The Thin-Consumer Pattern: Moving .NET Jobs from Hangfire to RabbitMQ Without Rewriting Them
Replacing a background-job system sounds scary because the jobs do real work — sending email, dispatching webhooks, re-fetching content. Get the migration wrong and you drop a customer's email or fire a webhook twice.
It doesn't have to be scary. When I moved every polling Hangfire job in my .NET app to RabbitMQ, the whole thing stayed boring because of one pattern: the thin consumer. This post is that pattern, plus the four details around it that actually matter.
Disclosure: I'm the founder of SavePosty, a read-it-later app, and this is a pattern from a real migration in our own .NET codebase — not a sponsored post.
The pattern: a thin shell in front of unchanged logic
The mistake people make is treating a job-system migration as a rewrite. It isn't. Your job classes already work — they're tested, they handle the edge cases, they're battle-worn. The only...
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