Adding the PostgreSQL example

Author: Mike Kari Anderson

examples/postgres/.gitignore

@@ -0,0 +1,59 @@
+# Logs
+logs
+*.log
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+
+# Runtime data
+pids
+*.pid
+*.seed
+*.pid.lock
+
+# Directory for instrumented libs generated by jscoverage/JSCover
+lib-cov
+
+# Coverage directory used by tools like istanbul
+coverage
+
+# nyc test coverage
+.nyc_output
+
+# Grunt intermediate storage (http://gruntjs.com/creating-plugins#storing-task-files)
+.grunt
+
+# Bower dependency directory (https://bower.io/)
+bower_components
+
+# node-waf configuration
+.lock-wscript
+
+# Compiled binary addons (http://nodejs.org/api/addons.html)
+build/Release
+
+# Dependency directories
+node_modules/
+jspm_packages/
+
+# Typescript v1 declaration files
+typings/
+
+# Optional npm cache directory
+.npm
+
+# Optional eslint cache
+.eslintcache
+
+# Optional REPL history
+.node_repl_history
+
+# Output of 'npm pack'
+*.tgz
+
+# Yarn Integrity file
+.yarn-integrity
+
+# dotenv environment variables file
+.env
+

examples/postgres/index.js

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+var Database = require('database-js2').Connection;
+
+(async function main(){
+    let connection = new Database("database-js-postgres://user:password@localhost/test");
+    let statement, results;
+
+    try {
+        statement = await connection.prepareStatement("SELECT * FROM states WHERE name = ?");
+        results = await statement.query('South Dakota');
+        console.log(results);
+    } catch (err) {
+        console.log(err);
+    } finally {
+        connection.close();
+    }
+})();

examples/postgres/package-lock.json

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+{
+  "name": "postgres",
+  "version": "1.0.0",
+  "description": "Example Postgres for database-js",
+  "main": "index.js",
+  "scripts": {
+    "test": "node index.js"
+  },
+  "author": "Michael Anderson",
+  "license": "MIT",
+  "dependencies": {
+    "database-js-postgres": "^1.0.0",
+    "database-js2": "^0.2.0"
+  }
+}

examples/postgres/package.json

@@ -24,6 +24,7 @@
     "database-js-firebase": "^1.0.0",
     "database-js-ini": "git+https://github.com/mlaanderson/database-js-ini.git",
     "database-js-mysql": "^1.0.0",
+    "database-js-postgres": "^1.0.0",
     "database-js-sqlite": "^1.0.3"
   }
 }