
"value": {
"amount": "134.85",
"currency": "USD"
},
"confidence": 0.95,
"citations": ["$134.85"]
}
},
{
"description": {
"value": "Pallet Freight (LTL, 200 kg)",
"confidence": 0.93,
"citations": ["Pallet Freight (LTL, 200 kg)"]
},
"quantity": {
"value": "1",
"confidence": 0.99,
"citations": ["Qty: 1"]
},
"amount": {
"value": {
"amount": "420.00",
"currency": "USD"
},
"confidence": 0.96,
"citations": ["$420.00"]
}
}
],
"confidence": 0.95,
"citations": []
},
"total_amount": {
"value": {
"amount": "554.85",
"currency": "USD"
},
"confidence": 0.97,
"citations": ["Total: $554.85"],
"source": "invoice-global-freight.pdf"
}
}
],
"confidence": 0.96,
"citations": []
}
}
}Request
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-acme.pdf", "https://example.com/invoices/invoice-acme.pdf"),
il.NewFileFromURL("invoice-global-freight.pdf", "https://example.com/invoices/invoice-global-freight.pdf"),
},
Schema: il.ExtractionSchema{
"invoices": il.NewArrayFieldConfig(
"invoices",
"One entry per invoice file",
[]il.FieldConfig{
il.NewTextFieldConfig(
"vendor_name", "Vendor or supplier name",
),
il.NewTextFieldConfig(
"invoice_number", "Invoice reference number",
),
il.NewDateFieldConfig(
"invoice_date", "Invoice date",
),
il.NewArrayFieldConfig(
"line_items",
"Individual line items",
[]il.FieldConfig{
il.NewTextFieldConfig(
"description", "Item description",
),
il.NewTextFieldConfig(
"quantity", "Quantity ordered",
),
il.NewCurrencyAmountFieldConfig(
"amount", "Line item amount",
),
},
),
il.NewCurrencyAmountFieldConfig(
"total_amount", "Total invoice amount",
),
},
),
},
})Response
{
"success": true,
"data": {
"invoices": {
"value": [
{
"vendor_name": {
"value": "Acme Office Supplies Ltd.",
"confidence": 0.97,
"citations": ["Acme Office Supplies Ltd."],
"source": "invoice-acme.pdf"
},
"invoice_number": {
"value": "INV-2026-0041",
"confidence": 0.99,
"citations": ["Invoice #INV-2026-0041"],
"source": "invoice-acme.pdf"
},
"invoice_date": {
"value": "2026-03-01",
"confidence": 0.98,
"citations": ["Date: March 1, 2026"],
"source": "invoice-acme.pdf"
},
"line_items": {
"value": [
{
"description": {
"value": "Ergonomic Desk Chair",
"confidence": 0.96,
"citations": ["Ergonomic Desk Chair"]
},
"quantity": {
"value": "2",
"confidence": 0.98,
"citations": ["Qty: 2"]
},
"amount": {
"value": {
"amount": "699.98",
"currency": "USD"
},
"confidence": 0.97,
"citations": ["$699.98"]
}
},
{
"description": {
"value": "Standing Desk Converter",
"confidence": 0.95,
"citations": ["Standing Desk Converter"]
},
"quantity": {
"value": "1",
"confidence": 0.99,
"citations": ["Qty: 1"]
},
"amount": {
"value": {
"amount": "189.00",
"currency": "USD"
},
"confidence": 0.96,
"citations": ["$189.00"]
}
}
],
"confidence": 0.96,
"citations": []
},
"total_amount": {
"value": {
"amount": "888.98",
"currency": "USD"
},
"confidence": 0.98,
"citations": ["Total Due: $888.98"],
"source": "invoice-acme.pdf"
}
},
{
"vendor_name": {
"value": "Global Freight Solutions",
"confidence": 0.96,
"citations": ["Global Freight Solutions"],
"source": "invoice-global-freight.pdf"
},
"invoice_number": {
"value": "GFS-90215",
"confidence": 0.99,
"citations": ["Invoice No. GFS-90215"],
"source": "invoice-global-freight.pdf"
},
"invoice_date": {
"value": "2026-03-03",
"confidence": 0.97,
"citations": ["Date: 03/03/2026"],
"source": "invoice-global-freight.pdf"
},
"line_items": {
"value": [
{
"description": {
"value": "Overnight Parcel Shipping (5 kg)",
"confidence": 0.94,
"citations": ["Overnight Parcel Shipping (5 kg)"]
},
"quantity": {
"value": "3",
"confidence": 0.98,
"citations": ["Qty: 3"]
},
"amount": {
"value": {
"amount": "134.85",
"currency": "USD"
},
"confidence": 0.95,
"citations": ["$134.85"]
}
},
{
"description": {
"value": "Pallet Freight (LTL, 200 kg)",
"confidence": 0.93,
"citations": ["Pallet Freight (LTL, 200 kg)"]
},
"quantity": {
"value": "1",
"confidence": 0.99,
"citations": ["Qty: 1"]
},
"amount": {
"value": {
"amount": "420.00",
"currency": "USD"
},
"confidence": 0.96,
"citations": ["$420.00"]
}
}
],
"confidence": 0.95,
"citations": []
},
"total_amount": {
"value": {
"amount": "554.85",
"currency": "USD"
},
"confidence": 0.97,
"citations": ["Total: $554.85"],
"source": "invoice-global-freight.pdf"
}
}
],
"confidence": 0.96,
"citations": []
}
}
}