Odoo GraphQL Subscription using Node, Express JS for Sample
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import { __assign } from "tslib";
import * as React from "rehackt";
import { mergeOptions } from "../../utilities/index.js";
import { useInternalState } from "./useQuery.js";
import { useApolloClient } from "./useApolloClient.js";
// The following methods, when called will execute the query, regardless of
// whether the useLazyQuery execute function was called before.
var EAGER_METHODS = [
"refetch",
"reobserve",
"fetchMore",
"updateQuery",
"startPolling",
"subscribeToMore",
];
/**
* A hook for imperatively executing queries in an Apollo application, e.g. in response to user interaction.
*
* > Refer to the [Queries - Manual execution with useLazyQuery](https://www.apollographql.com/docs/react/data/queries#manual-execution-with-uselazyquery) section for a more in-depth overview of `useLazyQuery`.
*
* @example
* ```jsx
* import { gql, useLazyQuery } from "@apollo/client";
*
* const GET_GREETING = gql`
* query GetGreeting($language: String!) {
* greeting(language: $language) {
* message
* }
* }
* `;
*
* function Hello() {
* const [loadGreeting, { called, loading, data }] = useLazyQuery(
* GET_GREETING,
* { variables: { language: "english" } }
* );
* if (called && loading) return <p>Loading ...</p>
* if (!called) {
* return <button onClick={() => loadGreeting()}>Load greeting</button>
* }
* return <h1>Hello {data.greeting.message}!</h1>;
* }
* ```
* @since 3.0.0
*
* @param query - A GraphQL query document parsed into an AST by `gql`.
* @param options - Default options to control how the query is executed.
* @returns A tuple in the form of `[execute, result]`
*/
export function useLazyQuery(query, options) {
var _a;
var execOptionsRef = React.useRef();
var optionsRef = React.useRef();
var queryRef = React.useRef();
var merged = mergeOptions(options, execOptionsRef.current || {});
var document = (_a = merged === null || merged === void 0 ? void 0 : merged.query) !== null && _a !== void 0 ? _a : query;
// Use refs to track options and the used query to ensure the `execute`
// function remains referentially stable between renders.
optionsRef.current = options;
queryRef.current = document;
var internalState = useInternalState(useApolloClient(options && options.client), document);
var useQueryResult = internalState.useQuery(__assign(__assign({}, merged), { skip: !execOptionsRef.current }));
var initialFetchPolicy = useQueryResult.observable.options.initialFetchPolicy ||
internalState.getDefaultFetchPolicy();
var result = Object.assign(useQueryResult, {
called: !!execOptionsRef.current,
});
// We use useMemo here to make sure the eager methods have a stable identity.
var eagerMethods = React.useMemo(function () {
var eagerMethods = {};
var _loop_1 = function (key) {
var method = result[key];
eagerMethods[key] = function () {
if (!execOptionsRef.current) {
execOptionsRef.current = Object.create(null);
// Only the first time populating execOptionsRef.current matters here.
internalState.forceUpdateState();
}
// @ts-expect-error this is just too generic to type
return method.apply(this, arguments);
};
};
for (var _i = 0, EAGER_METHODS_1 = EAGER_METHODS; _i < EAGER_METHODS_1.length; _i++) {
var key = EAGER_METHODS_1[_i];
_loop_1(key);
}
return eagerMethods;
}, []);
Object.assign(result, eagerMethods);
var execute = React.useCallback(function (executeOptions) {
execOptionsRef.current =
executeOptions ? __assign(__assign({}, executeOptions), { fetchPolicy: executeOptions.fetchPolicy || initialFetchPolicy }) : {
fetchPolicy: initialFetchPolicy,
};
var options = mergeOptions(optionsRef.current, __assign({ query: queryRef.current }, execOptionsRef.current));
var promise = internalState
.executeQuery(__assign(__assign({}, options), { skip: false }))
.then(function (queryResult) { return Object.assign(queryResult, eagerMethods); });
// Because the return value of `useLazyQuery` is usually floated, we need
// to catch the promise to prevent unhandled rejections.
promise.catch(function () { });
return promise;
}, []);
return [execute, result];
}
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