salvo_oapi/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
9/// Implements [OpenAPI Example Object][example].
10///
11/// Example is used on path operations to describe possible response bodies.
12///
13/// [example]: https://spec.openapis.org/oas/latest.html#example-object
14#[non_exhaustive]
15#[derive(Serialize, Deserialize, Default, Clone, Debug, PartialEq, Eq)]
16#[serde(rename_all = "camelCase")]
17pub struct Example {
18 /// Short description for the [`Example`].
19 #[serde(skip_serializing_if = "String::is_empty")]
20 pub summary: String,
21
22 /// Long description for the [`Example`]. Value supports markdown syntax for rich text
23 /// representation.
24 #[serde(skip_serializing_if = "String::is_empty")]
25 pub description: String,
26
27 /// Embedded literal example value. [`Example::value`] and [`Example::external_value`] are
28 /// mutually exclusive.
29 #[serde(skip_serializing_if = "Option::is_none")]
30 pub value: Option<serde_json::Value>,
31
32 /// An URI that points to a literal example value. [`Example::external_value`] provides the
33 /// capability to references an example that cannot be easily included in JSON or YAML.
34 /// [`Example::value`] and [`Example::external_value`] are mutually exclusive.
35 #[serde(skip_serializing_if = "String::is_empty")]
36 pub external_value: String,
37}
38
39impl Example {
40 /// Construct a new empty [`Example`]. This is effectively same as calling [`Example::default`].
41 #[must_use]
42 pub fn new() -> Self {
43 Self::default()
44 }
45 /// Add or change a short description for the [`Example`]. Setting this to empty `String`
46 /// will make it not render in the generated OpenAPI document.
47 #[must_use]
48 pub fn summary<S: Into<String>>(mut self, summary: S) -> Self {
49 self.summary = summary.into();
50 self
51 }
52
53 /// Add or change a long description for the [`Example`]. Markdown syntax is supported for rich
54 /// text representation.
55 ///
56 /// Setting this to empty `String` will make it not render in the generated
57 /// OpenAPI document.
58 #[must_use]
59 pub fn description<D: Into<String>>(mut self, description: D) -> Self {
60 self.description = description.into();
61 self
62 }
63
64 /// Add or change embedded literal example value. [`Example::value`] and [`Example::external_value`]
65 /// are mutually exclusive.
66 #[must_use]
67 pub fn value(mut self, value: serde_json::Value) -> Self {
68 self.value = Some(value);
69 self
70 }
71
72 /// Add or change an URI that points to a literal example value. [`Example::external_value`]
73 /// provides the capability to references an example that cannot be easily included
74 /// in JSON or YAML. [`Example::value`] and [`Example::external_value`] are mutually exclusive.
75 ///
76 /// Setting this to an empty String will make the field not to render in the generated OpenAPI
77 /// document.
78 #[must_use]
79 pub fn external_value<E: Into<String>>(mut self, external_value: E) -> Self {
80 self.external_value = external_value.into();
81 self
82 }
83}
84
85#[cfg(test)]
86mod tests {
87 use super::*;
88
89 #[test]
90 fn test_example() {
91 let example = Example::new();
92 assert!(example.summary.is_empty());
93 assert!(example.description.is_empty());
94 assert!(example.value.is_none());
95 assert!(example.external_value.is_empty());
96
97 let example = example.summary("summary");
98 assert!(example.summary == "summary");
99
100 let example = example.description("description");
101 assert!(example.description == "description");
102
103 let example = example.external_value("external_value");
104 assert!(example.external_value == "external_value");
105
106 let example = example.value(serde_json::Value::String("value".to_owned()));
107 assert!(example.value.is_some());
108 assert!(example.value.unwrap() == serde_json::Value::String("value".to_owned()));
109 }
110}