diff --git a/src/stores/conformance.ts b/src/stores/conformance.ts
index ff3f886..28e6d28 100644
--- a/src/stores/conformance.ts
+++ b/src/stores/conformance.ts
@@ -16,6 +16,36 @@ import abbreviateNumber from '@/module/abbreviateNumber.js';
 import apiClient from "@/api/client.js";
 import apiError from '@/module/apiError.js';
 
+/**
+ * Returns the API base path for the current conformance check,
+ * prioritizing temp IDs over created IDs, and filter over log.
+ * @param {object} state - The store state.
+ * @returns {string} The API base path.
+ */
+function getCheckApiBase(state) {
+  const { conformanceFilterTempCheckId, conformanceLogTempCheckId,
+          conformanceFilterCreateCheckId, conformanceLogCreateCheckId } = state;
+  if (conformanceFilterTempCheckId !== null) return `/api/temp-filter-checks/${conformanceFilterTempCheckId}`;
+  if (conformanceLogTempCheckId !== null) return `/api/temp-log-checks/${conformanceLogTempCheckId}`;
+  if (conformanceFilterCreateCheckId !== null) return `/api/filter-checks/${conformanceFilterCreateCheckId}`;
+  if (conformanceLogCreateCheckId !== null) return `/api/log-checks/${conformanceLogCreateCheckId}`;
+  return '';
+}
+
+/**
+ * Returns the API path for conformance params/temp-checks,
+ * prioritizing filter over log.
+ * @param {object} state - The store state.
+ * @returns {{prefix: string, idParam: string}} The API prefix and ID query param.
+ */
+function getFileTypeApi(state) {
+  const { conformanceFilterId, conformanceLogId } = state;
+  if (conformanceFilterId !== null) {
+    return { prefix: 'filter', idParam: `filter_id=${conformanceFilterId}` };
+  }
+  return { prefix: 'log', idParam: `log_id=${conformanceLogId}` };
+}
+
 /** Pinia store for conformance checking and rule management. */
 export const useConformanceStore = defineStore('conformanceStore', {
   state: () => ({
@@ -202,17 +232,8 @@ export const useConformanceStore = defineStore('conformanceStore', {
      * fetch Log Conformance Parameters api for Rule Settings.
      */
     async getConformanceParams() {
-      const logId = this.conformanceLogId;
-      const filterId = this.conformanceFilterId;
-      let api = '';
-
-      // 先判斷 filter 檔，再判斷 log 檔。
-      if(filterId !== null) {
-        api = `/api/filter-checks/params?filter_id=${filterId}`;
-      }
-      else {
-        api = `/api/log-checks/params?log_id=${logId}`;
-      }
+      const { prefix, idParam } = getFileTypeApi(this);
+      const api = `/api/${prefix}-checks/params?${idParam}`;
       try {
         const response = await apiClient.get(api);
         this.allConformanceTask = response.data.tasks;
@@ -230,24 +251,14 @@ export const useConformanceStore = defineStore('conformanceStore', {
      * @param {object} data - The request payload for the backend.
      */
     async addConformanceCheckId(data) {
-      const logId = this.conformanceLogId;
-      const filterId = this.conformanceFilterId;
-      let api = '';
-
-      // 先判斷 filter 檔，再判斷 log 檔。
-      if(filterId !== null) {
-        api = `/api/temp-filter-checks?filter_id=${filterId}`;
-      }
-      else {
-        api = `/api/temp-log-checks?log_id=${logId}`;
-      }
+      const { prefix, idParam } = getFileTypeApi(this);
+      const api = `/api/temp-${prefix}-checks?${idParam}`;
 
       try {
         const response = await apiClient.post(api, data);
-        if(filterId !== null) {
+        if (prefix === 'filter') {
           this.conformanceFilterTempCheckId = response.data.id;
-        }
-        else {
+        } else {
           this.conformanceLogTempCheckId = response.data.id;
         }
       } catch(error) {
@@ -259,25 +270,7 @@ export const useConformanceStore = defineStore('conformanceStore', {
      * @param {boolean} getRouteFile - Whether called to get the route file (used outside the Conformance page).
      */
     async getConformanceReport(getRouteFile = false) {
-      const logTempCheckId = this.conformanceLogTempCheckId;
-      const filterTempCheckId = this.conformanceFilterTempCheckId;
-      const logCreateCheckId = this.conformanceLogCreateCheckId;
-      const filterCreateCheckId = this.conformanceFilterCreateCheckId;
-      let api = '';
-
-      // 先判斷 Temp 再判斷原 ID；先判斷 filter 檔，再判斷 log 檔。
-      if(filterTempCheckId !== null) {
-        api = `/api/temp-filter-checks/${filterTempCheckId}`;
-      }
-      else if(logTempCheckId !== null) {
-        api = `/api/temp-log-checks/${logTempCheckId}`;
-      }
-      else if(filterCreateCheckId !== null) {
-        api = `/api/filter-checks/${filterCreateCheckId}`;
-      }
-      else if(logCreateCheckId !== null) {
-        api = `/api/log-checks/${logCreateCheckId}`;
-      }
+      const api = getCheckApiBase(this);
       try {
         const response = await apiClient.get(api);
         if(!getRouteFile) {
@@ -294,26 +287,7 @@ export const useConformanceStore = defineStore('conformanceStore', {
      * @param {number} issueNo - The issue number.
      */
     async getConformanceIssue(issueNo) {
-      const logTempCheckId = this.conformanceLogTempCheckId;
-      const filterTempCheckId = this.conformanceFilterTempCheckId;
-      const logCreateCheckId = this.conformanceLogCreateCheckId;
-      const filterCreateCheckId = this.conformanceFilterCreateCheckId;
-      let api = '';
-
-      // 先判斷 filter 檔，再判斷 log 檔。
-      if(filterTempCheckId !== null) {
-        api = `/api/temp-filter-checks/${filterTempCheckId}/issues/${issueNo}`;
-      }
-      else if(logTempCheckId !== null) {
-        api = `/api/temp-log-checks/${logTempCheckId}/issues/${issueNo}`;
-      }
-      else if(filterCreateCheckId !== null) {
-        api = `/api/filter-checks/${filterCreateCheckId}/issues/${issueNo}`;
-      }
-      else if(logCreateCheckId !== null) {
-        api = `/api/log-checks/${logCreateCheckId}/issues/${issueNo}`;
-      }
-
+      const api = `${getCheckApiBase(this)}/issues/${issueNo}`;
       try {
         const response = await apiClient.get(api);
         this.allIssueTraces = response.data.traces;
@@ -328,26 +302,7 @@ export const useConformanceStore = defineStore('conformanceStore', {
      * @param {number} start - The starting index for loading traces.
      */
     async getConformanceTraceDetail(issueNo, traceId, start) {
-      const logTempCheckId = this.conformanceLogTempCheckId;
-      const filterTempCheckId = this.conformanceFilterTempCheckId;
-      const logCreateCheckId = this.conformanceLogCreateCheckId;
-      const filterCreateCheckId = this.conformanceFilterCreateCheckId;
-      let api = '';
-
-      // 先判斷 filter 檔，再判斷 log 檔。
-      if(filterTempCheckId !== null) {
-        api = `/api/temp-filter-checks/${filterTempCheckId}/issues/${issueNo}/traces/${traceId}?start=${start}&page_size=20`;
-      }
-      else if(logTempCheckId !== null) {
-        api = `/api/temp-log-checks/${logTempCheckId}/issues/${issueNo}/traces/${traceId}?start=${start}&page_size=20`;
-      }
-      else if(filterCreateCheckId !== null) {
-        api = `/api/filter-checks/${filterCreateCheckId}/issues/${issueNo}/traces/${traceId}?start=${start}&page_size=20`;
-      }
-      else if(logCreateCheckId !== null) {
-        api = `/api/log-checks/${logCreateCheckId}/issues/${issueNo}/traces/${traceId}?start=${start}&page_size=20`;
-      }
-
+      const api = `${getCheckApiBase(this)}/issues/${issueNo}/traces/${traceId}?start=${start}&page_size=20`;
       try {
         const response = await apiClient.get(api);
         this.allTaskSeq = response.data.task_seq;
@@ -366,18 +321,7 @@ export const useConformanceStore = defineStore('conformanceStore', {
      * @param {number} loopNo - The loop number.
      */
     async getConformanceLoop(loopNo) {
-      const logTempCheckId = this.conformanceLogTempCheckId;
-      const filterTempCheckId = this.conformanceFilterTempCheckId;
-      const logCreateCheckId = this.conformanceLogCreateCheckId;
-      const filterCreateCheckId = this.conformanceFilterCreateCheckId;
-      let api = '';
-
-      // 先判斷 filter 檔，再判斷 log 檔。
-      if(filterTempCheckId !== null) api = `/api/temp-filter-checks/${filterTempCheckId}/loops/${loopNo}`;
-      else if(logTempCheckId !== null) api = `/api/temp-log-checks/${logTempCheckId}/loops/${loopNo}`;
-      else if(filterCreateCheckId !== null) api = `/api/filter-checks/${filterCreateCheckId}/loops/${loopNo}`;
-      else if(logCreateCheckId !== null) api = `/api/log-checks/${logCreateCheckId}/loops/${loopNo}`;
-
+      const api = `${getCheckApiBase(this)}/loops/${loopNo}`;
       try {
         const response = await apiClient.get(api);
         this.allLoopTraces = response.data.traces;
@@ -392,18 +336,7 @@ export const useConformanceStore = defineStore('conformanceStore', {
      * @param {number} start - The starting index for loading traces.
      */
     async getConformanceLoopsTraceDetail(loopNo, traceId, start) {
-      const logTempCheckId = this.conformanceLogTempCheckId;
-      const filterTempCheckId = this.conformanceFilterTempCheckId;
-      const logCreateCheckId = this.conformanceLogCreateCheckId;
-      const filterCreateCheckId = this.conformanceFilterCreateCheckId;
-      let api = '';
-
-      // 先判斷 filter 檔，再判斷 log 檔。
-      if(filterTempCheckId !== null) api = `/api/temp-filter-checks/${filterTempCheckId}/loops/${loopNo}/traces/${traceId}?start=${start}&page_size=20`;
-      else if(logTempCheckId !== null) api = `/api/temp-log-checks/${logTempCheckId}/loops/${loopNo}/traces/${traceId}?start=${start}&page_size=20`;
-      else if(filterCreateCheckId !== null) api = `/api/filter-checks/${filterCreateCheckId}/loops/${loopNo}/traces/${traceId}?start=${start}&page_size=20`;
-      else if(logCreateCheckId !== null) api = `/api/log-checks/${logCreateCheckId}/loops/${loopNo}/traces/${traceId}?start=${start}&page_size=20`;
-
+      const api = `${getCheckApiBase(this)}/loops/${loopNo}/traces/${traceId}?start=${start}&page_size=20`;
       try {
         const response = await apiClient.get(api);
         this.allLoopTaskSeq = response.data.task_seq;
@@ -422,27 +355,21 @@ export const useConformanceStore = defineStore('conformanceStore', {
      * @param {string} value file's name
      */
     async addConformanceCreateCheckId(value) {
-      const logId = this.conformanceLogId;
-      const filterId = this.conformanceFilterId;
-      let api = '';
+      const { prefix, idParam } = getFileTypeApi(this);
+      const api = `/api/${prefix}-checks?${idParam}`;
       const data = {
         name: value,
         rule: this.conformanceRuleData
       };
 
-      // 先判斷 filter 檔，再判斷 log 檔。
-      if(filterId !== null) api = `/api/filter-checks?filter_id=${filterId}`;
-      else api = `/api/log-checks?log_id=${logId}`;
-
       try {
         const response = await apiClient.post(api, data);
-        if(filterId !== null) {
+        if (prefix === 'filter') {
           this.conformanceFilterCreateCheckId = response.data.id;
           this.conformanceFilterTempCheckId = null;
-        }
-        else {
+        } else {
           this.conformanceLogCreateCheckId = response.data.id;
-          this.conformanceLogTempCheckId= null;
+          this.conformanceLogTempCheckId = null;
         }
       }catch(error) {
         apiError(error, 'Failed to add the Conformance Check for a file.');
@@ -452,15 +379,9 @@ export const useConformanceStore = defineStore('conformanceStore', {
      * Update an Existing Conformance Check, log and filter
      */
     async updateConformance() {
-      const logCreateCheckId = this.conformanceLogCreateCheckId;
-      const filterCreateCheckId = this.conformanceFilterCreateCheckId;
-      let api = '';
+      const api = getCheckApiBase(this);
       const data = this.conformanceRuleData;
 
-      // 先判斷有無 Temp ID，再判斷原始檔 ID
-      if(filterCreateCheckId !== null) api = `/api/filter-checks/${filterCreateCheckId}`;
-      else if(logCreateCheckId !== null) api = `/api/log-checks/${logCreateCheckId}`;
-
       try {
         const response = await apiClient.put(api, data);
         this.isUpdateConformance = response.status === 200;
diff --git a/src/stores/files.ts b/src/stores/files.ts
index be9b965..2320002 100644
--- a/src/stores/files.ts
+++ b/src/stores/files.ts
@@ -17,6 +17,24 @@ import Swal from 'sweetalert2';
 import { uploadFailedFirst, uploadFailedSecond, uploadloader, uploadSuccess, deleteSuccess } from '@/module/alertModal.js';
 import { useLoadingStore } from '@/stores/loading';
 
+/** Map of file type to API path segment. */
+const FILE_TYPE_PATHS = {
+  'log': 'logs',
+  'filter': 'filters',
+  'log-check': 'log-checks',
+  'filter-check': 'filter-checks',
+};
+
+/**
+ * Returns the API base path for a file type and ID.
+ * @param {string} type - The file type.
+ * @param {number} id - The file ID.
+ * @returns {string} The API base path.
+ */
+function getFileApiBase(type, id) {
+  return `/api/${FILE_TYPE_PATHS[type]}/${id}`;
+}
+
 /** Pinia store for file CRUD operations and upload workflow. */
 export const useFilesStore = defineStore('filesStore', {
   state: () => ({
@@ -205,25 +223,9 @@ export const useFilesStore = defineStore('filesStore', {
         fileName = this.uploadFileName;
       }
 
-      let api;
       const data = {"name": fileName};
-
-      switch (type) {
-        case 'log':
-          api = `/api/logs/${id}/name`;
-          break;
-        case 'filter':
-          api = `/api/filters/${id}/name`;
-          break;
-        case 'log-check':
-          api = `/api/log-checks/${id}/name`;
-          break;
-        case 'filter-check':
-          api = `/api/filter-checks/${id}/name`;
-          break;
-      }
       try {
-        await apiClient.put(api, data);
+        await apiClient.put(`${getFileApiBase(type, id)}/name`, data);
         this.uploadFileName = null;
         await this.fetchAllFiles();
       } catch(error) {
@@ -236,24 +238,8 @@ export const useFilesStore = defineStore('filesStore', {
      * @param {number} id - The file ID.
      */
     async getDependents(type, id) {
-      let api;
-
-      switch (type) {
-        case 'log':
-          api = `/api/logs/${id}/dependents`;
-          break;
-        case 'filter':
-          api = `/api/filters/${id}/dependents`;
-          break;
-        case 'log-check':
-          api = `/api/log-checks/${id}/dependents`;
-          break;
-        case 'filter-check':
-          api = `/api/filter-checks/${id}/dependents`;
-          break;
-      }
       try {
-        const response = await apiClient.get(api);
+        const response = await apiClient.get(`${getFileApiBase(type, id)}/dependents`);
         this.allDependentsData = response.data;
       } catch(error) {
         apiError(error, 'Failed to get Dependents of the files.');
@@ -265,30 +251,14 @@ export const useFilesStore = defineStore('filesStore', {
      * @param {number} id - The file ID.
      */
     async deleteFile(type, id) {
-      let api;
-
       if(id === null || id === undefined || isNaN(id)) {
         console.error('Delete File API Error: invalid id');
         return;
       };
       const loading = useLoadingStore();
       loading.isLoading = true;
-      switch (type) {
-        case 'log':
-          api = `/api/logs/${id}`;
-          break;
-        case 'filter':
-          api = `/api/filters/${id}`;
-          break;
-        case 'log-check':
-          api = `/api/log-checks/${id}`;
-          break;
-        case 'filter-check':
-          api = `/api/filter-checks/${id}`;
-          break;
-      }
       try {
-        await apiClient.delete(api);
+        await apiClient.delete(getFileApiBase(type, id));
         await this.fetchAllFiles();
         await deleteSuccess();
       } catch(error) {
@@ -322,26 +292,9 @@ export const useFilesStore = defineStore('filesStore', {
      * @param {string} fileName - The file name.
      */
     async downloadFileCSV(type, id, fileName) {
-      let api;
-
-      switch (type) {
-        case 'log':
-          api = `/api/logs/${id}/csv`;
-          break;
-        case 'filter':
-          api = `/api/filters/${id}/csv`;
-          break;
-        // case 'log-check':
-        //   api = `/api/log-checks/${id}/csv`;
-        //   break;
-        // case 'filter-check':
-        //   api = `/api/filter-checks/${id}/csv`;
-        //   break;
-        default:
-          return;
-      }
+      if (type !== 'log' && type !== 'filter') return;
       try {
-        const response = await apiClient.get(api);
+        const response = await apiClient.get(`${getFileApiBase(type, id)}/csv`);
         const csvData = response.data;
         const blob = new Blob([csvData], { type: 'text/csv' });
         const url = window.URL.createObjectURL(blob);