@msuman
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Tapas Adhikary , To catch test function errors gracefully, I am using catch callback but I thought then callback is not needed because I am not waiting for test function execution and also not returning anything from API call/from the test function. Note: As the request dependency does not support async/await, I had to use promise constructor.
Really Nice article !! I will take this opportunity to clear my doubts. I code as per below. const request = require ( 'request' ); const test = userData => { console .log( 'test::parameters' , userData); if (userData && userData.request === true ) { const option = { method : 'POST' , url : 'https://jsonplaceholder.typicode.com/posts' , headers : { 'Content-type' : 'application/json; charset=UTF-8' }, json : true , proxy : null , body : { title : 'foo' , body : 'bar' , userId : 1 } }; console .log( 'test::outgoingBody::' , option); return new Promise ( ( resolve, reject ) => { request(option, ( error, response ) => { if (error) { return reject(error); } else { if (response && response.body ) { return resolve(); } else { return reject( new Error ( 'Error Response' )); } } }); }); } else { return Promise .reject( new Error ( 'Invalid Userdata' )); } }; //some business logics test().catch( err => console .error(err)) //some business logics //-------------------------- //some business logics test({ request : true }).catch( err => console .error(err)) //some business logics As I am not returning anything from test function, I don't use then callback. I use Promise.reject to throw any synchronous error. Am I doing correctly?