1 | import { __rest, __assign, __extends } from 'tslib';
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2 | import { ApolloLink, fromError, Observable } from 'apollo-link';
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3 | import { checkFetcher, selectURI, selectHttpOptionsAndBody, fallbackHttpConfig, createSignalIfSupported, serializeFetchParameter, parseAndCheckHttpResponse } from 'apollo-link-http-common';
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4 |
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5 | var createHttpLink = function (linkOptions) {
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6 | if (linkOptions === void 0) { linkOptions = {}; }
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7 | var _a = linkOptions.uri, uri = _a === void 0 ? '/graphql' : _a, fetcher = linkOptions.fetch, includeExtensions = linkOptions.includeExtensions, useGETForQueries = linkOptions.useGETForQueries, requestOptions = __rest(linkOptions, ["uri", "fetch", "includeExtensions", "useGETForQueries"]);
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8 | checkFetcher(fetcher);
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9 | if (!fetcher) {
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10 | fetcher = fetch;
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11 | }
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12 | var linkConfig = {
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13 | http: { includeExtensions: includeExtensions },
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14 | options: requestOptions.fetchOptions,
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15 | credentials: requestOptions.credentials,
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16 | headers: requestOptions.headers,
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17 | };
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18 | return new ApolloLink(function (operation) {
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19 | var chosenURI = selectURI(operation, uri);
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20 | var context = operation.getContext();
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21 | var clientAwarenessHeaders = {};
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22 | if (context.clientAwareness) {
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23 | var _a = context.clientAwareness, name_1 = _a.name, version = _a.version;
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24 | if (name_1) {
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25 | clientAwarenessHeaders['apollographql-client-name'] = name_1;
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26 | }
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27 | if (version) {
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28 | clientAwarenessHeaders['apollographql-client-version'] = version;
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29 | }
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30 | }
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31 | var contextHeaders = __assign({}, clientAwarenessHeaders, context.headers);
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32 | var contextConfig = {
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33 | http: context.http,
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34 | options: context.fetchOptions,
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35 | credentials: context.credentials,
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36 | headers: contextHeaders,
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37 | };
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38 | var _b = selectHttpOptionsAndBody(operation, fallbackHttpConfig, linkConfig, contextConfig), options = _b.options, body = _b.body;
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39 | var controller;
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40 | if (!options.signal) {
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41 | var _c = createSignalIfSupported(), _controller = _c.controller, signal = _c.signal;
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42 | controller = _controller;
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43 | if (controller)
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44 | options.signal = signal;
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45 | }
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46 | var definitionIsMutation = function (d) {
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47 | return d.kind === 'OperationDefinition' && d.operation === 'mutation';
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48 | };
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49 | if (useGETForQueries &&
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50 | !operation.query.definitions.some(definitionIsMutation)) {
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51 | options.method = 'GET';
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52 | }
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53 | if (options.method === 'GET') {
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54 | var _d = rewriteURIForGET(chosenURI, body), newURI = _d.newURI, parseError = _d.parseError;
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55 | if (parseError) {
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56 | return fromError(parseError);
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57 | }
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58 | chosenURI = newURI;
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59 | }
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60 | else {
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61 | try {
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62 | options.body = serializeFetchParameter(body, 'Payload');
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63 | }
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64 | catch (parseError) {
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65 | return fromError(parseError);
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66 | }
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67 | }
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68 | return new Observable(function (observer) {
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69 | fetcher(chosenURI, options)
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70 | .then(function (response) {
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71 | operation.setContext({ response: response });
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72 | return response;
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73 | })
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74 | .then(parseAndCheckHttpResponse(operation))
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75 | .then(function (result) {
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76 | observer.next(result);
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77 | observer.complete();
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78 | return result;
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79 | })
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80 | .catch(function (err) {
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81 | if (err.name === 'AbortError')
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82 | return;
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83 | if (err.result && err.result.errors && err.result.data) {
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84 | observer.next(err.result);
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85 | }
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86 | observer.error(err);
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87 | });
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88 | return function () {
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89 | if (controller)
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90 | controller.abort();
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91 | };
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92 | });
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93 | });
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94 | };
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95 | function rewriteURIForGET(chosenURI, body) {
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96 | var queryParams = [];
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97 | var addQueryParam = function (key, value) {
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98 | queryParams.push(key + "=" + encodeURIComponent(value));
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99 | };
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100 | if ('query' in body) {
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101 | addQueryParam('query', body.query);
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102 | }
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103 | if (body.operationName) {
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104 | addQueryParam('operationName', body.operationName);
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105 | }
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106 | if (body.variables) {
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107 | var serializedVariables = void 0;
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108 | try {
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109 | serializedVariables = serializeFetchParameter(body.variables, 'Variables map');
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110 | }
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111 | catch (parseError) {
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112 | return { parseError: parseError };
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113 | }
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114 | addQueryParam('variables', serializedVariables);
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115 | }
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116 | if (body.extensions) {
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117 | var serializedExtensions = void 0;
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118 | try {
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119 | serializedExtensions = serializeFetchParameter(body.extensions, 'Extensions map');
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120 | }
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121 | catch (parseError) {
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122 | return { parseError: parseError };
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123 | }
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124 | addQueryParam('extensions', serializedExtensions);
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125 | }
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126 | var fragment = '', preFragment = chosenURI;
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127 | var fragmentStart = chosenURI.indexOf('#');
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128 | if (fragmentStart !== -1) {
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129 | fragment = chosenURI.substr(fragmentStart);
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130 | preFragment = chosenURI.substr(0, fragmentStart);
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131 | }
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132 | var queryParamsPrefix = preFragment.indexOf('?') === -1 ? '?' : '&';
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133 | var newURI = preFragment + queryParamsPrefix + queryParams.join('&') + fragment;
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134 | return { newURI: newURI };
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135 | }
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136 | var HttpLink = (function (_super) {
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137 | __extends(HttpLink, _super);
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138 | function HttpLink(opts) {
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139 | return _super.call(this, createHttpLink(opts).request) || this;
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140 | }
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141 | return HttpLink;
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142 | }(ApolloLink));
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143 |
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144 | export { createHttpLink, HttpLink };
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145 |
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