If all fields required when I issue stateless channel token

[THChen2002]

Summary of Your Question

I encountered an issue while using the issue_stateless_channel_token() function with the channel ID and channel secret for authentication. When I omit the client_assertion_type and client_assertion parameters, an error occurs. However, based on my understanding, these two parameters should only be required when using JWT assertion for authentication. Since I'm not using JWT, I expected the function to work without providing client_assertion_type and client_assertion.

What You've Tried

I pass empty strings '' for both client_assertion_type and client_assertion, the token is issued successfully.

Your Environment

• Python version: 3.12.9
• line-bot-sdk-python version: 3.16.3

[eucyt]

@THChen2002
Sorry for the delayed reply.
issue_stateless_channel_token() function is auto-generated from OpenAPI, and in cases like this—where there are multiple possible patterns of required parameters—it mistakenly treats all variables as mandatory.

As you tried, the workaround is to provide values for all parameters by using empty strings.

We apologize for the inconvenience and appreciate your understanding.