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Jinja2 (Python)

This guide explains how to generate an HTML string using Python's Jinja2 template engine and convert it to PDF by sending it to pdfg's API.

Technical Overview

  1. Create a Jinja2 template
  2. Pass data to the template to generate an HTML string
  3. Send the generated HTML string to pdfg's API to convert it to PDF

Sample

Defining the Template

{# templates/invoice.html #}
<!DOCTYPE html>
<html>
  <head></head>
  <body>
    <div class="invoice">
      <h1>Invoice</h1>
      <table>
        <thead>
          <tr>
            <th>Item</th>
            <th>Amount</th>
          </tr>
        </thead>
        <tbody>
          {% for item in items %}
          <tr>
            <td>{{ item.name }}</td>
            <td>{{ item.price }} USD</td>
          </tr>
          {% endfor %}
        </tbody>
      </table>
      <p class="total">Total: {{ total }} USD</p>
    </div>
  </body>
</html>

Using the Template and Generating PDF

# generate_pdf.py
from jinja2 import Environment, FileSystemLoader
import requests

# Configure Jinja2 environment
env = Environment(loader=FileSystemLoader('templates'))
template = env.get_template('invoice.html')

# Prepare data
items = [
    {'name': '商品A', 'price': 1000},
    {'name': '商品B', 'price': 2000},
]
total = 3000

# Generate HTML string
html = template.render(items=items, total=total)

# Request to pdfg's API
response = requests.post(
    'https://api.pdfg.net/v1',
    headers={
        'Content-Type': 'application/json',
        'Authorization': 'Bearer YOUR_API_KEY'
    },
    json={
        'html': html,
        'pdfOptions': {
            'format': 'A4'
        }
    }
)

# Save PDF
if response.status_code == 200:
    with open('invoice.pdf', 'wb') as f:
        f.write(response.content)
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