Javascript 阿波罗服务器&x2B;对阿波罗pubSub不显示数据作出反应
在一次变异之后,我似乎无法在我的react前端接收到pubSub数据 我有以下Graphql模式:Javascript 阿波罗服务器&x2B;对阿波罗pubSub不显示数据作出反应,javascript,graphql,apollo-server,react-apollo,Javascript,Graphql,Apollo Server,React Apollo,在一次变异之后,我似乎无法在我的react前端接收到pubSub数据 我有以下Graphql模式: type SSiD { id: ID! name: String status: String hidden: Boolean } type Subscription { SSiDAdded: SSiD } 在我的Apollo服务器上,在mudation之后,我像这样发送pubSub数据 const data = result.dataValues data
type SSiD {
id: ID!
name: String
status: String
hidden: Boolean
}
type Subscription {
SSiDAdded: SSiD
}
在我的Apollo服务器上,在mudation之后,我像这样发送pubSub数据
const data = result.dataValues
data.__typename = 'SSiD'
console.log(data)
context.pubsub.publish('SSiDAdded', data)
该console.log将输出:
{ id: 2208,
name: 'FooBar',
hidden: true,
status: 'broadcasting',
updatedAt: 2016-10-27T22:07:09.119Z,
createdAt: 2016-10-27T22:07:09.119Z,
__typename: 'SSiD' }
最后,在我的react前端,我有以下内容:
const query = gql`
subscription ssidList{
SSiDAdded{
id
name
hidden
}
}
`
this.subscriptionObserver = this.props.client.subscribe({
query
})
.subscribe({
next (data) {
console.log('The subscription data', data)
},
error (err) {
console.error('Error subscription', err)
}
})
}
在上面的console.log上,订阅数据始终为空
我是否包装了错误的响应或类似的内容?这里有一些东西需要检查。在我的模式中,它有一些语法,我目前在你的中没有看到。请参见查询字符串后的
:即时消息
const typeDefinitions = [`
type instant_message {
id: Int
fromID: String
toID: String
msgText: String
}
type Query {
instant_message(id: Int, fromID: String, toID: String, msgText: String): [instant_message]
}
type Mutation {
createIM(
fromID: String!
toID: String!
msgText: String!
): instant_message
}
type Subscription {
# Subscription fires on every comment added
IMAdded(id: Int, fromID: String!, toID: String!): instant_message
}
schema {
query: Query,
mutation: Mutation
subscription: Subscription
}
`];
我在客户端上也有一些不同的语法:
subscribe(fromID, toID, updateQueryViaSubscription) {
const SUBSCRIPTION_QUERY = gql`
subscription getIMsViaSubscription($fromID: String!, $toID: String!){
IMAdded(fromID:$fromID, toID: $toID){
id,
fromID,
toID,
msgText
}
}
`;
this.subscriptionObserver = this.props.client.subscribe({
query: SUBSCRIPTION_QUERY,
variables: { fromID: this.fromID, toID: this.toID },
}).subscribe({
next(data) {
const newMsag = data.IMAdded;
updateQueryViaSubscription((previousResult) => {
// if it's our own mutation, we might get the subscription result
// after the mutation result.
// if (isDuplicateIM(newComment, previousResult.entry.comments)) {
// return previousResult;
// }
// update returns a new "immutable" list with the new comment
// added to the front.
return update(
previousResult,
{
instant_message: {
$push: [newMsag],
},
}
);
});
},
error(err) {
console.error('err', err); },
});
}
请检查这一点,并让我知道更新后的代码是否消除了该错误
更新:根据我们关于Slack的讨论,您发现您需要您的executableSchema如下:
const executableSchema = makeExecutableSchema({
typeDefs: typeDefinitions,
resolvers: Resolvers,
connectors: Connectors,
logger: console,
});
export default executableSchema;
这是我正在使用的解析器:
Subscription: {
IMAdded(IMThatWasAdded) {
var ret = IMThatWasAdded;
return ret;
}
}
这里有几件事要检查。在我的模式中,它有一些语法,我目前在你的中没有看到。请参见查询字符串后的:即时消息
const typeDefinitions = [`
type instant_message {
id: Int
fromID: String
toID: String
msgText: String
}
type Query {
instant_message(id: Int, fromID: String, toID: String, msgText: String): [instant_message]
}
type Mutation {
createIM(
fromID: String!
toID: String!
msgText: String!
): instant_message
}
type Subscription {
# Subscription fires on every comment added
IMAdded(id: Int, fromID: String!, toID: String!): instant_message
}
schema {
query: Query,
mutation: Mutation
subscription: Subscription
}
`];
我在客户端上也有一些不同的语法:
subscribe(fromID, toID, updateQueryViaSubscription) {
const SUBSCRIPTION_QUERY = gql`
subscription getIMsViaSubscription($fromID: String!, $toID: String!){
IMAdded(fromID:$fromID, toID: $toID){
id,
fromID,
toID,
msgText
}
}
`;
this.subscriptionObserver = this.props.client.subscribe({
query: SUBSCRIPTION_QUERY,
variables: { fromID: this.fromID, toID: this.toID },
}).subscribe({
next(data) {
const newMsag = data.IMAdded;
updateQueryViaSubscription((previousResult) => {
// if it's our own mutation, we might get the subscription result
// after the mutation result.
// if (isDuplicateIM(newComment, previousResult.entry.comments)) {
// return previousResult;
// }
// update returns a new "immutable" list with the new comment
// added to the front.
return update(
previousResult,
{
instant_message: {
$push: [newMsag],
},
}
);
});
},
error(err) {
console.error('err', err); },
});
}
请检查这一点,并让我知道更新后的代码是否消除了该错误
更新:根据我们关于Slack的讨论,您发现您需要您的executableSchema如下:
const executableSchema = makeExecutableSchema({
typeDefs: typeDefinitions,
resolvers: Resolvers,
connectors: Connectors,
logger: console,
});
export default executableSchema;
这是我正在使用的解析器:
Subscription: {
IMAdded(IMThatWasAdded) {
var ret = IMThatWasAdded;
return ret;
}
}
在后端,我使用“:“它是:SSiD,只是我没有接受任何参数,所以它变成了name:ReturnType,在前端,我认为有点类似于”queryName{subscriptionName{fields}}“,在后端,我使用“:“它是:SSiD,只是我没有接受任何参数,所以它变成了name:ReturnType,在前端,我认为类似于“queryName{subscriptionName{fields}”