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graphql-sse

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Zero-dependency, HTTP/1 safe, simple, GraphQL over Server-Sent Events Protocol server and client

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/// <reference types="node" /> import type { Http2ServerRequest, Http2ServerResponse } from 'http2'; import { HandlerOptions as RawHandlerOptions, OperationContext } from '../handler.mjs'; /** * @category Server/http2 */ export interface RequestContext { res: Http2ServerResponse; } /** * @category Server/http2 */ export type HandlerOptions<Context extends OperationContext = undefined> = RawHandlerOptions<Http2ServerRequest, RequestContext, Context>; /** * The ready-to-use handler for Node's [http](https://nodejs.org/api/http2.html). * * Errors thrown from the provided options or callbacks (or even due to * library misuse or potential bugs) will reject the handler or bubble to the * returned iterator. They are considered internal errors and you should take care * of them accordingly. * * For production environments, its recommended not to transmit the exact internal * error details to the client, but instead report to an error logging tool or simply * the console. * * ```ts * import http from 'http2'; * import { createHandler } from 'graphql-sse/lib/use/http2'; * import { schema } from './my-graphql/index.mjs'; * * const handler = createHandler({ schema }); * * const server = http.createServer(async (req, res) => { * try { * await handler(req, res); * } catch (err) { * console.error(err); * res.writeHead(500).end(); * } * }); * * server.listen(4000); * console.log('Listening to port 4000'); * ``` * * @category Server/http2 */ export declare function createHandler<Context extends OperationContext = undefined>(options: HandlerOptions<Context>): (req: Http2ServerRequest, res: Http2ServerResponse) => Promise<void>;