iterationlayer Generate Shipping Label
E-commerce platforms and fulfillment centers use this recipe to generate a shipping label on demand. Define sender and recipient addresses in a grid layout with a barcode for scanning — ready to print and attach to an outgoing package.
APIs Used
Document Generation (1 credits/request)
Prerequisites
You need an Iteration Layer API key. Get one at platform.iterationlayer.com during the 7-day trial.
For full integration guidance (SDKs, auth, MCP, error handling), see the Iteration Layer Integration Guide.
Implementation
curl -X POST https://api.iterationlayer.com/document-generation/v1/generate \
-H "Authorization: Bearer YOUR_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"format": "pdf",
"document": {
"metadata": {
"title": "Shipping Label - TRK-84729105",
"author": "Greenfield Fulfillment Co."
},
"page": {
"size": {
"width_in_pt": 288,
"height_in_pt": 432
},
"margins": {
"top_in_pt": 18,
"right_in_pt": 18,
"bottom_in_pt": 18,
"left_in_pt": 18
}
},
"styles": {
"text": {
"font_family": "Helvetica",
"font_size_in_pt": 11.0,
"line_height": 1.5,
"color": "#333333"
},
"headline": {
"font_family": "Helvetica",
"font_size_in_pt": 24.0,
"color": "#111111",
"spacing_before_in_pt": 12.0,
"spacing_after_in_pt": 6.0,
"font_weight": "bold"
},
"link": {
"color": "#0066CC",
"is_underlined": true
},
"list": {
"text_style": {
"font_family": "Helvetica",
"font_size_in_pt": 11.0,
"line_height": 1.5,
"color": "#333333"
},
"marker_color": "#333333",
"marker_gap_in_pt": 8.0
},
"table": {
"header": {
"background_color": "#333333",
"text_color": "#FFFFFF",
"font_size_in_pt": 11.0,
"font_weight": "bold"
},
"body": {
"background_color": "#FFFFFF",
"text_color": "#333333",
"font_size_in_pt": 11.0
},
"border": {
"outer": {
"top": {
"color": "#CCCCCC",
"width_in_pt": 1.0
},
"right": {
"color": "#CCCCCC",
"width_in_pt": 1.0
},
"bottom": {
"color": "#CCCCCC",
"width_in_pt": 1.0
},
"left": {
"color": "#CCCCCC",
"width_in_pt": 1.0
}
},
"inner": {
"horizontal": {
"color": "#EEEEEE",
"width_in_pt": 0.5
},
"vertical": {
"color": "#EEEEEE",
"width_in_pt": 0.5
}
}
}
},
"grid": {
"background_color": "#FFFFFF",
"border_color": "#CCCCCC",
"border_width_in_pt": 0.0,
"gap_in_pt": 12.0
},
"separator": {
"color": "#CCCCCC",
"thickness_in_pt": 1.0,
"spacing_before_in_pt": 12.0,
"spacing_after_in_pt": 12.0
},
"image": {
"border_color": "#000000",
"border_width_in_pt": 0.0
}
},
"content": [
{
"type": "headline",
"level": "h3",
"text": "GREENFIELD FULFILLMENT CO."
},
{
"type": "separator"
},
{
"type": "grid",
"columns": [
{
"column_span": 6,
"blocks": [
{
"type": "paragraph",
"runs": [
{
"text": "FROM:",
"font_weight": "bold"
}
]
},
{
"type": "paragraph",
"markdown": "Greenfield Fulfillment Co.\n1200 Commerce Blvd, Unit 4\nAustin, TX 78701\nUnited States"
}
]
},
{
"column_span": 6,
"blocks": [
{
"type": "paragraph",
"runs": [
{
"text": "TO:",
"font_weight": "bold"
}
]
},
{
"type": "paragraph",
"runs": [
{
"text": "Maria Vasquez",
"font_weight": "bold"
},
{
"text": "\n742 Evergreen Terrace, Apt 3B\nPortland, OR 97205\nUnited States"
}
]
}
]
}
]
},
{
"type": "separator"
},
{
"type": "grid",
"columns": [
{
"column_span": 6,
"blocks": [
{
"type": "paragraph",
"runs": [
{
"text": "Service: ",
"font_weight": "bold"
},
{
"text": "Priority 2-Day"
}
]
},
{
"type": "paragraph",
"runs": [
{
"text": "Weight: ",
"font_weight": "bold"
},
{
"text": "2.4 lbs"
}
]
}
]
},
{
"column_span": 6,
"blocks": [
{
"type": "paragraph",
"runs": [
{
"text": "Order: ",
"font_weight": "bold"
},
{
"text": "GF-2026-48291"
}
]
},
{
"type": "paragraph",
"runs": [
{
"text": "Date: ",
"font_weight": "bold"
},
{
"text": "2026-03-06"
}
]
}
]
}
]
},
{
"type": "separator"
},
{
"type": "barcode",
"value": "TRK84729105204839",
"format": "code128",
"width_in_pt": 200,
"height_in_pt": 60,
"fg_hex_color": "#000000",
"bg_hex_color": "#FFFFFF"
},
{
"type": "paragraph",
"runs": [
{
"text": "Tracking: ",
"font_weight": "bold"
},
{
"text": "TRK-8472-9105-2048-39"
}
]
}
]
}
}'
import { IterationLayer } from "iterationlayer";
const client = new IterationLayer({ apiKey: "YOUR_API_KEY" });
const result = await client.generateDocument({
format: "pdf",
document: {
metadata: {
title: "Shipping Label - TRK-84729105",
author: "Greenfield Fulfillment Co.",
},
page: {
size: {
width_in_pt: 288,
height_in_pt: 432,
},
margins: {
top_in_pt: 18,
right_in_pt: 18,
bottom_in_pt: 18,
left_in_pt: 18,
},
},
styles: {
text: {
font_family: "Helvetica",
font_size_in_pt: 11.0,
line_height: 1.5,
color: "#333333",
},
headline: {
font_family: "Helvetica",
font_size_in_pt: 24.0,
color: "#111111",
spacing_before_in_pt: 12.0,
spacing_after_in_pt: 6.0,
font_weight: "bold",
},
link: {
color: "#0066CC",
is_underlined: true,
},
list: {
text_style: {
font_family: "Helvetica",
font_size_in_pt: 11.0,
line_height: 1.5,
color: "#333333",
},
marker_color: "#333333",
marker_gap_in_pt: 8.0,
},
table: {
header: {
background_color: "#333333",
text_color: "#FFFFFF",
font_size_in_pt: 11.0,
font_weight: "bold",
},
body: {
background_color: "#FFFFFF",
text_color: "#333333",
font_size_in_pt: 11.0,
},
border: {
outer: {
top: {
color: "#CCCCCC",
width_in_pt: 1.0,
},
right: {
color: "#CCCCCC",
width_in_pt: 1.0,
},
bottom: {
color: "#CCCCCC",
width_in_pt: 1.0,
},
left: {
color: "#CCCCCC",
width_in_pt: 1.0,
},
},
inner: {
horizontal: {
color: "#EEEEEE",
width_in_pt: 0.5,
},
vertical: {
color: "#EEEEEE",
width_in_pt: 0.5,
},
},
},
},
grid: {
background_color: "#FFFFFF",
border_color: "#CCCCCC",
border_width_in_pt: 0.0,
gap_in_pt: 12.0,
},
separator: {
color: "#CCCCCC",
thickness_in_pt: 1.0,
spacing_before_in_pt: 12.0,
spacing_after_in_pt: 12.0,
},
image: {
border_color: "#000000",
border_width_in_pt: 0.0,
},
},
content: [
{
type: "headline",
level: "h3",
text: "GREENFIELD FULFILLMENT CO.",
},
{ type: "separator" },
{
type: "grid",
columns: [
{
column_span: 6,
blocks: [
{
type: "paragraph",
runs: [
{
text: "FROM:",
font_weight: "bold",
},
],
},
{
type: "paragraph",
markdown:
"Greenfield Fulfillment Co.\n1200 Commerce Blvd, Unit 4\nAustin, TX 78701\nUnited States",
},
],
},
{
column_span: 6,
blocks: [
{
type: "paragraph",
runs: [
{
text: "TO:",
font_weight: "bold",
},
],
},
{
type: "paragraph",
runs: [
{
text: "Maria Vasquez",
font_weight: "bold",
},
{
text: "\n742 Evergreen Terrace, Apt 3B\nPortland, OR 97205\nUnited States",
},
],
},
],
},
],
},
{ type: "separator" },
{
type: "grid",
columns: [
{
column_span: 6,
blocks: [
{
type: "paragraph",
runs: [
{
text: "Service: ",
font_weight: "bold",
},
{ text: "Priority 2-Day" },
],
},
{
type: "paragraph",
runs: [
{
text: "Weight: ",
font_weight: "bold",
},
{ text: "2.4 lbs" },
],
},
],
},
{
column_span: 6,
blocks: [
{
type: "paragraph",
runs: [
{
text: "Order: ",
font_weight: "bold",
},
{ text: "GF-2026-48291" },
],
},
{
type: "paragraph",
runs: [
{
text: "Date: ",
font_weight: "bold",
},
{ text: "2026-03-06" },
],
},
],
},
],
},
{ type: "separator" },
{
type: "barcode",
value: "TRK84729105204839",
format: "code128",
width_in_pt: 200,
height_in_pt: 60,
fg_hex_color: "#000000",
bg_hex_color: "#FFFFFF",
},
{
type: "paragraph",
runs: [
{
text: "Tracking: ",
font_weight: "bold",
},
{ text: "TRK-8472-9105-2048-39" },
],
},
],
},
});
from iterationlayer import IterationLayer
client = IterationLayer(api_key="YOUR_API_KEY")
result = client.generate_document(
format="pdf",
document={
"metadata": {
"title": "Shipping Label - TRK-84729105",
"author": "Greenfield Fulfillment Co.",
},
"page": {
"size": {
"width_in_pt": 288,
"height_in_pt": 432,
},
"margins": {
"top_in_pt": 18,
"right_in_pt": 18,
"bottom_in_pt": 18,
"left_in_pt": 18,
},
},
"styles": {
"text": {
"font_family": "Helvetica",
"font_size_in_pt": 11.0,
"line_height": 1.5,
"color": "#333333",
},
"headline": {
"font_family": "Helvetica",
"font_size_in_pt": 24.0,
"color": "#111111",
"spacing_before_in_pt": 12.0,
"spacing_after_in_pt": 6.0,
"font_weight": "bold",
},
"link": {
"color": "#0066CC",
"is_underlined": True,
},
"list": {
"text_style": {
"font_family": "Helvetica",
"font_size_in_pt": 11.0,
"line_height": 1.5,
"color": "#333333",
},
"marker_color": "#333333",
"marker_gap_in_pt": 8.0,
},
"table": {
"header": {
"background_color": "#333333",
"text_color": "#FFFFFF",
"font_size_in_pt": 11.0,
"font_weight": "bold",
},
"body": {
"background_color": "#FFFFFF",
"text_color": "#333333",
"font_size_in_pt": 11.0,
},
"border": {
"outer": {
"top": {
"color": "#CCCCCC",
"width_in_pt": 1.0,
},
"right": {
"color": "#CCCCCC",
"width_in_pt": 1.0,
},
"bottom": {
"color": "#CCCCCC",
"width_in_pt": 1.0,
},
"left": {
"color": "#CCCCCC",
"width_in_pt": 1.0,
},
},
"inner": {
"horizontal": {
"color": "#EEEEEE",
"width_in_pt": 0.5,
},
"vertical": {
"color": "#EEEEEE",
"width_in_pt": 0.5,
},
},
},
},
"grid": {
"background_color": "#FFFFFF",
"border_color": "#CCCCCC",
"border_width_in_pt": 0.0,
"gap_in_pt": 12.0,
},
"separator": {
"color": "#CCCCCC",
"thickness_in_pt": 1.0,
"spacing_before_in_pt": 12.0,
"spacing_after_in_pt": 12.0,
},
"image": {
"border_color": "#000000",
"border_width_in_pt": 0.0,
},
},
"content": [
{
"type": "headline",
"level": "h3",
"text": "GREENFIELD FULFILLMENT CO.",
},
{"type": "separator"},
{
"type": "grid",
"columns": [
{
"column_span": 6,
"blocks": [
{
"type": "paragraph",
"runs": [
{
"text": "FROM:",
"font_weight": "bold",
},
],
},
{
"type": "paragraph",
"markdown": "Greenfield Fulfillment Co.\n1200 Commerce Blvd, Unit 4\nAustin, TX 78701\nUnited States",
},
],
},
{
"column_span": 6,
"blocks": [
{
"type": "paragraph",
"runs": [
{
"text": "TO:",
"font_weight": "bold",
},
],
},
{
"type": "paragraph",
"runs": [
{
"text": "Maria Vasquez",
"font_weight": "bold",
},
{
"text": "\n742 Evergreen Terrace, Apt 3B\nPortland, OR 97205\nUnited States",
},
],
},
],
},
],
},
{"type": "separator"},
{
"type": "grid",
"columns": [
{
"column_span": 6,
"blocks": [
{
"type": "paragraph",
"runs": [
{
"text": "Service: ",
"font_weight": "bold",
},
{"text": "Priority 2-Day"},
],
},
{
"type": "paragraph",
"runs": [
{
"text": "Weight: ",
"font_weight": "bold",
},
{"text": "2.4 lbs"},
],
},
],
},
{
"column_span": 6,
"blocks": [
{
"type": "paragraph",
"runs": [
{
"text": "Order: ",
"font_weight": "bold",
},
{"text": "GF-2026-48291"},
],
},
{
"type": "paragraph",
"runs": [
{
"text": "Date: ",
"font_weight": "bold",
},
{"text": "2026-03-06"},
],
},
],
},
],
},
{"type": "separator"},
{
"type": "barcode",
"value": "TRK84729105204839",
"format": "code128",
"width_in_pt": 200,
"height_in_pt": 60,
"fg_hex_color": "#000000",
"bg_hex_color": "#FFFFFF",
},
{
"type": "paragraph",
"runs": [
{
"text": "Tracking: ",
"font_weight": "bold",
},
{"text": "TRK-8472-9105-2048-39"},
],
},
],
},
)
package main
import il "github.com/iterationlayer/sdk-go"
func main() {
client := il.NewClient("YOUR_API_KEY")
result, err := client.GenerateDocument(il.GenerateDocumentRequest{
Format: "pdf",
Document: il.DocumentDefinition{
Metadata: il.DocumentMetadata{
Title: "Shipping Label - TRK-84729105",
Author: "Greenfield Fulfillment Co.",
},
Page: il.DocumentPage{
Size: il.DocPageSize{
WidthInPt: 288,
HeightInPt: 432,
},
Margins: il.DocMargins{
TopInPt: 18,
RightInPt: 18,
BottomInPt: 18,
LeftInPt: 18,
},
},
Content: []il.ContentBlock{
il.NewHeadlineBlock("h3", "GREENFIELD FULFILLMENT CO."),
il.NewSeparatorBlock(),
il.NewGridBlock([]il.GridColumn{
{ColumnSpan: 6, Blocks: []il.ContentBlock{
il.NewParagraphBlock(),
}},
{ColumnSpan: 6, Blocks: []il.ContentBlock{
il.NewParagraphBlock(),
}},
}),
il.NewSeparatorBlock(),
il.NewBarcodeBlock(0, "TRK84729105204839", "code128", "#000000", "#FFFFFF",
il.Position{},
il.Dimensions{
Width: 200,
Height: 60,
}),
},
},
})
if err != nil {
panic(err)
}
}
{
"name": "Generate Shipping Label",
"nodes": [
{
"parameters": {
"content": "## Generate Shipping Label\n\nE-commerce platforms and fulfillment centers use this recipe to generate a shipping label on demand. Define sender and recipient addresses in a grid layout with a barcode for scanning \u2014 ready to print and attach to an outgoing package.\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": "86842502-62a3-48d2-9621-9e4852498c89",
"name": "Overview"
},
{
"parameters": {
"content": "### Step 1: Generate Document\nResource: **Document Generation**\n\nConfigure the Document Generation parameters below, then connect your credentials.",
"height": 160,
"width": 300,
"color": 6
},
"type": "n8n-nodes-base.stickyNote",
"typeVersion": 1,
"position": [
475,
100
],
"id": "74bf5afb-c939-4012-8c61-fb33b4e72d5c",
"name": "Step 1 Note"
},
{
"parameters": {},
"type": "n8n-nodes-base.manualTrigger",
"typeVersion": 1,
"position": [
250,
300
],
"id": "bdc062a7-2c0d-4994-8b2b-c4cd715715e3",
"name": "Manual Trigger"
},
{
"parameters": {
"resource": "documentGeneration",
"format": "pdf",
"documentJson": "{\n \"metadata\": {\n \"title\": \"Shipping Label - TRK-84729105\",\n \"author\": \"Greenfield Fulfillment Co.\"\n },\n \"page\": {\n \"size\": {\n \"width_in_pt\": 288,\n \"height_in_pt\": 432\n },\n \"margins\": {\n \"top_in_pt\": 18,\n \"right_in_pt\": 18,\n \"bottom_in_pt\": 18,\n \"left_in_pt\": 18\n }\n },\n \"styles\": {\n \"text\": {\n \"font_family\": \"Helvetica\",\n \"font_size_in_pt\": 11.0,\n \"line_height\": 1.5,\n \"color\": \"#333333\"\n },\n \"headline\": {\n \"font_family\": \"Helvetica\",\n \"font_size_in_pt\": 24.0,\n \"color\": \"#111111\",\n \"spacing_before_in_pt\": 12.0,\n \"spacing_after_in_pt\": 6.0,\n \"font_weight\": \"bold\"\n },\n \"link\": {\n \"color\": \"#0066CC\",\n \"is_underlined\": true\n },\n \"list\": {\n \"text_style\": {\n \"font_family\": \"Helvetica\",\n \"font_size_in_pt\": 11.0,\n \"line_height\": 1.5,\n \"color\": \"#333333\"\n },\n \"marker_color\": \"#333333\",\n \"marker_gap_in_pt\": 8.0\n },\n \"table\": {\n \"header\": {\n \"background_color\": \"#333333\",\n \"text_color\": \"#FFFFFF\",\n \"font_size_in_pt\": 11.0,\n \"font_weight\": \"bold\"\n },\n \"body\": {\n \"background_color\": \"#FFFFFF\",\n \"text_color\": \"#333333\",\n \"font_size_in_pt\": 11.0\n },\n \"border\": {\n \"outer\": {\n \"top\": {\n \"color\": \"#CCCCCC\",\n \"width_in_pt\": 1.0\n },\n \"right\": {\n \"color\": \"#CCCCCC\",\n \"width_in_pt\": 1.0\n },\n \"bottom\": {\n \"color\": \"#CCCCCC\",\n \"width_in_pt\": 1.0\n },\n \"left\": {\n \"color\": \"#CCCCCC\",\n \"width_in_pt\": 1.0\n }\n },\n \"inner\": {\n \"horizontal\": {\n \"color\": \"#EEEEEE\",\n \"width_in_pt\": 0.5\n },\n \"vertical\": {\n \"color\": \"#EEEEEE\",\n \"width_in_pt\": 0.5\n }\n }\n }\n },\n \"grid\": {\n \"background_color\": \"#FFFFFF\",\n \"border_color\": \"#CCCCCC\",\n \"border_width_in_pt\": 0.0,\n \"gap_in_pt\": 12.0\n },\n \"separator\": {\n \"color\": \"#CCCCCC\",\n \"thickness_in_pt\": 1.0,\n \"spacing_before_in_pt\": 12.0,\n \"spacing_after_in_pt\": 12.0\n },\n \"image\": {\n \"border_color\": \"#000000\",\n \"border_width_in_pt\": 0.0\n }\n },\n \"content\": [\n {\n \"type\": \"headline\",\n \"level\": \"h3\",\n \"text\": \"GREENFIELD FULFILLMENT CO.\"\n },\n {\n \"type\": \"separator\"\n },\n {\n \"type\": \"grid\",\n \"columns\": [\n {\n \"column_span\": 6,\n \"blocks\": [\n {\n \"type\": \"paragraph\",\n \"runs\": [\n {\n \"text\": \"FROM:\",\n \"font_weight\": \"bold\"\n }\n ]\n },\n {\n \"type\": \"paragraph\",\n \"markdown\": \"Greenfield Fulfillment Co.\\n1200 Commerce Blvd, Unit 4\\nAustin, TX 78701\\nUnited States\"\n }\n ]\n },\n {\n \"column_span\": 6,\n \"blocks\": [\n {\n \"type\": \"paragraph\",\n \"runs\": [\n {\n \"text\": \"TO:\",\n \"font_weight\": \"bold\"\n }\n ]\n },\n {\n \"type\": \"paragraph\",\n \"runs\": [\n {\n \"text\": \"Maria Vasquez\",\n \"font_weight\": \"bold\"\n },\n {\n \"text\": \"\\n742 Evergreen Terrace, Apt 3B\\nPortland, OR 97205\\nUnited States\"\n }\n ]\n }\n ]\n }\n ]\n },\n {\n \"type\": \"separator\"\n },\n {\n \"type\": \"grid\",\n \"columns\": [\n {\n \"column_span\": 6,\n \"blocks\": [\n {\n \"type\": \"paragraph\",\n \"runs\": [\n {\n \"text\": \"Service: \",\n \"font_weight\": \"bold\"\n },\n {\n \"text\": \"Priority 2-Day\"\n }\n ]\n },\n {\n \"type\": \"paragraph\",\n \"runs\": [\n {\n \"text\": \"Weight: \",\n \"font_weight\": \"bold\"\n },\n {\n \"text\": \"2.4 lbs\"\n }\n ]\n }\n ]\n },\n {\n \"column_span\": 6,\n \"blocks\": [\n {\n \"type\": \"paragraph\",\n \"runs\": [\n {\n \"text\": \"Order: \",\n \"font_weight\": \"bold\"\n },\n {\n \"text\": \"GF-2026-48291\"\n }\n ]\n },\n {\n \"type\": \"paragraph\",\n \"runs\": [\n {\n \"text\": \"Date: \",\n \"font_weight\": \"bold\"\n },\n {\n \"text\": \"2026-03-06\"\n }\n ]\n }\n ]\n }\n ]\n },\n {\n \"type\": \"separator\"\n },\n {\n \"type\": \"barcode\",\n \"value\": \"TRK84729105204839\",\n \"format\": \"code128\",\n \"width_in_pt\": 200,\n \"height_in_pt\": 60,\n \"fg_hex_color\": \"#000000\",\n \"bg_hex_color\": \"#FFFFFF\"\n },\n {\n \"type\": \"paragraph\",\n \"runs\": [\n {\n \"text\": \"Tracking: \",\n \"font_weight\": \"bold\"\n },\n {\n \"text\": \"TRK-8472-9105-2048-39\"\n }\n ]\n }\n ]\n}"
},
"type": "n8n-nodes-iterationlayer.iterationLayer",
"typeVersion": 1,
"position": [
500,
300
],
"id": "15d21268-02cf-4da2-b765-c6ad06fb1745",
"name": "Generate Document",
"credentials": {
"iterationLayerApi": {
"id": "1",
"name": "Iteration Layer API"
}
}
}
],
"connections": {
"Manual Trigger": {
"main": [
[
{
"node": "Generate Document",
"type": "main",
"index": 0
}
]
]
}
},
"settings": {
"executionOrder": "v1"
}
}
Generate a shipping label PDF. Use the generate_document tool with format "pdf" and a compact page size with these content blocks:
- Paragraph: "FROM" with [sender name and address]
- Separator
- Paragraph: "TO" with [recipient name and address] in bold
- Barcode: Code 128 barcode with [tracking number]
- Paragraph: tracking number text and shipping method
Response
{
"success": true,
"data": {
"buffer": "JVBERi0xLjcKMSAwIG9iago8...",
"mime_type": "application/pdf"
}
}