## Create a model route

### cURL

```bash
curl --request POST \
  --url https://app.barndoor.ai/api/llm-gateway/admin/model-mappings \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "provider_id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
  "model_alias": "<string>",
  "upstream_model": "<string>",
  "enabled": true,
  "priority": 0,
  "retry_on_429_count": 0,
  "retry_on_429_max_wait_secs": 0,
  "bare_alias": true,
  "stream_idle_timeout_secs": 900,
  "max_concurrent_requests": 5000,
  "request_timeout_secs": 1800
}
'```

### Python Example

```python
import requests

url = "https://app.barndoor.ai/api/llm-gateway/admin/model-mappings"

payload = {
    "provider_id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
    "model_alias": "<string>",
    "upstream_model": "<string>",
    "enabled": True,
    "priority": 0,
    "retry_on_429_count": 0,
    "retry_on_429_max_wait_secs": 0,
    "bare_alias": True,
    "stream_idle_timeout_secs": 900,
    "max_concurrent_requests": 5000,
    "request_timeout_secs": 1800
}
headers = {
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

response = requests.post(url, json=payload, headers=headers)

print(response.text)
```

### JavaScript Example

```javascript
const options = {
  method: 'POST',
  headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
  body: JSON.stringify({
    provider_id: '3c90c3cc-0d44-4b50-8888-8dd25736052a',
    model_alias: '<string>',
    upstream_model: '<string>',
    enabled: true,
    priority: 0,
    retry_on_429_count: 0,
    retry_on_429_max_wait_secs: 0,
    bare_alias: true,
    stream_idle_timeout_secs: 900,
    max_concurrent_requests: 5000,
    request_timeout_secs: 1800
  })
};

fetch('https://app.barndoor.ai/api/llm-gateway/admin/model-mappings', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));
```

### Go Example

```go
package main

import (
	"fmt"
	"strings"
	"net/http"
	"io"
)

func main() {

url := "https://app.barndoor.ai/api/llm-gateway/admin/model-mappings"

payload := strings.NewReader("{\n  \"provider_id\": \"3c90c3cc-0d44-4b50-8888-8dd25736052a\",\n  \"model_alias\": \"<string>\",\n  \"upstream_model\": \"<string>\",\n  \"enabled\": true,\n  \"priority\": 0,\n  \"retry_on_429_count\": 0,\n  \"retry_on_429_max_wait_secs\": 0,\n  \"bare_alias\": true,\n  \"stream_idle_timeout_secs\": 900,\n  \"max_concurrent_requests\": 5000,\n  \"request_timeout_secs\": 1800\n}")

req, _ := http.NewRequest("POST", url, payload)

req.Header.Add("Authorization", "Bearer <token>")
	req.Header.Add("Content-Type", "application/json")

res, _ := http.DefaultClient.Do(req)

defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

fmt.Println(string(body))
}
```

### PHP Example

```php
<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://app.barndoor.ai/api/llm-gateway/admin/model-mappings",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "POST",
  CURLOPT_POSTFIELDS => json_encode([
    'provider_id' => '3c90c3cc-0d44-4b50-8888-8dd25736052a',
    'model_alias' => '<string>',
    'upstream_model' => '<string>',
    'enabled' => true,
    'priority' => 0,
    'retry_on_429_count' => 0,
    'retry_on_429_max_wait_secs' => 0,
    'bare_alias' => true,
    'stream_idle_timeout_secs' => 900,
    'max_concurrent_requests' => 5000,
    'request_timeout_secs' => 1800
  ]),
  CURLOPT_HTTPHEADER => [
    "Authorization: Bearer <token>",
    "Content-Type: application/json"
  ],
]);

$response = curl_exec($curl);
$err = curl_error($curl);

curl_close($curl);

if ($err) {
  echo "cURL Error #:" . $err;
} else {
  echo $response;
}
?>
```

### Example Response

```json
{
  "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
  "provider_id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
  "model_alias": "gpt-4o-mini",
  "upstream_model": "gpt-4o-mini-2024-07-18",
  "enabled": true,
  "priority": 123,
  "retry_on_429_count": 5,
  "retry_on_429_max_wait_secs": 90,
  "bare_alias": true,
  "provider_name": "<string>",
  "stream_idle_timeout_secs": 900,
  "max_concurrent_requests": 5000,
  "request_timeout_secs": 1800,
  "budget_status": {
    "scope": "org",
    "target_id": "<string>",
    "budget_id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
    "budget_name": "<string>",
    "period": "monthly",
    "usage": 123,
    "limit": 123
  }
}
```

### Error Response

```json
{
  "error": "BadRequest",
  "message": "request_timeout_secs must be between 1 and 3600"
}
```

---

A **Model Route** maps a client-facing alias to a (provider, upstream model) pair. Multiple routes can share the same `model_alias` — the gateway tries them in `priority` order (lowest first) and fails over to the next on upstream errors.

### Two kinds of routes

- **1:1 enablement (`model_alias == upstream_model`)** — exposes the upstream model under its own name, addressable as `<provider>/<upstream_model>`. Defaults to `bare_alias: false`.
- **Custom alias (`model_alias != upstream_model`)** — exposes the model under a friendly alias (e.g. `team-coding-model`). Defaults to `bare_alias: true` so callers can use the plain name in `model`. Requires an existing 1:1 enablement on the same `(provider, upstream_model)` pair.