REST API Validation with Express Course (How To)

Explore how to validate data on the server using a REST API developed with Node.js and Express. The API will allow you to create a user account and retrieve a list of user accounts.

The Importance of Data Validation

As developers, we should strive to create applications that ensure that data created and updated by our users is useful.

Chevron 6 steps

• instruction

  What is Data Validation?

• instruction

  Get Started with the Project

• instruction

  Review the Routes

• instruction

  Test the Routes

• instruction

  Further Testing the New User Account Route

• Data Validation Review

  5 questions

Validating Data

Define data validation for required fields to ensure that new users provide those values. And learn ways to go further with validation using a data validation library or an object-relational mapping library (ORM) like Sequelize.

Chevron 7 steps

• instruction

  Define Data Validation Requirements

• instruction

  Return Validation Error Messages

• instruction

  Test Validation Rules in Postman

• instruction

  Format Validation Error Messages

• instruction

  Explore Data Validation Types

• instruction

  Next Steps: Expand Data Validation Requirements

• Validating Data Review

  5 questions