## List Spans

**get** `/spans`

List spans, optionally filtered by trace_id and/or task_id

### Query Parameters

- `limit: optional number`

- `order_by: optional string`

- `order_direction: optional string`

- `page_number: optional number`

- `task_id: optional string`

- `trace_id: optional string`

### Returns

- `id: string`

- `name: string`

  Name that describes what operation this span represents

- `start_time: string`

  The time the span started

- `trace_id: string`

  Unique identifier for the trace this span belongs to

- `data: optional map[unknown] or array of map[unknown]`

  Any additional metadata or context for the span

  - `map[unknown]`

  - `array of map[unknown]`

- `end_time: optional string`

  The time the span ended

- `input: optional map[unknown] or array of map[unknown]`

  Input parameters or data for the operation

  - `map[unknown]`

  - `array of map[unknown]`

- `output: optional map[unknown] or array of map[unknown]`

  Output data resulting from the operation

  - `map[unknown]`

  - `array of map[unknown]`

- `parent_id: optional string`

  ID of the parent span if this is a child span in a trace

- `task_id: optional string`

  ID of the task this span belongs to

### Example

```http
curl http://localhost:5003/spans \
    -H "Authorization: Bearer $AGENTEX_SDK_API_KEY"
```

#### Response

```json
[
  {
    "id": "id",
    "name": "name",
    "start_time": "2019-12-27T18:11:19.117Z",
    "trace_id": "trace_id",
    "data": {
      "foo": "bar"
    },
    "end_time": "2019-12-27T18:11:19.117Z",
    "input": {
      "foo": "bar"
    },
    "output": {
      "foo": "bar"
    },
    "parent_id": "parent_id",
    "task_id": "task_id"
  }
]
```