Is there anyway we can call to previous method in async.waterfall from a below method.
async.waterfall([
function (callback) {
},
function (reservationStatus, callback) {
},
function (reservationStatusList, frontOfficeStatusList, callback) {
callToPreviosFunction();
}
], function (err, result) {
res.json(result);
});
yes We can call the previous function in async.waterfall. Please look the below modified code.
var async = require('async');
async.waterfall([
a,b,c
], function (err, result) {
console.log(err);
console.log(result);
});
function a(callback) {
console.log("function 1");
callback(null,"true");
};
function b(reservationStatus, callback) {
console.log("function 2");
callback(null,"true","true");
};
function c(reservationStatusList, frontOfficeStatusList, callback) {
console.log("function 3");
b("confirmed",function(err,result){
if(err){
callback(err,null);
}else{
callback(null,result);
}
});
};
As you can see in the above modified code of b() is again called in c().
Output:
function 1
function 2
function 3
function 2
Return this from the current function to the next function. It should work
