graphql-upload-ts/dist/graphqlUploadKoa.js

Typescript minimalistic and developer friendly middleware and an Upload scalar to add support for GraphQL multipart requests (file uploads via queries and mutations) to various Node.js GraphQL servers.

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.graphqlUploadKoa = void 0;
const processRequest_1 = require("./processRequest");
/**
 * Creates [Koa](https://koajs.com) middleware that processes
 * [GraphQL multipart requests](https://github.com/jaydenseric/graphql-multipart-request-spec)
 * using [`processRequest`]{@link processRequest}, ignoring non-multipart
 * requests. It sets the request body to be
 * [similar to a conventional GraphQL POST request]{@link GraphQLOperation} for
 * following GraphQL middleware to consume.
 * @example <caption>Ways to `import`.</caption>
 * ```js
 * import { graphqlUploadKoa } from 'graphql-upload-ts';
 * ```
 *
 * ```js
 * import graphqlUploadKoa from 'graphql-upload-ts/dist/graphqlUploadKoa.js';
 * ```
 * @example <caption>Ways to `require`.</caption>
 * ```js
 * const { graphqlUploadKoa } = require('graphql-upload-ts');
 * ```
 *
 * ```js
 * const graphqlUploadKoa = require('graphql-upload-ts/dist/graphqlUploadKoa');
 * ```
 * @example <caption>Basic [`graphql-api-koa`](https://npm.im/graphql-api-koa) setup.</caption>
 * ```js
 * const Koa = require('koa');
 * const bodyParser = require('koa-bodyparser');
 * const { errorHandler, execute } = require('graphql-api-koa');
 * const { graphqlUploadKoa } = require('graphql-upload-ts');
 * const schema = require('./schema');
 *
 * new Koa()
 *   .use(errorHandler())
 *   .use(bodyParser())
 *   .use(graphqlUploadKoa({ maxFileSize: 10000000, maxFiles: 10 }))
 *   .use(execute({ schema }))
 *   .listen(3000);
 * ```
 */
function graphqlUploadKoa(params = {}) {
    const { processRequest = processRequest_1.processRequest, ...processRequestOptions } = params;
    return async function graphqlUploadKoaMiddleware(ctx, next) {
        if (!ctx.request.is('multipart/form-data'))
            return next();
        const finished = new Promise((resolve) => ctx.req.on('end', resolve));
        try {
            ctx.body = await processRequest(ctx.req, ctx.res, processRequestOptions);
            await next();
        }
        finally {
            await finished;
        }
    };
}
exports.graphqlUploadKoa = graphqlUploadKoa;
//# sourceMappingURL=graphqlUploadKoa.js.map