wip

examples/scripts/postgresclient/auth_example.rhai

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+// PostgreSQL Authentication Example
+//
+// This example demonstrates how to use the PostgreSQL client module with authentication:
+// - Create a PostgreSQL configuration with authentication
+// - Connect to PostgreSQL using the configuration
+// - Perform basic operations
+//
+// Prerequisites:
+// - PostgreSQL server must be running
+// - You need to know the username and password for the PostgreSQL server
+
+// Helper function to check if PostgreSQL is available
+fn is_postgres_available() {
+    try {
+        // Try to execute a simple connection
+        let connect_result = pg_connect();
+        return connect_result;
+    } catch(err) {
+        print(`PostgreSQL connection error: ${err}`);
+        return false;
+    }
+}
+
+// Main function
+fn main() {
+    print("=== PostgreSQL Authentication Example ===");
+
+    // Check if PostgreSQL is available
+    let postgres_available = is_postgres_available();
+    if !postgres_available {
+        print("PostgreSQL server is not available. Please check your connection settings.");
+        return;
+    }
+
+    print("✓ PostgreSQL server is available");
+
+    // Step 1: Create a PostgreSQL configuration with authentication
+    print("\n1. Creating PostgreSQL configuration with authentication...");
+    
+    // Replace these values with your actual PostgreSQL credentials
+    let pg_host = "localhost";
+    let pg_port = 5432;
+    let pg_user = "postgres";
+    let pg_password = "your_password_here"; // Replace with your actual password
+    let pg_database = "postgres";
+    
+    // Create a configuration builder
+    let config = pg_config_builder();
+    
+    // Configure the connection
+    config = config.host(pg_host);
+    config = config.port(pg_port);
+    config = config.user(pg_user);
+    config = config.password(pg_password);
+    config = config.database(pg_database);
+    
+    // Build the connection string
+    let connection_string = config.build_connection_string();
+    print(`✓ Created PostgreSQL configuration with connection string: ${connection_string}`);
+    
+    // Step 2: Connect to PostgreSQL using the configuration
+    print("\n2. Connecting to PostgreSQL with authentication...");
+    
+    try {
+        let connect_result = pg_connect_with_config(config);
+        if (connect_result) {
+            print("✓ Successfully connected to PostgreSQL with authentication");
+        } else {
+            print("✗ Failed to connect to PostgreSQL with authentication");
+            return;
+        }
+    } catch(err) {
+        print(`✗ Error connecting to PostgreSQL: ${err}`);
+        return;
+    }
+    
+    // Step 3: Perform basic operations
+    print("\n3. Performing basic operations...");
+    
+    // Create a test table
+    let table_name = "auth_example_table";
+    let create_table_query = `
+        CREATE TABLE IF NOT EXISTS ${table_name} (
+            id SERIAL PRIMARY KEY,
+            name TEXT NOT NULL,
+            value INTEGER
+        )
+    `;
+    
+    try {
+        let create_result = pg_execute(create_table_query);
+        print(`✓ Successfully created table ${table_name}`);
+    } catch(err) {
+        print(`✗ Error creating table: ${err}`);
+        return;
+    }
+    
+    // Insert data
+    let insert_query = `
+        INSERT INTO ${table_name} (name, value)
+        VALUES ('test_name', 42)
+    `;
+    
+    try {
+        let insert_result = pg_execute(insert_query);
+        print(`✓ Successfully inserted data into table ${table_name}`);
+    } catch(err) {
+        print(`✗ Error inserting data: ${err}`);
+    }
+    
+    // Query data
+    let select_query = `
+        SELECT * FROM ${table_name}
+    `;
+    
+    try {
+        let select_result = pg_query(select_query);
+        print(`✓ Successfully queried data from table ${table_name}`);
+        print(`  Found ${select_result.len()} rows`);
+        
+        // Display the results
+        for row in select_result {
+            print(`  Row: id=${row.id}, name=${row.name}, value=${row.value}`);
+        }
+    } catch(err) {
+        print(`✗ Error querying data: ${err}`);
+    }
+    
+    // Clean up
+    let drop_query = `
+        DROP TABLE IF EXISTS ${table_name}
+    `;
+    
+    try {
+        let drop_result = pg_execute(drop_query);
+        print(`✓ Successfully dropped table ${table_name}`);
+    } catch(err) {
+        print(`✗ Error dropping table: ${err}`);
+    }
+    
+    print("\nExample completed successfully!");
+}
+
+// Run the main function
+main();