Data Validation (Schema Validation)

Card Puncher Data Processing


Data Validation is:

To be able to validate, a schema must be available for the data been validated.

The schema may be:

  • implicit: defined in specification (ie an email, a telefoon)
  • explicit: defined in a file or api.

Data validation is also known as schema validation

Send strict accept strict.

  • You should not accept bad inputs
  • send lax is a protocol violation.

strict is a reference to the strict keyword in javascript


Regular expression

Data validation with regular expression is regularly done with Lookahead pattern

False Assumption about data type (time, …)


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