How to use await/async properly in Nodejs Azure Function App - node.js

Question

I am trying to write a code to connect with snowflake inside the azure function app using nodejs stack. Here is the code I have writtern.
async function af2snf()
{
console.log("starting connection");
var snowflake = require('snowflake-sdk');
// Create a Connection object that we can use later to connect.
console.log("prep conn");
var connection = snowflake.createConnection( {
account: "myaccountname",
username: "myusername",
password: "mypass",
database: "dbname",
schema: "schemaname"
}
);
console.log("making connection");
var conn_id = connection.connect(
function(err, conn) {
if (err) {
console.error('Unable to connect: ' + err.message);
}
else {
console.log('Successfully connected to Snowflake.');
// Optional: store the connection ID.
connection_ID = conn.getId();
}
}
)
return conn_id.getId();
}
console.log("outside fucntion");
console.log(af2snf());
console.log("executed fucntion");
The output I am getting is :
outside fucntion
starting connection
prep conn
making conn
Promise { <pending> }
executed fucntion
Successfully connected to Snowflake.
But What I need is :
outside fucntion
starting connection
prep conn
making conn
Successfully connected to Snowflake.
Promise { <pending> }
executed fucntion
I am very new to nodejs. Please help me out on this

Answer 1

af2nsf needs to return a promise :
async function af2snf() {
return new Promise((resolve,reject)=>{
console.log("starting connection");
var snowflake = require('snowflake-sdk');
// Create a Connection object that we can use later to connect.
console.log("prep conn");
var connection = snowflake.createConnection( {
account: "myaccountname",
username: "myusername",
password: "mypass",
database: "dbname",
schema: "schemaname"
});
console.log("making connection");
connection.connect( async function(err, conn) {
if (err) {
console.error('Unable to connect: ' + err.message);
return reject(err);
}
else {
console.log('Successfully connected to Snowflake.');
// Optional: store the connection ID.
var conn_id = await conn.getId();
return resolve(conn_id);
}
})
});
}
console.log("outside fucntion");
af2snf().then(conn_id=>{
console.log(conn_id);
console.log("executed fucntion");
}).catch(err=>{
console.error(err);
});