@apollo/client
Version:
A fully-featured caching GraphQL client.
169 lines • 8.4 kB
JavaScript
import { __assign, __awaiter, __generator } from "tslib";
import { responseIterator } from "./responseIterator.js";
import { throwServerError } from "../utils/index.js";
import { PROTOCOL_ERRORS_SYMBOL } from "../../errors/index.js";
import { isApolloPayloadResult } from "../../utilities/common/incrementalResult.js";
var hasOwnProperty = Object.prototype.hasOwnProperty;
export function readMultipartBody(response, observer) {
var _a, _b, _c, _d, _e;
return __awaiter(this, void 0, void 0, function () {
var decoder, contentType, delimiter, boundaryVal, boundary, buffer, iterator, running, _f, value, done, chunk, searchFrom, bi, message, i, headers, contentType_1, body, result, next;
var _g, _h;
return __generator(this, function (_j) {
switch (_j.label) {
case 0:
if (TextDecoder === undefined) {
throw new Error("TextDecoder must be defined in the environment: please import a polyfill.");
}
decoder = new TextDecoder("utf-8");
contentType = (_a = response.headers) === null || _a === void 0 ? void 0 : _a.get("content-type");
delimiter = "boundary=";
boundaryVal = (contentType === null || contentType === void 0 ? void 0 : contentType.includes(delimiter))
? contentType === null || contentType === void 0 ? void 0 : contentType.substring((contentType === null || contentType === void 0 ? void 0 : contentType.indexOf(delimiter)) + delimiter.length).replace(/['"]/g, "").replace(/\;(.*)/gm, "").trim()
: "-";
boundary = "\r\n--".concat(boundaryVal);
buffer = "";
iterator = responseIterator(response);
running = true;
_j.label = 1;
case 1:
if (!running) return [3, 3];
return [4, iterator.next()];
case 2:
_f = _j.sent(), value = _f.value, done = _f.done;
chunk = typeof value === "string" ? value : decoder.decode(value);
searchFrom = buffer.length - boundary.length + 1;
running = !done;
buffer += chunk;
bi = buffer.indexOf(boundary, searchFrom);
while (bi > -1) {
message = void 0;
_g = [
buffer.slice(0, bi),
buffer.slice(bi + boundary.length),
], message = _g[0], buffer = _g[1];
i = message.indexOf("\r\n\r\n");
headers = parseHeaders(message.slice(0, i));
contentType_1 = headers["content-type"];
if (contentType_1 &&
contentType_1.toLowerCase().indexOf("application/json") === -1) {
throw new Error("Unsupported patch content type: application/json is required.");
}
body = message.slice(i);
if (body) {
try {
result = parseJsonBody(response, body);
if (Object.keys(result).length > 1 ||
"data" in result ||
"incremental" in result ||
"errors" in result ||
"payload" in result) {
if (isApolloPayloadResult(result)) {
next = {};
if ("payload" in result) {
next = __assign({}, result.payload);
}
if ("errors" in result) {
next = __assign(__assign({}, next), { extensions: __assign(__assign({}, ("extensions" in next ? next.extensions : null)), (_h = {}, _h[PROTOCOL_ERRORS_SYMBOL] = result.errors, _h)) });
}
(_b = observer.next) === null || _b === void 0 ? void 0 : _b.call(observer, next);
}
else {
(_c = observer.next) === null || _c === void 0 ? void 0 : _c.call(observer, result);
}
}
else if (Object.keys(result).length === 1 &&
"hasNext" in result &&
!result.hasNext) {
(_d = observer.complete) === null || _d === void 0 ? void 0 : _d.call(observer);
}
}
catch (err) {
handleError(err, observer);
}
}
bi = buffer.indexOf(boundary);
}
return [3, 1];
case 3:
(_e = observer.complete) === null || _e === void 0 ? void 0 : _e.call(observer);
return [2];
}
});
});
}
export function parseHeaders(headerText) {
var headersInit = {};
headerText.split("\n").forEach(function (line) {
var i = line.indexOf(":");
if (i > -1) {
var name_1 = line.slice(0, i).trim().toLowerCase();
var value = line.slice(i + 1).trim();
headersInit[name_1] = value;
}
});
return headersInit;
}
export function parseJsonBody(response, bodyText) {
if (response.status >= 300) {
var getResult = function () {
try {
return JSON.parse(bodyText);
}
catch (err) {
return bodyText;
}
};
throwServerError(response, getResult(), "Response not successful: Received status code ".concat(response.status));
}
try {
return JSON.parse(bodyText);
}
catch (err) {
var parseError = err;
parseError.name = "ServerParseError";
parseError.response = response;
parseError.statusCode = response.status;
parseError.bodyText = bodyText;
throw parseError;
}
}
export function handleError(err, observer) {
var _a, _b;
if (err.name === "AbortError")
return;
if (err.result && err.result.errors && err.result.data) {
(_a = observer.next) === null || _a === void 0 ? void 0 : _a.call(observer, err.result);
}
(_b = observer.error) === null || _b === void 0 ? void 0 : _b.call(observer, err);
}
export function readJsonBody(response, operation, observer) {
parseAndCheckHttpResponse(operation)(response)
.then(function (result) {
var _a, _b;
(_a = observer.next) === null || _a === void 0 ? void 0 : _a.call(observer, result);
(_b = observer.complete) === null || _b === void 0 ? void 0 : _b.call(observer);
})
.catch(function (err) { return handleError(err, observer); });
}
export function parseAndCheckHttpResponse(operations) {
return function (response) {
return response
.text()
.then(function (bodyText) { return parseJsonBody(response, bodyText); })
.then(function (result) {
if (response.status >= 300) {
throwServerError(response, result, "Response not successful: Received status code ".concat(response.status));
}
if (!Array.isArray(result) &&
!hasOwnProperty.call(result, "data") &&
!hasOwnProperty.call(result, "errors")) {
throwServerError(response, result, "Server response was missing for query '".concat(Array.isArray(operations)
? operations.map(function (op) { return op.operationName; })
: operations.operationName, "'."));
}
return result;
});
};
}
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