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156 lines
8.1 KiB
156 lines
8.1 KiB
import { __assign, __rest } from "tslib"; |
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import { invariant } from "../../utilities/globals/index.js"; |
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import { ApolloLink } from "../core/index.js"; |
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import { Observable, hasDirectives } from "../../utilities/index.js"; |
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import { serializeFetchParameter } from "./serializeFetchParameter.js"; |
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import { selectURI } from "./selectURI.js"; |
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import { handleError, readMultipartBody, parseAndCheckHttpResponse, } from "./parseAndCheckHttpResponse.js"; |
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import { checkFetcher } from "./checkFetcher.js"; |
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import { selectHttpOptionsAndBodyInternal, defaultPrinter, fallbackHttpConfig, } from "./selectHttpOptionsAndBody.js"; |
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import { rewriteURIForGET } from "./rewriteURIForGET.js"; |
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import { fromError, filterOperationVariables } from "../utils/index.js"; |
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import { maybe, getMainDefinition, removeClientSetsFromDocument, } from "../../utilities/index.js"; |
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var backupFetch = maybe(function () { return fetch; }); |
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export var createHttpLink = function (linkOptions) { |
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if (linkOptions === void 0) { linkOptions = {}; } |
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var _a = linkOptions.uri, uri = _a === void 0 ? "/graphql" : _a, |
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// use default global fetch if nothing passed in |
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preferredFetch = linkOptions.fetch, _b = linkOptions.print, print = _b === void 0 ? defaultPrinter : _b, includeExtensions = linkOptions.includeExtensions, preserveHeaderCase = linkOptions.preserveHeaderCase, useGETForQueries = linkOptions.useGETForQueries, _c = linkOptions.includeUnusedVariables, includeUnusedVariables = _c === void 0 ? false : _c, requestOptions = __rest(linkOptions, ["uri", "fetch", "print", "includeExtensions", "preserveHeaderCase", "useGETForQueries", "includeUnusedVariables"]); |
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if (globalThis.__DEV__ !== false) { |
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// Make sure at least one of preferredFetch, window.fetch, or backupFetch is |
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// defined, so requests won't fail at runtime. |
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checkFetcher(preferredFetch || backupFetch); |
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} |
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var linkConfig = { |
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http: { includeExtensions: includeExtensions, preserveHeaderCase: preserveHeaderCase }, |
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options: requestOptions.fetchOptions, |
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credentials: requestOptions.credentials, |
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headers: requestOptions.headers, |
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}; |
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return new ApolloLink(function (operation) { |
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var chosenURI = selectURI(operation, uri); |
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var context = operation.getContext(); |
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// `apollographql-client-*` headers are automatically set if a |
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// `clientAwareness` object is found in the context. These headers are |
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// set first, followed by the rest of the headers pulled from |
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// `context.headers`. If desired, `apollographql-client-*` headers set by |
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// the `clientAwareness` object can be overridden by |
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// `apollographql-client-*` headers set in `context.headers`. |
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var clientAwarenessHeaders = {}; |
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if (context.clientAwareness) { |
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var _a = context.clientAwareness, name_1 = _a.name, version = _a.version; |
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if (name_1) { |
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clientAwarenessHeaders["apollographql-client-name"] = name_1; |
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} |
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if (version) { |
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clientAwarenessHeaders["apollographql-client-version"] = version; |
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} |
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} |
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var contextHeaders = __assign(__assign({}, clientAwarenessHeaders), context.headers); |
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var contextConfig = { |
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http: context.http, |
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options: context.fetchOptions, |
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credentials: context.credentials, |
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headers: contextHeaders, |
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}; |
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if (hasDirectives(["client"], operation.query)) { |
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var transformedQuery = removeClientSetsFromDocument(operation.query); |
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if (!transformedQuery) { |
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return fromError(new Error("HttpLink: Trying to send a client-only query to the server. To send to the server, ensure a non-client field is added to the query or set the `transformOptions.removeClientFields` option to `true`.")); |
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} |
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operation.query = transformedQuery; |
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} |
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//uses fallback, link, and then context to build options |
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var _b = selectHttpOptionsAndBodyInternal(operation, print, fallbackHttpConfig, linkConfig, contextConfig), options = _b.options, body = _b.body; |
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if (body.variables && !includeUnusedVariables) { |
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body.variables = filterOperationVariables(body.variables, operation.query); |
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} |
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var controller; |
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if (!options.signal && typeof AbortController !== "undefined") { |
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controller = new AbortController(); |
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options.signal = controller.signal; |
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} |
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// If requested, set method to GET if there are no mutations. |
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var definitionIsMutation = function (d) { |
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return d.kind === "OperationDefinition" && d.operation === "mutation"; |
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}; |
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var definitionIsSubscription = function (d) { |
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return d.kind === "OperationDefinition" && d.operation === "subscription"; |
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}; |
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var isSubscription = definitionIsSubscription(getMainDefinition(operation.query)); |
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// does not match custom directives beginning with @defer |
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var hasDefer = hasDirectives(["defer"], operation.query); |
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if (useGETForQueries && |
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!operation.query.definitions.some(definitionIsMutation)) { |
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options.method = "GET"; |
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} |
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if (hasDefer || isSubscription) { |
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options.headers = options.headers || {}; |
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var acceptHeader = "multipart/mixed;"; |
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// Omit defer-specific headers if the user attempts to defer a selection |
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// set on a subscription and log a warning. |
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if (isSubscription && hasDefer) { |
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globalThis.__DEV__ !== false && invariant.warn(38); |
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} |
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if (isSubscription) { |
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acceptHeader += |
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"boundary=graphql;subscriptionSpec=1.0,application/json"; |
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} |
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else if (hasDefer) { |
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acceptHeader += "deferSpec=20220824,application/json"; |
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} |
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options.headers.accept = acceptHeader; |
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} |
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if (options.method === "GET") { |
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var _c = rewriteURIForGET(chosenURI, body), newURI = _c.newURI, parseError = _c.parseError; |
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if (parseError) { |
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return fromError(parseError); |
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} |
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chosenURI = newURI; |
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} |
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else { |
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try { |
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options.body = serializeFetchParameter(body, "Payload"); |
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} |
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catch (parseError) { |
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return fromError(parseError); |
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} |
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} |
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return new Observable(function (observer) { |
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// Prefer linkOptions.fetch (preferredFetch) if provided, and otherwise |
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// fall back to the *current* global window.fetch function (see issue |
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// #7832), or (if all else fails) the backupFetch function we saved when |
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// this module was first evaluated. This last option protects against the |
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// removal of window.fetch, which is unlikely but not impossible. |
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var currentFetch = preferredFetch || maybe(function () { return fetch; }) || backupFetch; |
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var observerNext = observer.next.bind(observer); |
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currentFetch(chosenURI, options) |
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.then(function (response) { |
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var _a; |
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operation.setContext({ response: response }); |
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var ctype = (_a = response.headers) === null || _a === void 0 ? void 0 : _a.get("content-type"); |
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if (ctype !== null && /^multipart\/mixed/i.test(ctype)) { |
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return readMultipartBody(response, observerNext); |
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} |
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else { |
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return parseAndCheckHttpResponse(operation)(response).then(observerNext); |
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} |
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}) |
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.then(function () { |
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controller = undefined; |
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observer.complete(); |
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}) |
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.catch(function (err) { |
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controller = undefined; |
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handleError(err, observer); |
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}); |
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return function () { |
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// XXX support canceling this request |
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// https://developers.google.com/web/updates/2017/09/abortable-fetch |
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if (controller) |
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controller.abort(); |
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}; |
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}); |
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}); |
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}; |
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//# sourceMappingURL=createHttpLink.js.map
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