Enhancement: Option to allow to access all the methods dynamically

[gitphoex]

Hi,

I was looking for a tool to execute collection in parallel. Though this can be achieved by writing script using newman (from postman), it needs nmp setup in my machine. Since, I don't use NPM I was looking a simpler approach and found this project. Now, the only problem here is I have to write method names in my code that is too much of coding.

Below enhancements will be beneficial for users:

1. Option to access the methods in list format and then execute the same. e.g.:

   # ===============================================================
   # Get filtered the collection Items and requests 
   # ===============================================================
   
   runner = PostPython('/path/to/collection/postman_collection.json')
   collection_items = runner.get_collecdtion_items()
   for collection_item in collection_items:
       requests = collection_item.get_requests()
       for request in requests:
           response = request()
   
   # ===============================================================
   # Get filtered the collection Items and requests                         
   # ===============================================================
   runner = PostPython('/path/to/collection/postman_collection.json')
   
   # collection items containing certain string
   collection_items = runner.get_collecdtion_items("*foo*")
   for collection_item in collection_items:
       # requests starting with certain string
       requests = collection_item.get_requests("bar*")
       for request in requests:
           response = request()

2. Option to execute the methods by its name e.g.:

   
   runner = PostPython('/path/to/collection/postman_collection.json')
   response = runner.execute_reqeust("CollectionItem.get_request")

3. Option to execute the whole collection (with filter)
    e.g.: 

runner = PostPython('/path/to/collection/postman_collection.json')
responses = runner.execute_collection(filter="*foo_bar*" , parallel=true)
for response in responses:
   print(response.json())
   print(response.status_code)

3. Option to execute the whole collection (with filter)
    e.g.: 

runner = PostPython('/path/to/collection/postman_collection.json')
responses = runner.execute_collection(filter="*foo_bar*" , parallel=true)
for response in responses:
   print(response.json())
   print(response.status_code)

This will be helpful in case of collection with lots of requests.