Automating API tests can be a simple but effective way to ensure your data flow and integration points are working as expected. Automating in this layer can also be a lot quicker than having to log into a User Interface and populate the information on-screen, to trigger the API.
Automating APIs directly will also help you execute non-functional tests. This can include both security and performance testing for example.
Tooling within API Automation
With regards to tooling, there are some no-code tools such as Postman and SoapUI, which can be used to automate your API tests. With Licensed versions of these tools help scale up and share the work across the team. You may also opt to utilise your own API testing framework (perhaps using tools such as Rest-Assured or Karate DSL), with the benefit greater flexibility to adapt your tool to fit your solution.
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