How Can I Convert a Go Struct to a Map?

Converting a Struct to a Map in Golang

For convenience in certain scenarios, it may be necessary to convert a struct to a map in Golang. This can be achieved through the reflect and json packages.

Using the Reflect Package

One approach involves utilizing the reflect package to inspect the structure of the struct and build a map dynamically. This can be done using the provided ConvertToMap function:

<br>func ConvertToMap(model interface{}) bson.M {<pre class="brush:php;toolbar:false">ret := bson.M{}

modelReflect := reflect.ValueOf(model)
... // Implementation

return ret

}

Leveraging the Structs Package

Alternatively, the structs package offers a convenient and comprehensive solution. It supports various operations involving structs, including converting them to maps. For instance, the following code snippet utilizes the Map function:

<br>type Server struct {<pre class="brush:php;toolbar:false">Name string
ID int32
Enabled bool

}

s := &Server{

Name: "gopher",
ID: 123456,
Enabled: true,

}

m := structs.Map(s) // => {"Name":"gopher", "ID":123456, "Enabled":true}

The structs package handles scenarios such as anonymous (embedded) fields and nested structs. Additionally, it provides options for filtering fields through the use of field tags.

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