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77 lines
3.5 KiB
77 lines
3.5 KiB
4 months ago
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// This file is adapted from the graphql-ws npm package:
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// https://github.com/enisdenjo/graphql-ws
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//
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// Most of the file comes from that package's README; some other parts (such as
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// isLikeCloseEvent) come from its source.
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//
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// Here's the license of the original code:
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//
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// The MIT License (MIT)
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//
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// Copyright (c) 2020-2021 Denis Badurina
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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// THE SOFTWARE.
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import { __assign, __extends } from "tslib";
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import { print } from "../../utilities/index.js";
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import { ApolloLink } from "../core/index.js";
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import { isNonNullObject, Observable } from "../../utilities/index.js";
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import { ApolloError } from "../../errors/index.js";
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// https://developer.mozilla.org/en-US/docs/Web/API/WebSocket/close_event
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function isLikeCloseEvent(val) {
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return isNonNullObject(val) && "code" in val && "reason" in val;
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}
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// https://developer.mozilla.org/en-US/docs/Web/API/WebSocket/error_event
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function isLikeErrorEvent(err) {
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var _a;
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return isNonNullObject(err) && ((_a = err.target) === null || _a === void 0 ? void 0 : _a.readyState) === WebSocket.CLOSED;
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}
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var GraphQLWsLink = /** @class */ (function (_super) {
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__extends(GraphQLWsLink, _super);
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function GraphQLWsLink(client) {
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var _this = _super.call(this) || this;
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_this.client = client;
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return _this;
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}
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GraphQLWsLink.prototype.request = function (operation) {
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var _this = this;
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return new Observable(function (observer) {
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return _this.client.subscribe(__assign(__assign({}, operation), { query: print(operation.query) }), {
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next: observer.next.bind(observer),
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complete: observer.complete.bind(observer),
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error: function (err) {
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if (err instanceof Error) {
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return observer.error(err);
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}
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var likeClose = isLikeCloseEvent(err);
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if (likeClose || isLikeErrorEvent(err)) {
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return observer.error(
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// reason will be available on clean closes
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new Error("Socket closed".concat(likeClose ? " with event ".concat(err.code) : "").concat(likeClose ? " ".concat(err.reason) : "")));
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}
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return observer.error(new ApolloError({
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graphQLErrors: Array.isArray(err) ? err : [err],
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}));
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},
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});
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});
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};
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return GraphQLWsLink;
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}(ApolloLink));
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export { GraphQLWsLink };
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//# sourceMappingURL=index.js.map
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