Srilankan55zip -

Integrate a comprehensive list of Sri Lanka's 500+ post offices.

Use a lightweight Node.js/Express service or a Python/Flask endpoint to serve the mapping. srilankan55zip

To develop a feature around (often colloquially referred to as "ZIP codes" despite being a 5-digit numeric system), you should focus on a Postcode-to-Location lookup or Address Validation tool. Integrate a comprehensive list of Sri Lanka's 500+

Use Regex to ensure the input is exactly 5 numeric digits (e.g., ^(\d{5})$ ). Use Regex to ensure the input is exactly 5 numeric digits (e

A simple onChange event listener on the zip code input field to trigger the fetch request.

Instantly update the UI fields for "City" and "District" to reduce user typing effort. 2. Key Mapping Examples Postal Code 00100 Colombo 01 (Fort) 20000 Kandy 80000 Galle 40000 Jaffna 3. Technical Implementation Strategy

This feature would automatically populate the once a user enters a valid 5-digit Sri Lankan postal code. 1. Core Functionality