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Update page 'Message Queue Endpoint'

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Auke Sytsma 2020-03-01 10:58:43 +00:00
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Message-Queue-Endpoint.md
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@ -58,6 +58,20 @@ To create messages and connect to the broker we will need the following settings
All settings are required except for the `META_DATA_URL`, this parameter is optional. All settings are required except for the `META_DATA_URL`, this parameter is optional.
# [FAQ](#faq) # [FAQ](#faq)
#### How do I install the required Python modules?
This tutorial requires the `paho-mqtt` and `protobuf` modules.
These can be installed with the following commands:
**Windows command prompt:**
```
py -m pip install 'paho-mqtt==1.5.0'
py -m pip install 'protobuf==3.11.0'
```
**Linux terminal:**
```
python3 -m pip install 'paho-mqtt==1.5.0'
python3 -m pip install 'protobuf==3.11.0'
```
#### What is a message queue? #### What is a message queue?
A message queue is commonly used to make software programs able to send messages between eachother, and thereby making it easy for data to flow from one program into another. There are many variants of message queues, some popular names are Apache Kafka, MQTT and RabbitMQ. A message queue is commonly used to make software programs able to send messages between eachother, and thereby making it easy for data to flow from one program into another. There are many variants of message queues, some popular names are Apache Kafka, MQTT and RabbitMQ.
@ -78,19 +92,4 @@ To quote the Google Documentation:
> Protocol buffers are Google's language-neutral, platform-neutral, extensible mechanism for serializing structured data – think XML, but smaller, faster, and simpler. > Protocol buffers are Google's language-neutral, platform-neutral, extensible mechanism for serializing structured data – think XML, but smaller, faster, and simpler.
> You define how you want your data to be structured once, then you can use special generated source code to easily write and read your structured data to and from a variety of data streams and using a variety of languages. > You define how you want your data to be structured once, then you can use special generated source code to easily write and read your structured data to and from a variety of data streams and using a variety of languages.
More information can be found in the [protobuf documentation](https://developers.google.com/protocol-buffers/docs/overview). More information can be found in the [protobuf documentation](https://developers.google.com/protocol-buffers/docs/overview).
#### How do I install the required Python modules?
This tutorial requires the `paho-mqtt` and `protobuf` modules.
These can be installed with the following commands:
**Windows command prompt:**
```
py -m pip install 'paho-mqtt==1.5.0'
py -m pip install 'protobuf==3.11.0'
```
**Linux terminal:**
```
python3 -m pip install 'paho-mqtt==1.5.0'
python3 -m pip install 'protobuf==3.11.0'
```