Created
June 11, 2020 09:34
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Hydra flask example
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| server: | |
| host: 127.0.0.1 | |
| port: 8081 | |
| app: | |
| username: ${env:USER} | |
| flask: | |
| ENV: production | |
| DEBUG: false | |
| TESTING: false | |
| PROPAGATE_EXCEPTIONS: null | |
| PRESERVE_CONTEXT_ON_EXCEPTION: null | |
| SECRET_KEY: null | |
| PERMANENT_SESSION_LIFETIME: datetime.timedelta(days=31) | |
| USE_X_SENDFILE: false | |
| SERVER_NAME: null | |
| APPLICATION_ROOT: / | |
| SESSION_COOKIE_NAME: session | |
| SESSION_COOKIE_DOMAIN: null | |
| SESSION_COOKIE_PATH: null | |
| SESSION_COOKIE_HTTPONLY: True | |
| SESSION_COOKIE_SECURE: false | |
| SESSION_COOKIE_SAMESITE: null | |
| SESSION_REFRESH_EACH_REQUEST: True | |
| MAX_CONTENT_LENGTH: null | |
| SEND_FILE_MAX_AGE_DEFAULT: datetime.timedelta(seconds=43200) | |
| TRAP_BAD_REQUEST_ERRORS: null | |
| TRAP_HTTP_EXCEPTIONS: false | |
| EXPLAIN_TEMPLATE_LOADING: false | |
| PREFERRED_URL_SCHEME: http | |
| JSON_AS_ASCII: True | |
| JSON_SORT_KEYS: True | |
| JSONIFY_PRETTYPRINT_REGULAR: false | |
| JSONIFY_MIMETYPE: application/json | |
| TEMPLATES_AUTO_RELOAD: null | |
| MAX_COOKIE_SIZE: 4093 | |
| hydra: | |
| # disable changing of cwd as it interferes with flask auto-restart | |
| run: | |
| dir: . | |
| # output files creation | |
| output_subdir: null |
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| import hydra | |
| from omegaconf import DictConfig, OmegaConf, open_dict | |
| from flask import Flask | |
| from flask import current_app | |
| app = Flask(__name__) | |
| @app.route("/") | |
| def hello_world(): | |
| cfg = current_app.config["config"] | |
| return f"Hello {cfg.app.username}" | |
| @hydra.main(config_name="config") | |
| def main(cfg: DictConfig): | |
| app.config.from_mapping(cfg.flask) | |
| with open_dict(cfg): | |
| del cfg["flask"] | |
| app.config["config"] = cfg | |
| app.run(host=cfg.server.host, port=cfg.server.port, debug=True) | |
| if __name__ == "__main__": | |
| main() |
I am not really working on web apps and just was just a quick hack.
If you can't make @hydra.main() work for your use case take a look at the Compose API.
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Could you share any pointers on how to extend this to be launched via a wsgi.py file?