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Make it independent from graphql-tools
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,87 @@ | ||
| import { getNamedType, GraphQLSchema, isObjectType, isInputObjectType, GraphQLField, GraphQLInputType } from 'graphql'; | ||
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| export type IndexedObject<V> = { [key: string]: V } | ReadonlyArray<V>; | ||
| export type IFieldIteratorFn = (fieldDef: GraphQLField<any, any>, typeName: string, fieldName: string) => void; | ||
| export type IDefaultValueIteratorFn = (type: GraphQLInputType, value: any) => void; | ||
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| export function forEachField(schema: GraphQLSchema, fn: IFieldIteratorFn): void { | ||
| const typeMap = schema.getTypeMap(); | ||
| Object.keys(typeMap).forEach((typeName) => { | ||
| const type = typeMap[typeName]; | ||
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| // TODO: maybe have an option to include these? | ||
| if (!getNamedType(type).name.startsWith('__') && isObjectType(type)) { | ||
| const fields = type.getFields(); | ||
| Object.keys(fields).forEach((fieldName) => { | ||
| const field = fields[fieldName]; | ||
| fn(field, typeName, fieldName); | ||
| }); | ||
| } | ||
| }); | ||
| } | ||
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| export function forEachDefaultValue(schema: GraphQLSchema, fn: IDefaultValueIteratorFn): void { | ||
| const typeMap = schema.getTypeMap(); | ||
| Object.keys(typeMap).forEach((typeName) => { | ||
| const type = typeMap[typeName]; | ||
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| if (!getNamedType(type).name.startsWith('__')) { | ||
| if (isObjectType(type)) { | ||
| const fields = type.getFields(); | ||
| Object.keys(fields).forEach((fieldName) => { | ||
| const field = fields[fieldName]; | ||
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| field.args.forEach((arg) => { | ||
| arg.defaultValue = fn(arg.type, arg.defaultValue); | ||
| }); | ||
| }); | ||
| } else if (isInputObjectType(type)) { | ||
| const fields = type.getFields(); | ||
| Object.keys(fields).forEach((fieldName) => { | ||
| const field = fields[fieldName]; | ||
| field.defaultValue = fn(field.type, field.defaultValue); | ||
| }); | ||
| } | ||
| } | ||
| }); | ||
| } | ||
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| // A more powerful version of each that has the ability to replace or remove | ||
| // array or object keys. | ||
| export function updateEachKey<V>( | ||
| arrayOrObject: IndexedObject<V>, | ||
| // The callback can return nothing to leave the key untouched, null to remove | ||
| // the key from the array or object, or a non-null V to replace the value. | ||
| updater: (value: V, key: string) => void | null | V | ||
| ) { | ||
| let deletedCount = 0; | ||
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| Object.keys(arrayOrObject).forEach((key) => { | ||
| const result = updater(arrayOrObject[key], key); | ||
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| if (typeof result === 'undefined') { | ||
| return; | ||
| } | ||
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| if (result === null) { | ||
| delete arrayOrObject[key]; | ||
| deletedCount++; | ||
| return; | ||
| } | ||
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| arrayOrObject[key] = result; | ||
| }); | ||
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| if (deletedCount > 0 && Array.isArray(arrayOrObject)) { | ||
| // Remove any holes from the array due to deleted elements. | ||
| arrayOrObject.splice(0).forEach((elem) => { | ||
| arrayOrObject.push(elem); | ||
| }); | ||
| } | ||
| } | ||
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| export function each<V>(arrayOrObject: IndexedObject<V>, callback: (value: V, key: string) => void) { | ||
| Object.keys(arrayOrObject).forEach((key) => { | ||
| callback(arrayOrObject[key], key); | ||
| }); | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,25 @@ | ||
| export function mergeDeep(target: any, ...sources: any): any { | ||
| const output = { | ||
| ...target, | ||
| }; | ||
| sources.forEach((source: any) => { | ||
| if (isObject(target) && isObject(source)) { | ||
| Object.keys(source).forEach((key) => { | ||
| if (isObject(source[key])) { | ||
| if (!(key in target)) { | ||
| Object.assign(output, { [key]: source[key] }); | ||
| } else { | ||
| output[key] = mergeDeep(target[key], source[key]); | ||
| } | ||
| } else { | ||
| Object.assign(output, { [key]: source[key] }); | ||
| } | ||
| }); | ||
| } | ||
| }); | ||
| return output; | ||
| } | ||
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| function isObject(item: any): boolean { | ||
| return item && typeof item === 'object' && !Array.isArray(item); | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,11 @@ | ||
| // @schemaDefinition: A GraphQL type schema in shorthand | ||
| // @resolvers: Definitions for resolvers to be merged with schema | ||
| export class SchemaError extends Error { | ||
| public message: string; | ||
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| constructor(message: string) { | ||
| super(message); | ||
| this.message = message; | ||
| Error.captureStackTrace(this, this.constructor); | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,64 @@ | ||
| import { | ||
| GraphQLObjectType, | ||
| GraphQLInterfaceType, | ||
| GraphQLInputObjectType, | ||
| GraphQLString, | ||
| GraphQLNamedType, | ||
| GraphQLInt, | ||
| GraphQLFloat, | ||
| GraphQLBoolean, | ||
| GraphQLID, | ||
| isObjectType, | ||
| isInterfaceType, | ||
| isInputObjectType, | ||
| } from 'graphql'; | ||
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| export function createNamedStub( | ||
| name: string, | ||
| type: 'object' | 'interface' | 'input' | ||
| ): GraphQLObjectType | GraphQLInputObjectType | GraphQLInterfaceType { | ||
| let constructor: any; | ||
| if (type === 'object') { | ||
| constructor = GraphQLObjectType; | ||
| } else if (type === 'interface') { | ||
| constructor = GraphQLInterfaceType; | ||
| } else { | ||
| constructor = GraphQLInputObjectType; | ||
| } | ||
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| return new constructor({ | ||
| name, | ||
| fields: { | ||
| __fake: { | ||
| type: GraphQLString, | ||
| }, | ||
| }, | ||
| }); | ||
| } | ||
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| export function isStub(type: GraphQLNamedType): boolean { | ||
| if (isObjectType(type) || isInterfaceType(type) || isInputObjectType(type)) { | ||
| const fields = type.getFields(); | ||
| const fieldNames = Object.keys(fields); | ||
| return fieldNames.length === 1 && fields[fieldNames[0]].name === '__fake'; | ||
| } | ||
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| return false; | ||
| } | ||
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| export function getBuiltInForStub(type: GraphQLNamedType): GraphQLNamedType { | ||
| switch (type.name) { | ||
| case GraphQLInt.name: | ||
| return GraphQLInt; | ||
| case GraphQLFloat.name: | ||
| return GraphQLFloat; | ||
| case GraphQLString.name: | ||
| return GraphQLString; | ||
| case GraphQLBoolean.name: | ||
| return GraphQLBoolean; | ||
| case GraphQLID.name: | ||
| return GraphQLID; | ||
| default: | ||
| return type; | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,46 @@ | ||
| import { | ||
| GraphQLEnumType, | ||
| GraphQLInputType, | ||
| GraphQLScalarType, | ||
| getNullableType, | ||
| isLeafType, | ||
| isListType, | ||
| isInputObjectType, | ||
| } from 'graphql'; | ||
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| type InputValueTransformer = (type: GraphQLEnumType | GraphQLScalarType, originalValue: any) => any; | ||
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| export function transformInputValue(type: GraphQLInputType, value: any, transformer: InputValueTransformer) { | ||
| if (value == null) { | ||
| return value; | ||
| } | ||
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| const nullableType = getNullableType(type); | ||
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| if (isLeafType(nullableType)) { | ||
| return transformer(nullableType, value); | ||
| } else if (isListType(nullableType)) { | ||
| return value.map((listMember: any) => transformInputValue(nullableType.ofType, listMember, transformer)); | ||
| } else if (isInputObjectType(nullableType)) { | ||
| const fields = nullableType.getFields(); | ||
| const newValue = {}; | ||
| Object.keys(value).forEach((key) => { | ||
| newValue[key] = transformInputValue(fields[key].type, value[key], transformer); | ||
| }); | ||
| return newValue; | ||
| } | ||
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| // unreachable, no other possible return value | ||
| } | ||
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| export function serializeInputValue(type: GraphQLInputType, value: any) { | ||
| return transformInputValue(type, value, (t, v) => t.serialize(v)); | ||
| } | ||
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| export function parseInputValue(type: GraphQLInputType, value: any) { | ||
| return transformInputValue(type, value, (t, v) => t.parseValue(v)); | ||
| } | ||
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| export function parseInputValueLiteral(type: GraphQLInputType, value: any) { | ||
| return transformInputValue(type, value, (t, v) => t.parseLiteral(v, {})); | ||
| } |
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