graphql-yoga/cjs/plugins/request-parser/post-multipart.js

<div align="center"><img src="/website/public/cover.png" width="720" /></div>

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.isPOSTMultipartRequest = isPOSTMultipartRequest;
exports.parsePOSTMultipartRequest = parsePOSTMultipartRequest;
const dset_1 = require("dset");
const utils_1 = require("@graphql-tools/utils");
const promise_helpers_1 = require("@whatwg-node/promise-helpers");
const utils_js_1 = require("./utils.js");
function isPOSTMultipartRequest(request) {
    return request.method === 'POST' && (0, utils_js_1.isContentTypeMatch)(request, 'multipart/form-data');
}
function parsePOSTMultipartRequest(request) {
    return (0, promise_helpers_1.handleMaybePromise)(() => request.formData(), (requestBody) => {
        const operationsStr = requestBody.get('operations');
        if (!operationsStr) {
            throw (0, utils_1.createGraphQLError)('Missing multipart form field "operations"');
        }
        if (typeof operationsStr !== 'string') {
            throw (0, utils_1.createGraphQLError)('Multipart form field "operations" must be a string');
        }
        let operations;
        try {
            operations = JSON.parse(operationsStr);
        }
        catch {
            throw (0, utils_1.createGraphQLError)('Multipart form field "operations" must be a valid JSON string');
        }
        const mapStr = requestBody.get('map');
        if (mapStr != null) {
            if (typeof mapStr !== 'string') {
                throw (0, utils_1.createGraphQLError)('Multipart form field "map" must be a string');
            }
            let map;
            try {
                map = JSON.parse(mapStr);
            }
            catch {
                throw (0, utils_1.createGraphQLError)('Multipart form field "map" must be a valid JSON string');
            }
            for (const fileIndex in map) {
                const file = requestBody.get(fileIndex);
                const keys = map[fileIndex];
                for (const key of keys) {
                    (0, dset_1.dset)(operations, key, file);
                }
            }
        }
        return operations;
    }, e => {
        if (e instanceof Error && e.message.startsWith('File size limit exceeded: ')) {
            throw (0, utils_1.createGraphQLError)(e.message, {
                extensions: {
                    http: {
                        status: 413,
                    },
                },
            });
        }
        throw e;
    });
}