fix: proper usage of parser on extensions and sample readme (#47)

Co-authored-by: Lukasz Gornicki <lpgornicki@gmail.com>
Co-authored-by: sebastien andreo <sebastien.andreo@siemens.com>

Author: 3 people

filters/all.js

@@ -293,7 +293,7 @@ const getMethods = (obj) => {
 function getFunctionNameByChannel(channelName, channel) {
   let ret = _.camelCase(channelName);
   //console.log('functionName channel: ' + JSON.stringify(channelJson));
-  let functionName = channel.ext(['x-function-name']);
+  let functionName = channel.ext('x-function-name');
   //console.log('function name for channel ' + channelName + ': ' + functionName);
   if (functionName) {
     ret = functionName;

samples/README.md

@@ -0,0 +1,43 @@
+# How to run the sample 
+
+## Prerequisites
+
+- Python 3 with `pip` and `paho-mqtt` preinstalled
+- Docker 
+
+## Run the example
+
+1. Generate the code
+    ```
+    ag  https://raw.githubusercontent.com/asyncapi/python-paho-template/master/samples/temperature.yaml @asyncapi/python-paho-template -o ./generated_code
+    ```
+2.  Patch main.py to send some data
+    An example of code:
+
+    ```
+      # Example of how to publish a message. You will have to add arguments to the constructor on the next line:
+      payload = SensorReading("SensorId3",12,SensorReading.BaseUnit.CELSIUS)
+    ```
+3. Create Mosquitto broker configuration
+
+    Get the example configuration from [here](https://github.com/asyncapi/python-paho-template/blob/master/samples/mosquitto.conf)
+  
+    > In `mosquitto.conf` we enabled anonymous logging. This **SHOULD NOT** be the case in production.
+  
+4. Install and run mosquitto MQTT broker
+    ```
+    docker run -it -p 0.0.0.0:1883:1883 -p 0.0.0.0:9001:9001 -v $PWD/../samples/mosquitto.conf:/mosquitto/config/mosquitto.conf  eclipse-mosquitto
+    ```
+5. Configure .ini file
+    Rename `config-template.inì` into `config.ini` and paste:
+    ```
+    [DEFAULT]
+    host=127.0.0.1
+    password=
+    port=1883
+    username=
+     ```
+6. Run your code
+    ```
+    python main.py
+    ```