Merge pull request #110 from ExpediaGroup/ts-conversion

Rewrite in TypeScript

Author: tlivings

.eslintrc

@@ -1,3 +1,12 @@
+### v6.0.0
+
+- Converted to TS
+- BREAKING removed `delegateToComponent`
+- BREAKING excludes removed as an option in import configuration. Transforms used instead as part of a `SubschemaConfig`.
+- BREAKING upgraded to graphql 16.9+ peer
+
+===
+
 ### v5.0.1
 
 - Update @graphql-tools/utils dependency and fix samples for Apollo server v3.
@@ -179,4 +188,4 @@
 
 - Fixed .npmignore to not include misc files that added to the package size
 
-### v1.0.0 — promoted from alpha.23
+### v1.0.0 — promoted from alpha.23

.nycrc

@@ -0,0 +1,118 @@
+import { GraphQLResolveInfo, GraphQLSchema } from 'graphql';
+import { IResolvers, PruneSchemaOptions, TypeSource, SchemaMapper } from '@graphql-tools/utils';
+import { IMocks } from '@graphql-tools/mock';
+import { SubschemaConfig } from '@graphql-tools/delegate';
+export type ResolverFunction = (_: any, args: any, ctx: any, info: GraphQLResolveInfo) => any;
+export interface IGraphQLComponentConfigObject {
+    component: IGraphQLComponent;
+    configuration?: SubschemaConfig;
+}
+export interface ComponentContext extends Record<string, unknown> {
+    dataSources: DataSourceMap;
+}
+export type ContextFunction = ((context: Record<string, unknown>) => any);
+export interface IDataSource {
+    name?: string;
+    [key: string | symbol]: any;
+}
+/**
+ * Type for implementing data sources
+ * When defining a data source class, methods should accept context as their first parameter
+ * @example
+ * class MyDataSource {
+ *   name = 'MyDataSource';
+ *
+ *   // Context is required as first parameter when implementing
+ *   getData(context: ComponentContext, id: string) {
+ *     return { id };
+ *   }
+ * }
+ */
+export type DataSourceDefinition<T> = {
+    [P in keyof T]: T[P] extends Function ? (context: ComponentContext, ...args: any[]) => any : T[P];
+};
+/**
+ * Type for consuming data sources in resolvers
+ * When using a data source method, the context is automatically injected
+ * @example
+ * // In a resolver:
+ * Query: {
+ *   getData(_, { id }, context) {
+ *     // Context is automatically injected, so you don't pass it
+ *     return context.dataSources.MyDataSource.getData(id);
+ *   }
+ * }
+ */
+export type DataSource<T> = {
+    [P in keyof T]: T[P] extends (context: ComponentContext, ...p: infer P) => infer R ? (...p: P) => R : T[P];
+};
+export type DataSourceMap = {
+    [key: string]: IDataSource;
+};
+export type DataSourceInjectionFunction = ((context: Record<string, unknown>) => DataSourceMap);
+export interface IContextConfig {
+    namespace: string;
+    factory: ContextFunction;
+}
+export interface IContextWrapper extends ContextFunction {
+    use: (name: string | ContextFunction | null, fn?: ContextFunction | string) => void;
+}
+export interface IGraphQLComponentOptions<TContextType extends ComponentContext = ComponentContext> {
+    types?: TypeSource;
+    resolvers?: IResolvers<any, TContextType>;
+    mocks?: boolean | IMocks;
+    imports?: (IGraphQLComponent | IGraphQLComponentConfigObject)[];
+    context?: IContextConfig;
+    dataSources?: IDataSource[];
+    dataSourceOverrides?: IDataSource[];
+    pruneSchema?: boolean;
+    pruneSchemaOptions?: PruneSchemaOptions;
+    federation?: boolean;
+    transforms?: SchemaMapper[];
+}
+export interface IGraphQLComponent<TContextType extends ComponentContext = ComponentContext> {
+    readonly name: string;
+    readonly schema: GraphQLSchema;
+    readonly context: IContextWrapper;
+    readonly types: TypeSource;
+    readonly resolvers: IResolvers<any, TContextType>;
+    readonly imports?: (IGraphQLComponent | IGraphQLComponentConfigObject)[];
+    readonly dataSources?: IDataSource[];
+    readonly dataSourceOverrides?: IDataSource[];
+    federation?: boolean;
+}
+/**
+ * GraphQLComponent class for building modular GraphQL schemas
+ * @template TContextType - The type of the context object
+ * @implements {IGraphQLComponent}
+ */
+export default class GraphQLComponent<TContextType extends ComponentContext = ComponentContext> implements IGraphQLComponent<TContextType> {
+    _schema: GraphQLSchema;
+    _types: TypeSource;
+    _resolvers: IResolvers<any, TContextType>;
+    _mocks: boolean | IMocks;
+    _imports: IGraphQLComponentConfigObject[];
+    _context: ContextFunction;
+    _dataSources: IDataSource[];
+    _dataSourceOverrides: IDataSource[];
+    _pruneSchema: boolean;
+    _pruneSchemaOptions: PruneSchemaOptions;
+    _federation: boolean;
+    _dataSourceContextInject: DataSourceInjectionFunction;
+    _transforms: SchemaMapper[];
+    private _transformedSchema;
+    constructor({ types, resolvers, mocks, imports, context, dataSources, dataSourceOverrides, pruneSchema, pruneSchemaOptions, federation, transforms }: IGraphQLComponentOptions);
+    get context(): IContextWrapper;
+    get name(): string;
+    get schema(): GraphQLSchema;
+    get types(): TypeSource;
+    get resolvers(): IResolvers<any, TContextType>;
+    get imports(): IGraphQLComponentConfigObject[];
+    get dataSources(): IDataSource[];
+    get dataSourceOverrides(): IDataSource[];
+    set federation(flag: boolean);
+    get federation(): boolean;
+    dispose(): void;
+    private transformSchema;
+    private validateConfig;
+}