mongoose-schema-to-graphql/lib/index.min.js

Auto types generator for graphQL schema, based on your existed Mongoose schema. Check GitHub for description.

'use strict';Object.defineProperty(exports,'__esModule',{value:true});exports.generateDescriptionForSubField=exports.generateNameForSubField=undefined;var _graphql=require('graphql');var _graphqlIsoDate=require('graphql-iso-date');var possibleGraphQLClasses={GraphQLObjectType:_graphql.GraphQLObjectType,GraphQLInputObjectType:_graphql.GraphQLInputObjectType,GraphQLInterfaceType:_graphql.GraphQLInterfaceType,GraphQLUnionType:_graphql.GraphQLUnionType,GraphQLEnumType:_graphql.GraphQLEnumType,GraphQLDateTime:_graphqlIsoDate.GraphQLDateTime,GraphQLID:_graphql.GraphQLID};var setFnName=function setFnName(fn,name){return Object.defineProperty(fn,'name',{value:name})};var generateNameForSubField=exports.generateNameForSubField=function generateNameForSubField(rootTypeName,subFieldKeyName){return`${rootTypeName}_${subFieldKeyName}`};var generateDescriptionForSubField=exports.generateDescriptionForSubField=function generateDescriptionForSubField(rootTypeName,subFieldKeyName){return`${rootTypeName}'s '${subFieldKeyName}' sub-field`};var convertPrimitiveObjectInstanceToGraphQLType=function convertPrimitiveObjectInstanceToGraphQLType(instanceName){switch(instanceName){case'ObjectID':return _graphql.GraphQLID;case'String':case'Mixed':return _graphql.GraphQLString;case'Date':return _graphqlIsoDate.GraphQLDateTime;case'Boolean':case'Buffer':return _graphql.GraphQLBoolean;case'Number':return _graphql.GraphQLInt;default:throw new Error(`unknown primitive object instance name: "${instanceName}"`);}};var generateGraphQLType=function generateGraphQLType(typeClass,config){return new possibleGraphQLClasses[typeClass](config)};var checkArgsForErrors=function checkArgsForErrors(args){if(!args){throw new Error('options are required')}if(!args.schema){throw new Error('`schema` option *should* be provided')}if(!args.schema.paths){throw new Error('`schema` option should be a valid mongoose.Schema instance')}if(!args.name){throw new Error('`name` option *should* be provided')}if(!args.class){throw new Error('`class` option is required')}if(Object.keys(possibleGraphQLClasses).indexOf(args.class)===-1){throw new Error('invalid `class` option specified')}};var parseArgs=function parseArgs(args){checkArgsForErrors(args);var res=args;res.exclude=args.exclude||[];res.extend=args.extend||{};res.props=args.props||{};return res};var generatedTypesMemory={};var memoize=function memoize(name,resultingGraphQLType){if(generatedTypesMemory[name]){throw new Error('attempt to create GraphQL type with already existing name')}generatedTypesMemory[name]=resultingGraphQLType};var getFromMemory=function getFromMemory(name){return generatedTypesMemory[name]};function createType(args){var parsedArgs=parseArgs(args);var alreadyGeneratedType=getFromMemory(parsedArgs.name);if(alreadyGeneratedType)return alreadyGeneratedType;var resultingGraphQLOptions={name:parsedArgs.name,description:parsedArgs.description,fields:function fields(){return{}}};var resultingGraphQLType=null;var rootSchemaPaths=parsedArgs.schema.paths;var setResultingTypeField=function setResultingTypeField(key,val){var oldFields=resultingGraphQLOptions.fields;resultingGraphQLOptions.fields=function(){return Object.assign({},oldFields(),{[key]:val})}};var setResultingTypeFieldFn=function setResultingTypeFieldFn(key,val){var oldFields=resultingGraphQLOptions.fields;resultingGraphQLOptions.fields=function(){return Object.assign({},oldFields(),{[key]:val()})}};var extendResultingTypeField=function extendResultingTypeField(newFields){var oldFields=resultingGraphQLOptions.fields;resultingGraphQLOptions.fields=function(){return Object.assign({},oldFields(),typeof newFields==='function'?newFields():newFields)}};Object.keys(rootSchemaPaths).filter(function(pathName){if(parsedArgs.exclude instanceof RegExp){return!parsedArgs.exclude.test(pathName)}return parsedArgs.exclude.indexOf(pathName)===-1}).map(function(pathName){var path=rootSchemaPaths[pathName];if(path.caster&&path.caster.options&&path.caster.options.ref&&getFromMemory(path.caster.options.ref)){var refTypeName=path.caster.options.ref;setResultingTypeFieldFn(pathName,function(){var refGraphQLType=getFromMemory(refTypeName);if(!refGraphQLType){throw new Error(`
type with name "${refTypeName}" doesn't exist,
but was specified as population reference.
*NOTE*: This error was thrown while creating "${parsedArgs.name}" GraphQL type.
`)}return{type:refGraphQLType}});return}var pathInstanceName=path.instance;if(pathInstanceName==='Embedded'){if(parsedArgs.schema===path.schema){setResultingTypeFieldFn(pathName,function(){return{type:resultingGraphQLType}})}else{setResultingTypeField(pathName,{type:createType({name:generateNameForSubField(resultingGraphQLOptions.name,pathName),description:generateDescriptionForSubField(resultingGraphQLOptions.name,pathName),class:parsedArgs.class,schema:path.schema,exclude:parsedArgs.exclude})})}return}if(pathInstanceName==='Array'){if(path.schema){if(parsedArgs.schema===path.schema){setResultingTypeFieldFn(pathName,function(){return{type:new _graphql.GraphQLList(resultingGraphQLType)}})}else{setResultingTypeField(pathName,{type:new _graphql.GraphQLList(createType({name:generateNameForSubField(resultingGraphQLOptions.name,pathName),description:generateDescriptionForSubField(resultingGraphQLOptions.name,pathName),class:parsedArgs.class,schema:path.schema,exclude:parsedArgs.exclude}))})}}else{var arrayElementInstanceName=path.caster.instance;var resType=new _graphql.GraphQLList(convertPrimitiveObjectInstanceToGraphQLType(arrayElementInstanceName));setResultingTypeField(pathName,{type:resType})}return}setResultingTypeField(pathName,{type:convertPrimitiveObjectInstanceToGraphQLType(pathInstanceName)})});extendResultingTypeField(parsedArgs.extend);extendResultingTypeField(parsedArgs.props);setFnName(resultingGraphQLOptions.fields,'fields');resultingGraphQLType=generateGraphQLType(parsedArgs.class,resultingGraphQLOptions);memoize(parsedArgs.name,resultingGraphQLType);return resultingGraphQLType}exports=module.exports=createType;exports.generateNameForSubField=generateNameForSubField;exports.generateDescriptionForSubField=generateDescriptionForSubField;