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35 lines
1.0 KiB
Python
35 lines
1.0 KiB
Python
import argparse
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import json
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import sys
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import yaml
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from uvicorn.importer import import_from_string
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parser = argparse.ArgumentParser(prog="extract_openapi.py")
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parser.add_argument("app", help='App import string. Eg. "main:app"', default="main:app")
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parser.add_argument("--app-dir", help="Directory containing the app", default=None)
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parser.add_argument(
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"--out", help="Output file ending in .json or .yaml", default="openapi.yaml"
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)
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if __name__ == "__main__":
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args = parser.parse_args()
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if args.app_dir is not None:
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print(f"adding {args.app_dir} to sys.path")
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sys.path.insert(0, args.app_dir)
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print(f"importing app from {args.app}")
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app = import_from_string(args.app)
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openapi = app.openapi()
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version = openapi.get("openapi", "unknown version")
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print(f"writing openapi spec v{version}")
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with open(args.out, "w") as f:
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if args.out.endswith(".json"):
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json.dump(openapi, f, indent=2)
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else:
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yaml.dump(openapi, f, sort_keys=False)
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print(f"spec written to {args.out}")
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