53 lines
1.2 KiB
TypeScript
53 lines
1.2 KiB
TypeScript
|
export default async function fetchJson<JSON = unknown>(
|
||
|
|
input: RequestInfo,
|
||
|
|
init?: RequestInit
|
||
|
|
): Promise<JSON> {
|
||
|
|
const response = await fetch(input, { ...init, credentials: 'include' });
|
||
|
|
|
||
|
|
// if the server replies, there's always some data in json
|
||
|
|
// if there's a network error, it will throw at the previous line
|
||
|
|
const data = await response.json();
|
||
|
|
|
||
|
|
// response.ok is true when res.status is 2xx
|
||
|
|
// https://developer.mozilla.org/en-US/docs/Web/API/Response/ok
|
||
|
|
if (response.ok) {
|
||
|
|
return data;
|
||
|
|
}
|
||
|
|
|
||
|
|
throw new FetchError({
|
||
|
|
message: response.statusText,
|
||
|
|
response,
|
||
|
|
data,
|
||
|
|
});
|
||
|
|
}
|
||
|
|
|
||
|
|
export class FetchError extends Error {
|
||
|
|
response: Response;
|
||
|
|
data: {
|
||
|
|
message: string;
|
||
|
|
};
|
||
|
|
constructor({
|
||
|
|
message,
|
||
|
|
response,
|
||
|
|
data,
|
||
|
|
}: {
|
||
|
|
message: string;
|
||
|
|
response: Response;
|
||
|
|
data: {
|
||
|
|
message: string;
|
||
|
|
};
|
||
|
|
}) {
|
||
|
|
// Pass remaining arguments (including vendor specific ones) to parent constructor
|
||
|
|
super(message);
|
||
|
|
|
||
|
|
// Maintains proper stack trace for where our error was thrown (only available on V8)
|
||
|
|
if (Error.captureStackTrace) {
|
||
|
|
Error.captureStackTrace(this, FetchError);
|
||
|
|
}
|
||
|
|
|
||
|
|
this.name = 'FetchError';
|
||
|
|
this.response = response;
|
||
|
|
this.data = data ?? { message: message };
|
||
|
|
}
|
||
|
|
}
|