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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 %}

TIP

You can also check out the implementation in the Standard e-Invoice print format for further guidance.

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

web template fields

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 %}

print format

WARNING

Make sure the name mentioned in web_block exactly matches the name of your Web Template.