1. Custom APIs with
PowerApps and Microsoft
Flow
Malin De Silva
MVP, Office Servers and Services

2. Malin De Silva
Email : malindesilva@live.com
Twitter : Malind19
Facebook : Malin De Silva
LinkedIn : Malin De Silva
• MVP for Office Servers and
Services.
• SharePoint Specialist with
experience since SharePoint
2007.
• MCSD, SharePoint Apps.
• Speaker at many conferences
and meetups.

3. Agenda
• PowerApps Recap
• Why Custom API?
• Using Custom APIs
• Microsoft Flow

4. PowerApps Recap
• Apps that run on Mobile and Web
• Built using a Windows 10 App or Browser
• Access through PowerApps App or Web
• Connectivity for multiple services and Custom APIs
• On-premises connectivity through gateways

5. Business Application
Platform Innovation
• Power Users
• Professional Developers
• The Microsoft Common Data Model
• Connectors and Gateways

6. Why Custom APIs?
• Services not supported
• Custom logic and interactions
• Impersonations and custom authentication rules

7. Easy Steps
1. Create Swagger file
2. Add connection to custom API
3. Add custom API to Flow and App
4. Share the custom API

8. DEMONSTRATION
Creating a Custom API with Visual Studio and Azure

9. Quota and Throttling
• Up to five APIs per a PowerApps account
• Up to 500 requests per minute on each custom API
• Deleting the custom API deletes all the connections to the
API

10. Microsoft Flow
• Utilizes IFTTT Saas implementation
• Available templates as well as new templates
• Hosted on Azure App Services
• Many services in integrated with SharePoint lists and
libraries(in future)

11. Supported Services

12. In-built templates

13. DEMONSTRATION
Automation with Microsoft Flow

14. Pros and Cons
Pros
• Easily create cross site or cross
tenant Flows
• Cross application Flows
• Templates : Leverage or Build
• Recurring Flows
• User Profile Properties
Cons
• Public Preview mode
• Its personal; actions are ran using your
connections including any created items,
emails send are using your credentials
• Cannot trigger a secondary Flow from the
primary Flow
• Reordering of steps not possible; requires
deleting and recreating to insert another
Step
• Error on Twitter REST API max
connections (by app, not user)
Content credits: Jennifer Pearcey

15. Questions?
Thank You
Email : malindesilva@live.com
Twitter : Malind19
Facebook : Malin De Silva
LinkedIn : Malin De Silva