Update examples in README and put http template first

Signed-off-by: Alex Ellis (OpenFaaS Ltd) <alexellis2@gmail.com>

Author: alexellis

README.md

@@ -29,86 +29,28 @@ Are you referencing pip modules which require a native build toolchain? It's adv
 
 ## Downloading the templates
 
-Using template pull:
+Using template pull with the repository's URL:
 
 ```bash
-faas template pull https://github.com/openfaas-incubator/python-flask-template
+faas-cli template pull https://github.com/openfaas-incubator/python-flask-template
 ```
 
-Using template store:
+Using the template store:
 
 ```bash
-faas template store pull python3-flask
-```
-
-# Using the python3-flask template
-
-Create a new function
-
-```
-export OPENFAAS_PREFIX=alexellis2
-export FN="tester"
-faas new --lang python3-flask $FN
-```
-
-Build, push, and deploy
-
-```
-faas up -f $FN.yml
-```
-
-Test the new function
-
-```
-echo -n content | faas invoke $FN
-```
-
-## Example of returning a string
-
-```python
-def handle(req):
-    """handle a request to the function
-    Args:
-        req (str): request body
-    """
-
-    return "Hi" + str(req)
-```
-
-## Example of returning a custom HTTP code
-
-```python
-def handle(req):
-    return "request accepted", 201
-```
+# Either command downloads both templates
+faas-cli template store pull python3-http
 
-## Example of returning a custom HTTP code and content-type
-
-```python
-def handle(req):
-    return "request accepted", 201, {"Content-Type":"binary/octet-stream"}
+# Or
+faas-cli template store pull python3-flask
 ```
 
-## Example of accepting raw bytes in the request
-
-Update stack.yml:
+Using your `stack.yml` file:
 
 ```yaml
-    environment:
-      RAW_BODY: True
-```
-
-> Note: the value for `RAW_BODY` is case-sensitive.
-
-```python
-def handle(req):
-    """handle a request to the function
-    Args:
-        req (str): request body
-    """
-
-    # req is bytes, so an input of "hello" returns i.e. b'hello'
-    return str(req)
+configuration:
+    templates:
+        - name: python3-http
 ```
 
 # Using the python3-http templates
@@ -118,19 +60,19 @@ Create a new function
 ```
 export OPENFAAS_PREFIX=alexellis2
 export FN="tester"
-faas new --lang python3-http $FN
+faas-cli new --lang python3-http $FN
 ```
 
 Build, push, and deploy
 
 ```
-faas up -f $FN.yml
+faas-cli up -f $FN.yml
 ```
 
 Test the new function
 
 ```
-echo -n content | faas invoke $FN
+echo -n content | faas-cli invoke $FN
 ```
 
 ## Event and Context Data
@@ -155,6 +97,19 @@ For example, returning a dict object type will automatically attach the header `
 
 ## Example usage
 
+### Return a JSON body with a Content-Type
+
+```python
+def handle(event, context):
+    return {
+        "statusCode": 200,
+        "body": {"message": "Hello from OpenFaaS!"},
+        "headers": {
+            "Content-Type": "application/json"
+        }
+    }
+```
+
 ### Custom status codes and response bodies
 
 Successful response status code and JSON response body
@@ -243,6 +198,76 @@ def handle(event, context):
     }
 ```
 
+# Using the python3-flask template
+
+Create a new function
+
+```
+export OPENFAAS_PREFIX=alexellis2
+export FN="tester"
+faas-cli new --lang python3-flask $FN
+```
+
+Build, push, and deploy
+
+```
+faas-cli up -f $FN.yml
+```
+
+Test the new function
+
+```
+echo -n content | faas-cli invoke $FN
+```
+
+## Example of returning a string
+
+```python
+def handle(req):
+    """handle a request to the function
+    Args:
+        req (str): request body
+    """
+
+    return "Hi" + str(req)
+```
+
+## Example of returning a custom HTTP code
+
+```python
+def handle(req):
+    return "request accepted", 201
+```
+
+## Example of returning a custom HTTP code and content-type
+
+```python
+def handle(req):
+    return "request accepted", 201, {"Content-Type":"binary/octet-stream"}
+```
+
+## Example of accepting raw bytes in the request
+
+Update stack.yml:
+
+```yaml
+    environment:
+      RAW_BODY: True
+```
+
+> Note: the value for `RAW_BODY` is case-sensitive.
+
+```python
+def handle(req):
+    """handle a request to the function
+    Args:
+        req (str): request body
+    """
+
+    # req is bytes, so an input of "hello" returns i.e. b'hello'
+    return str(req)
+```
+
 
 ## Testing
 The `python3` templates will run `pytest` using `tox` during the `faas-cli build`. There are several options for controlling this.

template/python3-http/Dockerfile

@@ -33,7 +33,7 @@ WORKDIR /home/app/function/
 COPY function/requirements.txt	.
 RUN pip install --user -r requirements.txt
 
-#install function code
+# install function code
 USER root
 COPY function/   .
 RUN chown -R app:app ../
@@ -44,7 +44,7 @@ RUN [ "$TEST_ENABLED" = "false" ] && echo "skipping tests" || eval "$TEST_COMMAN
 
 WORKDIR /home/app/
 
-#configure WSGI server and healthcheck
+# configure WSGI server and healthcheck
 USER app
 
 ENV fprocess="python index.py"