Create Nested Structure with Arrays

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Nicky Parekh
Nicky Parekh on 26 Oct 2020
Answered: Ankriti Sachan on 29 Oct 2020
Hi,
I need to query an API that needs a file in JSON format (format below). I am having trouble using jsonencode to get to this format. I have three arrays (Nx1), fieldnames (eg. ["Request1";"Request2";...]), Method (eg.["GET";"GET;"GET"...]), and Resource (eg. [Custom1URL; Custom2URL,...]). How can I create a structure so that the format is struct.WebId1.Method, struct.WebId2.Method? I know I can do this using struct() but I need to automate it since eventually there can be >1000 requests. Thank you!
{
"Request1":
{
"Method":"GET",
"Resource":"URL"
},
"Request2":
{
(same format)
}
etc...
}

Answers (1)

Ankriti Sachan
Ankriti Sachan on 29 Oct 2020
Based on my understanding, you want to create a nested structure using the 3 arrays available to you.
I have created a small script to do the same. Please refer below:
req = ["Request1";"Request2"];
met = ["GET";"GET"];
res = ["URL1";"URL2"];
for i=1:length(req)
myValue = struct("Method", met{i}, "Resource", res{i});
myFieldname = req{i};
myStruct.(myFieldname) = myValue;
end
Here, you have a nested structure named 'myStruct.'
Structure "Request1" can be accessed using "myStruct.Request1." Its values can be accessed using "myStruct.Request1.Method," etc.

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