【发布时间】:2021-11-09 16:26:36
【问题描述】:
我正在尝试升级我们的 NestJS GraphQL 订阅服务器以使用 graphql-ws 而不是当前的 subscriptions-transport-ws(正如 NestJS documentation 所建议的那样)。
我将 NestJS 版本升级为
"@nestjs/core": "^8.0.6",
"@nestjs/graphql": "^9.0.4",
"@nestjs/platform-express": "^8.0.6",
"graphql": "^15.5.3",
"graphql-tools": "^8.2.0",
"apollo-server-express": "^3.3.0",
之后,我将subscriptions 选项添加到App.Module:
GraphQLModule.forRoot({
autoSchemaFile: true,
sortSchema: true,
playground: true,
installSubscriptionHandlers: true,
subscriptions: {
'graphql-ws': true
},
}),
但是,当我(在操场上)订阅以前有效的订阅时,我得到:
{
"error": "Could not connect to websocket endpoint ws://localhost:8880/graphql. Please check if the endpoint url is correct."
}
在控制台中我得到:
WebSocket protocol error occured. It was most likely caused due to an unsupported subprotocol "graphql-ws" requested by the client. graphql-ws implements exclusively the "graphql-transport-ws" subprotocol, please make sure that the client implements it too.
我尝试过的事情:
- 添加
graphql-ws包 - 再次升级 NestJS 版本
- 从配置中删除
installSubscriptionHandlers选项 - 设置
graphql-ws配置而不是传递true - 使用
WebSocket Test ClientGoogle Chrome 扩展程序而不是 Playground
但没有一个有效。对不起,很长的帖子。我该如何解决这个问题?
【问题讨论】:
标签: graphql nestjs graphql-subscriptions