From 408da947f6e0ebdd5cd97274365cba72bf2583eb Mon Sep 17 00:00:00 2001
From: Henry <hzj94@hotmail.com>
Date: Wed, 25 Jun 2025 22:07:27 +0100
Subject: [PATCH] Bugfix/Enhance input configuration merging logic in
 replaceInputsWithConfig

Improve the handling of input configurations by merging existing values with overrides instead of complete replacement. This includes support for merging objects and parsing JSON strings when necessary.
---
 packages/server/src/utils/index.ts | 28 +++++++++++++++++++++++++++-
 1 file changed, 27 insertions(+), 1 deletion(-)

diff --git a/packages/server/src/utils/index.ts b/packages/server/src/utils/index.ts
index 67d2ee37b..89aa4e3b7 100644
--- a/packages/server/src/utils/index.ts
+++ b/packages/server/src/utils/index.ts
@@ -1149,7 +1149,33 @@ export const replaceInputsWithConfig = (
                 if (nodeIds.includes(flowNodeData.id)) {
                     // Check if this parameter is enabled
                     if (isParameterEnabled(flowNodeData.label, config)) {
-                        inputsObj[config] = overrideConfig[config][flowNodeData.id]
+                        const existingValue = inputsObj[config]
+                        const overrideValue = overrideConfig[config][flowNodeData.id]
+
+                        // Merge objects instead of completely overriding
+                        if (
+                            typeof existingValue === 'object' &&
+                            typeof overrideValue === 'object' &&
+                            !Array.isArray(existingValue) &&
+                            !Array.isArray(overrideValue) &&
+                            existingValue !== null &&
+                            overrideValue !== null
+                        ) {
+                            inputsObj[config] = Object.assign({}, existingValue, overrideValue)
+                        } else if (typeof existingValue === 'string' && existingValue.startsWith('{') && existingValue.endsWith('}')) {
+                            try {
+                                const parsedExisting = JSON.parse(existingValue)
+                                if (typeof overrideValue === 'object' && !Array.isArray(overrideValue)) {
+                                    inputsObj[config] = Object.assign({}, parsedExisting, overrideValue)
+                                } else {
+                                    inputsObj[config] = overrideValue
+                                }
+                            } catch (e) {
+                                inputsObj[config] = overrideValue
+                            }
+                        } else {
+                            inputsObj[config] = overrideValue
+                        }
                     }
                     continue
                 } else if (nodeIds.some((nodeId) => nodeId.includes(flowNodeData.name))) {