adding azure sql samples

Adding the samples content from extending the getting started website for azure specific workflows
2025-12-08 14:58:54 +00:00 · 2020-09-15 12:20:56 -07:00
parent 38d2067b56
commit 50468c14d3
79 changed files with 5434 additions and 0 deletions
@@ -0,0 +1,193 @@
+var Connection = require('tedious').Connection;
+var Request = require('tedious').Request;
+var TYPES = require('tedious').TYPES;
+var async = require('async');
+const KeyVaultSecrets = require("@azure/keyvault-secrets");
+const Identity = require("@azure/identity");
+
+var pwd;
+var connection;
+
+async function GetSecret(){
+	console.log("Getting secret...");
+  	// DefaultAzureCredential expects the following three environment variables:
+  	// - AZURE_TENANT_ID: The tenant ID in Azure Active Directory
+  	// - AZURE_CLIENT_ID: The application (client) ID registered in the AAD tenant
+  	// - AZURE_CLIENT_SECRET: The client secret for the registered application
+  	const credential = new Identity.DefaultAzureCredential();
+
+	console.log("got default cred");
+
+	const vaultName = process.env["KEY_VAULT_NAME"] || "your_keyvault_name";
+  	const url = `https://${vaultName}.vault.azure.net`;
+
+	const client = new KeyVaultSecrets.SecretClient(url, credential);
+
+	try {
+	secret = await client.getSecret('AppSecret').then((secret) => {
+		pwd = secret.value
+		});
+	}
+	catch (error) {
+		console.log("Error connecting to key vault: " + error);
+	}
+}
+
+async function GetConnection(){
+	
+	// Create connection to database
+	var config = {
+  		server: 'your_server.database.windows.net',	// update me
+	  	authentication: {
+	      		type: 'default',
+	      		options: {
+        	  		userName: 'your_user', 		// update me
+	          		password: pwd			// fetched from key vault
+      			}
+  		},
+	 	options: {
+	 	   	database: 'your_database',		// update me
+			trustServerCertificate: true,
+			encrypt: true
+  		}
+	}
+	connection = new Connection(config);
+	await connection.connect();
+	console.log("Connected");
+	
+}
+
+function Start(callback) {
+    console.log('Starting...');
+    callback(null, 'Jake', 'United States');
+}
+
+function Insert(name, location, callback) {
+    console.log("Inserting '" + name + "' into Table...");
+
+    request = new Request(
+        'INSERT INTO TestSchema.Employees (Name, Location) OUTPUT INSERTED.Id VALUES (@Name, @Location);',
+        function(err, rowCount, rows) {
+        if (err) {
+            callback(err);
+        } else {
+            console.log(rowCount + ' row(s) inserted');
+            callback(null, 'Nikita', 'United States');
+        }
+        });
+    request.addParameter('Name', TYPES.NVarChar, name);
+    request.addParameter('Location', TYPES.NVarChar, location);
+
+    // Execute SQL statement
+    connection.execSql(request);
+}
+
+function Update(name, location, callback) {
+    console.log("Updating Location to '" + location + "' for '" + name + "'...");
+
+    // Update the employee record requested
+    request = new Request(
+    'UPDATE TestSchema.Employees SET Location=@Location WHERE Name = @Name;',
+    function(err, rowCount, rows) {
+        if (err) {
+        callback(err);
+        } else {
+        console.log(rowCount + ' row(s) updated');
+        callback(null, 'Jared');
+        }
+    });
+    request.addParameter('Name', TYPES.NVarChar, name);
+    request.addParameter('Location', TYPES.NVarChar, location);
+
+    // Execute SQL statement
+    connection.execSql(request);
+}
+
+function Delete(name, callback) {
+    console.log("Deleting '" + name + "' from Table...");
+
+    // Delete the employee record requested
+    request = new Request(
+        'DELETE FROM TestSchema.Employees WHERE Name = @Name;',
+        function(err, rowCount, rows) {
+        if (err) {
+            callback(err);
+        } else {
+            console.log(rowCount + ' row(s) deleted');
+            callback(null);
+        }
+        });
+    request.addParameter('Name', TYPES.NVarChar, name);
+
+    // Execute SQL statement
+    connection.execSql(request);
+}
+
+function Read(callback) {
+    console.log('Reading rows from the Table...');
+
+    // Read all rows from table
+    request = new Request(
+    'SELECT Id, Name, Location FROM TestSchema.Employees;',
+    function(err, rowCount, rows) {
+    if (err) {
+        callback(err);
+    } else {
+        console.log(rowCount + ' row(s) returned');
+        callback(null);
+    }
+    });
+
+    // Print the rows read
+    var result = "";
+    request.on('row', function(columns) {
+        columns.forEach(function(column) {
+            if (column.value === null) {
+                console.log('NULL');
+            } else {
+                result += column.value + " ";
+            }
+        });
+        console.log(result);
+        result = "";
+    });
+
+    // Execute SQL statement
+    connection.execSql(request);
+}
+
+function Complete(err, result) {
+    if (err) {
+       throw err;
+    } else {
+        console.log("Done!");
+    }
+}
+
+
+async function Main() {
+
+// Attempt to connect and execute queries if connection goes through
+  console.log('Starting');
+
+  await GetSecret();
+  await GetConnection();
+
+  connection.on('connect', function(err) {
+    if (err) {
+     console.log(err);
+    } else {
+      console.log('Connected');
+
+    // Execute all functions in the array serially
+    async.waterfall([
+	Start,
+        Insert,
+        Update,
+        Delete,
+        Read
+    ], Complete);
+   }});
+}
+
+Main();