feat: add const keyword

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>
     );
   }

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) {

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

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');

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 {