Type Support & Conversions

All data flowing between functions within the Flows system are strongly typed. When connecting backward input and output ports together, connections can only be made between ports with compatible types.

Types

Below are all types that are currently supported by the flow system.

Boolean Types

bool	Either true or false.

Number Types

int8	Number between -128 to 127.
int16	Number between -32,768 to 32,767.
int32	Number between -2,147,483,648 to 2,147,483,647.
int64	Number between -9,223,372,036,854,775,808 to 9,223,372,036,854,775,807.
uint8	Number between 0 to 255.
uint16	Number between 0 to 65,535.
uint32	Number between 0 to 4,294,967,295.
uint64	Number between 0 to 18,446,744,073,709,551,615.
float32	Number that meets the IEEE-754 32-bit floating-point numbers specification.
float64	Number that meets the IEEE-754 64-bit floating-point numbers specification.

String Types

string	An arbitrary sequence of characters.
JSONString	A string containing JSON.

Array Types

[]interface{}	Array of any type.
[]string	Array of strings.
[]TelemetryMessage	Array of telemetry messages.
[]CommandResponse	Array of command responses.
[]CallableResponse	Array of callable responses.
[]ControlAck	Array of control acknowledgments.

Map Types

map[string]interface{}	Collection of string keys with values of any type.
map[string]string	Collection of string keys with string values.

Duration Types

Duration	A duration represents a period of time.

URI Types

RocosURI	A special type of URI used by the Rocos Agent.

Composite Types

TelemetryMessage	Represents a telemetry message.
CommandResponse	A response to the execution of a command.
CallableResponse	A response to a service request.
ControlAck	A response to a control message.
PayloadValue
Transform	Represents the position and orientation.
Marker

Any Types

interface{}	This is a special type that can hold any other type.

Conversions

The matrix below shows all types currently supported and the conversions from each type to all other types.