By David Carr

When adopting a service-oriented architecture, one of the things we needed to do was define the data format each service endpoint takes as input and produces as output. In some cases, the input is simple and easily represented as URL segments or query parameters. In most cases, however, either the request body or response body needs to deal with a richer data object. For requests, this data needs to be parsed, validated, and coerced into a format that the application logic can use. For responses, we need to be able to generate the desired data format from the objects generated by the application logic.

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