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Unified management of the configurations of different environments and different clusters Apollo provides a unified interface to centrally manage the configurations of different environments, different clusters, and different namespaces The same codebase could have different configurations when deployed in different clusters With the namespace concept, it is easy to support multiple applications to share the same configurations, while also allowing them to customize the configurations Multiple languages is provided in user interface(currently Chinese and English)
Configuration changes takes effect in real time (hot release) After the user modified the configuration and released it in Apollo, the sdk will receive the latest configurations in real time (1 second) and notify the application
Release version management Every configuration releases are versioned, which is friendly to support configuration rollback
Grayscale release Support grayscale configuration release, for example, after clicking release, it will only take effect for some application instances. After a period of observation, we could push the configurations to all application instances if there is no problem
Authorization management, release approval and operation audit Great authorization mechanism is designed for applications and configurations management, and the management of configurations is divided into two operations: editing and publishing, therefore greatly reducing human errors All operations have audit logs for easy tracking of problems
Client side configuration information monitoring It's very easy to see which instances are using the configurations and what versions they are using
Rich SDKs available Provides native sdks of Java and .Net to facilitate application integration Support Spring Placeholder, Annotation and Spring Boot ConfigurationProperties for easy application use (requires Spring 3.1.1+) Http APIs are provided, so non-Java and .Net applications can integrate conveniently Rich third party sdks are also available, e.g. Golang, Python, NodeJS, PHP, C, etc
Open platform API Apollo itself provides a unified configuration management interface, which supports features such as multi-environment, multi-data center configuration management, permissions, and process governance However, for the sake of versatility, Apollo will not put too many restrictions on the modification of the configuration, as long as it conforms to the basic format, it can be saved. In our research, we found that for some users, their configurations may have more complicated formats, such as xml, json, and the format needs to be verified There are also some users such as DAL, which not only have a specific format, but also need to verify the entered value before saving, such as checking whether the database, username and password match For this type of application, Apollo allows the application to modify and release configurations through open APIs, which has great authorization and permission control mechanism built in
Simple deployment As an infrastructure service, the configuration center has very high availability requirements, which forces Apollo to rely on external dependencies as little as possible Currently, the only external dependency is MySQL, so the deployment is very simple. Apollo can run as long as Java and MySQL are installed Apollo also provides a packaging script, which can generate all required installation packages with just one click, and supports customization of runtime parameters
Vue 3, GraphQL, Apollo - How to re-render query when cache changes?
<template>
<div v-if="loading">...loading</div>
<div v-else-if="error">{{ error.message }}</div>
<div v-else>{{value}}</div>
</template>
<script setup lang="ts">
import gql from "graphql-tag";
import { GetValueQuery } from "./ValueComponent.generated";
import { useQuery, useResult } from "@vue/apollo-composable";
const GetValue = gql`
query getValue {
value
}
`;
function useGetValue() {
const { result, loading, error } =
useQuery<GetValueQuery>(GetValue);
const value = useResult(result, null, (data) => data.value);
return { value, loading, error };
}
const { value, loading, error } = useGetScans();
</script>
Apollo Client "Named export 'remove' not found"
// nuxt.config.js
// ...
build: {
postcss: {
postcssOptions: require('./postcss.config.js')
},
transpile: [
'@apollo/client',
'ts-invariant/process',
],
},
// ...
I need help on 'Cannot find namespace Kind' issue
$ yarn add @apollo/gateway@~0.46.0
NestJS GraphQL subscriptions not working with `graphql-ws`
subscriptions: {
'graphql-ws': true,
'subscriptions-transport-ws': true,
},
AWS Graphql lambda query
query author(id: '1') { # Query { author } resolver
authorName
books { # Author { books(parent) } resolver
name
authors { # Book { author(parent) } resolver
id
}
}
}
// resolver map - passed to the Apollo Server constructor
const resolvers = {
Query: {
books,
authors,
author,
book,
},
Author: {
books(parent) { getAuthorBooks(parent); }, // parent is the author - resolver should return a list of books
},
Book: {
authors(parent) { getBookAuthors(parent); }, // parent is the book - resolver should return a list of authors
},
};
-----------------------
query author(id: '1') { # Query { author } resolver
authorName
books { # Author { books(parent) } resolver
name
authors { # Book { author(parent) } resolver
id
}
}
}
// resolver map - passed to the Apollo Server constructor
const resolvers = {
Query: {
books,
authors,
author,
book,
},
Author: {
books(parent) { getAuthorBooks(parent); }, // parent is the author - resolver should return a list of books
},
Book: {
authors(parent) { getBookAuthors(parent); }, // parent is the book - resolver should return a list of authors
},
};
How to use Graphql typescript types in react
type Product = {
__typename: "Product";
id: string;
price: number | null;
description: string | null;
name: string | null;
};
const ProductComponent: FC<Product> = ({ name }) => {
return <p>{name}</p>;
};
export default ProductComponent;
-----------------------
interface ProductComponentProps {
product: ProductData_allProducts
}
const Product = ({product}: ProductComponentProps) => {
return (
<p>{product.name}</p>
);
};
-----------------------
const Product = ({ product }: { product: ProductData_allProducts }) => {
return <p>{product.name}</p>;
};
const Product = (props: ProductData_allProducts) => {
return (
<p>{product.name}</p>
);
};
-----------------------
const Product = ({ product }: { product: ProductData_allProducts }) => {
return <p>{product.name}</p>;
};
const Product = (props: ProductData_allProducts) => {
return (
<p>{product.name}</p>
);
};
Testing React Component with React Router V6
declare function MemoryRouter(
props: MemoryRouterProps
): React.ReactElement;
interface MemoryRouterProps {
basename?: string;
children?: React.ReactNode;
initialEntries?: InitialEntry[];
initialIndex?: number;
}
const AllTheProviders = ({ children }) => {
return (
<ApolloProvider client={client}>
<Provider store={store}>
{children}
</Provider>
</ApolloProvider>
);
};
const customRender = (ui, options) =>
render(ui, { wrapper: AllTheProviders, ...options });
const { ....queries.... } = customRender(
<MemoryRouter
initialEntries={["Test page", "/details/url-param-the-component-needs"]}
>
<ComponentUnderTest />
</MemoryRouter>
);
const { ....queries.... } = customRender(
<MemoryRouter
initialEntries={["Test page", "/details/url-param-the-component-needs"]}
>
<Routes>
<Route path="/details/:theParam" element={<ComponentUnderTest />} />
</Routes>
</MemoryRouter>
);
-----------------------
declare function MemoryRouter(
props: MemoryRouterProps
): React.ReactElement;
interface MemoryRouterProps {
basename?: string;
children?: React.ReactNode;
initialEntries?: InitialEntry[];
initialIndex?: number;
}
const AllTheProviders = ({ children }) => {
return (
<ApolloProvider client={client}>
<Provider store={store}>
{children}
</Provider>
</ApolloProvider>
);
};
const customRender = (ui, options) =>
render(ui, { wrapper: AllTheProviders, ...options });
const { ....queries.... } = customRender(
<MemoryRouter
initialEntries={["Test page", "/details/url-param-the-component-needs"]}
>
<ComponentUnderTest />
</MemoryRouter>
);
const { ....queries.... } = customRender(
<MemoryRouter
initialEntries={["Test page", "/details/url-param-the-component-needs"]}
>
<Routes>
<Route path="/details/:theParam" element={<ComponentUnderTest />} />
</Routes>
</MemoryRouter>
);
-----------------------
declare function MemoryRouter(
props: MemoryRouterProps
): React.ReactElement;
interface MemoryRouterProps {
basename?: string;
children?: React.ReactNode;
initialEntries?: InitialEntry[];
initialIndex?: number;
}
const AllTheProviders = ({ children }) => {
return (
<ApolloProvider client={client}>
<Provider store={store}>
{children}
</Provider>
</ApolloProvider>
);
};
const customRender = (ui, options) =>
render(ui, { wrapper: AllTheProviders, ...options });
const { ....queries.... } = customRender(
<MemoryRouter
initialEntries={["Test page", "/details/url-param-the-component-needs"]}
>
<ComponentUnderTest />
</MemoryRouter>
);
const { ....queries.... } = customRender(
<MemoryRouter
initialEntries={["Test page", "/details/url-param-the-component-needs"]}
>
<Routes>
<Route path="/details/:theParam" element={<ComponentUnderTest />} />
</Routes>
</MemoryRouter>
);
-----------------------
declare function MemoryRouter(
props: MemoryRouterProps
): React.ReactElement;
interface MemoryRouterProps {
basename?: string;
children?: React.ReactNode;
initialEntries?: InitialEntry[];
initialIndex?: number;
}
const AllTheProviders = ({ children }) => {
return (
<ApolloProvider client={client}>
<Provider store={store}>
{children}
</Provider>
</ApolloProvider>
);
};
const customRender = (ui, options) =>
render(ui, { wrapper: AllTheProviders, ...options });
const { ....queries.... } = customRender(
<MemoryRouter
initialEntries={["Test page", "/details/url-param-the-component-needs"]}
>
<ComponentUnderTest />
</MemoryRouter>
);
const { ....queries.... } = customRender(
<MemoryRouter
initialEntries={["Test page", "/details/url-param-the-component-needs"]}
>
<Routes>
<Route path="/details/:theParam" element={<ComponentUnderTest />} />
</Routes>
</MemoryRouter>
);
Error: GraphQL error: Field 'metafieldsSet' doesn't exist on type 'Mutation' - Shopify GraphQL error
API_VERSION: "2021-10",
Error: You must `await server.start()` before calling `server.applyMiddleware()`
import { ApolloServer } from 'apollo-server-express';
import express from 'express';
async function startApolloServer(typeDefs, resolvers) {
// Same ApolloServer initialization as before
const server = new ApolloServer({ typeDefs, resolvers });
// Required logic for integrating with Express
await server.start();
const app = express();
server.applyMiddleware({
app,
// By default, apollo-server hosts its GraphQL endpoint at the
// server root. However, *other* Apollo Server packages host it at
// /graphql. Optionally provide this to match apollo-server.
path: '/'
});
// Modified server startup
await new Promise(resolve => app.listen({ port: 4000 }, resolve));
console.log(`🚀 Server ready at http://localhost:4000${server.graphqlPath}`);
}
-----------------------
...
const apolloServer = new ApolloServer({
schema,
... // other config
});
// without this, apollo will throw an error.
await apolloServer.start();
const app = express();
apolloServer.applyMiddleware({
app,
... // other config
});
...
-----------------------
server.start().then(res => {
server.applyMiddleware({ app, path: '/' });
app.listen({ port }, () =>
console.log(`Gateway API running at port: ${port}`)
);
});
How do I map my Union typed GraphQL response Array in React and Typescript
// I don't know what NodeType is so I'm just using a string for this example
type NodeType = string
interface GetNodesTypeOne {
readonly getNodesTypeOne: {
readonly nodes: NodeType[]
}
}
interface GetNodesTypeTwo {
readonly getNodesTypeTwo: {
readonly nodes: NodeType[]
}
}
type GqlRes = GetNodesTypeOne | GetNodesTypeTwo
const resultOne:GqlRes = {
getNodesTypeOne: {
nodes: [ "test" ]
}
}
const resultTwo:GqlRes = {
getNodesTypeTwo: {
nodes: [ "test" ]
}
}
const items = data?.getNodesTypeOne.nodes.map(...)
const nodes = "getNodesTypeOne" in data
? data?.getNodesTypeOne?.nodes
: data?.getNodesTypeTwo?.nodes
const items = nodes.map(...);
const nodes = blockData.myType === 'type-one'
? (data as GetNodesTypeOne)?.getNodesTypeOne?.nodes
: (data as GetNodesTypeTwo)?.getNodesTypeTwo?.nodes
const items = nodes.map(...);
const useQueryOne = blockData.myType === 'type-one';
const { data: nodesOne } = useQuery<NodesOneGqlRes, NodesArgs>(NODES_TYPE_ONE,
{
variables: {
customKey: metadata.customKey || 0,
},
errorPolicy: 'all',
notifyOnNetworkStatusChange: true,
ssr: false,
skip: !useQueryOne
}
);
const { data: nodesTwo } = useQuery<NodesTwoGqlRes, NodesArgs>(NODES_TYPE_TWO,
{
variables: {
customKey: metadata.customKey || 0,
},
errorPolicy: 'all',
notifyOnNetworkStatusChange: true,
ssr: false,
skip: useQueryOne
}
);
const nodes = useQueryOne
? nodesOne?.getNodesTypeOne?.nodes
: nodesTwo?.getNodesTypeTwo?.nodes;
const items = (nodes || []).map(...);
-----------------------
// I don't know what NodeType is so I'm just using a string for this example
type NodeType = string
interface GetNodesTypeOne {
readonly getNodesTypeOne: {
readonly nodes: NodeType[]
}
}
interface GetNodesTypeTwo {
readonly getNodesTypeTwo: {
readonly nodes: NodeType[]
}
}
type GqlRes = GetNodesTypeOne | GetNodesTypeTwo
const resultOne:GqlRes = {
getNodesTypeOne: {
nodes: [ "test" ]
}
}
const resultTwo:GqlRes = {
getNodesTypeTwo: {
nodes: [ "test" ]
}
}
const items = data?.getNodesTypeOne.nodes.map(...)
const nodes = "getNodesTypeOne" in data
? data?.getNodesTypeOne?.nodes
: data?.getNodesTypeTwo?.nodes
const items = nodes.map(...);
const nodes = blockData.myType === 'type-one'
? (data as GetNodesTypeOne)?.getNodesTypeOne?.nodes
: (data as GetNodesTypeTwo)?.getNodesTypeTwo?.nodes
const items = nodes.map(...);
const useQueryOne = blockData.myType === 'type-one';
const { data: nodesOne } = useQuery<NodesOneGqlRes, NodesArgs>(NODES_TYPE_ONE,
{
variables: {
customKey: metadata.customKey || 0,
},
errorPolicy: 'all',
notifyOnNetworkStatusChange: true,
ssr: false,
skip: !useQueryOne
}
);
const { data: nodesTwo } = useQuery<NodesTwoGqlRes, NodesArgs>(NODES_TYPE_TWO,
{
variables: {
customKey: metadata.customKey || 0,
},
errorPolicy: 'all',
notifyOnNetworkStatusChange: true,
ssr: false,
skip: useQueryOne
}
);
const nodes = useQueryOne
? nodesOne?.getNodesTypeOne?.nodes
: nodesTwo?.getNodesTypeTwo?.nodes;
const items = (nodes || []).map(...);
-----------------------
// I don't know what NodeType is so I'm just using a string for this example
type NodeType = string
interface GetNodesTypeOne {
readonly getNodesTypeOne: {
readonly nodes: NodeType[]
}
}
interface GetNodesTypeTwo {
readonly getNodesTypeTwo: {
readonly nodes: NodeType[]
}
}
type GqlRes = GetNodesTypeOne | GetNodesTypeTwo
const resultOne:GqlRes = {
getNodesTypeOne: {
nodes: [ "test" ]
}
}
const resultTwo:GqlRes = {
getNodesTypeTwo: {
nodes: [ "test" ]
}
}
const items = data?.getNodesTypeOne.nodes.map(...)
const nodes = "getNodesTypeOne" in data
? data?.getNodesTypeOne?.nodes
: data?.getNodesTypeTwo?.nodes
const items = nodes.map(...);
const nodes = blockData.myType === 'type-one'
? (data as GetNodesTypeOne)?.getNodesTypeOne?.nodes
: (data as GetNodesTypeTwo)?.getNodesTypeTwo?.nodes
const items = nodes.map(...);
const useQueryOne = blockData.myType === 'type-one';
const { data: nodesOne } = useQuery<NodesOneGqlRes, NodesArgs>(NODES_TYPE_ONE,
{
variables: {
customKey: metadata.customKey || 0,
},
errorPolicy: 'all',
notifyOnNetworkStatusChange: true,
ssr: false,
skip: !useQueryOne
}
);
const { data: nodesTwo } = useQuery<NodesTwoGqlRes, NodesArgs>(NODES_TYPE_TWO,
{
variables: {
customKey: metadata.customKey || 0,
},
errorPolicy: 'all',
notifyOnNetworkStatusChange: true,
ssr: false,
skip: useQueryOne
}
);
const nodes = useQueryOne
? nodesOne?.getNodesTypeOne?.nodes
: nodesTwo?.getNodesTypeTwo?.nodes;
const items = (nodes || []).map(...);
-----------------------
// I don't know what NodeType is so I'm just using a string for this example
type NodeType = string
interface GetNodesTypeOne {
readonly getNodesTypeOne: {
readonly nodes: NodeType[]
}
}
interface GetNodesTypeTwo {
readonly getNodesTypeTwo: {
readonly nodes: NodeType[]
}
}
type GqlRes = GetNodesTypeOne | GetNodesTypeTwo
const resultOne:GqlRes = {
getNodesTypeOne: {
nodes: [ "test" ]
}
}
const resultTwo:GqlRes = {
getNodesTypeTwo: {
nodes: [ "test" ]
}
}
const items = data?.getNodesTypeOne.nodes.map(...)
const nodes = "getNodesTypeOne" in data
? data?.getNodesTypeOne?.nodes
: data?.getNodesTypeTwo?.nodes
const items = nodes.map(...);
const nodes = blockData.myType === 'type-one'
? (data as GetNodesTypeOne)?.getNodesTypeOne?.nodes
: (data as GetNodesTypeTwo)?.getNodesTypeTwo?.nodes
const items = nodes.map(...);
const useQueryOne = blockData.myType === 'type-one';
const { data: nodesOne } = useQuery<NodesOneGqlRes, NodesArgs>(NODES_TYPE_ONE,
{
variables: {
customKey: metadata.customKey || 0,
},
errorPolicy: 'all',
notifyOnNetworkStatusChange: true,
ssr: false,
skip: !useQueryOne
}
);
const { data: nodesTwo } = useQuery<NodesTwoGqlRes, NodesArgs>(NODES_TYPE_TWO,
{
variables: {
customKey: metadata.customKey || 0,
},
errorPolicy: 'all',
notifyOnNetworkStatusChange: true,
ssr: false,
skip: useQueryOne
}
);
const nodes = useQueryOne
? nodesOne?.getNodesTypeOne?.nodes
: nodesTwo?.getNodesTypeTwo?.nodes;
const items = (nodes || []).map(...);
-----------------------
// I don't know what NodeType is so I'm just using a string for this example
type NodeType = string
interface GetNodesTypeOne {
readonly getNodesTypeOne: {
readonly nodes: NodeType[]
}
}
interface GetNodesTypeTwo {
readonly getNodesTypeTwo: {
readonly nodes: NodeType[]
}
}
type GqlRes = GetNodesTypeOne | GetNodesTypeTwo
const resultOne:GqlRes = {
getNodesTypeOne: {
nodes: [ "test" ]
}
}
const resultTwo:GqlRes = {
getNodesTypeTwo: {
nodes: [ "test" ]
}
}
const items = data?.getNodesTypeOne.nodes.map(...)
const nodes = "getNodesTypeOne" in data
? data?.getNodesTypeOne?.nodes
: data?.getNodesTypeTwo?.nodes
const items = nodes.map(...);
const nodes = blockData.myType === 'type-one'
? (data as GetNodesTypeOne)?.getNodesTypeOne?.nodes
: (data as GetNodesTypeTwo)?.getNodesTypeTwo?.nodes
const items = nodes.map(...);
const useQueryOne = blockData.myType === 'type-one';
const { data: nodesOne } = useQuery<NodesOneGqlRes, NodesArgs>(NODES_TYPE_ONE,
{
variables: {
customKey: metadata.customKey || 0,
},
errorPolicy: 'all',
notifyOnNetworkStatusChange: true,
ssr: false,
skip: !useQueryOne
}
);
const { data: nodesTwo } = useQuery<NodesTwoGqlRes, NodesArgs>(NODES_TYPE_TWO,
{
variables: {
customKey: metadata.customKey || 0,
},
errorPolicy: 'all',
notifyOnNetworkStatusChange: true,
ssr: false,
skip: useQueryOne
}
);
const nodes = useQueryOne
? nodesOne?.getNodesTypeOne?.nodes
: nodesTwo?.getNodesTypeTwo?.nodes;
const items = (nodes || []).map(...);
-----------------------
const [invokeQuery1, {loading, data, error}] = useLazyQuery<>(...)
const [invokeQuery2, {loading2, data2, error2}] = useLazyQuery<>(...)
// Run the query every time the condition changes.
useEffect(() => {
if (condition) {
invokeQuery1()
} else {
invokeQuery2()
}
}, [condition])
// Return the desired conditional daa
const {nodes} = useMemo(() => {
return condition ? data?.getNodesTypeOne : data2?.getNodesTypeTwo
} ,
[condition])
const isNodeTypeOne = (t: unknown): t is GetNodeTypeOne => {
return (t as GetNodeTypeOne).getNodesTypeOne !== undefined;
};
const { nodes } = isNodeTypeOne(data)
? data?.getNodesTypeOne
: data?.getNodesTypeTwo;
const items = nodes.map((val) => {
// Your mapping here
})
-----------------------
const [invokeQuery1, {loading, data, error}] = useLazyQuery<>(...)
const [invokeQuery2, {loading2, data2, error2}] = useLazyQuery<>(...)
// Run the query every time the condition changes.
useEffect(() => {
if (condition) {
invokeQuery1()
} else {
invokeQuery2()
}
}, [condition])
// Return the desired conditional daa
const {nodes} = useMemo(() => {
return condition ? data?.getNodesTypeOne : data2?.getNodesTypeTwo
} ,
[condition])
const isNodeTypeOne = (t: unknown): t is GetNodeTypeOne => {
return (t as GetNodeTypeOne).getNodesTypeOne !== undefined;
};
const { nodes } = isNodeTypeOne(data)
? data?.getNodesTypeOne
: data?.getNodesTypeTwo;
const items = nodes.map((val) => {
// Your mapping here
})
QUESTION
Vue 3, GraphQL, Apollo - How to re-render query when cache changes?
Asked 2022-Mar-31 at 11:33I would like to know how to build Vue 3 Apollo apps with queries and mutations. I'm familiar with react useQuery
hook. It re-renders the component whenever the cached data has been changed (by mutations).
I have tried:
In all cases it just loads the data once and doesnt react to cache data changes.
I undestand that I can build own setup by Apollo client or refetch the queries. I can even invalidate components by its keys. This is not really as elegant as the React useQuery
hook is.
I was curious whether there is any ready-made solution and the best practice for smooth graphql operations in Vue 3.
ANSWER
Answered 2022-Mar-31 at 11:33I have misconfigured the schema and cache update. So the answer is that it works well.
For example:
<template>
<div v-if="loading">...loading</div>
<div v-else-if="error">{{ error.message }}</div>
<div v-else>{{value}}</div>
</template>
<script setup lang="ts">
import gql from "graphql-tag";
import { GetValueQuery } from "./ValueComponent.generated";
import { useQuery, useResult } from "@vue/apollo-composable";
const GetValue = gql`
query getValue {
value
}
`;
function useGetValue() {
const { result, loading, error } =
useQuery<GetValueQuery>(GetValue);
const value = useResult(result, null, (data) => data.value);
return { value, loading, error };
}
const { value, loading, error } = useGetScans();
</script>
Works the described way - the template is re-rendered once data cache changed (by a mutation with the proper result set or by its update
function)
So it is not valid question, the bug was in the implementation of cache policy on my side.
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