2019-02-21 06:13
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I am using the package: "github.com/mongodb/mongo-go-driver/mongo"

I am trying to use the following as specified in the documentation:

mongoContext, _ := context.WithTimeout(context.Background(), 10*time.Second)
mongoClient, _ := mongo.Connect(mongoContext, "mongodb://localhost:27017")

However on the second line I get the error:

cannot use "mongodb://localhost:27017" (type string) as type *options.ClientOptions in argument to mongo.Connect

It seems the documentation doesn't match the implementation. Has anyone been successful?

The documentation states:

//To do this in a single step, you can use the Connect function:
ctx, _ := context.WithTimeout(context.Background(), 10*time.Second)
client, err := mongo.Connect(ctx, "mongodb://localhost:27017")

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我正在使用以下软件包:“ github.com/mongodb/mongo-go-driver/mongo”


  mongoContext,_:= context.WithTimeout(context.Background(),10 *时间。第二 )
mongoClient,_:= mongo.Connect(mongoContext,“ mongodb:// localhost:27017”)


  的参数中使用“ mongodb:// localhost:27017”(类型字符串)作为类型* options.ClientOptions  > 

似乎文档与实现不匹配。 有没有人成功?


  //要一步完成 ,则可以使用Connect函数:
ctx,_:= context.WithTimeout(context.Background(),10 * time.Second)
client,err:= mongo.Connect(ctx,“ mongodb:// localhost:27017  “)
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1条回答 默认 最新

  • doucheng3811 2019-02-21 06:20

    The documentation states that the Connect method have to use a context object. It also provides an example of usage:

    You connection string have to be provided to the NewClient function first.

    client, err := mongo.NewClient(mongo.options.Client().ApplyURI("mongodb://localhost:27017"))
    if err != nil {
        // error
    ctx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
    defer cancel()
    err = client.Connect(ctx)
    if err != nil {
        // error
    // here you can use the client object


    To use it as a single step as you try to do, you should be able to do:

    ctx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
    defer cancel()
    mongoClient, err := mongo.Connect(ctx, mongo.options.Client().ApplyURI("mongodb://localhost:27017"))
    if err != nil {
        // error

    (The connection string has to be put inside an options.ClientOptions object, and the options.Client().ApplyURI() method will take care of it)

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