feat: add retrieve series's instances metadata

- Add retrieve study's series's instances metadata

api/dicom-web/controller/WADO-RS/retrieveSeriesMetadata.js

@@ -0,0 +1,50 @@
+const mongoose = require("mongoose");
+const _ = require("lodash");
+const fs = require("fs");
+const path = require("path");
+const fileExist = require("../../../../utils/file/fileExist");
+const wadoService = require("./service/WADO-RS.service");
+const errorResponse = require("../../../../utils/errorResponse/errorResponseMessage");
+const { logger } = require("../../../../utils/log");
+
+/**
+ * 
+ * @param {import("http").IncomingMessage} req 
+ * @param {import("http").ServerResponse} res 
+ */
+module.exports = async function(req, res) {
+    logger.info(`[WADO-RS] [Get Study's Series' Instances Metadata] [series UID: ${req.params.seriesUID}, study UID: ${req.params.studyUID}]`);
+    try {
+        let responseMetadata = [];
+        let imagesPathList = await wadoService.getSeriesImagesPath(req.params);
+        if (imagesPathList) {
+            for (let imagePathObj of imagesPathList) {
+                let instanceDir = path.dirname(imagePathObj.instancePath);
+                let metadataPath = path.join(instanceDir, `${imagePathObj.instanceUID}.metadata.json`);
+                if (await fileExist(metadataPath)) {
+                    let metadataJsonStr = fs.readFileSync(metadataPath, { encoding: "utf-8" });
+                    let metadataJson = JSON.parse(metadataJsonStr);
+                    wadoService.addHostnameOfBulkDataUrl(metadataJson, req);
+                    responseMetadata.push(metadataJson);
+                }
+            }
+            res.writeHead(200, {
+                "Content-Type": "application/dicom+json"
+            });
+            return res.end(JSON.stringify(responseMetadata));
+        }
+        res.writeHead(404);
+        return res.end(JSON.stringify(
+            errorResponse.getNotFoundErrorMessage(
+                `Not found metadata of study UID: ${req.params.studyUID}`
+            )
+        ));
+    } catch(e) {
+        let errorStr = JSON.stringify(e, Object.getOwnPropertyNames(e));
+        console.error(errorStr);
+        res.writeHead(500, {
+            "Content-Type": "application/dicom+json"
+        });
+        return res.end();
+    }
+};

api/dicom-web/index.js

@@ -247,6 +247,10 @@ app.get(
     "/studies/:studyUID/metadata",
     require("./controller/WADO-RS/retrieveStudyMetadata")
 );
+app.get(
+    "/studies/:studyUID/series/:seriesUID/metadata",
+    require("./controller/WADO-RS/retrieveSeriesMetadata")
+);
 
 //#endregion