Building Intelligent GeoSpatial Search Applications with Azure Search

About this Presentation

Geo-spatial search is prevalent in everyday applications that power our day-to-day lives. In this presentation, you will learn how to use Azure-Search to power geospatial search application. This is a hands-on demo during which you will learn how to do the following operations described below using Postman and then later on walk through an end-to-end multi-tier application that integrates an Angular Web Application, a .NET CORE Web API with an Azure Search backend to demonstrate the full range of geospatial capabilities of Azure Search:

Goals

• Create an Index
• List all Indicies within the Service
• Load Geospatial Records into an Azure Search Index
• Query for Records within and outside of a specific radius
• Query for Records within and outside of a specific polygon
• Query for Records within a specific distance inside and outside a pre-defined polygon

Use Cases and Industry Application

During the demo, we will cover some real-world use cases where the geospatial capabilities of Azure Search could come in pretty handy such as tracking of important assets such as cruise ships in the sea, aircrafts, moving trucks and inventory at construction sites.

Searching by radius from a specific point

Searching by Geospatial fences and closed boundaries

Presentation Details

Primary Audience: Geo-Spatial Application Developers, Solution Architects.

Level

The content is designed as an intermediate to advanced level presentation for software engineers, application developers and/or architects.

Pre-Requisites

• Fundamental working knowledge of Azure Portal and Azure Search
• Fundamental working knowledge of HTML and Angular
• Familiarity with Visual Studio Code and minimum C# knowledge
• Familiarity with Postman
• .NET Core SDK 2.2
• Angular CLI: 7.3.0
• Node: 10.15.1
• Angular: 7.2.4

Presentation Artifacts

You can use the post man scripts here to create an index, add documents to the index and run queries against the index.

Postman Environment Variables to Define

You will need to define the following variables in your postman environment:

• QueryApiKey
• AdminApiKey
• serviceName
• apiVersion
• indexName

Contents of the Variables

Variable	Example	Description
QueryApiKey	079D3CCA69A550B2E4D8733F65D89590	The admin api key for admin operations
AdminApiKey	079D3CCA69A550B2E4D8733F65D89591	The query api key for read only queries
serviceName	isp20demo	The name of your Azure Search service
apiVersion	2017-11-11	The API version you are using
indexName	hotels	The name of the Azure Search index.

Relevant Links

Downloading and Installing Postman

https://www.getpostman.com/docs/v6/postman/launching_postman/installation_and_updates

Setting up Variables in Postman

https://www.getpostman.com/docs/v6/postman/environments_and_globals/variables

Creating and Index

https://docs.microsoft.com/en-us/rest/api/searchservice/index-operations

Indexing Via REST API

https://docs.microsoft.com/en-us/azure/search/search-import-data-rest-api

Supported Data Types

https://docs.microsoft.com/en-us/rest/api/searchservice/supported-data-types

Querying the Search Index

https://docs.microsoft.com/en-us/rest/api/searchservice/lucene-query-syntax-in-azure-search

https://docs.microsoft.com/en-us/azure/search/search-query-rest-api

Pricing Tiers

https://docs.microsoft.com/en-us/azure/search/search-sku-tier