Worklight call WL.Server.invokeHttp(input) in a loop - ibm-mobilefirst

Question

I am novice to Worklight.
I am trying to merge responses from multiple WL.Server.invokeHttp(input).
e.g.
call1: response1 = WL.Server.invokeHttp(input1)
lets say in response1 I get students(names) list loop for every student
call(n):
response(n) = WL.Server.invokeHttp(student) lets say response(n) I get
the score of student
Now I am trying to merge the score of every student in student list.
Adding code:
function getStudentsMarks() {
path = "/edu/students";
WL.Logger.info("path: "+path);
var input = {
method : 'get',
returnedContentType : 'json',
path : path
};
var response = WL.Server.invokeHttp(input);
var students = response.students;
for (var i = 0; i < students.length; i++) {
var student = students[i];
WL.Logger.info("student id: " + student.id);
resp = getStudentMarks("students/"+student.id);
students[i].marks = resp;
}
return response;
}
function getStudentMarks(path) {
path = "/edu/"+ path;
var input = {
method : 'get',
returnedContentType : 'json',
path : path
};
var response = WL.Server.invokeHttp(input);
return response;
}
Thanks in advance.

Answer 1

Your question is a bit too broad and does not contain any code.
Did you try anything yet?
It is important to remember that procedure code is written in JavaScript. So if you know how to do it in JavaScript, you should be able to do it in procedure code as well.
From what I understand, what you should do is create 1 adapter procedure. This procedure will have the different calls to the different HTTP backend requests. In JavaScript, write any merging logic that you need. At the end of the loop, return the processed data that you want.
Before you go deep into your example, maybe try with just 1 invocation, then try to merge 2. Once you are comfortable writing code, try your solution.
Note however that one HTTP adapter can only connect to 1 backend domain name. So if your example requires multiple domain names, your "mashup" adapter needs to call other adapters.
If all your HTTP requests point to the same domain name, then 1 adapter is enough.
I recommend reading this as well: https://www.ibm.com/developerworks/community/blogs/worklight/entry/handling_backend_responses_in_adapters