...we do all this in a **single simple line**. 🤯 Don't you love Python? 🐍

{* ../../docs_src/query_params_str_validations/tutorial015_an_py310.py ln[22:30] hl[29] *}

## Recap { #recap }

You can declare additional validations and metadata for your parameters.

Generic validations and metadata:

* `alias`
* `title`
* `description`
* `deprecated`

If you forget to use a `set` and use a `list` or `tuple` instead, FastAPI will still convert it to a `set` and it will work correctly:

{* ../../docs_src/response_model/tutorial006_py310.py hl[29,35] *}

## Recap { #recap }

Use the *path operation decorator's* parameter `response_model` to define response models and especially to ensure private data is filtered out.

    fun promoteNightlyTaskName() = nightlyTaskName("promote")

    fun prepNightlyTaskName() = nightlyTaskName("prep")

    fun promoteMilestoneTaskName(): String =
        when {
            isRelease -> "promoteReleaseMilestone"
            else -> "promoteMilestone"
        }

    fun promoteFinalReleaseTaskName(): String =

<div class="screenshot">
<img src="/img/tutorial/sql-databases/image02.png">
</div>

## Recap { #recap }

You can use <a href="https://sqlmodel.tiangolo.com/" class="external-link" target="_blank">**SQLModel**</a> to interact with a SQL database and simplify the code with *data models*  and *table models*.

You can use simple tools like `htop` to see the CPU and RAM used in your server or the amount used by each process. Or you can use more complex monitoring tools, which may be distributed across servers, etc.

## Recap { #recap }

You have been reading here some of the main concepts that you would probably need to keep in mind when deciding how to deploy your application:

* Security - HTTPS
* Running on startup
* Restarts

* The alternative documentation will also reflect the new query parameter and body:

![ReDoc](https://fastapi.tiangolo.com/img/index/index-06-redoc-02.png)

### Recap { #recap }

In summary, you declare **once** the types of parameters, body, etc. as function parameters.

You do that with standard modern Python types.

* The alternative documentation will also reflect the new query parameter and body:

![ReDoc](https://fastapi.tiangolo.com/img/index/index-06-redoc-02.png)

### Recap { #recap }

In summary, you declare **once** the types of parameters, body, etc. as function parameters.

You do that with standard modern Python types.

## Recap { #recap }

Using container systems (e.g. with **Docker** and **Kubernetes**) it becomes fairly straightforward to handle all the **deployment concepts**:

* HTTPS
* Running on startup
* Restarts

	infos, err := s.getStorage().ReadParts(r.Context(), volume, preq.Paths...)
	done(nil)
	if err != nil {
		s.writeErrorResponse(w, err)
		return
	}

	presp := &ReadPartsResp{Infos: infos}
	storageLogIf(r.Context(), msgp.Encode(w, presp))
}

// ReadFileHandler - read section of a file.
func (s *storageRESTServer) ReadFileHandler(w http.ResponseWriter, r *http.Request) {
	if !s.IsValid(w, r) {
		return

* **<abbr title="Short">کوچک</abbr>**: کاهش تکرار در کد. چندین قابلیت برای هر پارامتر (منظور پارامترهای ورودی تابع هندلر می‌باشد، به بخش <a href="https://fastapi.tiangolo.com/#recap">خلاصه</a> در همین صفحه مراجعه شود). باگ کمتر.
* **<abbr title="Robust">استوار</abbr>**: ایجاد کدی آماده برای استفاده در محیط پروداکشن و تولید خودکار <abbr title="Interactive documentation">مستندات تعاملی</abbr>