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Unnamed ProjectOriginal faults and profits
ExpressJS: Disposable Hero
- Express.js is the most popular Node.js web application framework used today
- Not enough experience to understand our needs
- Easy to jump in
Why did we choose ExpressJS?
ExpressJS: Default architecture
- Routing
- Middlewares
ExpressJS: Key points
ExpressJS: Clean Controllerproblem of overusing
ExpressJS: Clean Controllerproblem of overusing
Data Validators
ExpressJS: Clean Controllerproblem of overusing
Data Validators
Entity Loaders
ExpressJS: Clean Controllerproblem of overusing
Data Validators
Access Control
Entity Loaders
ExpressJS: Clean Controllerproblem of overusing
Data Validators
Access Control
Entity Loaders
Data Mappers
ExpressJS: Clean Controllerproblem of overusing
Data Validators
Access Control
Entity Loaders
Data Mappers
Business Logic
ExpressJS: Clean Controllerproblem of overusing
const controller = {
};
Data Validators
Access Control
Entity Loaders
Data Mappers
Business Logic
validator
middleware
entity loader
access control
data mapper
controller
middleware middleware middleware middleware
ExpressJS: Clean Controllercleaning out - short flow schema
- Load data from source (database)
- Modify request by assigning loaded data to access it from controller
ExpressJS: Clean Controllercleaning out - entity loader schema
ExpressJS: Clean Controllercleaning out - full flow schema
error error error
success success success success
errorerror
success
validator entity loader
access control
data mapper controller
top level error handler
request response
ExpressJS: Clean Controllercleaning out
ExpressJS: Clean Controllercleaning out - using events
Event handler
Module A Module B Module C Controller
request response“Background” functionality
DA - 14 2016
