fix: ability to customize validation error handling

Author: mdevils

docs/interfaces/openapi_client.CommonHttpClientOptions.md

@@ -15,6 +15,7 @@ Options for the common HTTP client.
 - [errorClass](openapi_client.CommonHttpClientOptions.md#errorclass)
 - [fetch](openapi_client.CommonHttpClientOptions.md#fetch)
 - [formatHttpErrorMessage](openapi_client.CommonHttpClientOptions.md#formathttperrormessage)
+- [handleValidationError](openapi_client.CommonHttpClientOptions.md#handlevalidationerror)
 - [headers](openapi_client.CommonHttpClientOptions.md#headers)
 - [preprocessFetchResponse](openapi_client.CommonHttpClientOptions.md#preprocessfetchresponse)
 - [preprocessRequest](openapi_client.CommonHttpClientOptions.md#preprocessrequest)
@@ -105,6 +106,28 @@ Format the HTTP error message.
 
 ___
 
+### handleValidationError
+
+• `Optional` **handleValidationError**: (`error`: `Error`) => `void`
+
+#### Type declaration
+
+▸ (`error`): `void`
+
+Custom validation error handling. Can be used to log errors.
+
+##### Parameters
+
+| Name | Type |
+| :------ | :------ |
+| `error` | `Error` |
+
+##### Returns
+
+`void`
+
+___
+
 ### headers
 
 • `Optional` **headers**: [`CommonHttpClientRequestHeaders`](openapi_client.CommonHttpClientRequestHeaders.md)

src/schema-to-typescript/common/core/common-http-client.ts

@@ -45,6 +45,10 @@ export interface CommonHttpClientOptions {
      * Format the HTTP error message.
      */
     formatHttpErrorMessage?: (response: CommonHttpClientFetchResponse, request: CommonHttpClientFetchRequest) => string;
+    /**
+     * Custom validation error handling. Can be used to log errors.
+     */
+    handleValidationError?: (error: Error) => void;
 }
 
 /**
@@ -879,6 +883,21 @@ export class CommonHttpClient {
         };
     }
 
+    public validation<D>(validator: (data: D) => D): (data: D) => D {
+        const handleValidationError = this.options.handleValidationError;
+        if (!handleValidationError) {
+            return validator;
+        }
+        return (data: D) => {
+            try {
+                return validator(data);
+            } catch (error) {
+                handleValidationError(error instanceof Error ? error : new Error(String(error)));
+                return data;
+            }
+        };
+    }
+
     /**
      * Remove undefined and null values from headers.
      */

src/schema-to-typescript/common/operation-return.ts

@@ -210,8 +210,16 @@ export function getOperationReturnType({
         validators.push((expression) =>
             callExpression(memberExpression(expression, identifier('then')), [
                 callExpression(
-                    memberExpression(identifier(validationSchemaStorageImportName), identifier('validator')),
-                    [stringLiteral(validationSchemaName)]
+                    memberExpression(
+                        callExpression(memberExpression(thisExpression(), identifier('getClientInstance')), []),
+                        identifier('validation')
+                    ),
+                    [
+                        callExpression(
+                            memberExpression(identifier(validationSchemaStorageImportName), identifier('validator')),
+                            [stringLiteral(validationSchemaName)]
+                        )
+                    ]
                 )
             ])
         );