Available nodes in the Platform's FlowEngine
- 1 Introduction
- 2 Component List
- 2.1 Input
- 2.2 Social
- 2.3 Advanced
- 2.4 Spreadsheet
- 2.5 Analysis
- 2.6 Output
- 2.7 Storage
- 2.8 Raspberry Pi
- 2.9 Utilities
- 2.10 Weather
- 2.11 Onesait Platform Dataflows
- 2.12 Function
- 2.13 INPUT
- 2.14 OUTPUT
- 2.15 FUNCTION
- 2.16 STORAGE
- 2.17 ANALYSIS
- 2.18 ADVANCED
- 2.19 RASPBERRY PI
- 2.20 WEATHER
- 2.21 UTILITIES
- 2.22 SPREADSHEET
- 2.23 ONESAIT PLATFORM DATAFLOWS
- 2.24 Onesait Platform Dataflows
Introduction
The Flow Engine module is the flow engine that allows to perform data intake, and is build through the programming tool Node-RED, with which you can connect both hardware devices, APIs and online services. One of the advantages on the use of the flow created through Node-RED, is that the information is storage in JSON format, which can be is easily imported or exported.
To create flows using Node-RED, it uses individual units called nodes, and the connection between these nodes is simple and intuitive. In the tool viewer, you can find a description of the node, its inputs and outputs. Next, we show a list of the nodes that have been incorporated into the platform's Flow Engine module along with the library to which each corresponds to, a short description of it, and the official relative documentation.
Component List
INPUT
Node Name | Library | Description | Technical documentation |
 | Activates the flow manually or at regular intervals. | ||
| Catches errors thrown by nodes in the same tab. | ||
| Reports about messages from other nodes in the same tab. | ||
| Creates virtual links between flows. | ||
| Connects to a MQTT broker, and subscribes to the messages of a specific topic. | ||
| Create a HTTP endpoint for creating web services. | ||
| WebSocket entry node. | ||
| Node-RED-bluemix-nodes | Provides TCP inputs. It can be connected to a remote port or accept incoming connections. | ย |
| Input node that generates a message that contains an encrypted buffer, string or string. | ||
| ย Onesait Platform's own node | Create a HTTP endpoint for creating web services. | ย ย |
| Performs an insertion of data in the target ontology. | ||
| Onesait Platform's own node | ย Input node for notifications. | |
| Node-RED-contrib-ttn | Receive events from devices connected to The Things Network. | |
| Receive information from devices connected to The Things Network. | ||
| Connects to a Stomp server to receive messages. | ||
| Subscribes to a specific PubNub channel and receive its content. | ||
Node Name | Library | Description | Technical documentation |
| Monitors messages in an editor. Sends messages within the editor for debugging purposes. | ||
| Creates virtual links between flows. | ||
| Connects to a MQTT broker, and subscribes the messages of a specific topic. | ||
| Sends responses back to requests received from an HTTP input node. | ||
| WebSocket exit node. | ||
| ย Node-RED-bluemix-nodes | Provides TCP output options. | ย |
| Sends the corresponding message to the host and the assigned UDP port. | ||
| Onesait Platform's own node | Send responses back to requests received from an HTTP input node. | |
| Node-RED-contrib-ttn | Sends information to a device connected to The Things Network. | |
| ย Node-RED-node-stomp | Connects to a Stomp server to send messages. | ย |
| Node-RED-contrib-pubnub | Posts messages on the specified PubNub channel. | |
FUNCTION
Node Name | Library | Description | Technical documentation |
| ย Node-RED's own node | JavaScript method that works against the messages received by the node. | |
| Sets properties based on the template that is added. | ||
| ย Node-RED's own node | Delays message entry at set intervals. | |
| Creates a timeout within the flow so a first message is sent, and optionally, depending on the chosen value, a second message will also be sent. | ||
| Node-RED's own node | Allows to insert a comment. | ย |
| Node-RED's own node | Sends a HTTP request, and return a response. | ย |
| Node-RED'-bluemix-nodes | Connects to a remote TCP port, and answers messages from an input client. | |
| ย ย ย ย ย ย Node-RED's own node | Routes messages based on their property values or sequential position. | |
| Adds, changes, deletes or moves properties of a message. You can specify multiple rules that apply, in the defined order. | ||
| Scales linearly the received value. | ||
| Splits a message into a sequence of messages. | ||
| Joins a sequence of messages into a single message. The way to join them can be automatic, manual or reduced sequence. | ||
| Sorts a sequence of messages, or the properties of one. | ||
| Creates message sequences based on different rules, such as: number of messages, time intervals and concatenated sequences. | ||
| ย ย ย ย Node-RED's own node | Converts between the CSV format and the JavaScript object that represents it. The process can be done in either direction. | |