docs/admin-manual/open-api/be-http/config.md

---
{
    "title": "Config of BE",
    "language": "en"
}
---

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# Config of BE

## Request

`GET /api/show_config`
`POST /api/update_config?{key}={val}`

## Description

Query and update the config of BE

## Query parameters

* `persist`
    Whether to persist. Optional with default `false`.

* `key`
    Config item name

* `val`
    Config item value        

## Request body

None

## Response

### Query

```
[["agent_task_trace_threshold_sec","int32_t","2","true"], ...]
```

### Update
```
[
    {
        "config_name": "agent_task_trace_threshold_sec",
        "status": "OK",
        "msg": ""
    }
]
```

```
[
    {
        "config_name": "agent_task_trace_threshold_sec",
        "status": "OK",
        "msg": ""
    },
    {
        "config_name": "enable_segcompaction",
        "status": "BAD",
        "msg": "set enable_segcompaction=false failed, reason: [NOT_IMPLEMENTED_ERROR]'enable_segcompaction' is not support to modify."
    },
    {
        "config_name": "enable_time_lut",
        "status": "BAD",
        "msg": "set enable_time_lut=false failed, reason: [NOT_IMPLEMENTED_ERROR]'enable_time_lut' is not support to modify."
    }
]
```

## Examples


```
curl "http://127.0.0.1:8040/api/show_config"
```

```
curl -X POST "http://127.0.0.1:8040/api/update_config?agent_task_trace_threshold_sec=2&persist=true"

```

```
curl -X POST "http://127.0.0.1:8040/api/update_config?agent_task_trace_threshold_sec=2&enable_merge_on_write_correctness_check=true&persist=true"
```