Javascript Async Example

Async implementations with

• Native async
• Callbacks
• co library
• async library
• Promises

Task for implementation

• Load item from DB
• Get update for item
• Get image for item
• Save updated item into DB
• Generate report and image and retrieve them instead one request for each

Implementations

• 001 - One item
• 002 - One item with report
• 003 - One Item with report and image
• 004 - All Items
• 005 - Wait for report
• 006 - Parallel processing
• 007 - Final result with error handling and other

Limitations

• fetch stub function is not implemented fully, need to implement stub result depending on request

Benchmark

Run node benchmark.js for real test or see benchmark.txt for exists benchmark result (Tested on 2,2 GHz Intel Core i7)