Lotus Training : Lotus Domino Designer 8: Web Agents and Web Services

The Domino HTTP server task is extremely versatile. In addition to its HTML rendering tasks, it also executes several types of design elements coded in Java or LotusScript:

Agents run by a Form’s WebQueryOpen and WebQuerySave events.
Agents run by the ?OpenAgent URL command.
Web Services that run in response to a SOAP request message.

This course covers the development and security of these design elements. You will also learn debugging and run time error handling techniques.

This course also takes a close look at Web Service client requirements and teaches you how to code a simple Web Service client using a SOAP toolkit.

Lotus Training Course goals

In this course, you will learn how to: This course will teach you how to:

Describe the differences and application of Agents run from a Form’s WebQueryOpen and WebQuerySave events and those run from the ?OpenAgent URL command.
Code Agents run by the Form’s WebQueryOpen event to work within the document context as well as perform lookups to other databases.
Conditionally run WebQueryOpen Agents depending on document state.
Define the server, database, and Agent security measures and ensure that Agents are run in the proper context.
Code Agents run by the Form’s WebQuerySave event to translate and validate user entries and provide useful feedback to users and redirect them to natural landing points in the application.
Code Agents run by the ?OpenAgent URL command to perform powerful actions and produce reports from Domino data, and learn different ways that a browser can run the ?OpenAgent command.
Debug Agent code and add run time error handling routines as well as how to analyze Agent-specific browser errors.
Define the key components and protocols of Web Services technology.
Use Web Services Explorer to perform basic testing of a Web Service.
Describe the differences between the various Web Services programming models and SOAP message formats as they apply to Web Services design element properties.
Code Web Services using LotusScript that accept simple and complex data types as parameters.
Code a simple Web Services client that runs from a browser and uses a SOAP toolkit.
Import a WSDL to create a LotusScript library that can be used by Notes or Domino to consume a Web Service.
Debug Web Services provider and client code and handle runtime code errors as well as SOAP faults.
Employ the Remote Debugging, Agent Logging, Profiling, and DDM Probe features to fully analyze Agent and Web Service operation and performance.

Lotus Training Audience

This course is designed for experienced programmers well versed in using Domino Designer 8. It assumes that you have:

thorough knowledge of the Domino Designer 8 development environment, including Form and View design, as well as how to use properties boxes, and how to set the ACL
mastered the Topics covered in these courses:
Domino Designer 8: Basic Notes Applications
Domino Designer 8: Basic Browser Applications
knowledge of Web technologies, including servers, browsers, HTML, Cascading Style Sheets, and some basic JavaScript.

While mastery is not expected, you should have a working understanding of LotusScript and the various Notes product objects.

This course is part of a series of Domino Designer 8 training courses. Follow these paths to master all aspects of developing applications using Domino Designer:

Domino Designer 8: Basic Notes Applications provides the base knowledge for this additional training:

Client Track

Configure Domino to use DB2 as a database engine and build applications that access relational data, DB2 for Domino 8 Administrators and Developers.
Specialize in programming Notes applications to respond to built-in user interface features, Domino Designer 8: Special Notes Features.
Convert an application written for Notes clients to be used in browsers, Domino Designer 8: Basic Browser Applications.
Provide data to cutting-edge Web applications, Domino Designer 8: Web Agents and Web Services.

Language Track. These languages apply to both Notes and browser clients:

Learn sophisticated application techniques that fully exploit the formula language in Domino Designer 8: Formula Language.
Develop sophisticated applications and Agents with LotusScript in Domino Designer 8: LotusScript.
Add powerful client-side scripting to browser applications in Domino Designer 8: JavaScript.

Course design

This is a lecture/lab course that follows a task-oriented approach. During the many course exercises you will create a working application from the ground up. As you learn about various aspects of Domino Designer, you will immediately apply the concepts and techniques as you work on your application.

Lotus Training Course duration

2 days

Lotus Training Course outline

Topic 1: Introduction

Agents

Web Services

What follows

Exercise: Create demonstration database

Topic 2: WebQueryOpen Event Agents

Form computation sequence

Step 1: Create the Agent and set its properties

Step 2: Code the Agent

Step 3: Call the Agent from the Forms WebQueryOpen event

Agent authority

Step 4: Set the Agent properties Security tab options

Who can run the Agent

Database ACL

Exercise: Set default email address in Review form

Agents and document access Fields

Prevent Agents from being run out of context

Exercise: Prevent Agents from being run out of context

Topic 3: WebQuerySave Event Agents

Form computation sequence

$$Return or WebQuerySave event?

Create WebQuerySave Agent

Print statements

When Print statements are ignored

Stop document from being saved

Exercise: Part Form validation

Topic 4: Web Agents

Create a Web Agent

Run Web Agents

Agent context versus document context

Agent ouput

Pass argument(s) to a Web Agent

Parse URL arguments

@Command([RunAgent])

Exercise: Browser-based reporting

Example: I forgot my password Web Agent

Example: Download view in Excel Web Agent

Topic 5: Web Agent Error Handling

WebQueryOpen event Agents

WebQueryClose event Agents and Web Agents

Runtime error handling

Web server response codes

Common 4xx and 5xx response codes

Agent-specific browser errors

HTTP server performance and Agents run by browsers

Topic 6: Web Services Concepts

Web Services basics

Definitions

Domino 8 and Web Services

What Web Services are publicly available?

Testing a Web Service

Exercise: Web Services Explorer

SOAP programming models and formats

Exercise: Multiple, detailed stock quotes

Web Services versus Web Agents

Web Services clients

Topic 7: Web Service Properties

Domino-based Web Service from Web Services Explorer

Create Web Service design element

Import WSDL file

Web Service properties and the WSDL

Show WSDL

Basics tab

Advanced tab

Security tab

Alternative security model

Get Domino Web Service information from a browser

Domino-based Web Service from browser

Topic 8: Web Service Programmers Pane

Code the operations

Web Service context

Resulting WSDL

WSDL from the client perspective

Greeting Web Service code

Simple data types for request and response parameters

Explicit data type conversion

Multiple request parameters

Complex data types

Web Service accepts an array as parameter

Web Service responds with array

Topic 9: Consume Web Services

PocketSOAP Examples page

VBScript

PocketSOAP

Greetings from Domino button

Exercise: Understand lookup examples

Send array to Web Service

Receive array from Web Service

Class objects

Exercise: Save changes to a Part

Notes, LotusScript, and PocketSOAP

Notes/Domino native Web Service consumers

Topic 10: Web Service Error Handling

SOAP faults

SOAP Fault Example page

Web Service-side error handling

Client-side error handling of VBScript errors

Web Service system-generated SOAP faults

Web Service developer-defined SOAP faults

Client-side error handling of a SOAP fault

Topic 11: Remote Debugging, Logging, and Profiling

Remote LotusScript Debugger

Java debugger support

Domino Server Log

Private Agent log

Agent Log database

Agent performance and Agent Profiling

DDM Application Probes

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