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27 <li class="nav-link nav-home-link"><a href="index.html">Home</a></li><li class="nav-heading">Classes</li><li class="nav-heading"><span class="nav-item-type type-class">C</span><span class="nav-item-name"><a href="AwaitingPromiseError.html">AwaitingPromiseError</a></span></li><li class="nav-item"><span class="nav-item-type type-function">F</span><span class="nav-item-name"><a href="AwaitingPromiseError.html#%25E2%258C%25BE%25E2%25A0%2580asyncFn">⌾⠀asyncFn</a></span></li><li class="nav-item"><span class="nav-item-type type-function">F</span><span class="nav-item-name"><a href="AwaitingPromiseError.html#%25E2%258C%25BE%25E2%25A0%2580setPromise">⌾⠀setPromise</a></span></li><li class="nav-heading"><span class="nav-item-type type-class">C</span><span class="nav-item-name"><a href="AwaitingPromiseError_exports.AwaitingPromiseError.html">AwaitingPromiseError</a></span></li><li class="nav-item"><span class="nav-item-type type-function">F</span><span class="nav-item-name"><a href="AwaitingPromiseError_exports.AwaitingPromiseError.html#setPromise">setPromise</a></span></li><li class="nav-heading"><span class="nav-item-type type-class">C</span><span class="nav-item-name"><a href="Deferred_exports.Deferred.html">Deferred</a></span></li><li class="nav-heading"><span class="nav-item-type type-class">C</span><span class="nav-item-name"><a href="DirectTypeAdd.html">DirectTypeAdd</a></span></li><li class="nav-heading"><span class="nav-item-type type-class">C</span><span class="nav-item-name"><a href="FunctionExecutionError_FunctionExecutionError.html">FunctionExecutionError</a></span></li><li class="nav-heading"><span class="nav-item-type type-class">C</span><span class="nav-item-name"><a href="GQLBase.html">GQLBase</a></span></li><li class="nav-item"><span class="nav-item-type type-function">F</span><span class="nav-item-name"><a href="GQLBase.html#.apiDocs">apiDocs</a></span></li><li class="nav-item"><span class="nav-item-type type-function">F</span><span class="nav-item-name"><a href="GQLBase.html#.%25E2%258C%25BE%25E2%25A0%2580getMergedRoot">⌾⠀getMergedRoot</a></span></li><li class="nav-item"><span class="nav-item-type type-function">F</span><span class="nav-item-name"><a href="GQLBase.html#.%25E2%258C%25BE%25E2%25A0%2580getProp">⌾⠀getProp</a></span></li><li class="nav-item"><span class="nav-item-type type-function">F</span><span class="nav-item-name"><a href="GQLBase.html#.%25E2%258C%25BE%25E2%25A0%2580getResolver">⌾⠀getResolver</a></span></li><li class="nav-item"><span class="nav-item-type type-function">F</span><span class="nav-item-name"><a href="GQLBase.html#.%25E2%258C%25BE%25E2%25A0%2580IDLFilePath">⌾⠀IDLFilePath</a></span></li><li class="nav-item"><span class="nav-item-type type-function">F</span><span class="nav-item-name"><a href="GQLBase.html#.%25E2%258C%25BE%25E2%25A0%2580MUTATORS">⌾⠀MUTATORS</a></span></li><li class="nav-item"><span class="nav-item-type type-function">F</span><span class="nav-item-name"><a href="GQLBase.html#.%25E2%258C%25BE%25E2%25A0%2580RESOLVERS">⌾⠀RESOLVERS</a></span></li><li class="nav-item"><span class="nav-item-type type-function">F</span><span class="nav-item-name"><a href="GQLBase.html#.%25E2%258C%25BE%25E2%25A0%2580setupModel">⌾⠀setupModel</a></span></li><li class="nav-item"><span class="nav-item-type type-function">F</span><span class="nav-item-name"><a href="GQLBase.html#.%25E2%25AC%2587%25EF%25B8%258E%25E2%25A0%2580handler">⬇︎⠀handler</a></span></li><li class="nav-item"><span class="nav-item-type type-function">F</span><span class="nav-item-name"><a href="GQLBase.html#.%25E2%25AC%2587%25EF%25B8%258E%25E2%25A0%2580SCHEMA">⬇︎⠀SCHEMA</a></span></li><li class="nav-item"><span class="nav-item-type type-function">F</span><span class="nav-item-name"><a href="GQLBase.html#%25E2%258C%25BE%25E2%25A0%2580applyAutoProps">⌾⠀applyAutoProps</a></span></li><li class="nav-item"><span class="nav-item-type type-function">F</span><span class="nav-item-name"><a href="GQLBase.html#%25E2%258C%25BE%25E2%25A0%2580callProp">⌾⠀callProp</a></span></li><li class="nav-item"><span class="nav-item-type type-function">F</span><span class="nav-item-name"><a href="GQLBase.html#%25E2%258C%25BE%25E2%25A0%2580extendModel">⌾⠀extendModel</a></span></li><li class="nav-item"><span class="nav-item-type type-function">F</span><span class="nav-item-name"><a href="GQLBase.html#%25E2%258C%25BE%25E2%25A0%2580getModel">⌾⠀getModel</a></span></li><li class="nav-item"><span class="nav-item-type type-function">F</span><span class="nav-item-name"><a href="GQLBase.html#%25E2%258C%25BE%25E2%25A0%2580getProp">⌾⠀getProp</a></span></li><li class="nav-item"><span class="nav-item-type type-function">F</span><span class="nav-item-name"><a href="GQLBase.html#%25E2%258C%25BE%25E2%25A0%2580getResolver">⌾⠀getResolver</a></span></li><li class="nav-item"><span class="nav-item-type type-function">F</span><span class="nav-item-name"><a href="GQLBase.html#%25E2%258C%25BE%25E2%25A0%2580setModel">⌾⠀setModel</a></span></li><li class="nav-item"><span class="nav-item-type type-function">F</span><span class="nav-item-name"><a href="GQLBase.html#%25E2%25AC%2586%25EF%25B8%258E%25E2%25A0%2580requestData">⬆︎⠀requestData</a></span></li><li class="nav-item"><span class="nav-item-type type-function">F</span><span class="nav-item-name"><a href="GQLBase.html#%25E2%25AC%2587%25EF%25B8%258E%25E2%25A0%2580requestData">⬇︎⠀requestData</a></span></li><li class="nav-item"><span class="nav-item-type type-function">F</span><span class="nav-item-name"><a href="GQLBase.html#~deleteProperty">deleteProperty</a></span></li><li class="nav-item"><span class="nav-item-type type-function">F</span><span class="nav-item-name"><a href="GQLBase.html#~set">set</a></span></li><li class="nav-heading"><span class="nav-item-type type-class">C</span><span class="nav-item-name"><a href="GQLBase.%25E2%258E%2586%25E2%25A0%2580constructor.html">⎆⠀constructor</a></span></li><li class="nav-heading"><span class="nav-item-type type-class">C</span><span class="nav-item-name"><a href="GQLEnum.html">GQLEnum</a></span></li><li class="nav-item"><span class="nav-item-type type-function">F</span><span class="nav-item-name"><a href="GQLEnum.html#..get">.get</a></span></li><li class="nav-item"><span class="nav-item-type type-function">F</span><span class="nav-item-name"><a href="GQLEnum.html#..set">.set</a></span></li><li class="nav-item"><span class="nav-item-type type-function">F</span><span class="nav-item-name"><a href="GQLEnum.html#.valueFor">valueFor</a></span></li><li class="nav-item"><span class="nav-item-type type-function">F</span><span class="nav-item-name"><a href="GQLEnum.html#.%25E2%25AC%2587%25EF%25B8%258E%25E2%25A0%2580enums">⬇︎⠀enums</a></span></li><li class="nav-item"><span class="nav-item-type type-function">F</span><span class="nav-item-name"><a href="GQLEnum.html#.%25E2%25AC%2587%25EF%25B8%258E%25E2%25A0%2580name">⬇︎⠀name</a></span></li><li class="nav-item"><span class="nav-item-type type-function">F</span><span class="nav-item-name"><a href="GQLEnum.html#.%25E2%25AC%2587%25EF%25B8%258E%25E2%25A0%2580value">⬇︎⠀value</a></span></li><li class="nav-item"><span class="nav-item-type type-function">F</span><span class="nav-item-name"><a href="GQLEnum.html#.%25E2%25AC%2587%25EF%25B8%258E%25E2%25A0%2580values">⬇︎⠀values</a></span></li><li class="nav-item"><span class="nav-item-type type-function">F</span><span class="nav-item-name"><a href="GQLEnum.html#GenerateEnumsProxyHandler">GenerateEnumsProxyHandler</a></span></li><li class="nav-heading"><span class="nav-item-type type-class">C</span><span class="nav-item-name"><a href="GQLExpressMiddleware.html">GQLExpressMiddleware</a></span></li><li class="nav-item"><span class="nav-item-type type-function">F</span><span class="nav-item-name"><a href="GQLExpressMiddleware.html#.clearCache">clearCache</a></span></li><li class="nav-item"><span class="nav-item-type type-function">F</span><span class="nav-item-name"><a href="GQLExpressMiddleware.html#.%25E2%258C%25BE%25E2%25A0%2580generateSchemaSDL">⌾⠀generateSchemaSDL</a></span></li><li class="nav-item"><span class="nav-item-type type-function">F</span><span class="nav-item-name"><a href="GQLExpressMiddleware.html#astMiddleware">astMiddleware</a></span></li><li class="nav-item"><span class="nav-item-type type-function">F</span><span class="nav-item-name"><a href="GQLExpressMiddleware.html#schemaMiddleware">schemaMiddleware</a></span></li><li class="nav-item"><span class="nav-item-type type-function">F</span><span class="nav-item-name"><a href="GQLExpressMiddleware.html#%25E2%258C%25BE%25E2%25A0%2580customMiddleware">⌾⠀customMiddleware</a></span></li><li class="nav-item"><span class="nav-item-type type-function">F</span><span class="nav-item-name"><a href="GQLExpressMiddleware.html#%25E2%25AC%2587%25EF%25B8%258E%25E2%25A0%2580middleware">⬇︎⠀middleware</a></span></li><li class="nav-item"><span class="nav-item-type type-function">F</span><span class="nav-item-name"><a href="GQLExpressMiddleware.html#%25E2%25AC%2587%25EF%25B8%258E%25E2%25A0%2580middlewareWithoutGraphiQL">⬇︎⠀middlewareWithoutGraphiQL</a></span></li><li class="nav-item"><span class="nav-item-type type-function">F</span><span class="nav-item-name"><a href="GQLExpressMiddleware.html#%25E2%25AC%2587%25EF%25B8%258E%25E2%25A0%2580schema">⬇︎⠀schema</a></span></li><li class="nav-heading"><span class="nav-item-type type-class">C</span><span class="nav-item-name"><a href="GQLExpressMiddleware.%25E2%258E%2586%25E2%25A0%2580constructor.html">⎆⠀constructor</a></span></li><li class="nav-heading"><span class="nav-item-type type-class">C</span><span class="nav-item-name"><a href="GQLInterface.html">GQLInterface</a></span></li><li class="nav-item"><span class="nav-item-type type-function">F</span><span class="nav-item-name"><a href="GQLInterface.html#.%25E2%258C%25BE%25E2%25A0%2580resolveType">⌾⠀resolveType</a></span></li><li class="nav-heading"><span class="nav-item-type type-class">C</span><span class="nav-item-name"><a href="GQLScalar.html">GQLScalar</a></span></li><li class="nav-item"><span class="nav-item-type type-function">F</span><span class="nav-item-name"><a href="GQLScalar.html#.parseLiteral">parseLiteral</a></span></li><li class="nav-item"><span class="nav-item-type type-function">F</span><span class="nav-item-name"><a href="GQLScalar.html#.parseValue">parseValue</a></span></li><li class="nav-item"><span class="nav-item-type type-function">F</span><span class="nav-item-name"><a href="GQLScalar.html#.serialize">serialize</a></span></li><li class="nav-heading"><span class="nav-item-type type-class">C</span><span class="nav-item-name"><a href="IDLFileHandler.html">IDLFileHandler</a></span></li><li class="nav-item"><span class="nav-item-type type-function">F</span><span class="nav-item-name"><a href="IDLFileHandler.html#%25E2%258C%25BE%25E2%25A0%2580getFile">⌾⠀getFile</a></span></li><li class="nav-item"><span class="nav-item-type type-function">F</span><span class="nav-item-name"><a href="IDLFileHandler.html#%25E2%258C%25BE%25E2%25A0%2580getSchema">⌾⠀getSchema</a></span></li><li class="nav-item"><span class="nav-item-type type-function">F</span><span class="nav-item-name"><a href="IDLFileHandler.html#%25E2%258C%25BE%25E2%25A0%2580getSyntaxTree">⌾⠀getSyntaxTree</a></span></li><li class="nav-heading"><span class="nav-item-type type-class">C</span><span class="nav-item-name"><a href="IDLFileHandler.%25E2%258E%2586%25E2%25A0%2580constructor.html">⎆⠀constructor</a></span></li><li class="nav-heading"><span class="nav-item-type type-class">C</span><span class="nav-item-name"><a href="ModuleParser.html">ModuleParser</a></span></li><li class="nav-item"><span class="nav-item-type type-function">F</span><span class="nav-item-name"><a href="ModuleParser.html#.%25E2%258C%25BE%25E2%25A0%2580arrayToPattern">⌾⠀arrayToPattern</a></span></li><li class="nav-item"><span class="nav-item-type type-function">F</span><span class="nav-item-name"><a href="ModuleParser.html#.%25E2%258C%25BE%25E2%25A0%2580checkForPackageExtensions">⌾⠀checkForPackageExtensions</a></span></li><li class="nav-item"><span class="nav-item-type type-function">F</span><span class="nav-item-name"><a href="ModuleParser.html#%25E2%258C%25BE%25E2%25A0%2580findGQLBaseClasses">⌾⠀findGQLBaseClasses</a></span></li><li class="nav-item"><span class="nav-item-type type-function">F</span><span class="nav-item-name"><a href="ModuleParser.html#%25E2%258C%25BE%25E2%25A0%2580importClass">⌾⠀importClass</a></span></li><li class="nav-item"><span class="nav-item-type type-function">F</span><span class="nav-item-name"><a href="ModuleParser.html#%25E2%258C%25BE%25E2%25A0%2580parse">⌾⠀parse</a></span></li><li class="nav-item"><span class="nav-item-type type-function">F</span><span class="nav-item-name"><a href="ModuleParser.html#%25E2%258C%25BE%25E2%25A0%2580parseSync">⌾⠀parseSync</a></span></li><li class="nav-item"><span class="nav-item-type type-function">F</span><span class="nav-item-name"><a href="ModuleParser.html#~%25E2%258C%25BE%25E2%25A0%2580walk">⌾⠀walk</a></span></li><li class="nav-item"><span class="nav-item-type type-function">F</span><span class="nav-item-name"><a href="ModuleParser.html#~%25E2%258C%25BE%25E2%25A0%2580walkSync">⌾⠀walkSync</a></span></li><li class="nav-item"><span class="nav-item-type type-function">F</span><span class="nav-item-name"><a href="ModuleParser.html#~%25E2%258E%2586%25E2%25A0%2580constructor">⎆⠀constructor</a></span></li><li class="nav-heading"><span class="nav-item-type type-class">C</span><span class="nav-item-name"><a href="ModuleParser.exports.ModuleParser.html">exports.ModuleParser</a></span></li><li class="nav-heading"><span class="nav-item-type type-class">C</span><span class="nav-item-name"><a href="SchemaUtils.html">SchemaUtils</a></span></li><li class="nav-item"><span class="nav-item-type type-function">F</span><span class="nav-item-name"><a href="SchemaUtils.html#.%25E2%258C%25BE%25E2%25A0%2580createMergedRoot">⌾⠀createMergedRoot</a></span></li><li class="nav-item"><span class="nav-item-type type-function">F</span><span class="nav-item-name"><a href="SchemaUtils.html#.%25E2%258C%25BE%25E2%25A0%2580injectComments">⌾⠀injectComments</a></span></li><li class="nav-item"><span class="nav-item-type type-function">F</span><span class="nav-item-name"><a href="SchemaUtils.html#.%25E2%258C%25BE%25E2%25A0%2580injectEnums">⌾⠀injectEnums</a></span></li><li class="nav-item"><span class="nav-item-type type-function">F</span><span class="nav-item-name"><a href="SchemaUtils.html#.%25E2%258C%25BE%25E2%25A0%2580injectInterfaceResolvers">⌾⠀injectInterfaceResolvers</a></span></li><li class="nav-item"><span class="nav-item-type type-function">F</span><span class="nav-item-name"><a href="SchemaUtils.html#.%25E2%258C%25BE%25E2%25A0%2580injectScalars">⌾⠀injectScalars</a></span></li><li class="nav-heading"><span class="nav-item-type type-class">C</span><span class="nav-item-name"><a href="SyntaxTree.html">SyntaxTree</a></span></li><li class="nav-item"><span class="nav-item-type type-function">F</span><span class="nav-item-name"><a href="SyntaxTree.html#.%25E2%258C%25BE%25E2%25A0%2580EmptyDocument">⌾⠀EmptyDocument</a></span></li><li class="nav-item"><span class="nav-item-type type-function">F</span><span class="nav-item-name"><a href="SyntaxTree.html#.%25E2%258C%25BE%25E2%25A0%2580EmptyMutation">⌾⠀EmptyMutation</a></span></li><li class="nav-item"><span class="nav-item-type type-function">F</span><span class="nav-item-name"><a href="SyntaxTree.html#.%25E2%258C%25BE%25E2%25A0%2580EmptyQuery">⌾⠀EmptyQuery</a></span></li><li class="nav-item"><span class="nav-item-type type-function">F</span><span class="nav-item-name"><a href="SyntaxTree.html#.%25E2%258C%25BE%25E2%25A0%2580findDefinition">⌾⠀findDefinition</a></span></li><li class="nav-item"><span class="nav-item-type type-function">F</span><span class="nav-item-name"><a href="SyntaxTree.html#.%25E2%258C%25BE%25E2%25A0%2580findField">⌾⠀findField</a></span></li><li class="nav-item"><span class="nav-item-type type-function">F</span><span class="nav-item-name"><a href="SyntaxTree.html#.%25E2%258C%25BE%25E2%25A0%2580findInASTArrayByNameValue">⌾⠀findInASTArrayByNameValue</a></span></li><li class="nav-item"><span class="nav-item-type type-function">F</span><span class="nav-item-name"><a href="SyntaxTree.html#.%25E2%258C%25BE%25E2%25A0%2580from">⌾⠀from</a></span></li><li class="nav-item"><span class="nav-item-type type-function">F</span><span class="nav-item-name"><a href="SyntaxTree.html#.%25E2%258C%25BE%25E2%25A0%2580fromAST">⌾⠀fromAST</a></span></li><li class="nav-item"><span class="nav-item-type type-function">F</span><span class="nav-item-name"><a href="SyntaxTree.html#.%25E2%258C%25BE%25E2%25A0%2580fromSchema">⌾⠀fromSchema</a></span></li><li class="nav-item"><span class="nav-item-type type-function">F</span><span class="nav-item-name"><a href="SyntaxTree.html#.%25E2%258E%2586%25E2%25A0%2580constructor">⎆⠀constructor</a></span></li><li class="nav-item"><span class="nav-item-type type-function">F</span><span class="nav-item-name"><a href="SyntaxTree.html#%25E2%258C%25BE%25E2%25A0%2580appendDefinitions">⌾⠀appendDefinitions</a></span></li><li class="nav-item"><span class="nav-item-type type-function">F</span><span class="nav-item-name"><a href="SyntaxTree.html#%25E2%258C%25BE%25E2%25A0%2580consumeDefinition">⌾⠀consumeDefinition</a></span></li><li class="nav-item"><span class="nav-item-type type-function">F</span><span class="nav-item-name"><a href="SyntaxTree.html#%25E2%258C%25BE%25E2%25A0%2580find">⌾⠀find</a></span></li><li class="nav-item"><span class="nav-item-type type-function">F</span><span class="nav-item-name"><a href="SyntaxTree.html#%25E2%258C%25BE%25E2%25A0%2580findEnumDefinition">⌾⠀findEnumDefinition</a></span></li><li class="nav-item"><span class="nav-item-type type-function">F</span><span class="nav-item-name"><a href="SyntaxTree.html#%25E2%258C%25BE%25E2%25A0%2580setAST">⌾⠀setAST</a></span></li><li class="nav-item"><span class="nav-item-type type-function">F</span><span class="nav-item-name"><a href="SyntaxTree.html#%25E2%258C%25BE%25E2%25A0%2580toString">⌾⠀toString</a></span></li><li class="nav-item"><span class="nav-item-type type-function">F</span><span class="nav-item-name"><a href="SyntaxTree.html#%25E2%258C%25BE%25E2%25A0%2580updateAST">⌾⠀updateAST</a></span></li><li class="nav-item"><span class="nav-item-type type-function">F</span><span class="nav-item-name"><a href="SyntaxTree.html#%25E2%25AC%2586%25EF%25B8%258E%25E2%25A0%2580ast">⬆︎⠀ast</a></span></li><li class="nav-item"><span class="nav-item-type type-function">F</span><span class="nav-item-name"><a href="SyntaxTree.html#%25E2%25AC%2587%25EF%25B8%258E%25E2%25A0%2580ast">⬇︎⠀ast</a></span></li><li class="nav-heading"><span class="nav-item-type type-class">C</span><span class="nav-item-name"><a href="utils.Deferred.html">Deferred</a></span></li><li class="nav-heading">Namespaces</li><li class="nav-heading"><span class="nav-item-type type-namespace">N</span><span class="nav-item-name"><a href="decorators.html">decorators</a></span></li><li class="nav-item"><span class="nav-item-type type-function">F</span><span class="nav-item-name"><a href="decorators.html#.%25E2%258C%25BE%25E2%25A0%2580extractBits">⌾⠀extractBits</a></span></li><li class="nav-item"><span class="nav-item-type type-function">F</span><span class="nav-item-name"><a href="decorators.html#..%25F0%259F%258F%25B7%25E2%25A0%2580AdjacentSchema">.🏷⠀AdjacentSchema</a></span></li><li class="nav-item"><span class="nav-item-type type-function">F</span><span class="nav-item-name"><a 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32 <h1 class="page-title">GQLScalar.js</h1>
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39
40 <section>
41 <article>
42 <pre class="prettyprint source linenums"><code>// @flow
43
44import { GraphQLScalarType } from 'graphql'
45import { GQLBase } from './GQLBase'
46
47/**
48 * GQLScalars are how one might construct their own types for use within
49 * GraphQL with Lattice. The descriptions below should be sufficient to get
50 * you started with your own types. The SDL for a Scalar looks like this:
51 *
52 * ```
53 * scalar MyType
54 * ```
55 *
56 * @class GQLScalar
57 */
58export class GQLScalar extends GQLBase {
59 /**
60 * Determines the default type targeted by this GQLBase class. Any
61 * type will technically be valid but only will trigger special behavior
62 *
63 * @memberof GQLScalar
64 * @method ⬇︎⠀GQL_TYPE
65 * @static
66 * @const
67 *
68 * @return {Function} a type, such as `GraphQLObjectType` or
69 * `GraphQLInterfaceType`
70 */
71 static get GQL_TYPE(): Function {
72 return GraphQLScalarType;
73 }
74
75 /**
76 * The `serialize` method is called by GraphQL when the type is going to
77 * be sent to the client. Since values on the client are in the form of
78 * JSON, the return value of `serialize` can be any valid JSON value;
79 * String, Number, Array, Object, etc...
80 *
81 * @memberof GQLScalar
82 * @method serialize
83 * @static
84 *
85 * @param {mixed} value the value that needs to be converted for the
86 * downstream JSON client side result.
87 * @return {mixed} any valid JSON value
88 */
89 static serialize(value: mixed): mixed {
90 return value;
91 }
92
93 /**
94 * Parse value handles input from the client. In this form, the value is
95 * taken directly from the sent query. The type of the value can be nearly
96 * anything, but the `parseValue` function's job is to interpret the
97 * input and return the understood value.
98 *
99 * You could have a ColorBlind scalar type that took in a hexadecimal
100 * color string and converted it to a color scheme as seen by those with
101 * some form of color blindness. The value supplied to `parseValue` would
102 * be the input color. The modified color would be the output value.
103 *
104 * ```
105 * query {
106 * showMe(colorBlind: '#ff0000') {
107 * color
108 * }
109 * }
110 *
111 * // this might convert to #c65100
112 * ```
113 *
114 * This can also cover input sent in the form of variables. The variable
115 * can be of any valid JSON type.
116 *
117 * @memberof GQLScalar
118 * @method parseValue
119 * @static
120 *
121 * @param {mixed} value the input sent from a query that needs to be
122 * converted to an internal value for GraphQL to proceed
123 * @return {mixed} the converted output given the input; this will be purely
124 * how you want your scalars to function.
125 */
126 static parseValue(value: ?mixed): ?mixed {
127 return value;
128 }
129
130 /**
131 * Similar to `parseValue`, but rather than receiving the input values from
132 * a query or from a query variable, the data comes in the form of a parsed
133 * abstract syntax/source tree (AST). It is the job of `parseLiteral` to
134 * convert from an AST type to the desired output value.
135 *
136 * An example that converts all Strings to Numbers and vice versa
137 *
138 * ```javascript
139 * static parseLiteral(ast) {
140 * const { Kind } = require('graphql/language')
141 *
142 * switch (ast.kind) {
143 * case Kind.INT:
144 * case Kind.FLOAT:
145 * return String(ast.value)
146 * case Kind.STRING:
147 * return parseFloat(ast.value)
148 * default:
149 * return null;
150 * }
151 * }
152 * ```
153 *
154 * @memberof GQLScalar
155 * @method parseLiteral
156 * @static
157 *
158 * @param {Object} ast the parse value of the type given some literal SDL
159 * syntax. Presumably this is where you can choose to take a String, for
160 * example, and convert it to an integer when Kind.STRING is supplied.
161 * @return {mixed} the value of the conversion, given input.
162 */
163 static parseLiteral(ast: Object): ?mixed {
164 }
165}
166
167export default GQLScalar</code></pre>
168 </article>
169 </section>
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