Middleware
Middleware is computer software that connects software components or applications. It is generally used to develop and run complex, distributed applications.
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Source content checked . English translation published 2026-10-27.
In business automation
Middleware is a software layer between applications: it translates calls, adds authentication, and forwards messages. In automation, it can appear as an API gateway, a queue, or a connection layer between a website and internal systems.
Examples
These examples illustrate a possible workflow. Adapt the connections and rules to your own systems.
Authentication before writing to a CRM
A website form does not write directly to a customer record. A middleware layer checks the signature, adds a request ID, and forwards only permitted fields. This way, a change to the form does not create unrestricted access to the database.
Relevant tools
- n8n
- You can build a middleware layer with authentication, field mapping, and routing to a destination without writing a dedicated server for every form.
What to check
- Middleware without clear logging makes it difficult to tell whether a failure occurred in the form, the gateway, or the target system.