How to check Collections.insert() is Successfully Inserted or not in Meteor?

Question

How to check(user created collections) Collections.insert() is Successfully Inserted or not in Meteor JS?. For example I am using the Client Collections to insert details as shown below:

Client.insert({ name: "xyz", userid: "1", care:"health" });

How to know the above insert query is successfully inserted or not?. Because of the below problem

 If the form details are successfully inserted  - do one action
  else -another action

So Please suggest me what to do?

Answer 1

Insert provides a server response in the arguments to a callback function. It provides two arguments 'error' and 'result' but one of them will always be null depending on whether the insert is successful.

Client.insert( { name: "xyz", userid: "1", care:"health" }
  , function( error, result) { 
    if ( error ) console.log ( error ); //info about what went wrong
    if ( result ) console.log ( result ); //the _id of new object if successful
  }
);

See documentation for more info.

Answer 2

In addition to user728291's answer that uses a callback, on the server, you can also do:

var value = Collection.insert({foo: bar});

which will return the _id of the inserted record on success (executions is blocked until the db acknowledges the write). You will have to handle a possible error in a try...catch, but sometimes callbacks are just a bit, cumbersome :)

So this should also work on the server:

try {
    var inserted = Collection.insert({foo: bar});
} 
catch (error) {
    console.log("Could not insert due to " + error);
}

if (inserted)
    console.log("The inserted record has _id: " + inserted);

Thank you @user728291 for the clarification.