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.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"
}
]
}
}'Response
{
"success": true,
"data": {
"vendor": {
"value": "Acme Office Supplies Ltd.",
"confidence": 0.97,
"citations": ["Acme Office Supplies Ltd."]
},
"invoice_number": {
"value": "INV-2026-001",
"confidence": 0.99,
"citations": ["Invoice #INV-2026-001"]
},
"date": {
"value": "2026-01-15",
"confidence": 0.98,
"citations": ["Date: January 15, 2026"]
},
"line_items": {
"value": [
{
"description": {
"value": "Ergonomic Desk Chair",
"confidence": 0.96,
"citations": ["Ergonomic Desk Chair"]
},
"quantity": {
"value": 2,
"confidence": 0.98,
"citations": ["Qty: 2"]
},
"unit_price": {
"value": {
"amount": "349.99",
"currency": "USD"
},
"confidence": 0.97,
"citations": ["$349.99 each"]
}
},
{
"description": {
"value": "Standing Desk Converter",
"confidence": 0.95,
"citations": ["Standing Desk Converter"]
},
"quantity": {
"value": 1,
"confidence": 0.99,
"citations": ["Qty: 1"]
},
"unit_price": {
"value": {
"amount": "189.00",
"currency": "USD"
},
"confidence": 0.96,
"citations": ["$189.00 each"]
}
}
],
"confidence": 0.96,
"citations": []
},
"total_amount": {
"value": {
"amount": "888.98",
"currency": "USD"
},
"confidence": 0.98,
"citations": ["Total Due: $888.98"]
}
}
}Request
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);Response
{
"success": true,
"data": {
"vendor": {
"value": "Acme Office Supplies Ltd.",
"confidence": 0.97,
"citations": ["Acme Office Supplies Ltd."]
},
"invoice_number": {
"value": "INV-2026-001",
"confidence": 0.99,
"citations": ["Invoice #INV-2026-001"]
},
"date": {
"value": "2026-01-15",
"confidence": 0.98,
"citations": ["Date: January 15, 2026"]
},
"line_items": {
"value": [
{
"description": {
"value": "Ergonomic Desk Chair",
"confidence": 0.96,
"citations": ["Ergonomic Desk Chair"]
},
"quantity": {
"value": 2,
"confidence": 0.98,
"citations": ["Qty: 2"]
},
"unit_price": {
"value": {
"amount": "349.99",
"currency": "USD"
},
"confidence": 0.97,
"citations": ["$349.99 each"]
}
},
{
"description": {
"value": "Standing Desk Converter",
"confidence": 0.95,
"citations": ["Standing Desk Converter"]
},
"quantity": {
"value": 1,
"confidence": 0.99,
"citations": ["Qty: 1"]
},
"unit_price": {
"value": {
"amount": "189.00",
"currency": "USD"
},
"confidence": 0.96,
"citations": ["$189.00 each"]
}
}
],
"confidence": 0.96,
"citations": []
},
"total_amount": {
"value": {
"amount": "888.98",
"currency": "USD"
},
"confidence": 0.98,
"citations": ["Total Due: $888.98"]
}
}
}Request
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)Response
{
"success": true,
"data": {
"vendor": {
"value": "Acme Office Supplies Ltd.",
"confidence": 0.97,
"citations": ["Acme Office Supplies Ltd."]
},
"invoice_number": {
"value": "INV-2026-001",
"confidence": 0.99,
"citations": ["Invoice #INV-2026-001"]
},
"date": {
"value": "2026-01-15",
"confidence": 0.98,
"citations": ["Date: January 15, 2026"]
},
"line_items": {
"value": [
{
"description": {
"value": "Ergonomic Desk Chair",
"confidence": 0.96,
"citations": ["Ergonomic Desk Chair"]
},
"quantity": {
"value": 2,
"confidence": 0.98,
"citations": ["Qty: 2"]
},
"unit_price": {
"value": {
"amount": "349.99",
"currency": "USD"
},
"confidence": 0.97,
"citations": ["$349.99 each"]
}
},
{
"description": {
"value": "Standing Desk Converter",
"confidence": 0.95,
"citations": ["Standing Desk Converter"]
},
"quantity": {
"value": 1,
"confidence": 0.99,
"citations": ["Qty: 1"]
},
"unit_price": {
"value": {
"amount": "189.00",
"currency": "USD"
},
"confidence": 0.96,
"citations": ["$189.00 each"]
}
}
],
"confidence": 0.96,
"citations": []
},
"total_amount": {
"value": {
"amount": "888.98",
"currency": "USD"
},
"confidence": 0.98,
"citations": ["Total Due: $888.98"]
}
}
}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.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",
),
},
})Response
{
"success": true,
"data": {
"vendor": {
"value": "Acme Office Supplies Ltd.",
"confidence": 0.97,
"citations": ["Acme Office Supplies Ltd."]
},
"invoice_number": {
"value": "INV-2026-001",
"confidence": 0.99,
"citations": ["Invoice #INV-2026-001"]
},
"date": {
"value": "2026-01-15",
"confidence": 0.98,
"citations": ["Date: January 15, 2026"]
},
"line_items": {
"value": [
{
"description": {
"value": "Ergonomic Desk Chair",
"confidence": 0.96,
"citations": ["Ergonomic Desk Chair"]
},
"quantity": {
"value": 2,
"confidence": 0.98,
"citations": ["Qty: 2"]
},
"unit_price": {
"value": {
"amount": "349.99",
"currency": "USD"
},
"confidence": 0.97,
"citations": ["$349.99 each"]
}
},
{
"description": {
"value": "Standing Desk Converter",
"confidence": 0.95,
"citations": ["Standing Desk Converter"]
},
"quantity": {
"value": 1,
"confidence": 0.99,
"citations": ["Qty: 1"]
},
"unit_price": {
"value": {
"amount": "189.00",
"currency": "USD"
},
"confidence": 0.96,
"citations": ["$189.00 each"]
}
}
],
"confidence": 0.96,
"citations": []
},
"total_amount": {
"value": {
"amount": "888.98",
"currency": "USD"
},
"confidence": 0.98,
"citations": ["Total Due: $888.98"]
}
}
}