Dump all key-values in context.

dump_context_kv.go

func DumpContextKV(ctx interface{}) map[any]any {
    ret := make(map[any]any)

    contextKeys := reflect.TypeOf(ctx).Elem()
    contextValues := reflect.ValueOf(ctx).Elem()
    if contextKeys.Kind() != reflect.Struct {
        return ret
    }

    var key, val any
    found := false
    for i := 0; i < contextValues.NumField(); i++ {
        reflectValue := contextValues.Field(i)
        reflectValue = reflect.NewAt(reflectValue.Type(), unsafe.Pointer(reflectValue.UnsafeAddr())).Elem()

        reflectField := contextKeys.Field(i)

        if reflectField.Name == "Context" {
            tmpMap := dumpContextInternals(reflectValue.Interface())
            for k, v := range tmpMap {
                ret[k] = v
            }
        } else if reflectField.Name == "cancelCtx" {
            tmpMap := dumpContextInternals(reflectValue.FieldByName("Context").Interface())
            for k, v := range tmpMap {
                ret[k] = v
            }
        } else if reflectField.Name == "key" {
            found = true
            key = reflectValue.Interface()
        } else if reflectField.Name == "val" {
            val = reflectValue.Interface()
        }
    }
    if found {
        ret[key] = val
    }
    return ret
}