Loop callback in async.waterfall node js - node.js

Question

I want to execute the callback in the else of my each loop. In my console i have the "Found" written but the callback isn't executed ...
async.waterfall([
function readFile(callback){
console.log("Start async");
var params = {Bucket : "MyBucket", Key: "MyKey"};
reads3.getObject(params, function extract(err,data) {
//read a json object
console.log("Start reading");
callback(err,data);
});
},
function(data, callback){
var content = data.Body.toString('utf-8').trim();
var jsonparse = JSON.parse(content);
async.each(config, function(item) {
var currentPath = item.path;
if((key.search(currentPath)) === (-1)) {
console.log("No found !");
} else {
console.log("Found");
callback(jsonparse);
}
});
},
function(jsonparse){
console.log("In the 2nd loop !");
}
]);

Answer 1

can you try this
async.waterfall([
function readFile(callback){
console.log("Start async");
var params = {Bucket : "MyBucket", Key: "MyKey"};
reads3.getObject(params, function extract(err,data) {
//read a json object
console.log("Start reading");
callback(err,data);
});
},
function(data, callback){
var content = data.Body.toString('utf-8').trim();
var jsonparse = JSON.parse(content);
async.each(config, function(item) {
var currentPath = item.path;
if((key.search(currentPath)) === (-1)) {
console.log("No found !");
} else {
console.log("Found");
callback(null,jsonparse);
}
});
},
function(jsonparse,callback){
console.log("In the 2nd loop !");
callback(null,'result');
}
],function(err,data){
//your data is result
//......Your function script
});