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feat: openapi ui for api exploration (#3041)
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,218 @@ | ||
| import json | ||
| from typing import Any, Dict, Optional | ||
|
|
||
| from starlette.responses import HTMLResponse | ||
|
|
||
| swagger_ui_default_parameters: Dict[str, Any] = { | ||
| "dom_id": "#swagger-ui", | ||
| "layout": "BaseLayout", | ||
| "deepLinking": True, | ||
| "showExtensions": True, | ||
| "showCommonExtensions": True, | ||
| } | ||
|
|
||
|
|
||
| def get_swagger_ui_html( | ||
| *, | ||
| openapi_url: str = "/schema", | ||
| title: str, | ||
| swagger_js_url: str = "https://cdn.jsdelivr.net/npm/swagger-ui-dist@5.9.0/swagger-ui-bundle.js", | ||
| swagger_css_url: str = "https://cdn.jsdelivr.net/npm/swagger-ui-dist@5.9.0/swagger-ui.css", | ||
| swagger_favicon_url: str = "/favicon.ico", | ||
| oauth2_redirect_url: Optional[str] = None, | ||
| init_oauth: Optional[str] = None, | ||
| swagger_ui_parameters: Optional[Dict[str, Any]] = None, | ||
| ) -> HTMLResponse: | ||
| """ | ||
| Generate and return the HTML that loads Swagger UI for the interactive API | ||
| docs (normally served at `/docs`). | ||
| """ | ||
| current_swagger_ui_parameters = swagger_ui_default_parameters.copy() | ||
| if swagger_ui_parameters: | ||
| current_swagger_ui_parameters.update(swagger_ui_parameters) | ||
|
|
||
| html = f""" | ||
| <!DOCTYPE html> | ||
| <html> | ||
| <head> | ||
| <link type="text/css" rel="stylesheet" href="{swagger_css_url}"> | ||
| <link rel="shortcut icon" href="{swagger_favicon_url}"> | ||
| <title>{title}</title> | ||
| </head> | ||
| <body> | ||
| <div id="swagger-ui"> | ||
| </div> | ||
| <script src="{swagger_js_url}"></script> | ||
| <!-- `SwaggerUIBundle` is now available on the page --> | ||
| <script> | ||
| const ui = SwaggerUIBundle({{ | ||
| url: '{openapi_url}', | ||
| """ | ||
|
|
||
| for key, value in current_swagger_ui_parameters.items(): | ||
| html += f"{json.dumps(key)}: {json.dumps(value)},\n" | ||
|
|
||
| if oauth2_redirect_url: | ||
| html += f"oauth2RedirectUrl: window.location.origin + '{oauth2_redirect_url}'," | ||
|
|
||
| html += """ | ||
| presets: [ | ||
| SwaggerUIBundle.presets.apis, | ||
| SwaggerUIBundle.SwaggerUIStandalonePreset | ||
| ], | ||
| })""" | ||
|
|
||
| if init_oauth: | ||
| html += f""" | ||
| ui.initOAuth({json.dumps(init_oauth)}) | ||
| """ | ||
|
|
||
| html += """ | ||
| </script> | ||
| </body> | ||
| </html> | ||
| """ | ||
| return HTMLResponse(html) | ||
|
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||
|
|
||
| def get_redoc_html( | ||
| *, | ||
| openapi_url: str, | ||
| title: str, | ||
| redoc_js_url: str = "https://cdn.jsdelivr.net/npm/redoc@next/bundles/redoc.standalone.js", | ||
| redoc_favicon_url: str = "/favicon.ico", | ||
| with_google_fonts: bool = True, | ||
| ) -> HTMLResponse: | ||
| """ | ||
| Generate and return the HTML response that loads ReDoc for the alternative | ||
| API docs (normally served at `/redoc`). | ||
| """ | ||
| html = f""" | ||
| <!DOCTYPE html> | ||
| <html> | ||
| <head> | ||
| <title>{title}</title> | ||
| <!-- needed for adaptive design --> | ||
| <meta charset="utf-8"/> | ||
| <meta name="viewport" content="width=device-width, initial-scale=1"> | ||
| """ | ||
| if with_google_fonts: | ||
| html += """ | ||
| <link href="https://fonts.googleapis.com/css?family=Montserrat:300,400,700|Roboto:300,400,700" rel="stylesheet"> | ||
| """ # noqa: E501 | ||
| html += f""" | ||
| <link rel="shortcut icon" href="{redoc_favicon_url}"> | ||
| <!-- | ||
| ReDoc doesn't change outer page styles | ||
| --> | ||
| <style> | ||
| body {{ | ||
| margin: 0; | ||
| padding: 0; | ||
| }} | ||
| </style> | ||
| </head> | ||
| <body> | ||
| <noscript> | ||
| ReDoc requires Javascript to function. Please enable it to browse the documentation. | ||
| </noscript> | ||
| <redoc spec-url="{openapi_url}"></redoc> | ||
| <script src="{redoc_js_url}"> </script> | ||
| </body> | ||
| </html> | ||
| """ | ||
| return HTMLResponse(html) | ||
|
|
||
|
|
||
| # Not needed now but copy-pasting for future reference | ||
| def get_swagger_ui_oauth2_redirect_html() -> HTMLResponse: | ||
| """ | ||
| Generate the HTML response with the OAuth2 redirection for Swagger UI. | ||
| You normally don't need to use or change this. | ||
| """ | ||
| # copied from https://github.com/swagger-api/swagger-ui/blob/v4.14.0/dist/oauth2-redirect.html | ||
| html = """ | ||
| <!doctype html> | ||
| <html lang="en-US"> | ||
| <head> | ||
| <title>Swagger UI: OAuth2 Redirect</title> | ||
| </head> | ||
| <body> | ||
| <script> | ||
| 'use strict'; | ||
| function run () { | ||
| var oauth2 = window.opener.swaggerUIRedirectOauth2; | ||
| var sentState = oauth2.state; | ||
| var redirectUrl = oauth2.redirectUrl; | ||
| var isValid, qp, arr; | ||
| if (/code|token|error/.test(window.location.hash)) { | ||
| qp = window.location.hash.substring(1).replace('?', '&'); | ||
| } else { | ||
| qp = location.search.substring(1); | ||
| } | ||
| arr = qp.split("&"); | ||
| arr.forEach(function (v,i,_arr) { _arr[i] = '"' + v.replace('=', '":"') + '"';}); | ||
| qp = qp ? JSON.parse('{' + arr.join() + '}', | ||
| function (key, value) { | ||
| return key === "" ? value : decodeURIComponent(value); | ||
| } | ||
| ) : {}; | ||
| isValid = qp.state === sentState; | ||
| if (( | ||
| oauth2.auth.schema.get("flow") === "accessCode" || | ||
| oauth2.auth.schema.get("flow") === "authorizationCode" || | ||
| oauth2.auth.schema.get("flow") === "authorization_code" | ||
| ) && !oauth2.auth.code) { | ||
| if (!isValid) { | ||
| oauth2.errCb({ | ||
| authId: oauth2.auth.name, | ||
| source: "auth", | ||
| level: "warning", | ||
| message: "Authorization may be unsafe, passed state was changed in server. The passed state wasn't returned from auth server." | ||
| }); | ||
| } | ||
| if (qp.code) { | ||
| delete oauth2.state; | ||
| oauth2.auth.code = qp.code; | ||
| oauth2.callback({auth: oauth2.auth, redirectUrl: redirectUrl}); | ||
| } else { | ||
| let oauthErrorMsg; | ||
| if (qp.error) { | ||
| oauthErrorMsg = "["+qp.error+"]: " + | ||
| (qp.error_description ? qp.error_description+ ". " : "no accessCode received from the server. ") + | ||
| (qp.error_uri ? "More info: "+qp.error_uri : ""); | ||
| } | ||
| oauth2.errCb({ | ||
| authId: oauth2.auth.name, | ||
| source: "auth", | ||
| level: "error", | ||
| message: oauthErrorMsg || "[Authorization failed]: no accessCode received from the server." | ||
| }); | ||
| } | ||
| } else { | ||
| oauth2.callback({auth: oauth2.auth, token: qp, isValid: isValid, redirectUrl: redirectUrl}); | ||
| } | ||
| window.close(); | ||
| } | ||
| if (document.readyState !== 'loading') { | ||
| run(); | ||
| } else { | ||
| document.addEventListener('DOMContentLoaded', function () { | ||
| run(); | ||
| }); | ||
| } | ||
| </script> | ||
| </body> | ||
| </html> | ||
| """ # noqa: E501 | ||
| return HTMLResponse(content=html) |