This Generic Extractor (https://developers.keboola.com/extend/generic-extractor/) configuration for Toggl API (https://github.com/toggl/toggl_api_docs) allows you to extract Workspaces, Users, Projects, Tasks, and Time Entries.

config.json

{
    "parameters": {
        "api": {
            "authentication": {
                "type": "basic"
            },
            "baseUrl": "https://toggl.com/"
        },
        "config": {
            "id": "toggl",
            "username": "YOUR-TOGGL-TOKEN-HERE",
            "#password": "api_token",
            "http": {
                "headers": {
                    "Accept": "application/json"
                }
            },
            "jobs": [{
                "endpoint": "api/v8/workspaces",
                "dataType": "workspaces",
                "dataField": "",
                "children": [{
                        "endpoint": "api/v8/workspaces/{id}/projects",
                        "dataType": "projects",
                        "dataField": "",
                        "placeholders": {
                            "id": "id"
                        },
                        "children": [{
                            "endpoint": "api/v8/projects/{id}/tasks",
                            "dataType": "tasks",
                            "dataField": "",
                            "placeholders": {
                                "id": "id"
                            }
                        }]
                    },
                    {
                        "endpoint": "api/v8/workspaces/{id}/users",
                        "dataType": "users",
                        "dataField": "",
                        "placeholders": {
                            "id": "id"
                        },
                        "children": [{
                            "endpoint": "reports/api/v2/details?user_agent={email}&workspace_id={default_wid}",
                            "dataType": "time_entries",
                            "dataField": "data",
                            "placeholders": {
                                "email": "email",
                                "default_wid": "default_wid"
                            }
                        }]
                    }
                ]
            }]
        }
    }
}