The team SRMASV uses this repository as an API to transfer data from one process or device to another process or device.
To install just type in the following command:
pip install asvmq
There are three type of topologies involved:
- Topic Topology
- Work Queue Topology
- Merge Topology
The publisher objects sends data over RabbitMQ broker, acting as the sole messenger to send data over the asvmq exchange.
The message has to either be an instance of a protobuf message, or it must be a string to be sent over, otherwise the publisher will generate an error and not send your message altogether.
The syntax of Publisher is asvmq.Publisher(topic_name,object_type,hostname, port) Here, the required arguments are bolded.
If the parameter passed to the publish method is a protobuf message, you need not serialise the message, but instead pass the protobuf object to the method itself.
To use the publisher object, write the code in the following manner:
import asvmq
import asvprotobuf.*_pb2
pub = asvmq.Publisher("hello", asvprotobuf.sensor_pb2.Imu)
while True:
pub.publish("Hello world!!")