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Building Web and Mobile ArcGIS Server Applications with JavaScript ??? Second Edition

You're reading from   Building Web and Mobile ArcGIS Server Applications with JavaScript ??? Second Edition Build exciting custom web and mobile GIS applications with the ArcGIS Server API for JavaScript

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Product type Paperback
Published in Oct 2017
Publisher Packt
ISBN-13 9781787280526
Length 324 pages
Edition 2nd Edition
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Authors (2):
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Eric Pimpler Eric Pimpler
Author Profile Icon Eric Pimpler
Eric Pimpler
Mark Lewin Mark Lewin
Author Profile Icon Mark Lewin
Mark Lewin
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Table of Contents (15) Chapters Close

Preface 1. Introduction to HTML, CSS, and JavaScript FREE CHAPTER 2. Creating Maps and Adding Layers 3. Adding Graphics to the Map 4. The Feature Layer 5. Using Widgets and Toolbars 6. Performing Spatial and Attribute Queries 7. Identifying and Finding Features 8. Turning Addresses into Points and Points into Addresses 9. Directions and Routing 10. Geoprocessing Tasks 11. Geometry Operations 12. Integration with ArcGIS Online 13. Creating Mobile Applications 14. Looking Ahead - Version 4 of the ArcGIS API for JavaScript

Understanding the services page for a geoprocessing task


The services directory page for a geoprocessing service provides all the information you need to include it in your application.

This includes the execution type which can be either synchronous or asynchronous. In the case of the PopulationSummary service seen in the following screenshot, it is a synchronous task. This means that once your application has executed, it won't do anything else until the results of the geoprocessing task have been returned. This type of execution is typically used only with tasks that you expect to execute quickly.

Asynchronous geoprocessing tasks are submitted as jobs and allow your application to continue functioning while the geoprocessing service is doing its work. When the task has completed, it notifies your application that processing is complete and the results are ready.

The other information you will need from the services directory page for the service includes the parameter names, the parameter...

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