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Regardless of the platforms Xtreme Labs works with, the majority of mobile applications will interact with servers through API calls. More often than not, these APIs are not designed in-house. They’re designed externally, and we are tasked with integrating them into our applications. Issues arise when API’s are delayed or do not function until release. APIs also may change after an application has been released. If developers are not informed of these changes before hand, this can lead to client-side crashes. In order to handle these situations, we developed a tool to simulate and stress-test APIs.
Our API simulator was created with the following functions:
Suppose a developer wishes to test an API, and suppose the response they expect is as such:
"title": "API Simulator Blog Post",
"content": "This is a blog post"
Now suppose the developer wants to test the robustness of their client-side JSON processor. The API Simulator can be invoked with options that test poorly formed responses. For example, if you pass the params
&random=true; the API simulator will randomly change fields of the JSON response with app-breaking strings, such as:
"title": "☃☃☃ ☃☃☃☃ ☃☃☃☃ ☃☃☃☃ ☃☃☃☃",