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GeoServer Beginner's Guide

GeoServer Beginner's Guide

4.5 (15)
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GeoServer Beginner's Guide

GeoServer Beginner's Guide

4.5 (15)
Buy this Book

Overview of this book

GeoServer is an open source server-side software written in Java that allows users to share and edit geospatial data. Designed for interoperability, it publishes data from any major spatial data source using open standards. GeoServer allows you to display your spatial information to the world. Implementing the Web Map Service (WMS) standard, GeoServer can create maps in a variety of output formats. OpenLayers, a free mapping library, is integrated into GeoServer, making map generation quick and easy. GeoServer is built on Geotools, an open source Java GIS toolkit.GeoServer Beginner's Guide gives you a kick start to build custom maps using your data without the need for costly commercial software licenses and restrictions. Even if you do not have prior GIS knowledge, you will be able to make interactive maps after reading this book.You will install GeoServer, access your data from a database, style points, lines, polygons, and labels to impress site visitors with real-time maps.Follow along through a step-by-step guide that installs GeoServer in minutes. Explore the web-based administrative interface to connect to backend data stores such as MySQL, PostGIS, MSSQL, and Oracle. Display your data on web-based interactive maps, style lines, points, polygons, and embed images to visualize this data for your web visitors. Walk away from this book with a working application ready for production.After reading the GeoServer Beginner's Guide, you will have beautiful, custom maps on your website built using your geospatial data.
Table of Contents (20 chapters)
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GeoServer Beginner's Guide
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GeoServer Beginner's Guide
Credits
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Credits
About the Authors
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About the Authors
About the Reviewers
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About the Reviewers
www.PacktPub.com
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www.PacktPub.com
Preface
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Preface
Lock Free Chapter
1
GIS Fundamentals
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GIS Fundamentals
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What is GIS about?
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The foundation of any GIS – spatial data
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Understanding coordinate systems
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Representing geometrical shapes
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Modeling the real world with raster data
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Representing the world
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Time for action – exploring OpenStreetMap
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Adding more colors to your maps
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Time for action – making your thematic map
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Summary
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Getting Started with GeoServer
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Getting Started with GeoServer
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Installing Java
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Time for action – checking the presence of Java on Windows
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Time for action – checking the presence of Java on Ubuntu
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Time for action – installing JRE on Windows
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Time for action – installing JRE on Ubuntu
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Installing Apache Tomcat
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Time for action – installing Apache Tomcat on Windows
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Time for action – installing Apache Tomcat on Ubuntu
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Time for action – configuring Tomcat as a service on Ubuntu
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Installing GeoServer
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Time for action – deploying GeoServer on Tomcat
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Implementing basic security
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Time for action – improving security settings
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Summary
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Exploring the Administrative Interface
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Exploring the Administrative Interface
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Understanding the interface
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About & Status
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Time for action – manually reloading configuration
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Data
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Time for action – OpenLayers preview
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Time for action – KML preview
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Time for action – creating a workspace
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Services
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Time for action – limiting the SRS list from WMS
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Settings
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Time for action – changing your logging configuration
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Tile Caching
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Security
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Demos
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Time for action – exploring Demo requests
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Time for action – filtering the projection list
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Summary
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Accessing Layers
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Accessing Layers
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Layer types
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OpenLayers
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Time for action – exploring OpenLayers options
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Exploring the Web Map Service output formats
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Web Feature Service
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Time for action – parsing GeoJSON
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Extra output options
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Time for action – using the GetFeatureInfo freemarker template
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Using WMS Reflector
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Time for action – using WMS Reflector
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Summary
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Adding Your Data
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Adding Your Data
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Configuring your data
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Configuring vector data sources
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Time for action – adding shapefiles
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Time for action – installing PostgreSQL and PostGIS
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Time for action – loading data in PostGIS and publishing them in GeoServer
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Configuring raster data sources
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Exploring additional data sources
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Time for action – adding Oracle support in GeoServer
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Time for action – adding MySQL data source
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Summary
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Styling Your Layers
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Styling Your Layers
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Understanding Styled Layer Descriptor
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Editing styles
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Exploring the standard structure of a style
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Time for action – viewing GeoServer bundled styles
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Loading data for styling
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Working with point symbols
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Time for action – creating a simple point style
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Time for action – adding a stroke value
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Time for action – dealing with angles and transparency
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Time for action – composing simple shapes
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Time for action – using external graphics
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Linestring symbols
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Time for action – creating a simple line style
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Time for action – adding a border and a centerline
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Time for action – using hatching
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Time for action – using dashed lines
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Time for action – mixing dashing lines and markers
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Working with polygon symbols
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Time for action – creating a simple polygon style
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Time for action – using a graphic filling
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Time for action – using hatching with polygons
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Adding labels
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Time for action – labeling points
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Time for action – labeling lines
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Time for action – labeling polygons
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Thematic mapping
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Time for action – classifying roads
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Setting visibility
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Time for action – enhancing thematic roads map
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Putting it all together
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Time for action – grouping layers
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Summary
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Creating Simple Maps
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Creating Simple Maps
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Exploring Google Maps API
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Time for action – adding a GeoServer layer as overlay
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Time for action – adding a GeoServer layer as a base layer
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Time for action – adding a GeoServer cached layer as overlay
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Time for action – customizing Google basemap
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Time for action – intercepting the Click event
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Using OpenLayers
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Time for action – integrating GeoServer and OpenLayers
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Time for action – using GeoRSS with OpenLayers
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Exploring Leaflet
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Time for action – using Leaflet with GeoServer layers
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Summary
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Performance and Caching
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Performance and Caching
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Exploring GeoWebCache
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Time for action – configuring GeoWebCache storage
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Time for action – configuring Disk Quota
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Setting caching defaults
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Configuring gridsets
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Time for action – creating a custom gridset
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Configuring tile layers
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Time for action – configuring layers and layer groups for caching
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Time for action – using tiles with OpenLayers
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Time for action – seeding a layer
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Using an external GeoWebCache
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Summary
9
Automating Tasks: GeoServer REST Interface
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Automating Tasks: GeoServer REST Interface
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Introducing REST
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Using REST
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Time for action – installing the Requests library
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Managing data
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Time for action – managing workspaces
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Time for action – managing data stores
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Time for action – adding a new shapefile
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Time for action – adding a PostGIS table
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Publishing data
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Time for action – adding a new style
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Time for action – managing layers
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Summary
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Securing GeoServer Before Production
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Securing GeoServer Before Production
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Basic security settings
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Time for action – enabling strong encryption
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Time for action – changing the master password
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Defining users, groups, and roles
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Time for action – creating users and groups
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Time for action – defining roles
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Accessing data and services
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Time for action – securing layers
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Summary
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Tuning GeoServer in a Production Environment
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Tuning GeoServer in a Production Environment
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Tuning Java
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Time for action – configuring Java runtime parameters
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Time for action – installing native JAI
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Removing unused services
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Time for action – disabling unused services
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Setting a proxy
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Time for action – configuring a proxy
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Avoiding service faults
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Time for action – configuring a cluster
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Summary
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Going Further: Getting Help and Troubleshooting
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Going Further: Getting Help and Troubleshooting
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Going beyond maps
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Time for action – retrieving vector data
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Time for action – retrieving raster data
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Getting help
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Summary
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Pop Quiz Answers
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Pop Quiz Answers
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Chapter 2, Getting Started with GeoServer
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Chapter 4, Accessing Layers
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Chapter 5, Adding your Data
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Chapter 6, Styling your Layers
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Chapter 7, Creating Simple Maps
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Chapter 8, Performance and Caching
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Chapter 9, Automating Tasks: GeoServer REST Interface
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Chapter 10, Securing GeoServer before Production
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Chapter 11, Tuning GeoServer in a Production Environment
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Chapter 12, Going Further: Getting Help and Troubleshooting
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Index
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Index

Using REST

REST defines a set of operations defined from the HTTP protocol; so how can you interact with it? Using a browser can be a common way to send HTTP requests to a server; you do it almost every day when you browse the Internet and you do it with the GeoServer web interface! But using a browser is not a simple way to automate tasks; it requires human interaction. We need something that enables us to build small programs.

A lot of different tools exist that enable you to interact with REST. You can use programming languages such as Java or PHP, or script languages such as PowerShell in Windows or any Linux shell. In this chapter we will see examples in the programming language, Python, and with cURL. Python is a programming language that leverages on simplicity and code readability, and hence it is very easy to create small programs with it. cURL is a library and a command-line tool that can be easily incorporated in simple shell scripts. Both of these tools allow users to create REST...

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