HttpRequest Allow callable params

pypeman/contrib/http.py

@@ -145,6 +145,7 @@ class HttpRequest(nodes.BaseNode):
         :param verify: verify ssl. Default True.
         :param params: get params in dict. List for multiple elements, ex :
                        {'param1': 'omega', param2: ['alpha', 'beta']}
+                       The key can be a function that takes a msg as input param
         :param client_cert: tuple with .crt and .key path
         :param binary: bool, Get response content as bytes
         :param send_as_json: bool, If the method is a PATCH/POST/PUT, send data as json
@@ -220,8 +221,11 @@ async def handle_request(self, msg):
 
         get_params = None
         if params:
+            params = params.copy()
             get_params = []
             for key, param in params.items():
+                if callable(param):
+                    param = param(msg)
                 if isinstance(param, list):
                     for value in param:
                         get_params.append((key, value))

pypeman/tests/test_nodes.py

@@ -438,12 +438,11 @@ def test_httprequest_node(self):
                 ('zeta', 'un'),
                 ('zeta', 'deux'),
                 ('zeta', 'trois'),
-                # ('omega', 'meta_params')
                 ]
         req_kwargs2['data'] = content1
 
         args_headers = {'args_headers': 'args_headers'}
-        args_params = {'theta': ['uno', 'dos']}
+        args_params = {'theta': ['uno', 'dos'], 'omega': tstfct2}
         http_node2 = nodes.HttpRequest(
             url=url,
             method='post',
@@ -474,6 +473,7 @@ def test_httprequest_node(self):
         req_kwargs3['params'] = [
                 ('theta', 'uno'),
                 ('theta', 'dos'),
+                ('omega', 'fctname'),
                 ]
         req_kwargs3['headers'] = args_headers
         req_kwargs3['data'] = content1
@@ -524,7 +524,7 @@ def test_httprequest_node(self):
                 Test 3:
                 - post in node args,
                 - object BasicAuth for auth,
-                - list in dict params from args,
+                - list in dict params from args + callable str param,
                 - headers from args
                 - client_cert
             """