# Cechy

## Cechy FastAPI

**FastAPI** zapewnia Ci następujące korzyści:

### Oparcie o standardy open

The benefit of raising an exception over `return`ing a value will be more evident in the section about Dependencies and Security.

In this example, when the client requests an item by an ID that doesn't exist, raise an exception with a status code of `404`:

# Features

## FastAPI features

**FastAPI** gives you the following:

### Based on open standards

* <a href="https://github.com/OAI/OpenAPI-Specification" class="external-link" target="_blank"><strong>OpenAPI</strong></a> for API creation, including declarations of <abbr title="also known as: endpoints, routes">path</abbr> <abbr title="also known as HTTP methods, as POST, GET, PUT, DELETE">operations</abbr>, parameters, request bodies, security, etc.

errors.failed_to_create_crawling_config_at_wizard=Failed to create a crawling config.
errors.design_editor_disabled=This feature is disabled.
errors.not_found_on_file_system=Not Found: {0}
errors.could_not_open_on_system=Could not open {0}. <br/>Please check if the file is associated with an application.
errors.result_size_exceeded=No more results could be displayed.
errors.target_file_does_not_exist={0} file does not exist.

errors.failed_to_create_crawling_config_at_wizard=Failed to create a crawling config.
errors.design_editor_disabled=This feature is disabled.
errors.not_found_on_file_system=Not Found: {0}
errors.could_not_open_on_system=Could not open {0}. <br/>Please check if the file is associated with an application.
errors.result_size_exceeded=No more results could be displayed.
errors.target_file_does_not_exist={0} file does not exist.

```JSON
{
  "username": "johndoe",
  "email": "******@****.***",
  "full_name": "John Doe",
  "disabled": false
}
```

<img src="/img/tutorial/security/image09.png">

If you open the developer tools, you could see how the data sent only includes the token, the password is only sent in the first request to authenticate the user and get that access token, but not afterwards:

	}{
		{"foo", "myobject", testData, false, false},
		{"foo", "myobject-0byte", []byte{}, false, false},
		// volume not found error.
		{"foo-bar", "myobject", testData, true, false},
		// Test some weird characters over the wire.
		{"foo", "newline\n", testData, false, true},
		{"foo", "newline\t", testData, false, true},
		{"foo", "newline \n", testData, false, true},
		{"foo", "newline$$$\n", testData, false, true},

labels.search_title=Fess
labels.search_popular_word_word=Popular Words:
labels.search_related_queries=Related Words:
labels.search_result_select_sort=-- Sort --
labels.search_result_select_num=-- Results per page --
labels.search_result_sort_score_desc=Score
labels.search_result_sort_filename_asc=File Name (ascending)
labels.search_result_sort_filename_desc=File Name (descending)

                    for param in parameters
                    if param.get("required")
                }
                # Make sure required definitions of the same parameter take precedence
                # over non-required definitions
                all_parameters.update(required_parameters)
                operation["parameters"] = list(all_parameters.values())
            if method in METHODS_WITH_BODY:

	AssertEqual(t, nil, err)
	AssertEqual(t, user2, findUser2)
}

func TestConcurrentMany2ManyAssociation(t *testing.T) {
	db, err := OpenTestConnection(&gorm.Config{})
	if err != nil {
		t.Fatalf("open test connection failed, err: %+v", err)
	}

	count := 3

	var languages []Language
	for i := 0; i < count; i++ {
		language := Language{Code: fmt.Sprintf("consurrent %d", i)}
		db.Create(&language)