Add Relaxed Data Binding Support for Client Generation

gradle.properties

@@ -55,7 +55,7 @@ stdlibJwtVersion=2.13.1-20241113-162400-b59ccfa
 stdlibOAuth2Version=2.12.1-20241113-162400-4c6ddfe
 
 # Stdlib Level 05
-stdlibHttpVersion=2.13.0-20241114-182900-7e9f66a
+stdlibHttpVersion=2.13.0-20241126-143900-9551ecd
 
 # Stdlib Level 06
 stdlibGrpcVersion=1.13.0-20241114-195700-5188f60

openapi-cli/src/test/java/io/ballerina/openapi/generators/common/TestConstants.java

@@ -38,7 +38,13 @@ public class TestConstants {
             "    http:ProxyConfig proxy?;\n" +
             "    # Enables the inbound payload validation functionality which provided by the constraint package. " +
             "Enabled by default\n" +
-            "    boolean validation = true; " +
+            "    boolean validation = true;\n" +
+            "    # Enables or disables relaxed data binding on the client side. Disabled by default.\n" +
+            "    # When enabled, the JSON data will be projected to the Ballerina record type and during the " +
+            "projection, \n" +
+            "    # nil values will be considered as optional fields and absent fields will be considered for " +
+            "nilable types\n" +
+            "    boolean laxDataBinding = true;\n" +
             "|};";
 
     public static final String CLIENT_HTTP1_SETTINGS = "# Provides settings related to HTTP/1.x protocol.\n" +
@@ -210,6 +216,12 @@ public class TestConstants {
             "    # Enables the inbound payload validation functionality which provided by the constraint package. " +
             "Enabled by default\n" +
             "    boolean validation = true;\n" +
+            "    # Enables or disables relaxed data binding on the client side. Disabled by default.\n" +
+            "    # When enabled, the JSON data will be projected to the Ballerina record type and during the " +
+            "projection, \n" +
+            "    # nil values will be considered as optional fields and absent fields will be considered for " +
+            "nilable types\n" +
+            "    boolean laxDataBinding = true;\n" +
             "|};";
     public static final String CONNECTION_CONFIG_MIXED_AUTH = "" +
             "# Provides a set of configurations for controlling the behaviours when communicating with a " +
@@ -248,6 +260,12 @@ public class TestConstants {
             "    # Enables the inbound payload validation functionality which provided by the constraint package. " +
             "Enabled by default\n" +
             "    boolean validation = true;\n" +
+            "    # Enables or disables relaxed data binding on the client side. Disabled by default.\n" +
+            "    # When enabled, the JSON data will be projected to the Ballerina record type and during the " +
+            "projection, \n" +
+            "    # nil values will be considered as optional fields and absent fields will be considered for " +
+            "nilable types\n" +
+            "    boolean laxDataBinding = true;\n" +
             "|};";
 
     public static final String CONNECTION_CONFIG_HTTP_VERSION_1_1 = "" +
@@ -284,6 +302,12 @@ public class TestConstants {
             "    # Enables the inbound payload validation functionality which provided by the constraint package. " +
             "    Enabled by default\n" +
             "    boolean validation = true;\n" +
+            "    # Enables or disables relaxed data binding on the client side. Disabled by default.\n" +
+            "    # When enabled, the JSON data will be projected to the Ballerina record type and during the " +
+            "projection,\n" +
+            "    # nil values will be considered as optional fields and absent fields will be considered for " +
+            "nilable types\n" +
+            "    boolean laxDataBinding = true;\n" +
             "|};";
     public static final String OAUTH2_REFRESH_TOKEN_GRANT_CONFIG_RECORD = "#OAuth2ClientCredentialsGrantConfigs" +
             "publictypeOAuth2ClientCredentialsGrantConfigrecord{|*http:OAuth2ClientCredentialsGrantConfig;" +

openapi-cli/src/test/resources/expected_gen/bal_name_ext_client.bal

@@ -353,4 +353,8 @@ public type ConnectionConfig record {|
     http:ProxyConfig proxy?;
     # Enables the inbound payload validation functionality which provided by the constraint package. Enabled by default
     boolean validation = true;
+    # Enables or disables relaxed data binding on the client side. Disabled by default.
+    # When enabled, the JSON data will be projected to the Ballerina record type and during the projection,
+    # nil values will be considered as optional fields and absent fields will be considered for nilable types
+    boolean laxDataBinding = true;
 |};

openapi-cli/src/test/resources/expected_gen/constraint_import_types.bal

@@ -64,4 +64,8 @@ public type ConnectionConfig record {|
     http:ProxyConfig proxy?;
     # Enables the inbound payload validation functionality which provided by the constraint package. Enabled by default
     boolean validation = true;
+    # Enables or disables relaxed data binding on the client side. Disabled by default.
+    # When enabled, the JSON data will be projected to the Ballerina record type and during the projection,
+    # nil values will be considered as optional fields and absent fields will be considered for nilable types
+    boolean laxDataBinding = true;
 |};

openapi-cli/src/test/resources/expected_gen/default_headers_conflict_with_query.bal

@@ -301,6 +301,10 @@ public type ConnectionConfig record {|
     http:ProxyConfig proxy?;
     # Enables the inbound payload validation functionality which provided by the constraint package. Enabled by default
     boolean validation = true;
+    # Enables or disables relaxed data binding on the client side. Disabled by default.
+    # When enabled, the JSON data will be projected to the Ballerina record type and during the projection,
+    # nil values will be considered as optional fields and absent fields will be considered for nilable types
+    boolean laxDataBinding = true;
 |};
 
 # Represents the Queries record for the operation: getAlbumsId

openapi-cli/src/test/resources/expected_gen/default_headers_queries_parameters.bal

@@ -307,6 +307,10 @@ public type ConnectionConfig record {|
     http:ProxyConfig proxy?;
     # Enables the inbound payload validation functionality which provided by the constraint package. Enabled by default
     boolean validation = true;
+    # Enables or disables relaxed data binding on the client side. Disabled by default.
+    # When enabled, the JSON data will be projected to the Ballerina record type and during the projection,
+    # nil values will be considered as optional fields and absent fields will be considered for nilable types
+    boolean laxDataBinding = true;
 |};
 
 # Represents the Queries record for the operation: Get_Albums_Id

openapi-cli/src/test/resources/expected_gen/default_value_generation_client.bal

@@ -324,6 +324,10 @@ public type ConnectionConfig record {|
     http:ProxyConfig proxy?;
     # Enables the inbound payload validation functionality which provided by the constraint package. Enabled by default
     boolean validation = true;
+    # Enables or disables relaxed data binding on the client side. Disabled by default.
+    # When enabled, the JSON data will be projected to the Ballerina record type and during the projection,
+    # nil values will be considered as optional fields and absent fields will be considered for nilable types
+    boolean laxDataBinding = true;
 |};
 
 # Represents the Queries record for the operation: getAlbumsId

openapi-cli/src/test/resources/expected_gen/jira_openapi_client.bal

@@ -6737,6 +6737,10 @@ public type ConnectionConfig record {|
     http:ProxyConfig proxy?;
     # Enables the inbound payload validation functionality which provided by the constraint package. Enabled by default
     boolean validation = true;
+    # Enables or disables relaxed data binding on the client side. Disabled by default.
+    # When enabled, the JSON data will be projected to the Ballerina record type and during the projection,
+    # nil values will be considered as optional fields and absent fields will be considered for nilable types
+    boolean laxDataBinding = true;
 |};
 
 # Represents the Queries record for the operation: getNotificationSchemeForProject

openapi-cli/src/test/resources/expected_gen/licenses/schema.bal

@@ -77,4 +77,8 @@ public type ConnectionConfig record {|
     http:ProxyConfig proxy?;
     # Enables the inbound payload validation functionality which provided by the constraint package. Enabled by default
     boolean validation = true;
+    # Enables or disables relaxed data binding on the client side. Disabled by default.
+    # When enabled, the JSON data will be projected to the Ballerina record type and during the projection,
+    # nil values will be considered as optional fields and absent fields will be considered for nilable types
+    boolean laxDataBinding = true;
 |};

openapi-cli/src/test/resources/expected_gen/licenses/schema_for_both_service_client.bal

@@ -87,4 +87,8 @@ public type ConnectionConfig record {|
     http:ProxyConfig proxy?;
     # Enables the inbound payload validation functionality which provided by the constraint package. Enabled by default
     boolean validation = true;
+    # Enables or disables relaxed data binding on the client side. Disabled by default.
+    # When enabled, the JSON data will be projected to the Ballerina record type and during the projection,
+    # nil values will be considered as optional fields and absent fields will be considered for nilable types
+    boolean laxDataBinding = true;
 |};

openapi-cli/src/test/resources/expected_gen/licenses/schema_with_user_given_license.bal

@@ -86,4 +86,8 @@ public type ConnectionConfig record {|
     http:ProxyConfig proxy?;
     # Enables the inbound payload validation functionality which provided by the constraint package. Enabled by default
     boolean validation = true;
+    # Enables or disables relaxed data binding on the client side. Disabled by default.
+    # When enabled, the JSON data will be projected to the Ballerina record type and during the projection,
+    # nil values will be considered as optional fields and absent fields will be considered for nilable types
+    boolean laxDataBinding = true;
 |};

openapi-cli/src/test/resources/expected_gen/licenses/types_for_both_service_client_generations.bal

@@ -87,4 +87,8 @@ public type ConnectionConfig record {|
     http:ProxyConfig proxy?;
     # Enables the inbound payload validation functionality which provided by the constraint package. Enabled by default
     boolean validation = true;
+    # Enables or disables relaxed data binding on the client side. Disabled by default.
+    # When enabled, the JSON data will be projected to the Ballerina record type and during the projection,
+    # nil values will be considered as optional fields and absent fields will be considered for nilable types
+    boolean laxDataBinding = true;
 |};

openapi-cli/src/test/resources/expected_gen/non_constraint_import_types.bal

@@ -62,4 +62,8 @@ public type ConnectionConfig record {|
     http:ProxyConfig proxy?;
     # Enables the inbound payload validation functionality which provided by the constraint package. Enabled by default
     boolean validation = true;
+    # Enables or disables relaxed data binding on the client side. Disabled by default.
+    # When enabled, the JSON data will be projected to the Ballerina record type and during the projection,
+    # nil values will be considered as optional fields and absent fields will be considered for nilable types
+    boolean laxDataBinding = true;
 |};

openapi-cli/src/test/resources/expected_gen/nullable_false_types.bal

@@ -72,4 +72,8 @@ public type ConnectionConfig record {|
     http:ProxyConfig proxy?;
     # Enables the inbound payload validation functionality which provided by the constraint package. Enabled by default
     boolean validation = true;
+    # Enables or disables relaxed data binding on the client side. Disabled by default.
+    # When enabled, the JSON data will be projected to the Ballerina record type and during the projection,
+    # nil values will be considered as optional fields and absent fields will be considered for nilable types
+    boolean laxDataBinding = true;
 |};

openapi-cli/src/test/resources/expected_gen/nullable_types.bal

@@ -77,4 +77,8 @@ public type ConnectionConfig record {|
     http:ProxyConfig proxy?;
     # Enables the inbound payload validation functionality which provided by the constraint package. Enabled by default
     boolean validation = true;
+    # Enables or disables relaxed data binding on the client side. Disabled by default.
+    # When enabled, the JSON data will be projected to the Ballerina record type and during the projection,
+    # nil values will be considered as optional fields and absent fields will be considered for nilable types
+    boolean laxDataBinding = true;
 |};

openapi-cli/src/test/resources/expected_gen/petstore_schema.bal

@@ -87,4 +87,8 @@ public type ConnectionConfig record {|
     http:ProxyConfig proxy?;
     # Enables the inbound payload validation functionality which provided by the constraint package. Enabled by default
     boolean validation = true;
+    # Enables or disables relaxed data binding on the client side. Disabled by default.
+    # When enabled, the JSON data will be projected to the Ballerina record type and during the projection,
+    # nil values will be considered as optional fields and absent fields will be considered for nilable types
+    boolean laxDataBinding = true;
 |};

openapi-cli/src/test/resources/expected_gen/petstore_schema_2.bal

@@ -82,4 +82,8 @@ public type ConnectionConfig record {|
     http:ProxyConfig proxy?;
     # Enables the inbound payload validation functionality which provided by the constraint package. Enabled by default
     boolean validation = true;
+    # Enables or disables relaxed data binding on the client side. Disabled by default.
+    # When enabled, the JSON data will be projected to the Ballerina record type and during the projection,
+    # nil values will be considered as optional fields and absent fields will be considered for nilable types
+    boolean laxDataBinding = true;
 |};

openapi-cli/src/test/resources/expected_gen/petstore_schema_type.bal

@@ -74,4 +74,8 @@ public type ConnectionConfig record {|
     http:ProxyConfig proxy?;
     # Enables the inbound payload validation functionality which provided by the constraint package. Enabled by default
     boolean validation = true;
+    # Enables or disables relaxed data binding on the client side. Disabled by default.
+    # When enabled, the JSON data will be projected to the Ballerina record type and during the projection,
+    # nil values will be considered as optional fields and absent fields will be considered for nilable types
+    boolean laxDataBinding = true;
 |};

openapi-cli/src/test/resources/expected_gen/petstore_schema_with_license.bal

@@ -86,4 +86,8 @@ public type ConnectionConfig record {|
     http:ProxyConfig proxy?;
     # Enables the inbound payload validation functionality which provided by the constraint package. Enabled by default
     boolean validation = true;
+    # Enables or disables relaxed data binding on the client side. Disabled by default.
+    # When enabled, the JSON data will be projected to the Ballerina record type and during the projection,
+    # nil values will be considered as optional fields and absent fields will be considered for nilable types
+    boolean laxDataBinding = true;
 |};

openapi-cli/src/test/resources/expected_gen/sanitize_array_member.bal

@@ -330,4 +330,8 @@ public type ConnectionConfig record {|
     http:ProxyConfig proxy?;
     # Enables the inbound payload validation functionality which provided by the constraint package. Enabled by default
     boolean validation = true;
+    # Enables or disables relaxed data binding on the client side. Disabled by default.
+    # When enabled, the JSON data will be projected to the Ballerina record type and during the projection,
+    # nil values will be considered as optional fields and absent fields will be considered for nilable types
+    boolean laxDataBinding = true;
 |};

openapi-cli/src/test/resources/expected_gen/type_filtered_by_tags.bal

@@ -77,4 +77,8 @@ public type ConnectionConfig record {|
     http:ProxyConfig proxy?;
     # Enables the inbound payload validation functionality which provided by the constraint package. Enabled by default
     boolean validation = true;
+    # Enables or disables relaxed data binding on the client side. Disabled by default.
+    # When enabled, the JSON data will be projected to the Ballerina record type and during the projection,
+    # nil values will be considered as optional fields and absent fields will be considered for nilable types
+    boolean laxDataBinding = true;
 |};

openapi-cli/src/test/resources/expected_gen/type_name_with_mixed_case.bal

@@ -330,4 +330,8 @@ public type ConnectionConfig record {|
     http:ProxyConfig proxy?;
     # Enables the inbound payload validation functionality which provided by the constraint package. Enabled by default
     boolean validation = true;
+    # Enables or disables relaxed data binding on the client side. Disabled by default.
+    # When enabled, the JSON data will be projected to the Ballerina record type and during the projection,
+    # nil values will be considered as optional fields and absent fields will be considered for nilable types
+    boolean laxDataBinding = true;
 |};

openapi-cli/src/test/resources/generators/client/ballerina/union_path_types.bal

@@ -58,4 +58,8 @@ public type ConnectionConfig record {|
     http:ProxyConfig proxy?;
     # Enables the inbound payload validation functionality which provided by the constraint package. Enabled by default
     boolean validation = true;
+    # Enables or disables relaxed data binding on the client side. Disabled by default.
+    # When enabled, the JSON data will be projected to the Ballerina record type and during the projection,
+    # nil values will be considered as optional fields and absent fields will be considered for nilable types
+    boolean laxDataBinding = true;
 |};

openapi-core/src/main/java/io/ballerina/openapi/core/generators/client/AuthConfigGeneratorImp.java

@@ -383,6 +383,11 @@ public void addAuthRelatedRecords(OpenAPI openAPI) throws ClientException {
      *          # Enables the inbound payload validation functionality which provided by the constraint package.
      *          # Enabled by default
      *          boolean validation = true;
+     *          # Enables or disables relaxed data binding on the service side. Disabled by default.
+     *          # When enabled, the JSON data will be projected to the Ballerina record type and during the projection,
+     *          # nil values will be considered as optional fields and absent fields will be considered for
+     *          # nilable types
+     *          boolean laxDataBinding = true;
      * |};
      * </pre>
      * Scenario 1 : For openapi contracts with no authentication mechanism given, auth field will not be generated
@@ -1333,6 +1338,19 @@ private List<Node> getClientConfigRecordFields() {
                 validationMetadata, null, validationFieldType, validationFieldName,
                 equalToken, createRequiredExpressionNode(createToken(TRUE_KEYWORD)), semicolonToken);
         recordFieldNodes.add(validateFieldNode);
+
+        // add laxBinding for data binding
+        String apiComment = "Enables or disables relaxed data binding on the client side. " +
+                "Disabled by default.\nWhen enabled, the JSON data will be projected to the Ballerina record type" +
+                " and during the projection, \nnil values will be considered as optional fields and absent fields " +
+                "will be considered for nilable types";
+        MetadataNode laxDataBindingMetadata = getMetadataNode(apiComment);
+        IdentifierToken laxDataBindingFieldName = AbstractNodeFactory.createIdentifierToken("laxDataBinding");
+        TypeDescriptorNode laxDataBindingFieldType = createSimpleNameReferenceNode(createIdentifierToken(BOOLEAN));
+        RecordFieldWithDefaultValueNode laxDataBindingFieldNode = NodeFactory.createRecordFieldWithDefaultValueNode(
+                laxDataBindingMetadata, null, laxDataBindingFieldType, laxDataBindingFieldName,
+                equalToken, createRequiredExpressionNode(createToken(TRUE_KEYWORD)), semicolonToken);
+        recordFieldNodes.add(laxDataBindingFieldNode);
         return recordFieldNodes;
     }
 

openapi-integration-tests/src/test/resources/ballerina_sources/resources/expected_types.bal

@@ -102,4 +102,8 @@ public type ConnectionConfig record {|
     http:ProxyConfig proxy?;
     # Enables the inbound payload validation functionality which provided by the constraint package. Enabled by default
     boolean validation = true;
+    # Enables or disables relaxed data binding on the client side. Disabled by default.
+    # When enabled, the JSON data will be projected to the Ballerina record type and during the projection,
+    # nil values will be considered as optional fields and absent fields will be considered for nilable types
+    boolean laxDataBinding = true;
 |};

openapi-integration-tests/src/test/resources/client/expected/project-09/types.bal

@@ -117,6 +117,10 @@ public type ConnectionConfig record {|
     http:ProxyConfig proxy?;
     # Enables the inbound payload validation functionality which provided by the constraint package. Enabled by default
     boolean validation = true;
+    # Enables or disables relaxed data binding on the client side. Disabled by default.
+    # When enabled, the JSON data will be projected to the Ballerina record type and during the projection,
+    # nil values will be considered as optional fields and absent fields will be considered for nilable types
+    boolean laxDataBinding = true;
 |};
 
 # Request for the chat completions using extensions