Building Microservices with Go

Reading and writing JSON

Thanks to the encoding /json package, which is built into the standard library encoding and decoding JSON to and from Go types is both fast and easy. It implements the simplistic Marshal and Unmarshal functions; however, if we need them, the package also provides Encoder and Decoder types that allow us greater control when reading and writing streams of JSON data. In this section, we are going to examine both of these approaches, but first let's take a look at how simple it is to convert a standard Go struct into its corresponding JSON string.