Preface

11

Structure of the Book

11

Chapter 1: Getting Started

11

Chapter 2: Developing Applications

12

Chapter 3: Consuming External APIs

13

Chapter 4: Operating Applications

14

Chapter 5: Next Steps

14

Acknowledgments

15

1 Getting Started

17

1.1 SAP BTP, Cloud Foundry Environment

18

1.1.1 Overview

18

1.1.2 Provisioning a Trial SAP BTP, Cloud Foundry Tenant

20

1.1.3 Managing an Enterprise SAP BTP, Cloud Foundry Environment

26

1.2 SAP BTP, ABAP Environment

28

1.2.1 Overview

29

1.2.2 Provisioning a Trial SAP BTP, ABAP Environment

31

1.2.3 Provisioning an Enterprise SAP BTP, ABAP Environment

37

1.3 ABAP Development Tools for Eclipse

38

1.3.1 Installation and Initial Setup

39

1.3.2 Views

45

1.4 Identity and Access Management

48

1.4.1 Administration Launchpad

48

1.4.2 Maintaining Business Roles

50

1.4.3 Maintaining Business Users

52

1.5 Summary

55

2 Developing Applications

57

2.1 ABAP RESTful Application Programming Model

58

2.1.1 Evolution of the ABAP RESTful Application Programming Model

58

2.1.2 Key Elements of the ABAP RESTful Application Programming Model

63

2.1.3 Architecture of the ABAP RESTful Application Programming Model

64

2.1.4 Application Scenarios

69

2.1.5 SAP Cloud Application Programming Model versus the ABAP RESTful Application Programming Model

75

2.2 Working with the Development Environment

75

2.2.1 Setting Up an ABAP Cloud Project

76

2.2.2 Setting Up SAP Business Application Studio

77

2.3 SAP Fiori Application Development in SAP Business Application Studio

80

2.3.1 Creating Persistent Database Tables

81

2.3.2 Creating a Custom Class to Insert Values into the Table

82

2.3.3 Creating CDS Views on the Table

83

2.3.4 Defining and Exposing an OData Service

86

2.3.5 Creating a Service Binding

87

2.3.6 Developing the User Interface

93

2.4 Developing an Application: Managed Scenario

100

2.4.1 Transactional Application Development in a Managed Scenario

101

2.4.2 Screen Validation in a Managed Scenario

114

2.5 Developing an Application: Managed Scenario with Draft Support

120

2.6 Developing an Application: Unmanaged Scenario

130

2.7 Backend Service Development

145

2.8 Setting Up an API Release State

147

2.9 Deploying an Application to SAP BTP, ABAP Environment

149

2.10 Custom Entities in the ABAP RESTful Application Programming Model

155

2.11 Advanced Development Techniques

164

2.11.1 XCO Library

165

2.11.2 RAP Generator

169

2.12 Summary

173

3 Consuming External APIs

175

3.1 Connecting to On-Premise SAP Systems

176

3.1.1 Configuring the HTTP and RFC Connection to an On-Premise System

176

3.1.2 Consuming the RFC Function Module

184

3.1.3 Consuming the OData Service from the Backend

186

3.1.4 Consuming the SOAP Web Service

192

3.1.5 Inbound RFC Concepts

198

3.2 Connecting to Cloud Systems

213

3.2.1 SAP API Business Hub

213

3.2.2 Consuming an SAP S/4HANA Cloud System API

217

3.3 SAP Business Technology Platform Services

222

3.3.1 APIs from the SAP API Business Hub

222

3.3.2 Implementation Examples

225

3.4 Services on Non-SAP Platforms

228

3.4.1 IBM Watson Visual Recognition API

229

3.4.2 IBM’s The Weather Company APIs

233

3.4.3 IBM Watson Assistant

235

3.4.4 IBM Watson Speech-to-Text and Text-to-Speech APIs

237

3.4.5 IBM Watson Language Translator API

239

3.4.6 IBM Watson Discovery

243

3.4.7 Amazon Textract API

245

3.4.8 APIs from Other Providers

247

3.5 Summary

250

4 Operating Applications

251

4.1 Application Lifecycle Management

251

4.1.1 Git

252

4.1.2 abapGit and gCTS

253

4.1.3 Custom Code Transformation Using abapGit

256

4.1.4 Manage Software Components App

267

4.2 Monitoring

273

4.2.1 Debugging ABAP Applications

274

4.2.2 Technical Monitoring Cockpit

278

4.2.3 SQL Trace

279

4.2.4 Authorization Model, Business Roles, and Authorization Trace

282

4.2.5 IAM Reporting

290

4.3 Security Management

292

4.3.1 Maintaining the Certificate Trust List

292

4.3.2 Maintaining Clickjacking Protection

293

4.3.3 Managing Content Security

295

4.4 Application Jobs

296

4.5 Summary

302

5 Next Steps

303

5.1 Future Roadmap

303

5.2 Summary

305