Node.js Best Practices

Presentation about Node.js Best Practices presented at Nodebp.

http://risingstack.com

Transcript

1. Node.js Best Practices
   Gergely Nemeth
   @nthgergo
   

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2. $ whoami
   Work - RisingStack
   Twitter - @nthgergo
   GitHub - gergelyke
   Stuff I write - http://blog.risingstack.com
   

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3. Why talking about best practices?
   

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4. Why talking about best practices?
   

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5. Why talking about best practices?
   

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6. Coding style
   

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7. Coding style
   - Callback convention
   

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8. Coding style
   - Callback convention
   - Always check for errors in callbacks
   

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9. Coding style
   - Callback convention
   - Always check for errors in callbacks
   - Return on callbacks
   

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10. Coding style
    - Callback convention
    - Always check for errors in callbacks
    - Return on callbacks
    - Try-catch in sync code only
    

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11. Handling errors
    Operational errors vs. Programmer errors
    

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12. Handling Operational Errors
    ● Try to solve the error - if a file is missing, you may need to create one first
    ● Retry the operation, when dealing with network communication
    ● Tell the client, that something is not ok - used, when handling user inputs
    ● Crash the process, when the error condition is unlikely to change on its own,
    like the application cannot read its configuration file
    

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13. Handling Programmer Errors
    Crash immediately.
    (Let supervisor/monit/forever do its job)
    

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14. On Workflow
    Start a new project with npm init
    

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15. On Workflow
    Specify a start and test script
    

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16. On Workflow
    Environment variables
    (NODE_ENV)
    

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17. On Workflow
    Use a style guide
    (https://github.com/RisingStack/node-style-guide)
    

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18. On Workflow
    Enforce the style guide
    (npm install --save-dev pre-commit)
    

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19. Configuration
    JS over JSON for configuration
    

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20. Operating Node
    

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21. Operating Node
    sudo
    

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22. In case you want to learn Node.js with us...
    Node.js Essentials & Best Practices training
    Contact us at gergely@risingstack.com
    

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23. iojs -p "console.log('Questions?')"
    

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