43 lines
1.1 KiB
Plaintext
43 lines
1.1 KiB
Plaintext
/**
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* Copyright (c) Facebook, Inc. and its affiliates.
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*
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* This source code is licensed under the MIT license found in the
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* LICENSE file in the root directory of this source tree.
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*
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* @flow strict-local
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* @format
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*/
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// flowlint ambiguous-object-type:error
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'use strict';
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const invariant = require('invariant');
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const stableCopy = require('./stableCopy');
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import type {RequestParameters} from './RelayConcreteNode';
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import type {Variables} from './RelayRuntimeTypes';
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export type RequestIdentifier = string;
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/**
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* Returns a stable identifier for the given pair of `RequestParameters` +
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* variables.
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*/
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function getRequestIdentifier(
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parameters: RequestParameters,
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variables: Variables,
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): RequestIdentifier {
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const requestID =
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parameters.cacheID != null ? parameters.cacheID : parameters.id;
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invariant(
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requestID != null,
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'getRequestIdentifier: Expected request `%s` to have either a ' +
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'valid `id` or `cacheID` property',
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parameters.name,
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);
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return requestID + JSON.stringify(stableCopy(variables));
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}
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module.exports = getRequestIdentifier;
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