小编Hel*_*rey的帖子

我是 GraphQL、gqlgen 库的新手。尝试运行go run github.com/99designs/gqlgen init命令但validation failed: packages.Load: C:\Users\Aylin\Desktop\gqlgen-tutorial\graph\prelude.resolvers.go:19:44: __DirectiveResolver not exported by package generated出现错误。这是项目设置的第一步，不应导致任何错误。任何人都遇到过同样的问题并知道如何解决它？谢谢

我正在尝试在令牌身份验证中间件中提取 user_id 并将其传递给gqlgen的 graphql 解析器函数（以填充 GraphQL 架构的created_by 和updated_by 列）。身份验证部分工作没有任何问题。

Gin 中间件：

    var UID = "dummy"
    func TokenAuthMiddleware() gin.HandlerFunc {
        return func(c *gin.Context) {
            err := auth.TokenValid(c.Request)
            if err != nil {
                c.JSON(http.StatusUnauthorized, "You need to be authorized to access this route")
                c.Abort()
                return
            }
            //
            UID, _ = auth.ExtractTokenID(c.Request)
            //c.Set("user_id", UID)
            
            c.Next()
        }
    }

    func GetUID() string {
        return UID
    }

graphql 解析器：

    var ConstID = middleware.GetUID()
    
    func (r *mutationResolver) CreateFarmer(ctx context.Context, input model.NewFarmer) (*model.Farmer, error) {
        //Fetch …

我有带有 Country 列的用户数据集，并且想要绘制用户在各个国家/地区的分布图。我将数据集转换为字典，其中键是国家/地区名称，值是国家/地区的频率计数。字典是这样的：

'usa': 139421,
'canada': 21601, 
'united kingdom': 18314,
'germany': 17024,
'spain': 13096,
 [...]

为了在世界地图上绘制分布，我使用了以下代码：

#Convert to dictionary
counts = users['Country'].value_counts().to_dict()

#Country names
def getList(dict): 
    return [*dict]

countrs = getList(counts)

#Frequency counts
freqs = list(counts.values())

#Plotting
data = dict(
        type = 'choropleth',
        colorscale = 'Viridis',
        reversescale = True,
        locations = countrs,
        locationmode = "country names",
        z = freqs,
        text = users['Country'],
        colorbar = {'title' : 'Number of Users'},
      ) 

layout = dict(title = 'Number of Users per Country',
                geo …