This isn't even Python, NestJS is a JavaScript (TypeScript) NodeJS framework inspired by Angular.

It achieves something somewhat similar to what can be done with Flask-apispec.

```

</div>

## WebSockets client { #websockets-client }

### In production { #in-production }

In your production system, you probably have a frontend created with a modern framework like React, Vue.js or Angular.

And to communicate using WebSockets with your backend you would probably use your frontend's utilities.

Or you might have a native mobile application that communicates with your WebSocket backend directly, in native code.

It will perform the validation of the compound data, and will document it like that for the OpenAPI schema and automatic docs.

## Singular values in body { #singular-values-in-body }

The same way there is a `Query` and `Path` to define extra data for query and path parameters, **FastAPI** provides an equivalent `Body`.

  -v D:\data:/data \
  quay.io/minio/minio server /data --console-address ":9001"
```

### Run MinIO Docker as a regular user

Docker provides standardized mechanisms to run docker containers as non-root users.

#### GNU/Linux and macOS (regular user)

On Linux and macOS you can use `--user` to run the container as regular user.

> NOTE: make sure --user has write permission to *${HOME}/data* prior to using `--user`.

```sh

## Add regular expressions { #add-regular-expressions }

You can define a <abbr title="A regular expression, regex or regexp is a sequence of characters that define a search pattern for strings.">regular expression</abbr> `pattern` that the parameter should match:

{* ../../docs_src/query_params_str_validations/tutorial004_an_py310.py hl[11] *}

///

## Without Pydantic { #without-pydantic }

            if (dirManager != null && smbFile.getContext().getConfig().isUseDirectoryLeasing()) {
                return listFilesWithDirectoryLeasing(smbFile, dirManager);
            } else {
                // Fall back to regular directory listing
                return smbFile.listFiles();
            }
        } catch (CIFSException e) {
            throw SmbException.wrap(e);
        }
    }

    /**

		if _, ok := ownFieldsMap[joinFieldName]; ok {
			if field.Name != relation.FieldSchema.Name {
				joinFieldName = inflection.Singular(field.Name) + relField.Name
			} else {
				joinFieldName += "Reference"
			}
		}

		if len(joinReferences) > idx {
			joinFieldName = cases.Title(language.Und, cases.NoLower).String(joinReferences[idx])

* Data conversion
* Data validation
* Automatic documentation

## Special types and validation { #special-types-and-validation }

Apart from normal singular types like `str`, `int`, `float`, etc. you can use more complex singular types that inherit from `str`.

The code following the `yield` statement is executed after creating the response but before sending it:

{* ../../docs_src/dependencies/tutorial007.py hl[5:6] *}

/// tip

You can use `async` or regular functions.

**FastAPI** will do the right thing with each, the same as with normal dependencies.

///

## A dependency with `yield` and `try` { #a-dependency-with-yield-and-try }