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node_modules/apollo-link/lib/linkUtils.js

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+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+var tslib_1 = require("tslib");
+var zen_observable_ts_1 = tslib_1.__importDefault(require("zen-observable-ts"));
+var apollo_utilities_1 = require("apollo-utilities");
+exports.getOperationName = apollo_utilities_1.getOperationName;
+var ts_invariant_1 = require("ts-invariant");
+function validateOperation(operation) {
+    var OPERATION_FIELDS = [
+        'query',
+        'operationName',
+        'variables',
+        'extensions',
+        'context',
+    ];
+    for (var _i = 0, _a = Object.keys(operation); _i < _a.length; _i++) {
+        var key = _a[_i];
+        if (OPERATION_FIELDS.indexOf(key) < 0) {
+            throw new ts_invariant_1.InvariantError("illegal argument: " + key);
+        }
+    }
+    return operation;
+}
+exports.validateOperation = validateOperation;
+var LinkError = (function (_super) {
+    tslib_1.__extends(LinkError, _super);
+    function LinkError(message, link) {
+        var _this = _super.call(this, message) || this;
+        _this.link = link;
+        return _this;
+    }
+    return LinkError;
+}(Error));
+exports.LinkError = LinkError;
+function isTerminating(link) {
+    return link.request.length <= 1;
+}
+exports.isTerminating = isTerminating;
+function toPromise(observable) {
+    var completed = false;
+    return new Promise(function (resolve, reject) {
+        observable.subscribe({
+            next: function (data) {
+                if (completed) {
+                    ts_invariant_1.invariant.warn("Promise Wrapper does not support multiple results from Observable");
+                }
+                else {
+                    completed = true;
+                    resolve(data);
+                }
+            },
+            error: reject,
+        });
+    });
+}
+exports.toPromise = toPromise;
+exports.makePromise = toPromise;
+function fromPromise(promise) {
+    return new zen_observable_ts_1.default(function (observer) {
+        promise
+            .then(function (value) {
+            observer.next(value);
+            observer.complete();
+        })
+            .catch(observer.error.bind(observer));
+    });
+}
+exports.fromPromise = fromPromise;
+function fromError(errorValue) {
+    return new zen_observable_ts_1.default(function (observer) {
+        observer.error(errorValue);
+    });
+}
+exports.fromError = fromError;
+function transformOperation(operation) {
+    var transformedOperation = {
+        variables: operation.variables || {},
+        extensions: operation.extensions || {},
+        operationName: operation.operationName,
+        query: operation.query,
+    };
+    if (!transformedOperation.operationName) {
+        transformedOperation.operationName =
+            typeof transformedOperation.query !== 'string'
+                ? apollo_utilities_1.getOperationName(transformedOperation.query)
+                : '';
+    }
+    return transformedOperation;
+}
+exports.transformOperation = transformOperation;
+function createOperation(starting, operation) {
+    var context = tslib_1.__assign({}, starting);
+    var setContext = function (next) {
+        if (typeof next === 'function') {
+            context = tslib_1.__assign({}, context, next(context));
+        }
+        else {
+            context = tslib_1.__assign({}, context, next);
+        }
+    };
+    var getContext = function () { return (tslib_1.__assign({}, context)); };
+    Object.defineProperty(operation, 'setContext', {
+        enumerable: false,
+        value: setContext,
+    });
+    Object.defineProperty(operation, 'getContext', {
+        enumerable: false,
+        value: getContext,
+    });
+    Object.defineProperty(operation, 'toKey', {
+        enumerable: false,
+        value: function () { return getKey(operation); },
+    });
+    return operation;
+}
+exports.createOperation = createOperation;
+function getKey(operation) {
+    var query = operation.query, variables = operation.variables, operationName = operation.operationName;
+    return JSON.stringify([operationName, query, variables]);
+}
+exports.getKey = getKey;
+//# sourceMappingURL=linkUtils.js.map