# List errorFromGroupID

URL: https://docs.hanzo.ai/docs/openapi/o11y/get-o11y-errorfromgroupid

> Returns the representative exception instance of a group at a timestamp, and the span it happened on.

`GET /v1/o11y/errorFromGroupID`

> [O11y →](https://docs.hanzo.ai/docs/openapi/o11y) · [All API references →](https://docs.hanzo.ai/docs/openapi) · [Get started →](https://docs.hanzo.ai/docs/guides)

|               |                                                 |
| ------------- | ----------------------------------------------- |
| **Address**   | `https://api.hanzo.ai/v1/o11y/errorFromGroupID` |
| **Method**    | `GET`                                           |
| **Operation** | `get_o11y_errorfromgroupid`                     |
| **Auth**      | `Authorization: Bearer $HANZO_API_KEY`          |

Returns the representative exception instance of a group at a
timestamp, and the span it happened on.

Callers need the viewer role; the runtime's own gate enforces it.

## Request

3 fields.

| Field       | In    | Type   | Required | Description                                                                 |
| ----------- | ----- | ------ | -------- | --------------------------------------------------------------------------- |
| `timestamp` | query | string | yes      | Timestamp is the instance's time as a nanosecond epoch spelled as a string. |
| `groupID`   | query | string | yes      | GroupID is the exception group the instance belongs to.                     |
| `errorID`   | query | string | —        | ErrorID is the exception instance id.                                       |

## Response

| Status    | Body                   | Meaning           |
| --------- | ---------------------- | ----------------- |
| `200`     | o11y.O11yErrorWithSpan | ok                |
| `202`     | Approval               | held for approval |
| `default` | problem-details        | refused           |

`200` body — 10 fields.

| Field                 | In   | Type               | Always | Description                                                         |
| --------------------- | ---- | ------------------ | ------ | ------------------------------------------------------------------- |
| `errorId`             | body | string             | —      | ErrorID is the exception instance id.                               |
| `exceptionEscaped`    | body | boolean            | —      | ExceptionEscaped marks an exception that escaped its span uncaught. |
| `exceptionMessage`    | body | string             | —      | ExceptionMsg is the exception's message.                            |
| `exceptionStacktrace` | body | string             | —      | ExceptionStacktrace is the captured stack trace.                    |
| `exceptionType`       | body | string             | —      | ExceptionType is the exception's type.                              |
| `groupID`             | body | string             | —      | GroupID is the exception group it belongs to.                       |
| `serviceName`         | body | string             | —      | ServiceName is the service that reported it.                        |
| `spanID`              | body | string             | —      | SpanID is the span it happened on.                                  |
| `timestamp`           | body | string (date-time) | —      | Timestamp is when it happened.                                      |
| `traceID`             | body | string             | —      | TraceID is the trace the span belonged to.                          |

Failure carries the platform error shape — see [Errors](https://docs.hanzo.ai/docs/errors).

## Examples

**CLI**

```bash
hanzo o11y errorFromGroupID \
  --timestamp <timestamp> \
  --group-id <group-id>
```

**SDK**

**.ts**

```ts
import { Configuration, O11yApi } from 'hanzoai';

const api = new O11yApi(new Configuration({ accessToken: process.env.HANZO_API_KEY }));
const { data } = await api.getO11yErrorfromgroupid({ timestamp: 'timestamp', groupID: 'groupID' });
```

**.py**

```python
from hanzoai.cloud import ApiClient, Configuration
from hanzoai.cloud.api import O11yApi

client = ApiClient(Configuration(access_token=os.environ["HANZO_API_KEY"]))
result = O11yApi(client).get_o11y_errorfromgroupid(timestamp='timestamp', group_id='groupID')
```

**.go**

```go
cfg := hanzoai.NewConfiguration()
cfg.AddDefaultHeader("Authorization", "Bearer "+os.Getenv("HANZO_API_KEY"))
client := hanzoai.NewAPIClient(cfg)

resp, _, err := client.O11yAPI.GetO11yErrorfromgroupid(context.Background()).Execute()
if err != nil {
	return err
}
```

**.rs**

```rust
use hanzo_client::apis::{configuration::Configuration, o11y_api};

let mut cfg = Configuration::new();
cfg.bearer_access_token = std::env::var("HANZO_API_KEY").ok();

let result = o11y_api::get_o11y_errorfromgroupid(&cfg, Default::default()).await?;
```

**.java**

```java
import ai.hanzo.cloud.ApiClient;
import ai.hanzo.cloud.api.O11yApi;

ApiClient client = new ApiClient();
client.setBearerToken(System.getenv("HANZO_API_KEY"));

var result = new O11yApi(client).getO11yErrorfromgroupid();
```

**HTTP**

```bash
curl https://api.hanzo.ai/v1/o11y/errorFromGroupID?timestamp=%3Ctimestamp%3E&groupID=%3CgroupID%3E \
  -H "Authorization: Bearer $HANZO_API_KEY"
```

**MCP**

Tool `o11y`, op `get_o11y_errorfromgroupid` — POST the JSON-RPC envelope to `https://api.hanzo.ai/v1/mcp`.

```bash
curl -X POST https://api.hanzo.ai/v1/mcp \
  -H "Authorization: Bearer $HANZO_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
       "jsonrpc": "2.0",
       "id": 1,
       "method": "tools/call",
       "params": {
         "name": "o11y",
         "arguments": {
           "op": "get_o11y_errorfromgroupid",
           "input": {
             "timestamp": "<timestamp>",
             "groupID": "<groupID>"
           }
         }
       }
     }'
```

---

[O11y API](https://docs.hanzo.ai/docs/openapi/o11y) · [All Hanzo APIs](https://docs.hanzo.ai/docs/openapi) · [Interactive reference](https://docs.hanzo.ai/docs/openapi/reference)