# Create span mappers

URL: https://docs.hanzo.ai/docs/openapi/o11y/createspanmapper

> Adds a mapper to a group: which field context it reads, the move or copy it performs, and whether it is on.

`POST /v1/o11y/span_mapper_groups/{groupId}/span_mappers`

> [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/span_mapper_groups/{groupId}/span_mappers` |
| **Method**    | `POST`                                                                   |
| **Operation** | `CreateSpanMapper`                                                       |
| **Auth**      | `Authorization: Bearer $HANZO_API_KEY`                                   |

Adds a mapper to a group: which field context it reads, the
move or copy it performs, and whether it is on.

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

## Request

10 fields, body `application/json` (required).

| Field                        | In   | Type                     | Required | Description |
| ---------------------------- | ---- | ------------------------ | -------- | ----------- |
| `groupId`                    | path | string                   | yes      |             |
| `config`                     | body | o11y.SpanMapperConfig    | —        |             |
| `config.sources`             | body | o11y.SpanMapperSource\[] | —        |             |
| `config.sources[].context`   | body | any                      | —        |             |
| `config.sources[].key`       | body | string                   | —        |             |
| `config.sources[].operation` | body | any                      | —        |             |
| `config.sources[].priority`  | body | integer (int64)          | —        |             |
| `enabled`                    | body | boolean                  | —        |             |
| `fieldContext`               | body | any                      | —        |             |
| `name`                       | body | string                   | —        |             |

## Response

| Status    | Body                   | Meaning           |
| --------- | ---------------------- | ----------------- |
| `201`     | o11y.O11ySpanMapperOut | created           |
| `202`     | Approval               | held for approval |
| `default` | problem-details        | refused           |

`201` body — 17 fields.

| Field                             | In   | Type                     | Always | Description          |
| --------------------------------- | ---- | ------------------------ | ------ | -------------------- |
| `data`                            | body | o11y.SpanMapper          | —      |                      |
| `data.config`                     | body | o11y.SpanMapperConfig    | —      |                      |
| `data.config.sources`             | body | o11y.SpanMapperSource\[] | —      |                      |
| `data.config.sources[].context`   | body | any                      | —      |                      |
| `data.config.sources[].key`       | body | string                   | —      |                      |
| `data.config.sources[].operation` | body | any                      | —      |                      |
| `data.config.sources[].priority`  | body | integer (int64)          | —      |                      |
| `data.createdAt`                  | body | string (date-time)       | —      |                      |
| `data.createdBy`                  | body | string                   | —      |                      |
| `data.enabled`                    | body | boolean                  | —      |                      |
| `data.fieldContext`               | body | any                      | —      |                      |
| `data.group_id`                   | body | any                      | —      |                      |
| `data.id`                         | body | any                      | —      |                      |
| `data.name`                       | body | string                   | —      |                      |
| `data.updatedAt`                  | body | string (date-time)       | —      |                      |
| `data.updatedBy`                  | body | string                   | —      |                      |
| `status`                          | body | string                   | —      | Status is "success". |

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

## Examples

**CLI**

```bash
hanzo o11y span_mapper_groups span_mappers create <groupId>
```

**SDK**

**.ts**

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

const api = new O11yApi(new Configuration({ accessToken: process.env.HANZO_API_KEY }));
const { data } = await api.createSpanMapper({ groupId: 'groupId', config: {"sources":[{"context":"<context>","key":"<key>","operation":"<operation>","priority":0}]}, enabled: false });
```

**.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).create_span_mapper(group_id='groupId', config={"sources":[{"context":"<context>","key":"<key>","operation":"<operation>","priority":0}]}, enabled=False)
```

**.go**

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

resp, _, err := client.O11yAPI.CreateSpanMapper(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::create_span_mapper(&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).createSpanMapper();
```

**HTTP**

```bash
curl -X POST https://api.hanzo.ai/v1/o11y/span_mapper_groups/<groupId>/span_mappers \
  -H "Authorization: Bearer $HANZO_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
       "config": {
         "sources": [
           {
             "context": "<context>",
             "key": "<key>",
             "operation": "<operation>",
             "priority": 0
           }
         ]
       },
       "enabled": false
     }'
```

**MCP**

Tool `o11y`, op `CreateSpanMapper` — 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": "CreateSpanMapper",
           "input": {
             "groupId": "<groupId>",
             "config": {
               "sources": [
                 {
                   "context": "<context>",
                   "key": "<key>",
                   "operation": "<operation>",
                   "priority": 0
                 }
               ]
             },
             "enabled": false
           }
         }
       }
     }'
```

---

[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)