Mobile app master class - Session 2.pptx
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The document outlines a master class focused on complex synchronization patterns and delta syncing, scheduled for January 18, 2025. It includes details on joining the Outsystems developer school and research program, along with a technical agenda for the event. Various strategies for optimizing read-write operations and handling data synchronization between devices and servers are also discussed.
Mobile app master class - Session 2.pptx
- 1. Master Class 2: Diving Deeper: Complex Sync Patterns and Delta Syncing Saturday, 18 Jan 2025 3:00 PM to 4 :30 PM
- 2. 2 Learn, ask questions, access reusable apps, share ideas, and connect with other OutSystems developers around the world. Follow us at : outsystems.com/community usergroups.outsystems.com outsyste.ms/champions outsyste.ms/mvp OutSystems Community
- 3. 6 Join the OutSystems Developer School 1. Sign Up 2. Participate 3. Get Certified → → Unlock your potential with OutSystems Developer Schools! Enroll today to complete comprehensive training and earn free vouchers for certifications, empowering you to excel in low-code development. outsystems.com/developer_school/ Apply to join the OutSystems Developer School Attend a live instructor led training on ODC or OutSystems Reactive Receive voucher to complete OutSystems certifications
- 4. 7 Join the OutSystems Research Program 1. Sign Up 2. Participate 3. Get Rewarded → → Get involved in Product Development! Share your thoughts and opinions with us by participating in our research activities. You’ll be invited to contribute to the design decisions that really fit users' needs and help us build the future of software development. outsystems.com/our-community/research- program/ Apply to join the OutSystems Research Program Take part in a study you’ve matched with Receive compensation or a small gift for sharing your thoughts
- 5. Organizers Krishnnambal S OSUG Chennai OutSystems MVP Manager @ Xebia Hathimary A OSUG Chennai OutSystems Champion Architect @ Aaseya 7
- 7. 9 Agenda 1. Welcome & Introduction 2. Technical Discussion 3. Quiz 4. Event Wrap Up
- 8. Diving Deeper: Complex Sync Patterns and Delta Syncing
- 9. Read-Write, One-to-Many Data 1 1. Check local data on primary table for new, updated and deleted 11
- 10. Read-Write, One-to-Many Data 1. Check local data on primary table for new, updated and deleted 2. Check local data on foreign table for new, updated and deleted 2 12
- 11. Read-Write, One-to-Many Data 3 1. Check local data on primary table for new, updated and deleted 2. Check local data on foreign table for new, updated and deleted 3. On server, create new data 13
- 12. Read-Write, One-to-Many Data 1. Check local data on primary table for new, updated and deleted 2. Check local data on foreign table for new, updated and deleted 3. On server, create new data 4. Create dictionary with primary Ids 4 14
- 13. Read-Write, One-to-Many Data 1. Check local data on primary table for new, updated and deleted 2. Check local data on foreign table for new, updated and deleted 3. On server, create new data 4. Create dictionary with primary Ids 5. Update rows received from device with the new ids in the dictionary 15 5
- 14. Read-Write, One-to-Many Data 6. Add, update and delete foreign entity in the server 16 3
- 15. Read-Write, One-to-Many Data 7 6. Add, update and delete foreign entity in the server 7. Send both entities to the device 17
- 16. Read-Write, One-to-Many Data 8,1 0 6. Add, update and delete foreign entity in the server 7. Send both entities to the device 18 8. Delete the foreign entity in the device 9. Delete the primary entity in the device 10. Add all data for primary entity received from the server
- 17. Read-Write, One-to-Many Data 9,1 1 6. Add, update and delete foreign entity in the server 7. Send both entities to the device 19 8. Delete the foreign entity in the device 9. Delete the primary entity in the device 10. Add all data for primary entity received from the server 11. Add all data for foreign entity received from the server
- 18. How to avoid this complexity??? 20
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- 23. GUID reduce complexity but how to optimize Performance 25
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- 27. Read-Write (optimized) 1 29 Initial Setup before implementing the optimization. 1. Create a Static Entity - To store entities that need to be synchronized.
- 28. Read-Write (optimized) 2 30 Initial Setup before implementing the optimization. 2. Create a local Storage Entity - to store the Last Sync Time with Identifier as SyncEntities
- 29. 3. Create a action to fetch the last sync time Read-Write (optimized) 31 Initial Setup before implementing the optimization. 3 Company 2 Pm
- 30. Read-Write (optimized) 32 Initial Setup before implementing the optimization. 4. In the server entity, create an attribute called "UpdatedTime." ● Data Type: DateTime ● Default Value: CurrDateTime() ● Note: Ensure that this attribute is updated in all CRUD operations of the entity. 4
- 31. Read-Write (optimized) 33 Initial Setup before implementing the optimization. We have completed the initial setup for optimization; now, let's begin the optimization process.
- 32. Read-Write (optimized) 1. Get device last sync Date Time from local storage. 1 34 Implementing the optimization.
- 33. Read-Write (optimized) 1. Get device last sync Date Time from local storage. 2 35 Implementing the optimization. 2. In the server action, insert, update, and delete records from local storage to the server. Note: Ensure that in all Create or update operations, the "UpdatedTime" attribute is updated to CurrDateTime().
- 34. Read-Write (optimized) 1. Get device last sync Date Time from local storage. 2 36 Implementing the optimization. 2. In the server action, insert, update, and delete records from local storage to the server. Note: Ensure that in all Create or update operations, the "UpdatedTime" attribute is updated to CurrDateTime().
- 35. Read-Write (optimized) 1. Get device last sync Date Time from local storage. 3 37 Implementing the optimization. 2. In the server action, pass the "Last Sync DateTime," and ensure that in all CRUD operations, the "UpdatedTime" attribute is updated to CurrDateTime. 3. Fetch only the newly created or modified records since the Last Sync Time. Assign the new SyncTime as CurrDateTime() in the output parameter.
- 36. Read-Write (optimized) 1. Get device last sync Date Time from local storage. 4 38 Implementing the optimization. 4. Delete all the newly created records. and create records fetched from the server action 2. In the server action, pass the "Last Sync DateTime," and ensure that in all CRUD operations, the "UpdatedTime" attribute is updated to CurrDateTime. 3. Fetch only the newly created or modified records since the Last Sync Time.
- 37. Read-Write (optimized) 5. Update the Last Sync Time In Local Database Note Make Sure you pass the Same Sync Entitiy Id which is used to fetch the last sync time. 5 39 Implementing the optimization.
- 38. Read-Write (optimized) Case - 1 (Soft Delete, delete the records from local storage ) Filter out the created and deleted records, then create or delete them accordingly: ● For created records, insert them into the database. ● For deleted records, remove them from the database. 4 40 Implementing the optimization. Delete cases Condition to check if the record exists in the local database : Empty
- 39. Case - 2 (Soft Delete, Update the records in local storage ) All the records will get updated with the IsActive flag to True or False accordingly. Read-Write (optimized) 41 Implementing the optimization. Delete cases
- 40. Questions?
- 41. Thank you
- 42. Thank You
Editor's Notes
- #1: Welcome everyone to the User Group Event High code to low code a journey from stone age to digital age.
- #9: Todays following Agenda will be in order Welcome High Code v/s Low Code Transformation High code to Low code Demo-Build App in Low code( OutSystems Platform) Q & A (Question Round) Networking Lets start with