From d12e410d99a988948b359093159df79572bc78ab Mon Sep 17 00:00:00 2001
From: Roman Hotsiy <gotsijroman@gmail.com>
Date: Mon, 23 Nov 2020 14:00:17 +0200
Subject: [PATCH] feat: support multiple examples for parameters (#1470)

---
 src/components/Fields/FieldDetails.tsx | 60 +++++++++++++++++++++-----
 src/services/Labels.ts                 |  2 +
 src/services/models/Field.ts           | 10 +++++
 src/types/open-api.d.ts                |  1 +
 4 files changed, 63 insertions(+), 10 deletions(-)

diff --git a/src/components/Fields/FieldDetails.tsx b/src/components/Fields/FieldDetails.tsx
index 8584511b..839595a3 100644
--- a/src/components/Fields/FieldDetails.tsx
+++ b/src/components/Fields/FieldDetails.tsx
@@ -9,6 +9,8 @@ import {
   TypePrefix,
   TypeTitle,
   ToggleButton,
+  FieldLabel,
+  ExampleValue,
 } from '../../common-elements/fields';
 import { serializeParameterValue } from '../../utils/openapi';
 import { ExternalDocumentation } from '../ExternalDocumentation/ExternalDocumentation';
@@ -23,6 +25,8 @@ import { Badge } from '../../common-elements/';
 
 import { l } from '../../services/Labels';
 import { OptionsContext } from '../OptionsProvider';
+import { FieldModel } from '../../services/models/Field';
+import styled from '../../styled-components';
 
 const MAX_PATTERN_LENGTH = 45;
 
@@ -44,20 +48,19 @@ export class FieldDetails extends React.PureComponent<FieldProps, { patternShown
     const { patternShown } = this.state;
     const { enumSkipQuotes, hideSchemaTitles } = this.context;
 
-    const { schema, description, example, deprecated } = field;
+    const { schema, description, example, deprecated, examples } = field;
 
     const rawDefault = !!enumSkipQuotes || field.in === 'header'; // having quotes around header field default values is confusing and inappropriate
 
-    let exampleField: JSX.Element | null = null;
+    let renderedExamples: JSX.Element | null = null;
 
-    if (showExamples && example !== undefined) {
-      const label = l('example') + ':';
-      if (field.in && (field.style || field.serializationMime)) {
-        // decode for better readability in examples: see https://github.com/Redocly/redoc/issues/1138
-        const serializedValue = decodeURIComponent(serializeParameterValue(field, example));
-        exampleField = <FieldDetail label={label} value={serializedValue} raw={true} />;
+    if (showExamples && (example !== undefined || examples !== undefined)) {
+      if (examples !== undefined) {
+        renderedExamples = <Examples field={field} />;
       } else {
-        exampleField = <FieldDetail label={label} value={example} />;
+        const label = l('example') + ':';
+        const raw = !!field.in;
+        renderedExamples = <FieldDetail label={label} value={getSerializedValue(field, field.example)} raw={raw}  />;
       }
     }
 
@@ -100,7 +103,7 @@ export class FieldDetails extends React.PureComponent<FieldProps, { patternShown
         )}
         <FieldDetail raw={rawDefault} label={l('default') + ':'} value={schema.default} />
         {!renderDiscriminatorSwitch && <EnumValues type={schema.type} values={schema.enum} />}{' '}
-        {exampleField}
+        {renderedExamples}
         {<Extensions extensions={{ ...field.extensions, ...schema.extensions }} />}
         <div>
           <Markdown compact={true} source={description} />
@@ -113,3 +116,40 @@ export class FieldDetails extends React.PureComponent<FieldProps, { patternShown
     );
   }
 }
+
+function Examples({ field }: { field: FieldModel }) {
+  if (!field.examples) {
+    return null;
+  }
+
+  return (
+    <>
+      <FieldLabel> {l('examples')}: </FieldLabel>
+      <ExamplesList>
+        {Object.values(field.examples).map((example, idx) => {
+          return (
+            <li key={idx}>
+              <ExampleValue>{getSerializedValue(field, example.value)}</ExampleValue> - {example.summary || example.description}
+            </li>
+          );
+        })}
+      </ExamplesList>
+    </>
+  );
+}
+
+function getSerializedValue(field: FieldModel, example: any) {
+  if (field.in) {
+    // decode for better readability in examples: see https://github.com/Redocly/redoc/issues/1138
+    return decodeURIComponent(serializeParameterValue(field, example));
+  } else {
+    return example;
+  }
+}
+
+
+const ExamplesList = styled.ul`
+  margin-top: 1em;
+  padding-left: 0;
+  list-style-position: inside;
+`;
diff --git a/src/services/Labels.ts b/src/services/Labels.ts
index c0bddfed..c3568eb1 100644
--- a/src/services/Labels.ts
+++ b/src/services/Labels.ts
@@ -5,6 +5,7 @@ export interface LabelsConfig {
   default: string;
   deprecated: string;
   example: string;
+  examples: string;
   nullable: string;
   recursive: string;
   arrayOf: string;
@@ -20,6 +21,7 @@ const labels: LabelsConfig = {
   default: 'Default',
   deprecated: 'Deprecated',
   example: 'Example',
+  examples: 'Examples',
   nullable: 'Nullable',
   recursive: 'Recursive',
   arrayOf: 'Array of ',
diff --git a/src/services/models/Field.ts b/src/services/models/Field.ts
index ab30d094..b763c66b 100644
--- a/src/services/models/Field.ts
+++ b/src/services/models/Field.ts
@@ -11,6 +11,8 @@ import { RedocNormalizedOptions } from '../RedocNormalizedOptions';
 import { extractExtensions } from '../../utils/openapi';
 import { OpenAPIParser } from '../OpenAPIParser';
 import { SchemaModel } from './Schema';
+import { ExampleModel } from './Example';
+import { mapValues } from '../../utils/helpers';
 
 const DEFAULT_SERIALIZATION: Record<
   OpenAPIParameterLocation,
@@ -46,6 +48,7 @@ export class FieldModel {
   required: boolean;
   description: string;
   example?: string;
+  examples?: Record<string, ExampleModel>;
   deprecated: boolean;
   in?: OpenAPIParameterLocation;
   kind: string;
@@ -81,6 +84,13 @@ export class FieldModel {
       info.description === undefined ? this.schema.description || '' : info.description;
     this.example = info.example || this.schema.example;
 
+    if (info.examples !== undefined) {
+      this.examples = mapValues(
+        info.examples,
+        example => new ExampleModel(parser, example, name, info.encoding),
+      );
+    }
+
     if (serializationMime) {
       this.serializationMime = serializationMime;
     } else if (info.style) {
diff --git a/src/types/open-api.d.ts b/src/types/open-api.d.ts
index aefc0b73..7134890e 100644
--- a/src/types/open-api.d.ts
+++ b/src/types/open-api.d.ts
@@ -95,6 +95,7 @@ export interface OpenAPIParameter {
   example?: any;
   examples?: { [media: string]: Referenced<OpenAPIExample> };
   content?: { [media: string]: OpenAPIMediaType };
+  encoding?: Record<string, OpenAPIEncoding>;
 }
 
 export interface OpenAPIExample {