logic apps dictionary variables - azure-logic-apps

Question

I think I want to use a dictionary variable in my logic apps. The contains function seems useful to me, especially if my collection is a dictionary.  I can't see how to Initialize a variable as a dictionary, though. Have any of you done anything like that?
More specifically,
I get a collection of objects from an API like: 
[
{
"Name": "Mr. Test Smith",
"Type": "ACCOUNTSPAYABLE"
},
{
"Name": "Mr. Test Smith",
"Type": "DISPATCH"
},
{
"Name": "Different Name",
"Type": "ACCOUNTSPAYABLE"
}
]
I want to 'merge' them, using name as a key, to get something like this:
[
{
"Name": "Mr. Test Smith",
"Types": [
"ACCOUNTSPAYABLE",
"DISPATCH"
]
},
{
"Name": "Different Name",
"Types": [
"ACCOUNTSPAYABLE"
]
}
]

Answer 1

You can call api from http trigger or action and initialize response from api into an array variable.
Used a HTTP trigger in logic app and assigned body of api response to an array variable as shown below,
Payload of http trigger is,
{
"items": {
"properties": {
"Name": {
"type": "string"
},
"Type": {
"type": "string"
}
},
"required": [
"Name",
"Type"
],
"type": "object"
},
"type": "array"
}
The variable value will be assigned like this,
[
{
"Name": "Mr. Test Smith",
"Type": "ACCOUNTSPAYABLE"
},
{
"Name": "Mr. Test Smith",
"Type": "DISPATCH"
},
{
"Name": "Different Name",
"Type": "ACCOUNTSPAYABLE"
}
]
Once value assigned to variable, use inline action to merge objects
based on Name property as mentioned SO