Type of 'GlobalExchange' is hardcoded

[mglimmerveen]

Context

• node version: 10.15.3
• bunnybus version: 3.1.1
• environment (node, browser): node
• We're using the RabbitMQ delayed message plugin

What are you trying to achieve or the steps to reproduce ?

I'm trying to publish a message to a RabbitMQ delayed message exchange (type 'x-delayed-message', as defined by the RabbitMQ delayed message plug-in), using BunnyBus. When I declare this exchange as 'globalExchange', I run into an error, because BunnyBus 'assumes' that this exchange is of type 'topic'. This is hardcoded in the _publish function.

It would be nice to make this 'globalExchangeType' configurable, or perhaps make the _publish function agnostic of the exchange type for existing exchanges.

What result did you observe ?

I got the following error message:

Operation failed: ExchangeDeclare; 406 (PRECONDITION-FAILED) with message "PRECONDITION_FAILED - inequivalent arg 'type' for exchange 'Bot' in vhost '/': received 'topic' but current is ''x-delayed-message''"