Required features

• Provide 2 http endpoints (<host>/v1/diff/<ID>/left and <host>/v1/diff/<ID>/right) that accept JSON containing base64 encoded binary data on both endpoints.
• The provided data needs to be diff-ed and the results shall be available on a third endpoint (<host>/v1/diff/<ID>). The results shall provide the following info in JSON format:
  • If equal return that
  • If not of equal size just return that
  • If of same size provide insight in where the diff are, actual diffs are not needed.
    • So mainly offsets + length in the data

Note, that we are not looking for ideal diffing algorithm.

Make assumptions in the implementation explicit, choices are good but need to be communicated.

Use a Version Control System (preferably Git or Mercurial). Put the source code on a public repository or send it zipped.

Requirements

• Preferably C#. If you are really not comfortable with C#, you can use some other object-oriented and/or functional language, but provide more detailed info for running the solution
• Functionality shall be under integration tests (not full code coverage is required)
• Internal logic shall be under unit tests (not full code coverage is required)
• Documentation in code
• Short readme on usage

See the sample on next site.

Test case (input & output)

API Result (in Postman)

Test Result