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": "keihi-seisansho.pdf",
"url": "https://example.com/documents/keihi-seisansho-sample.pdf"
}
],
"schema": {
"fields": [
{
"name": "employee_name",
"type": "TEXT",
"description": "Employee name"
},
{
"name": "employee_number",
"type": "TEXT",
"description": "Employee number"
},
{
"name": "department",
"type": "TEXT",
"description": "Department"
},
{
"name": "submission_date",
"type": "DATE",
"description": "Submission date"
},
{
"name": "expense_lines",
"type": "ARRAY",
"description": "Expense settlement lines",
"fields": [
{
"name": "expense_date",
"type": "DATE",
"description": "Expense date"
},
{
"name": "category",
"type": "TEXT",
"description": "Expense category"
},
{
"name": "merchant",
"type": "TEXT",
"description": "Merchant or payee"
},
{
"name": "purpose",
"type": "TEXT",
"description": "Business purpose"
},
{
"name": "amount",
"type": "CURRENCY_AMOUNT",
"description": "Expense amount"
},
{
"name": "consumption_tax",
"type": "CURRENCY_AMOUNT",
"description": "Consumption tax amount if shown"
}
]
},
{
"name": "total_amount",
"type": "CURRENCY_AMOUNT",
"description": "Total settlement amount"
},
{
"name": "approval_status",
"type": "TEXT",
"description": "Approval status if shown"
},
{
"name": "currency",
"type": "CURRENCY_CODE",
"description": "Currency code"
}
]
}
}'Response
{
"success": true,
"data": {
"employee_name": {
"value": "Maria Keller",
"confidence": 0.97,
"citations": [
"EMPLOYEE NAME"
]
},
"employee_number": {
"value": "Employee Number",
"confidence": 0.97,
"citations": [
"EMPLOYEE NUMBER"
]
},
"department": {
"value": "Department",
"confidence": 0.97,
"citations": [
"DEPARTMENT"
]
},
"submission_date": {
"value": "2026-04-15",
"confidence": 0.97,
"citations": [
"15 Apr 2026"
]
},
"expense_lines": {
"value": [
{
"expense_date": {
"value": "2026-04-15",
"confidence": 0.96,
"citations": [
"15 Apr 2026"
]
},
"category": {
"value": "Category",
"confidence": 0.96,
"citations": [
"CATEGORY"
]
},
"merchant": {
"value": "Merchant",
"confidence": 0.96,
"citations": [
"MERCHANT"
]
},
"purpose": {
"value": "Purpose",
"confidence": 0.96,
"citations": [
"PURPOSE"
]
},
"amount": {
"value": {
"amount": "1234.56",
"currency": "EUR"
},
"confidence": 0.96,
"citations": [
"1,234.56"
]
},
"consumption_tax": {
"value": {
"amount": "1234.56",
"currency": "EUR"
},
"confidence": 0.96,
"citations": [
"1,234.56"
]
}
}
],
"confidence": 0.97,
"citations": [
"EXPENSE LINES"
]
},
"total_amount": {
"value": {
"amount": "1234.56",
"currency": "EUR"
},
"confidence": 0.97,
"citations": [
"1,234.56"
]
},
"approval_status": {
"value": "Approval Status",
"confidence": 0.97,
"citations": [
"APPROVAL STATUS"
]
},
"currency": {
"value": "EUR",
"confidence": 0.97,
"citations": [
"CURRENCY"
]
}
}
}Request
import { IterationLayer } from "iterationlayer";
const client = new IterationLayer({ apiKey: "YOUR_API_KEY" });
const result = await client.extractDocument({
"files": [
{
"type": "url",
"name": "keihi-seisansho.pdf",
"url": "https://example.com/documents/keihi-seisansho-sample.pdf"
}
],
"schema": {
"fields": [
{
"name": "employee_name",
"type": "TEXT",
"description": "Employee name"
},
{
"name": "employee_number",
"type": "TEXT",
"description": "Employee number"
},
{
"name": "department",
"type": "TEXT",
"description": "Department"
},
{
"name": "submission_date",
"type": "DATE",
"description": "Submission date"
},
{
"name": "expense_lines",
"type": "ARRAY",
"description": "Expense settlement lines",
"fields": [
{
"name": "expense_date",
"type": "DATE",
"description": "Expense date"
},
{
"name": "category",
"type": "TEXT",
"description": "Expense category"
},
{
"name": "merchant",
"type": "TEXT",
"description": "Merchant or payee"
},
{
"name": "purpose",
"type": "TEXT",
"description": "Business purpose"
},
{
"name": "amount",
"type": "CURRENCY_AMOUNT",
"description": "Expense amount"
},
{
"name": "consumption_tax",
"type": "CURRENCY_AMOUNT",
"description": "Consumption tax amount if shown"
}
]
},
{
"name": "total_amount",
"type": "CURRENCY_AMOUNT",
"description": "Total settlement amount"
},
{
"name": "approval_status",
"type": "TEXT",
"description": "Approval status if shown"
},
{
"name": "currency",
"type": "CURRENCY_CODE",
"description": "Currency code"
}
]
}
});Response
{
"success": true,
"data": {
"employee_name": {
"value": "Maria Keller",
"confidence": 0.97,
"citations": [
"EMPLOYEE NAME"
]
},
"employee_number": {
"value": "Employee Number",
"confidence": 0.97,
"citations": [
"EMPLOYEE NUMBER"
]
},
"department": {
"value": "Department",
"confidence": 0.97,
"citations": [
"DEPARTMENT"
]
},
"submission_date": {
"value": "2026-04-15",
"confidence": 0.97,
"citations": [
"15 Apr 2026"
]
},
"expense_lines": {
"value": [
{
"expense_date": {
"value": "2026-04-15",
"confidence": 0.96,
"citations": [
"15 Apr 2026"
]
},
"category": {
"value": "Category",
"confidence": 0.96,
"citations": [
"CATEGORY"
]
},
"merchant": {
"value": "Merchant",
"confidence": 0.96,
"citations": [
"MERCHANT"
]
},
"purpose": {
"value": "Purpose",
"confidence": 0.96,
"citations": [
"PURPOSE"
]
},
"amount": {
"value": {
"amount": "1234.56",
"currency": "EUR"
},
"confidence": 0.96,
"citations": [
"1,234.56"
]
},
"consumption_tax": {
"value": {
"amount": "1234.56",
"currency": "EUR"
},
"confidence": 0.96,
"citations": [
"1,234.56"
]
}
}
],
"confidence": 0.97,
"citations": [
"EXPENSE LINES"
]
},
"total_amount": {
"value": {
"amount": "1234.56",
"currency": "EUR"
},
"confidence": 0.97,
"citations": [
"1,234.56"
]
},
"approval_status": {
"value": "Approval Status",
"confidence": 0.97,
"citations": [
"APPROVAL STATUS"
]
},
"currency": {
"value": "EUR",
"confidence": 0.97,
"citations": [
"CURRENCY"
]
}
}
}Request
from iterationlayer import IterationLayer
client = IterationLayer(api_key="YOUR_API_KEY")
result = client.extract_document(**{
"files": [
{
"type": "url",
"name": "keihi-seisansho.pdf",
"url": "https://example.com/documents/keihi-seisansho-sample.pdf"
}
],
"schema": {
"fields": [
{
"name": "employee_name",
"type": "TEXT",
"description": "Employee name"
},
{
"name": "employee_number",
"type": "TEXT",
"description": "Employee number"
},
{
"name": "department",
"type": "TEXT",
"description": "Department"
},
{
"name": "submission_date",
"type": "DATE",
"description": "Submission date"
},
{
"name": "expense_lines",
"type": "ARRAY",
"description": "Expense settlement lines",
"fields": [
{
"name": "expense_date",
"type": "DATE",
"description": "Expense date"
},
{
"name": "category",
"type": "TEXT",
"description": "Expense category"
},
{
"name": "merchant",
"type": "TEXT",
"description": "Merchant or payee"
},
{
"name": "purpose",
"type": "TEXT",
"description": "Business purpose"
},
{
"name": "amount",
"type": "CURRENCY_AMOUNT",
"description": "Expense amount"
},
{
"name": "consumption_tax",
"type": "CURRENCY_AMOUNT",
"description": "Consumption tax amount if shown"
}
]
},
{
"name": "total_amount",
"type": "CURRENCY_AMOUNT",
"description": "Total settlement amount"
},
{
"name": "approval_status",
"type": "TEXT",
"description": "Approval status if shown"
},
{
"name": "currency",
"type": "CURRENCY_CODE",
"description": "Currency code"
}
]
}
})Response
{
"success": true,
"data": {
"employee_name": {
"value": "Maria Keller",
"confidence": 0.97,
"citations": [
"EMPLOYEE NAME"
]
},
"employee_number": {
"value": "Employee Number",
"confidence": 0.97,
"citations": [
"EMPLOYEE NUMBER"
]
},
"department": {
"value": "Department",
"confidence": 0.97,
"citations": [
"DEPARTMENT"
]
},
"submission_date": {
"value": "2026-04-15",
"confidence": 0.97,
"citations": [
"15 Apr 2026"
]
},
"expense_lines": {
"value": [
{
"expense_date": {
"value": "2026-04-15",
"confidence": 0.96,
"citations": [
"15 Apr 2026"
]
},
"category": {
"value": "Category",
"confidence": 0.96,
"citations": [
"CATEGORY"
]
},
"merchant": {
"value": "Merchant",
"confidence": 0.96,
"citations": [
"MERCHANT"
]
},
"purpose": {
"value": "Purpose",
"confidence": 0.96,
"citations": [
"PURPOSE"
]
},
"amount": {
"value": {
"amount": "1234.56",
"currency": "EUR"
},
"confidence": 0.96,
"citations": [
"1,234.56"
]
},
"consumption_tax": {
"value": {
"amount": "1234.56",
"currency": "EUR"
},
"confidence": 0.96,
"citations": [
"1,234.56"
]
}
}
],
"confidence": 0.97,
"citations": [
"EXPENSE LINES"
]
},
"total_amount": {
"value": {
"amount": "1234.56",
"currency": "EUR"
},
"confidence": 0.97,
"citations": [
"1,234.56"
]
},
"approval_status": {
"value": "Approval Status",
"confidence": 0.97,
"citations": [
"APPROVAL STATUS"
]
},
"currency": {
"value": "EUR",
"confidence": 0.97,
"citations": [
"CURRENCY"
]
}
}
}Request
package main
import il "github.com/iterationlayer/sdk-go"
func main() {
client := il.NewClient("YOUR_API_KEY")
result, err := client.ExtractDocument(il.ExtractDocumentRequest{
Files: []il.FileInput{
il.FileInput{
Type: "url",
Name: "keihi-seisansho.pdf",
Url: "https://example.com/documents/keihi-seisansho-sample.pdf",
},
},
Schema: il.ExtractionSchema{
Fields: []any{
il.TextFieldConfig{
Name: "employee_name",
Type: "TEXT",
Description: "Employee name",
},
il.TextFieldConfig{
Name: "employee_number",
Type: "TEXT",
Description: "Employee number",
},
il.TextFieldConfig{
Name: "department",
Type: "TEXT",
Description: "Department",
},
il.DateFieldConfig{
Name: "submission_date",
Type: "DATE",
Description: "Submission date",
},
il.ArrayFieldConfig{
Name: "expense_lines",
Type: "ARRAY",
Description: "Expense settlement lines",
Fields: []any{
il.DateFieldConfig{
Name: "expense_date",
Type: "DATE",
Description: "Expense date",
},
il.TextFieldConfig{
Name: "category",
Type: "TEXT",
Description: "Expense category",
},
il.TextFieldConfig{
Name: "merchant",
Type: "TEXT",
Description: "Merchant or payee",
},
il.TextFieldConfig{
Name: "purpose",
Type: "TEXT",
Description: "Business purpose",
},
il.CurrencyAmountFieldConfig{
Name: "amount",
Type: "CURRENCY_AMOUNT",
Description: "Expense amount",
},
il.CurrencyAmountFieldConfig{
Name: "consumption_tax",
Type: "CURRENCY_AMOUNT",
Description: "Consumption tax amount if shown",
},
},
},
il.CurrencyAmountFieldConfig{
Name: "total_amount",
Type: "CURRENCY_AMOUNT",
Description: "Total settlement amount",
},
il.TextFieldConfig{
Name: "approval_status",
Type: "TEXT",
Description: "Approval status if shown",
},
il.CurrencyCodeFieldConfig{
Name: "currency",
Type: "CURRENCY_CODE",
Description: "Currency code",
},
},
},
})
if err != nil {
panic(err)
}
_ = result
}Response
{
"success": true,
"data": {
"employee_name": {
"value": "Maria Keller",
"confidence": 0.97,
"citations": [
"EMPLOYEE NAME"
]
},
"employee_number": {
"value": "Employee Number",
"confidence": 0.97,
"citations": [
"EMPLOYEE NUMBER"
]
},
"department": {
"value": "Department",
"confidence": 0.97,
"citations": [
"DEPARTMENT"
]
},
"submission_date": {
"value": "2026-04-15",
"confidence": 0.97,
"citations": [
"15 Apr 2026"
]
},
"expense_lines": {
"value": [
{
"expense_date": {
"value": "2026-04-15",
"confidence": 0.96,
"citations": [
"15 Apr 2026"
]
},
"category": {
"value": "Category",
"confidence": 0.96,
"citations": [
"CATEGORY"
]
},
"merchant": {
"value": "Merchant",
"confidence": 0.96,
"citations": [
"MERCHANT"
]
},
"purpose": {
"value": "Purpose",
"confidence": 0.96,
"citations": [
"PURPOSE"
]
},
"amount": {
"value": {
"amount": "1234.56",
"currency": "EUR"
},
"confidence": 0.96,
"citations": [
"1,234.56"
]
},
"consumption_tax": {
"value": {
"amount": "1234.56",
"currency": "EUR"
},
"confidence": 0.96,
"citations": [
"1,234.56"
]
}
}
],
"confidence": 0.97,
"citations": [
"EXPENSE LINES"
]
},
"total_amount": {
"value": {
"amount": "1234.56",
"currency": "EUR"
},
"confidence": 0.97,
"citations": [
"1,234.56"
]
},
"approval_status": {
"value": "Approval Status",
"confidence": 0.97,
"citations": [
"APPROVAL STATUS"
]
},
"currency": {
"value": "EUR",
"confidence": 0.97,
"citations": [
"CURRENCY"
]
}
}
}Template
{
"name": "Extract Keihi Seisansho Data",
"nodes": [
{
"parameters": {
"content": "## Extract Keihi Seisansho Data\n\nFinance teams use this recipe to extract keihi seisansho fields into structured reimbursement records for approvals and accounting systems.\n\n**Note:** This workflow uses the Iteration Layer community node (`n8n-nodes-iterationlayer`). Install it via Settings > Community Nodes on self-hosted n8n, or add it directly on n8n Cloud with Verified Community Nodes enabled.",
"height": 280,
"width": 500,
"color": 2
},
"type": "n8n-nodes-base.stickyNote",
"typeVersion": 1,
"position": [
200,
40
],
"id": "extract-keihi-seisansho-data-overview",
"name": "Overview"
},
{
"parameters": {},
"type": "n8n-nodes-base.manualTrigger",
"typeVersion": 1,
"position": [
250,
300
],
"id": "extract-keihi-seisansho-data-trigger",
"name": "Manual Trigger"
},
{
"parameters": {
"resource": "documentExtraction",
"schemaInputMode": "rawJson",
"schemaJson": "{\n \"fields\": [\n {\n \"name\": \"employee_name\",\n \"type\": \"TEXT\",\n \"description\": \"Employee name\"\n },\n {\n \"name\": \"employee_number\",\n \"type\": \"TEXT\",\n \"description\": \"Employee number\"\n },\n {\n \"name\": \"department\",\n \"type\": \"TEXT\",\n \"description\": \"Department\"\n },\n {\n \"name\": \"submission_date\",\n \"type\": \"DATE\",\n \"description\": \"Submission date\"\n },\n {\n \"name\": \"expense_lines\",\n \"type\": \"ARRAY\",\n \"description\": \"Expense settlement lines\",\n \"fields\": [\n {\n \"name\": \"expense_date\",\n \"type\": \"DATE\",\n \"description\": \"Expense date\"\n },\n {\n \"name\": \"category\",\n \"type\": \"TEXT\",\n \"description\": \"Expense category\"\n },\n {\n \"name\": \"merchant\",\n \"type\": \"TEXT\",\n \"description\": \"Merchant or payee\"\n },\n {\n \"name\": \"purpose\",\n \"type\": \"TEXT\",\n \"description\": \"Business purpose\"\n },\n {\n \"name\": \"amount\",\n \"type\": \"CURRENCY_AMOUNT\",\n \"description\": \"Expense amount\"\n },\n {\n \"name\": \"consumption_tax\",\n \"type\": \"CURRENCY_AMOUNT\",\n \"description\": \"Consumption tax amount if shown\"\n }\n ]\n },\n {\n \"name\": \"total_amount\",\n \"type\": \"CURRENCY_AMOUNT\",\n \"description\": \"Total settlement amount\"\n },\n {\n \"name\": \"approval_status\",\n \"type\": \"TEXT\",\n \"description\": \"Approval status if shown\"\n },\n {\n \"name\": \"currency\",\n \"type\": \"CURRENCY_CODE\",\n \"description\": \"Currency code\"\n }\n ]\n}",
"files": {
"fileValues": [
{
"fileInputMode": "url",
"fileName": "keihi-seisansho.pdf",
"fileUrl": "https://example.com/documents/keihi-seisansho-sample.pdf"
}
]
}
},
"type": "n8n-nodes-iterationlayer.iterationLayer",
"typeVersion": 1,
"position": [
500,
300
],
"id": "extract-keihi-seisansho-data-extract",
"name": "Extract Data",
"credentials": {
"iterationLayerApi": {
"id": "1",
"name": "Iteration Layer API"
}
}
}
],
"connections": {
"Manual Trigger": {
"main": [
[
{
"node": "Extract Data",
"type": "main",
"index": 0
}
]
]
}
},
"settings": {
"executionOrder": "v1"
}
}Prompt
Extract keihi seisansho data from the file at [file URL]. Use the extract_document tool with these fields:
- employee_name (TEXT): Employee name
- employee_number (TEXT): Employee number
- department (TEXT): Department
- submission_date (DATE): Submission date
- expense_lines (ARRAY): Each with expense_date (DATE), category (TEXT), merchant (TEXT), purpose (TEXT), amount (CURRENCY_AMOUNT), consumption_tax (CURRENCY_AMOUNT)
- total_amount (CURRENCY_AMOUNT): Total settlement amount
- approval_status (TEXT): Approval status if shown
- currency (CURRENCY_CODE): Currency code