Mechanism to override host, basePath and scheme for OpenAPI 2.x definitions

Q&A (please complete the following information)

• Method of installation: [npm, dist assets]
• Swagger-UI version: [>=3.25.1]
• Swagger/OpenAPI version: [Swagger 2.0]

Content & configuration

Swagger/OpenAPI definition:
https://petstore.swagger.io/v2/swagger.json

Swagger-UI configuration options:

const UrlMutatorPlugin = (system) => ({
  rootInjects: {
    setScheme: (scheme) => {
      const jsonSpec = system.getState().toJSON().spec.json;
      const schemes = Array.isArray(scheme) ? scheme : [scheme];
      const newJsonSpec = Object.assign({}, jsonSpec, { schemes });

      return system.specActions.updateJsonSpec(newJsonSpec);
    },
    setHost: (host) => {
      const jsonSpec = system.getState().toJSON().spec.json;
      const newJsonSpec = Object.assign({}, jsonSpec, { host });

      return system.specActions.updateJsonSpec(newJsonSpec);
    },
    setBasePath: (basePath) => {
      const jsonSpec = system.getState().toJSON().spec.json;
      const newJsonSpec = Object.assign({}, jsonSpec, { basePath });

      return system.specActions.updateJsonSpec(newJsonSpec);
    }
  }
});

window.ui = SwaggerUI({
  dom_id: '#myDomId',
  plugins: [
    UrlMutatorPlugin,
  ],
  onComplete: () => {
    // this will set appropriate data when swagger-ui ready
    window.ui.setScheme('http');
    window.ui.setHost('www.google.com');
    window.ui.setBasePath('v3');
  }   
})

Gist where UrlMutatorPlugin will be maintained until fully verified that it satisfy the community usecases:

https://gist.github.com/char0n/3b6005c187a4bb771a27705d123af6cd

How can we help?

This issue is not about requesting support, but more about giving one. It consolidates all other issues that have been created around this topics.

Related issues

https://github.com/swagger-api/swagger-js/issues/1095
https://github.com/swagger-api/swagger-js/issues/1027
https://github.com/swagger-api/swagger-js/issues/532
https://github.com/swagger-api/swagger-js/issues/1045
https://github.com/swagger-api/swagger-ui/issues/3042