openapi-generators / openapi-generators/openapi-python-client

Getting "Invalid YAML from provided source" error although it worked with Postman and the spec format is JSON

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Description

I am trying to generate a client for an OpenAPI JSON file but I am getting an error although Postman was able to generate a endpoints:
"Error(s) encountered while generating, client was not created
Invalid YAML from provided source: mapping values are not allowed in this context"

This is the link to the OpenAPI spec: https://github.com/sourcenetwork/defradb/blob/develop/docs/website/references/http/openapi.json

Desktop (please complete the following information):

  • OS: Windows 11
  • Python Version: 3.12.5
  • openapi-python-client version: 0.21.2

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First steps

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Research direction

Download the linked openapi.json and reproduce the failure with openapi-python-client 0.21.2 on Python 3.12.5, then inspect how the generator parses the provided JSON versus YAML. Done means the linked specification is accepted and client generation completes without the reported parsing error.

Written by the indexing model from the issue text.

Assessment

Tech stack
openapi, python
Domain
tooling
Issue type
Bug
Difficulty
3/5
Estimated time
1-2 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
35/100

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