[typescript-fetch] Omit readOnly properties from request models (OpenAPITools#18065)

* omit readOnly properties on requests

* update the sample

Author: kota65535

modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/TypeScriptFetchClientCodegen.java

@@ -26,12 +26,12 @@
 import io.swagger.v3.oas.models.responses.ApiResponse;
 import io.swagger.v3.oas.models.servers.Server;
 import io.swagger.v3.parser.util.SchemaTypeUtil;
+import java.util.stream.Collectors;
 import org.openapitools.codegen.*;
 import org.openapitools.codegen.meta.features.DocumentationFeature;
 import org.openapitools.codegen.meta.features.SecurityFeature;
 import org.openapitools.codegen.model.ModelMap;
 import org.openapitools.codegen.model.ModelsMap;
-import org.openapitools.codegen.model.OperationMap;
 import org.openapitools.codegen.model.OperationsMap;
 import org.openapitools.codegen.templating.mustache.IndentedLambda;
 import org.openapitools.codegen.utils.ModelUtils;
@@ -986,6 +986,8 @@ private static String getItemsDataType(CodegenProperty items) {
     class ExtendedCodegenParameter extends CodegenParameter {
         public String dataTypeAlternate;
         public boolean isUniqueId; // this parameter represents a unique id (x-isUniqueId: true)
+        public List<CodegenProperty> readOnlyVars; // a list of read-only properties
+        public boolean hasReadOnly = false; // indicates the type has at least one read-only property
 
         public boolean itemsAreUniqueId() {
             return TypeScriptFetchClientCodegen.itemsAreUniqueId(this.items);
@@ -1081,8 +1083,11 @@ public ExtendedCodegenParameter(CodegenParameter cp) {
             this.minItems = cp.minItems;
             this.uniqueItems = cp.uniqueItems;
             this.multipleOf = cp.multipleOf;
+            this.setHasVars(cp.getHasVars());
+            this.setHasRequired(cp.getHasRequired());
             this.setMaxProperties(cp.getMaxProperties());
             this.setMinProperties(cp.getMinProperties());
+            setReadOnlyVars();
         }
 
         @Override
@@ -1123,6 +1128,11 @@ public String toString() {
             sb.append(", dataTypeAlternate='").append(dataTypeAlternate).append('\'');
             return sb.toString();
         }
+
+        private void setReadOnlyVars() {
+            readOnlyVars = vars.stream().filter(v -> v.isReadOnly).collect(Collectors.toList());
+            hasReadOnly = !readOnlyVars.isEmpty();
+        }
     }
 
     class ExtendedCodegenProperty extends CodegenProperty {

modules/openapi-generator/src/main/resources/typescript-fetch/apis.mustache

@@ -24,7 +24,7 @@ import {
 {{#allParams.0}}
 export interface {{#prefixParameterInterfaces}}{{classname}}{{/prefixParameterInterfaces}}{{operationIdCamelCase}}Request {
 {{#allParams}}
-    {{paramName}}{{^required}}?{{/required}}: {{#isEnum}}{{{datatypeWithEnum}}}{{/isEnum}}{{^isEnum}}{{{dataType}}}{{#isNullable}}{{#required}} | null{{/required}}{{/isNullable}}{{/isEnum}};
+    {{paramName}}{{^required}}?{{/required}}: {{#isEnum}}{{{datatypeWithEnum}}}{{/isEnum}}{{^isEnum}}{{#hasReadOnly}}Omit<{{{dataType}}}, {{#readOnlyVars}}'{{baseName}}'{{^-last}}|{{/-last}}{{/readOnlyVars}}>{{/hasReadOnly}}{{^hasReadOnly}}{{{dataType}}}{{/hasReadOnly}}{{#isNullable}}{{#required}} | null{{/required}}{{/isNullable}}{{/isEnum}};
 {{/allParams}}
 }
 

modules/openapi-generator/src/main/resources/typescript-fetch/modelGeneric.mustache

@@ -100,7 +100,7 @@ export function {{classname}}FromJSONTyped(json: any, ignoreDiscriminator: boole
     {{/hasVars}}
 }
 
-export function {{classname}}ToJSON(value?: {{classname}} | null): any {
+export function {{classname}}ToJSON(value?: {{#hasReadOnly}}Omit<{{classname}}, {{#readOnlyVars}}'{{baseName}}'{{^-last}}|{{/-last}}{{/readOnlyVars}}>{{/hasReadOnly}}{{^hasReadOnly}}{{classname}}{{/hasReadOnly}} | null): any {
     {{#hasVars}}
     if (value == null) {
         return value;

samples/client/petstore/typescript-fetch/builds/allOf-readonly/models/Club.ts

@@ -55,7 +55,7 @@ export function ClubFromJSONTyped(json: any, ignoreDiscriminator: boolean): Club
     };
 }
 
-export function ClubToJSON(value?: Club | null): any {
+export function ClubToJSON(value?: Omit<Club, 'owner'> | null): any {
     if (value == null) {
         return value;
     }

samples/client/petstore/typescript-fetch/builds/default-v3.0/models/HasOnlyReadOnly.ts

@@ -55,7 +55,7 @@ export function HasOnlyReadOnlyFromJSONTyped(json: any, ignoreDiscriminator: boo
     };
 }
 
-export function HasOnlyReadOnlyToJSON(value?: HasOnlyReadOnly | null): any {
+export function HasOnlyReadOnlyToJSON(value?: Omit<HasOnlyReadOnly, 'bar'|'foo'> | null): any {
     if (value == null) {
         return value;
     }

samples/client/petstore/typescript-fetch/builds/default-v3.0/models/Name.ts

@@ -70,7 +70,7 @@ export function NameFromJSONTyped(json: any, ignoreDiscriminator: boolean): Name
     };
 }
 
-export function NameToJSON(value?: Name | null): any {
+export function NameToJSON(value?: Omit<Name, 'snake_case'|'123Number'> | null): any {
     if (value == null) {
         return value;
     }

samples/client/petstore/typescript-fetch/builds/default-v3.0/models/ReadOnlyFirst.ts

@@ -55,7 +55,7 @@ export function ReadOnlyFirstFromJSONTyped(json: any, ignoreDiscriminator: boole
     };
 }
 
-export function ReadOnlyFirstToJSON(value?: ReadOnlyFirst | null): any {
+export function ReadOnlyFirstToJSON(value?: Omit<ReadOnlyFirst, 'bar'> | null): any {
     if (value == null) {
         return value;
     }

samples/client/petstore/typescript-fetch/builds/snakecase-discriminator/models/HasOnlyReadOnly.ts

@@ -55,7 +55,7 @@ export function HasOnlyReadOnlyFromJSONTyped(json: any, ignoreDiscriminator: boo
     };
 }
 
-export function HasOnlyReadOnlyToJSON(value?: HasOnlyReadOnly | null): any {
+export function HasOnlyReadOnlyToJSON(value?: Omit<HasOnlyReadOnly, 'bar'|'foo'> | null): any {
     if (value == null) {
         return value;
     }

samples/client/petstore/typescript-fetch/builds/snakecase-discriminator/models/Name.ts

@@ -70,7 +70,7 @@ export function NameFromJSONTyped(json: any, ignoreDiscriminator: boolean): Name
     };
 }
 
-export function NameToJSON(value?: Name | null): any {
+export function NameToJSON(value?: Omit<Name, 'snake_case'|'123Number'> | null): any {
     if (value == null) {
         return value;
     }

samples/client/petstore/typescript-fetch/builds/snakecase-discriminator/models/ReadOnlyFirst.ts

@@ -55,7 +55,7 @@ export function ReadOnlyFirstFromJSONTyped(json: any, ignoreDiscriminator: boole
     };
 }
 
-export function ReadOnlyFirstToJSON(value?: ReadOnlyFirst | null): any {
+export function ReadOnlyFirstToJSON(value?: Omit<ReadOnlyFirst, 'bar'> | null): any {
     if (value == null) {
         return value;
     }