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Going serverless is ‘pay-per-use computing’, i.e. when you’re not using it, there are no costs. Cloud providers, like AWS, offer managed off-the-shelf services on their own servers. While there are some challenges to this new architecture, the ways moving to serverless can transform a business often far outweigh these. Using AWS Lambda, users are able to implement parallel computing. The possibilities are endless for the ease at which to build RESTful APIs.