title: Generating SDKs
description: Generate client SDKs from your JustAPI OpenAPI schema for multiple languages.
keywords: [JustAPI, SDK generation, OpenAPI, client generation, code generation]

Automatic OpenAPI Schema

JustAPI generates an OpenAPI 3.1 schema at /openapi.json:

curl http://localhost:8000/openapi.json

Generate Python Client

pip install openapi-generator-cli

openapi-generator-cli generate \
  -i http://localhost:8000/openapi.json \
  -g python \
  -o ./clients/python

Generate TypeScript Client

openapi-generator-cli generate \
  -i http://localhost:8000/openapi.json \
  -g typescript-axios \
  -o ./clients/typescript

Available Languages

Custom ID Function

Customize operation IDs for better SDK generation:

from justapi import JustAPIApp

def custom_id(operation):
    return f"{operation.tags[0]}_{operation.name}" if operation.tags else operation.name

app = JustAPIApp(generate_unique_id_function=custom_id)

See Also

• OpenAPI Callbacks & Webhooks — outbound schemas
• Additional Responses in OpenAPI — error docs
• Metadata & Docs URLs — app metadata