Example #1
0
// SwaggerSchema retrieves and parses the swagger API schema the server supports.
func (d *DiscoveryClient) SwaggerSchema(version unversioned.GroupVersion) (*swagger.ApiDeclaration, error) {
	if version.IsEmpty() {
		return nil, fmt.Errorf("groupVersion cannot be empty")
	}

	groupList, err := d.ServerGroups()
	if err != nil {
		return nil, err
	}
	groupVersions := ExtractGroupVersions(groupList)
	// This check also takes care the case that kubectl is newer than the running endpoint
	if stringDoesntExistIn(version.String(), groupVersions) {
		return nil, fmt.Errorf("API version: %v is not supported by the server. Use one of: %v", version, groupVersions)
	}
	var path string
	if version == v1.SchemeGroupVersion {
		path = "/swaggerapi/api/" + version.Version
	} else {
		path = "/swaggerapi/apis/" + version.Group + "/" + version.Version
	}

	body, err := d.Get().AbsPath(path).Do().Raw()
	if err != nil {
		return nil, err
	}
	var schema swagger.ApiDeclaration
	err = json.Unmarshal(body, &schema)
	if err != nil {
		return nil, fmt.Errorf("got '%s': %v", string(body), err)
	}
	return &schema, nil
}