utoipa/openapi/
example.rs

1//! Implements [OpenAPI Example Object][example] can be used to define examples for [`Response`][response]s and
2//! [`RequestBody`][request_body]s.
3//!
4//! [example]: https://spec.openapis.org/oas/latest.html#example-object
5//! [response]: response/struct.Response.html
6//! [request_body]: request_body/struct.RequestBody.html
7use serde::{Deserialize, Serialize};
8
9use super::{builder, set_value, RefOr};
10
11builder! {
12    /// # Examples
13    ///
14    /// _**Construct a new [`Example`] via builder**_
15    /// ```rust
16    /// # use utoipa::openapi::example::ExampleBuilder;
17    /// let example = ExampleBuilder::new()
18    ///     .summary("Example string response")
19    ///     .value(Some(serde_json::json!("Example value")))
20    ///     .build();
21    /// ```
22    ExampleBuilder;
23
24    /// Implements [OpenAPI Example Object][example].
25    ///
26    /// Example is used on path operations to describe possible response bodies.
27    ///
28    /// [example]: https://spec.openapis.org/oas/latest.html#example-object
29    #[non_exhaustive]
30    #[derive(Serialize, Deserialize, Default, Clone, PartialEq, Eq)]
31    #[cfg_attr(feature = "debug", derive(Debug))]
32    #[serde(rename_all = "camelCase")]
33    pub struct Example {
34        /// Short description for the [`Example`].
35        #[serde(skip_serializing_if = "String::is_empty")]
36        pub summary: String,
37
38        /// Long description for the [`Example`]. Value supports markdown syntax for rich text
39        /// representation.
40        #[serde(skip_serializing_if = "String::is_empty")]
41        pub description: String,
42
43        /// Embedded literal example value. [`Example::value`] and [`Example::external_value`] are
44        /// mutually exclusive.
45        #[serde(skip_serializing_if = "Option::is_none")]
46        pub value: Option<serde_json::Value>,
47
48        /// An URI that points to a literal example value. [`Example::external_value`] provides the
49        /// capability to references an example that cannot be easily included in JSON or YAML.
50        /// [`Example::value`] and [`Example::external_value`] are mutually exclusive.
51        #[serde(skip_serializing_if = "String::is_empty")]
52        pub external_value: String,
53    }
54}
55
56impl Example {
57    /// Construct a new empty [`Example`]. This is effectively same as calling
58    /// [`Example::default`].
59    pub fn new() -> Self {
60        Self::default()
61    }
62}
63
64impl ExampleBuilder {
65    /// Add or change a short description for the [`Example`]. Setting this to empty `String`
66    /// will make it not render in the generated OpenAPI document.
67    pub fn summary<S: Into<String>>(mut self, summary: S) -> Self {
68        set_value!(self summary summary.into())
69    }
70
71    /// Add or change a long description for the [`Example`]. Markdown syntax is supported for rich
72    /// text representation.
73    ///
74    /// Setting this to empty `String` will make it not render in the generated
75    /// OpenAPI document.
76    pub fn description<D: Into<String>>(mut self, description: D) -> Self {
77        set_value!(self description description.into())
78    }
79
80    /// Add or change embedded literal example value. [`Example::value`] and [`Example::external_value`]
81    /// are mutually exclusive.
82    pub fn value(mut self, value: Option<serde_json::Value>) -> Self {
83        set_value!(self value value)
84    }
85
86    /// Add or change an URI that points to a literal example value. [`Example::external_value`]
87    /// provides the capability to references an example that cannot be easily included
88    /// in JSON or YAML. [`Example::value`] and [`Example::external_value`] are mutually exclusive.
89    ///
90    /// Setting this to an empty String will make the field not to render in the generated OpenAPI
91    /// document.
92    pub fn external_value<E: Into<String>>(mut self, external_value: E) -> Self {
93        set_value!(self external_value external_value.into())
94    }
95}
96
97impl From<ExampleBuilder> for RefOr<Example> {
98    fn from(example_builder: ExampleBuilder) -> Self {
99        Self::T(example_builder.build())
100    }
101}