Generate AWS signature to call API Gateway end point

generateAPIGatewaySignatureManually.js

var aws4 = require('aws4');
var signature = aws4.sign({
    host: '',
    method: 'GET',
    path: '/development/hello',
    headers: {
        'x-apigw-api-id': ''
    },
    region: 'ap-southeast-2',
    service: 'execute-api'
}, {
    secretAccessKey: "",
    accessKeyId: "",
    sessionToken: ""
});
console.log('signature: ', signature);