add cors + add token full access option

Author: agusibrahim

package-lock.json

@@ -13,6 +13,7 @@
     "@aps_sdk/authentication": "1.0.0-beta.3",
     "@aps_sdk/model-derivative": "1.0.0-beta.3",
     "@aps_sdk/oss": "1.0.0-beta.2",
+    "cors": "^2.8.5",
     "dotenv": "^16.4.1",
     "express": "^4.18.2",
     "express-formidable": "^1.2.0"

package.json

@@ -1,5 +1,5 @@
 const express = require('express');
-const { getViewerToken } = require('../services/aps.js');
+const { getViewerToken,getFullAccessToken } = require('../services/aps.js');
 
 let router = express.Router();
 
@@ -10,5 +10,12 @@ router.get('/api/auth/token', async function (req, res, next) {
         next(err);
     }
 });
+router.get('/api/auth/full_token', async function (req, res, next) {
+    try {
+        res.json(await getFullAccessToken());
+    } catch (err) {
+        next(err);
+    }
+});
 
 module.exports = router;

routes/auth.js

@@ -1,6 +1,6 @@
 const express = require('express');
 const formidable = require('express-formidable');
-const { listObjects, uploadObject, translateObject, getManifest, urnify,getFileUrlByUrn,uploadObjectFromBase64 } = require('../services/aps.js');
+const { listObjects, uploadObject, translateObject, getManifest, urnify,getFileUrlByUrn,uploadObjectFromBase64,getThumbnailByUrn } = require('../services/aps.js');
 
 let router = express.Router();
 
@@ -90,5 +90,26 @@ router.get('/api/models/:urn/detail', async function (req, res, next) {
         next(err);
     }
 });
+router.get('/api/models/:urn/thumbnail', async function (req, res, next) {
+    try {
+        const urn = req.params.urn;
+
+        // Call the APS service function to get the thumbnail
+        const thumbnail = await getThumbnailByUrn(urn);
+
+        // Send the thumbnail buffer as an image response
+        res.set('Content-Type', 'image/png');
+        res.send(thumbnail);
+    } catch (err) {
+        console.error('Error fetching thumbnail:', err.message);
+
+        // Handle specific errors
+        if (err.message.includes('Thumbnail not found')) {
+            return res.status(404).json({ error: 'Thumbnail not found for the given URN' });
+        }
+
+        next(err);
+    }
+});
 
 module.exports = router;

routes/models.js

@@ -1,7 +1,9 @@
 const express = require('express');
+const cors = require('cors')
 const { PORT } = require('./config.js');
 
 let app = express();
+app.use(cors())
 app.use(express.json({ limit: '50mb' }));
 app.use(express.static('wwwroot'));
 app.use(require('./routes/auth.js'));

server.js

@@ -23,6 +23,15 @@ async function getInternalToken() {
 service.getViewerToken = async () => {
     return await authenticationClient.getTwoLeggedToken(APS_CLIENT_ID, APS_CLIENT_SECRET, [Scopes.ViewablesRead]);
 };
+service.getFullAccessToken = async () => {
+    return await authenticationClient.getTwoLeggedToken(APS_CLIENT_ID, APS_CLIENT_SECRET, [
+        Scopes.DataRead,
+        Scopes.DataCreate,
+        Scopes.DataWrite,
+        Scopes.BucketCreate,
+        Scopes.BucketRead
+    ]);
+};
 
 service.ensureBucketExists = async (bucketKey) => {
     const accessToken = await getInternalToken();
@@ -149,5 +158,22 @@ service.getFileUrlByUrn = async (urn) => {
         throw err;
     }
 };
+service.getThumbnailByUrn = async (urn) => {
+    const accessToken = await getInternalToken();
+
+    try {
+        // Fetch the thumbnail using ModelDerivativeClient
+        const response = await modelDerivativeClient.getThumbnail(urn, { accessToken,width:500,height:500 });
+        console.log(`-->${response}<--`)
+        // Return the thumbnail as a buffer
+        return response; // Buffer of the thumbnail
+    } catch (err) {
+        console.error('Error fetching thumbnail:', err.message);
+        if (err.axiosError && err.axiosError.response.status === 404) {
+            throw new Error('Thumbnail not found for the given URN');
+        }
+        throw err;
+    }
+};
 
 service.urnify = (id) => Buffer.from(id).toString('base64').replace(/=/g, '');