Get Address from Longitude and Latitude using Google Maps API (Google Reverse Geolocation)

import os
import requests
from fastapi import FastAPI, Form, HTTPException
from fastapi.responses import HTMLResponse
from pydantic import BaseModel
from abilities import llm_prompt

app = FastAPI()

class LocationData(BaseModel):
    lat: str
    lon: str
    city: str = ""
    country: str = ""

@app.get("/", response_class=HTMLResponse)
def form_post():
    html_content = """
    <!DOCTYPE html>
    <html lang="en">
        <meta charset="UTF-8">
        <meta name="viewport" content="width=device-width, initial-scale=1.0">

About this template

An app for asking questions about location data based on latitude and longitude coordinates. This app allows to get address from longitude (long) and latitude (lat) using Google Maps API. Google reverse geolocation helps to get address from coordinates using Google Maps API.

Introduction to the Geolocation Address Finder Template

Welcome to the step-by-step guide on how to use the Geolocation Address Finder template on Lazy. This template is designed to help you build an application that can fetch address information based on latitude and longitude coordinates. It also allows users to ask questions about the location, which are answered using a language model. This application uses the FastAPI framework and integrates with external APIs to provide the desired functionality.

Getting Started

To begin using this template, click on "Start with this Template" on the Lazy platform. This will pre-populate the code in the Lazy Builder interface, so you won't need to copy, paste, or delete any code manually.

Test: Deploying the App

Once you have the template loaded, press the "Test" button to start the deployment of your app. The Lazy CLI will handle the deployment process, and you will not need to install any libraries or set up your environment.

Entering Input

After pressing the "Test" button, if the app requires any user input, the Lazy App's CLI interface will prompt you to provide it. Follow the instructions in the CLI to enter the necessary information.

Using the App

When the app is successfully deployed, Lazy will provide you with a dedicated server link to access the app's interface. If you're using the FastAPI framework, Lazy will also provide a link to the API documentation.

The interface is a simple web form where users can enter latitude and longitude coordinates and a question about the location. Upon submission, the app will display the address information and the answer to the question provided by the language model.

Integrating the App

If you need to integrate this app into another service or frontend, you can use the server link provided by Lazy. For example, if you want to embed the app's functionality into a website, you can create an iframe that points to the server link or use the API endpoints directly with AJAX calls or other HTTP clients.

Here is a sample request to the /get_location endpoint:

POST /get_location
Content-Type: application/x-www-form-urlencoded


And here is a sample response you might receive:

  "nearest": {
    "city": "New York",
    "country": "United States",
    "lat": "40.712776",
    "lon": "-74.005974"
  "locality": "New York",
  "localityInfo": {
    // Additional locality info

For the /get_answer endpoint, you would send a request including the question and location data:

POST /get_answer
Content-Type: application/x-www-form-urlencoded

question=What is the population?&locationData={"city":"New York","country":"United States","lat":"40.712776","lon":"-74.005974"}

The response will contain the answer to your question:

  "message": "The population of New York is approximately 8.4 million."

Remember, you can use these API endpoints by making HTTP requests from any frontend or service that can communicate with a web server.

By following these steps, you should be able to deploy and use the Geolocation Address Finder template on Lazy with ease. If you encounter any issues or have questions, Lazy's customer support is available to assist you.

Last published
June 14, 2024

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Get Address from Longitude and Latitude using Google Maps API (Google Reverse Geolocation)