graphql-yoga
Version:
<div align="center"><img src="./website/public/cover.png" width="720" /></div>
62 lines (61 loc) • 2.65 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
exports.processMultipartResult = void 0;
const core_1 = require("@envelop/core");
const error_js_1 = require("../../error.js");
const stringify_js_1 = require("./stringify.js");
function processMultipartResult(result, fetchAPI) {
const headersInit = {
Connection: 'keep-alive',
'Content-Type': 'multipart/mixed; boundary="-"',
'Transfer-Encoding': 'chunked',
};
const responseInit = (0, error_js_1.getResponseInitByRespectingErrors)(result, headersInit);
let iterator;
const textEncoder = new fetchAPI.TextEncoder();
const readableStream = new fetchAPI.ReadableStream({
start(controller) {
if ((0, core_1.isAsyncIterable)(result)) {
iterator = result[Symbol.asyncIterator]();
}
else {
let finished = false;
iterator = {
next: () => {
if (finished) {
return Promise.resolve({ done: true, value: null });
}
finished = true;
return Promise.resolve({ done: false, value: result });
},
};
}
controller.enqueue(textEncoder.encode(`---`));
},
async pull(controller) {
const { done, value } = await iterator.next();
if (value != null) {
controller.enqueue(textEncoder.encode('\r\n'));
controller.enqueue(textEncoder.encode('Content-Type: application/json; charset=utf-8'));
controller.enqueue(textEncoder.encode('\r\n'));
const chunk = (0, stringify_js_1.jsonStringifyResult)(value);
const encodedChunk = textEncoder.encode(chunk);
controller.enqueue(textEncoder.encode('Content-Length: ' + encodedChunk.byteLength));
controller.enqueue(textEncoder.encode('\r\n'));
controller.enqueue(textEncoder.encode('\r\n'));
controller.enqueue(encodedChunk);
controller.enqueue(textEncoder.encode('\r\n'));
controller.enqueue(textEncoder.encode('---'));
}
if (done) {
controller.enqueue(textEncoder.encode('--\r\n'));
controller.close();
}
},
async cancel(e) {
await iterator.return?.(e);
},
});
return new fetchAPI.Response(readableStream, responseInit);
}
exports.processMultipartResult = processMultipartResult;