Swagger Editor generated python-flask null type error

Question

I created my rest-ful api endpoint documentation on Swagger hub/Swagger editor. I have python-sanic based restful api endpoints. I'm generate and run python-flask server but I received error message.

Uncaught TypeError: Swagger 2.0 does not support null types ([object Object]).

I have investigated this problem but have not found a result for the solution.

Please post your Swagger definition so that others can try to reproduce your issue. — Helen
– Helen, Commented Aug 15, 2018 at 7:31
Do you happen to have type: null somewhere in the spec? In that case, the error message is correct - OpenAPI/Swagger 2.0 does not support nulls. — Helen
– Helen, Commented Aug 15, 2018 at 7:34
Oh, I'm sorry, I checked my .YAML file and remove null fields, problem resolved. Thanks, my mistake :) — rootturk
– rootturk, Commented Aug 15, 2018 at 7:42

Helen · Accepted Answer · 2018-08-15 08:12:19Z

2

The error message in the browser console:

Swagger 2.0 does not support null types

implies that you have type: null somewhere in your API definition. OpenAPI/Swagger 2.0 does not support nulls.

If you need nullable types, use OpenAPI 3.0 which supports nullable: true.

answered Aug 15, 2018 at 8:12

Helen

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