javaregexspring-bootswagger-editorswagger-3.0

Regular Expression for Swagger3 in java. Allowed string with comma separated value

I was trying to write regular expression for string variable in swagger3(OAS).

The string can have multiple comma separated string. Each string's length can be between 5 and 15 and each character in a string can be either a-z or A-Z or 0-9.

I tried this one [a-zA-Z0-9]{5,15}. This one does not work as expected

For example Valid String eg

  1. 3OMYJF5V11MJL,3OMYJF5V11MOP
  2. 3OMYJF,3OMYJim,3OMYJF090

Invalid eg:

  1. ??
  2. 123
  3. 123456789098765432
Solution

  • You could use:

    ^[a-zA-Z0-9]{5,15}(?:,[a-zA-Z0-9]{5,15})*$

    Explanation

    Regex demo