Guide to Add e-Invoice QR Code in Print Formats ​

This guide provides instructions on how to add an e-Invoice QR code to print formats. It covers both custom print formats and standard print formats.

Custom Print Format ​

To add a QR code to a custom print format, use the following code snippet:

{% if doc.irn %}
{% set e_invoice_log = frappe.db.get_value(
 "e-Invoice Log", doc.irn, ("invoice_data", "signed_qr_code"), as_dict=True
) %}

{%- set invoice_data = dict(json.loads(e_invoice_log.invoice_data)) -%}

<img src="data:image/png;base64,{{ get_qr_code(e_invoice_log.signed_qr_code, scale=2) }}" class="qrcode">
{% endif %}

Standard Print Format ​

To add an e-Invoice QR code to a standard print format, follow these steps:

1. Create a Web Template for the QR Code ​

• Open the Web Template List using the awesome bar and add a new Web Template.
• Enter the name of the Web Template as "e-Invoice QR Code"
• Select Type as "Component"
• Select Module as "Printing"
• Copy the following code snippet into the template field:

<img src="data:image/png;base64,{{ get_qr_code(qr_text, scale=2) }}" class="qrcode">

2. Add the following fields in the child table "Fields" ​

• Label: QR Text
• Fieldname: qr_text
• Field Type: Text

3. Adding the fields in print format ​

• Go to the print format where you want to add the QR Code. and click on Edit Format.
• Add a custom HTML section.
• Insert the following code snippet into the custom HTML section:

{% if doc.irn %}
{% set e_invoice_log = frappe.db.get_value(
 "e-Invoice Log", doc.irn, ("invoice_data", "signed_qr_code"), as_dict=True
) %}

{%- set invoice_data = dict(json.loads(e_invoice_log.invoice_data)) -%}


 {{ web_block('e-Invoice QR Code', values={'qr_text': e_invoice_log.signed_qr_code }) }}
{% endif %}