CSV Gen + Service Using SQLite Only

.vscode/launch.json

@@ -1,7 +1,4 @@
 {
-  // Use IntelliSense to learn about possible attributes.
-  // Hover to view descriptions of existing attributes.
-  // For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
   "version": "0.2.0",
   "configurations": [
     {
@@ -18,6 +15,13 @@
       "skipFiles": [
         "<node_internals>/**"
       ]
+    },
+    {
+      "type": "node-terminal",
+      "name": "Run CSV Generator",
+      "request": "launch",
+      "command": "npm run csv-gen",
+      "cwd": "${workspaceFolder}"
     }
   ]
-}
+}

README.md

@@ -2,14 +2,23 @@
 
 A simple demo project to demonstrate how to incorporate media in a CAP App
 
-This was copied from the [CAP Cloud Samples](https://github.com/SAP-samples/cloud-cap-samples/tree/main/media)
+This was copied and modified from the [CAP Cloud Samples](https://github.com/SAP-samples/cloud-cap-samples/tree/main/media)
 
 
 ## Running the project
 - Open a new terminal and run `cds watch` 
-
+- Test Data CSV has already been created 
 
 ## Running the Test Cases (.http files)
 Requires REST Client for VS Code [humao.rest-client](https://marketplace.visualstudio.com/items?itemName=humao.rest-client)
 
+ ![Media Content from Service](/images/Image3.png)
+
+
+## Running the CSV generator
+- Open a terminal and run `npm run csv-gen`
+- This script will read the contents of the `test` directory looking for `.png` image files
+- It will then replace the contents of `test\data\sap.capire.media-Media.csv` with details of the files loaded from the `test` directory including the base 64 encoded content
+
+**Note will not run unless you run `npm install` in the `csv-generator` directory**
 

csv-generator/generator.js

@@ -0,0 +1,67 @@
+const path = require('path');
+const fs = require('fs');
+const { readFile } = require('node:fs/promises');
+const mime = require('mime');
+const stringify = require('csv-stringify');
+
+const testDataPath = '../test';
+const directoryPath = path.join(__dirname, testDataPath);
+console.log("Reading files from: " + directoryPath);
+
+const  generateCSV = async ()  =>  {
+fs.readdir(directoryPath, async (err, files) =>  {
+    let csvData = [];
+    let id = 0;  // Default to 0
+
+    if (err) {
+        return console.log('Unable to scan directory: ' + err);
+    } 
+
+    // Keep only png files
+    files = files.filter((file) => file.endsWith(".png") );
+
+    // Add Header line to CSV 
+    csvData.push(["id","content","mediaType","fileName","applicationName" ]);
+
+
+
+    console.log("Found the following files: "); 
+    for (let i = 0; i < files.length; i++) {
+        let fileName = files[i];
+        id++;
+        let filePath = path.join(directoryPath, fileName);
+        let mimeType = mime.getType(filePath);
+        console.log(filePath + " " + mimeType ); 
+
+        let contents = await readFile(filePath);
+        let contentBase64 = contents.toString('base64');
+
+        // Add header line
+        csvData.push([id, contentBase64, mimeType, fileName,"demo content" ]);
+    };
+
+
+    // Convert file to CSV and write test file
+    stringify.stringify(csvData, (err, output) => {
+        if (err) {
+          console.error('Error:', err);
+          return;
+        }
+
+        // Specify the file path where you want to save the CSV
+        let filePath = path.join(directoryPath, './data/sap.capire.media-Media.csv');
+
+        // Write the CSV to a local file
+        fs.writeFile(filePath, output, (err) => {
+          if (err) {
+            console.error('Error writing to file:', err);
+          } else {
+            console.log(`CSV saved to ${filePath}`);
+          }
+        });
+      });
+
+});
+}
+
+generateCSV();

csv-generator/package.json

@@ -0,0 +1,16 @@
+{
+    "name": "cap-media-csv-generator",
+    "version": "1.0.0",
+    "description": "A simple CAP project.",
+    "repository": "https://github.com/katansapdevelop/cap-media-demo",
+    "license": "UNLICENSED",
+    "private": true,
+    "dependencies": {
+      "csv-stringify": "^6.4.4",
+      "mime": "^3.0.0"
+    },
+    "scripts": {
+      "csv-gen": "node generator.js"
+    }
+  }
+

db/schema.cds

@@ -2,12 +2,9 @@ namespace sap.capire.media;
 
 entity Media {
 
-   key id:Integer;
-   @Core.MediaType: mediaType
-   content : LargeBinary ;
-
-   @Core.IsMediaType: true
-   mediaType : String;
-   fileName : String;
-   applicationName:String;
-}
+   key id              : Integer;
+       content         : LargeBinary @Core.MediaType  : mediaType;
+       mediaType       : String      @Core.IsMediaType: true;
+       fileName        : String;
+       applicationName : String;
+}

package.json

@@ -1,14 +1,13 @@
 {
   "name": "cap-media-demo",
   "version": "1.0.0",
-  "description": "A simple CAP project.",
-  "repository": "<Add your repository here>",
+  "description": "A simple CAP project to demonstarte media loaded via CSV",
+  "repository": "https://github.com/katansapdevelop/cap-media-demo",
   "license": "UNLICENSED",
   "private": true,
   "dependencies": {
     "@sap/cds": "^7",
-    "express": "^4",
-    "lokijs": "^1.5.12"
+    "express": "^4"
   },
   "files": [
     "db",
@@ -19,6 +18,7 @@
     "@cap-js/sqlite": "^1"
   },
   "scripts": {
-    "start": "cds-serve"
+    "start": "cds-serve",
+    "csv-gen": "node ./csv-generator/generator.js"
   }
 }

test/media.http

@@ -15,12 +15,12 @@ Accept: application/json
 Content-Type: application/json
 
 { 
-  "id": 1,
+  "id": 4,
   "mediaType": "image/png" 
 }
 
 ### Upload Binary PNG
-PUT {{protocol}}://{{host}}:{{port}}/odata/v4/media-server/Media(1)/content
+PUT {{protocol}}://{{host}}:{{port}}/odata/v4/media-server/Media(4)/content
 Authorization: Basic admin:
 Content-Type: image/png
 
@@ -30,6 +30,11 @@ Content-Type: image/png
 GET {{protocol}}://{{host}}:{{port}}/odata/v4/media-server/Media(1)/content
 Authorization: Basic admin:
 
+
+### Read Binary 2
+GET {{protocol}}://{{host}}:{{port}}/odata/v4/media-server/Media(2)/content
+Authorization: Basic admin:
+
 ### Delete Image
 DELETE {{protocol}}://{{host}}:{{port}}/odata/v4/media-server/Media(1)
 Authorization: Basic admin: