[16.0] base_rest: Define the oauth2 redirect url into swagger ui

base_rest/readme/newsfragments/379.feature

@@ -0,0 +1,7 @@
+Add support for oauth2 security scheme in the Swagger UI. If your openapi
+specification contains a security scheme of type oauth2, the Swagger UI will
+display a login button in the top right corner. In order to finalize the
+login process, a redirect URL must be provided when initializing the Swagger
+UI. The Swagger UI is now initialized with a `oauth2RedirectUrl` option that
+references a oauth2-redirect.html file provided by the swagger-ui lib and served
+by the current addon.

base_rest/static/src/js/swagger_ui.js

@@ -43,6 +43,9 @@ odoo.define("base_rest.swagger_ui", function (require) {
                         $(".topbar").prepend(this.web_btn);
                     }
                 },
+                oauth2RedirectUrl:
+                    window.location.origin +
+                    "/base_rest/static/lib/swagger-ui-3.51.1/oauth2-redirect.html",
             };
             const config = this.$el.data("settings");
             return Object.assign({}, defaults, config);