Added Lambda invoke capability.

moto/awslambda/models.py

@@ -3,6 +3,7 @@ from __future__ import unicode_literals
 import base64
 import datetime
 import hashlib
+import json
 
 import boto.awslambda
 from moto.core import BaseBackend
@@ -92,6 +93,18 @@ class LambdaFunction(object):
             "Configuration": self.get_configuration(),
         }
 
+    def invoke(self, request, headers):
+        payload = dict()
+
+        # Get the invocation type:
+        if request.headers.get("x-amz-invocation-type") == "RequestResponse":
+            encoded = base64.b64encode("Some log file output...".encode('utf-8'))
+            headers["x-amz-log-result"] = encoded.decode('utf-8')
+
+            payload["result"] = "Good"
+
+        return json.dumps(payload, indent=4)
+
     @classmethod
     def create_from_cloudformation_json(cls, resource_name, cloudformation_json, region_name):
         properties = cloudformation_json['Properties']

moto/awslambda/responses.py

@@ -28,6 +28,25 @@ class LambdaResponse(BaseResponse):
         else:
             raise ValueError("Cannot handle request")
 
+    @classmethod
+    def invoke(cls, request, full_url, headers):
+        if request.method == 'POST':
+            return cls()._invoke(request, full_url, headers)
+        else:
+            raise ValueError("Cannot handle request")
+
+    def _invoke(self, request, full_url, headers):
+        lambda_backend = self.get_lambda_backend(full_url)
+
+        function_name = request.path.split('/')[-2]
+
+        if lambda_backend.has_function(function_name):
+            fn = lambda_backend.get_function(function_name)
+            payload = fn.invoke(request, headers)
+            return 200, headers, payload
+        else:
+            return 404, headers, "{}"
+
     def _list_functions(self, request, full_url, headers):
         lambda_backend = self.get_lambda_backend(full_url)
         return 200, headers, json.dumps({

moto/awslambda/urls.py

@@ -9,4 +9,5 @@ url_paths = {
     # double curly braces because the `format()` method is called on the strings
     '{0}/\d{{4}}-\d{{2}}-\d{{2}}/functions/?$': LambdaResponse.root,
     '{0}/\d{{4}}-\d{{2}}-\d{{2}}/functions/(?P<function_name>[\w_-]+)/?$': LambdaResponse.function,
+    '{0}/\d{{4}}-\d{{2}}-\d{{2}}/functions/(?P<function_name>[\w_-]+)/invocations?$': LambdaResponse.invoke,
 }