From aef48a18c8d4c3510a6dd94f225c5ec77651585f Mon Sep 17 00:00:00 2001
From: Alex Varchuk <olexandr.varchuk@gmail.com>
Date: Wed, 26 May 2021 11:50:47 +0300
Subject: [PATCH] feat: add const keyword

---
 src/components/Fields/FieldDetails.tsx | 1 +
 src/services/Labels.ts                 | 2 ++
 src/services/models/Field.ts           | 3 +++
 src/services/models/Schema.ts          | 2 ++
 src/types/open-api.d.ts                | 2 ++
 5 files changed, 10 insertions(+)

diff --git a/src/components/Fields/FieldDetails.tsx b/src/components/Fields/FieldDetails.tsx
index ac362a40..be102622 100644
--- a/src/components/Fields/FieldDetails.tsx
+++ b/src/components/Fields/FieldDetails.tsx
@@ -110,6 +110,7 @@ export class FieldDetails extends React.PureComponent<FieldProps, { patternShown
           <ExternalDocumentation externalDocs={schema.externalDocs} compact={true} />
         )}
         {(renderDiscriminatorSwitch && renderDiscriminatorSwitch(this.props)) || null}
+        {field.const && (<FieldDetail label={'Value:'} value={field.const}/>) || null}
       </div>
     );
   }
diff --git a/src/services/Labels.ts b/src/services/Labels.ts
index f5fa1fd1..8e89bc2f 100644
--- a/src/services/Labels.ts
+++ b/src/services/Labels.ts
@@ -9,6 +9,7 @@ export interface LabelsConfig {
   recursive: string;
   arrayOf: string;
   webhook: string;
+  const: string;
 }
 
 export type LabelsConfigRaw = Partial<LabelsConfig>;
@@ -24,6 +25,7 @@ const labels: LabelsConfig = {
   recursive: 'Recursive',
   arrayOf: 'Array of ',
   webhook: 'Event',
+  const: 'Value',
 };
 
 export function setRedocLabels(_labels?: LabelsConfigRaw) {
diff --git a/src/services/models/Field.ts b/src/services/models/Field.ts
index 1154c9a8..ef031ab8 100644
--- a/src/services/models/Field.ts
+++ b/src/services/models/Field.ts
@@ -55,6 +55,7 @@ export class FieldModel {
   extensions?: Record<string, any>;
   explode: boolean;
   style?: OpenAPIParameterStyle;
+  const?: any;
 
   serializationMime?: string;
 
@@ -111,6 +112,8 @@ export class FieldModel {
     if (options.showExtensions) {
       this.extensions = extractExtensions(info, options.showExtensions);
     }
+
+    this.const = this.schema?.const || info?.const || '';
   }
 
   @action
diff --git a/src/services/models/Schema.ts b/src/services/models/Schema.ts
index fb0c5164..8749625e 100644
--- a/src/services/models/Schema.ts
+++ b/src/services/models/Schema.ts
@@ -60,6 +60,7 @@ export class SchemaModel {
   rawSchema: OpenAPISchema;
   schema: MergedOpenAPISchema;
   extensions?: Record<string, any>;
+  const: any;
 
   /**
    * @param isChild if schema discriminator Child
@@ -119,6 +120,7 @@ export class SchemaModel {
     this.default = schema.default;
     this.readOnly = !!schema.readOnly;
     this.writeOnly = !!schema.writeOnly;
+    this.const = schema.const || '';
 
     if (!!schema.nullable) {
       if (Array.isArray(this.type)) this.type.push('null');
diff --git a/src/types/open-api.d.ts b/src/types/open-api.d.ts
index 90ed467b..d55e44b1 100644
--- a/src/types/open-api.d.ts
+++ b/src/types/open-api.d.ts
@@ -99,6 +99,7 @@ export interface OpenAPIParameter {
   examples?: { [media: string]: Referenced<OpenAPIExample> };
   content?: { [media: string]: OpenAPIMediaType };
   encoding?: Record<string, OpenAPIEncoding>;
+  const?: any;
 }
 
 export interface OpenAPIExample {
@@ -145,6 +146,7 @@ export interface OpenAPISchema {
   minProperties?: number;
   enum?: any[];
   example?: any;
+  const?: string;
 }
 
 export interface OpenAPIDiscriminator {