如何在Go中连接到Gremlin Websocket?
I'm trying to connect to Gremlin which should be running on port 8182 ([INFO] GremlinServer$1 - Channel started at port 8182
)
When I'm connecting to: ws://127.0.0.1:8182
I'm getting the response:
2017/11/03 17:20:04 ERROR: database with the name 'gremlin' gave an error when connecting: websocket: bad handshake.
The Gremlin server responds with:
[WARN] HttpGremlinEndpointHandler - Invalid request - responding with 400 Bad Request and no gremlin script supplied
I'm using Gorilla Websocket in Go to connect:
gremlinGrpcAddress := fmt.Sprintf("ws://%s:%d/", f.config.Host, f.config.Port)
var dialer *websocket.Dialer
clientConn, _, err := dialer.Dial(gremlinGrpcAddress, nil)
if err != nil {
return err
}
f.client = clientConn
UPDATE:
Connecting to echo.websocket.org
works, so somehow it is something in the Gremlin server.
我正在尝试连接到Gremlin,该端口应该在端口8182上运行( 当我连接到: Gremlin服务器响应: p>
[INFO] GremlinServer $ 1 -频道从端口8182开始 code>) p>
ws://127.0.0.1:8182 code>时, 响应: p>
2017/11/03 17:20:04错误:名称为'gremlin'的数据库在连接时出现错误:websocket:错误的握手。
code> pre>
[WARN] HttpGremlinEndpointHandler-无效请求-响应400错误请求且没有gremlin脚本 提供的
code> pre>
The answer lies in the config YAML file.
What is needed is the correct channelizer.
GOOD:
channelizer: org.apache.tinkerpop.gremlin.server.channel.WebSocketChannelizer
Connect to ws://localhost:8182/gremlin
instead of ws://localhost:8182
. There are several references to it in the Apache TinkerPop documentation and the go-gremlin README.