How to stop one micro service from consuming the message from Message queue-RabbitMQ

Question

Please help me in this scenario

Suppose there are multiple micro service consuming the messages from rabbitmq But I want to stop for sometime one microservice to consume the message. 1.How will I achieve that?

Real life based scenario of above Suppose I want to add new messaging vendor(for ex otp sending to mobile) and without letting it know to my previous vendor I want to check whether the new vendor is capable of delivering that load. in that case I want without changing the code at previous vendor side and without changing the queues name How we can achieve that? Please help

Answer 1

to stop a consumer is enough to use channel.basicCancel :

for example:

String consumerTag = channel.basicConsume("queue3", consumer);
........ {cosumer messages}

then wen you need to stop it:

channel.basicCancel(consumerTag)