How to write this regex pattern in Swagger?

Question

How to properly define the following regex pattern using Swagger Node.js annotations?

 *       reviews_ratings_description:
 *         type: string
 *         minimum: 10
 *         maximum: 50
 *         pattern: "^[ a-zA-Z0-9](?!,.*?[^\na-zA-Z0-9!”$%&~^&#<>.?:"'’=@()*\+,\/;\[\\\]\-^_`{|}~]{1}).*?[a-zA-Z0-9!”$%&~^&#<>.?:"'’=@()*\+,\/;\\\\]\-^_`{|}~]$"    

Running the code above produces the following error:

{"error":{},"level":"error","message":"uncaughtException: YAMLException: can not read an implicit mapping pair; a colon is missed at line 42, column 159:\n     ... \"'’=@()*\\+,\\/;\\[\\\\\\]\\-^_`{|}~]$'\n

Does the pattern string need to be escaped somehow?

Answer 1

Your Pattern contains ", that can't work.

You have to escape the inner quotes by using a backslash in front like \\".

Answer 2

you need to write it in the following pattern:

 pattern: ^([a-zA-Z0-9_=]+)\.([a-zA-Z0-9_=]+)\.([a-zA-Z0-9_\-\+\/=]+)$

and if I take your example you should remove the " from your regex:

 pattern: ^[ a-zA-Z0-9](?!,.*?[^\na-zA-Z0-9!”$%&~^&#<>.?:"'’=@()*\+,\/;\[\\\]\-^_`{|}~]{1}).*?[a-zA-Z0-9!”$%&~^&#<>.?:"'’=@()*\+,\/;\\\\]\-^_`{|}~]$ 

TIP: use one of the online regex build/test -> https://regex101.com/ (my favorite)