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import { ApolloLink, Observable } from 'apollo-link';
export const apolloCaptchaLink = new ApolloLink((operation, forward) =>
forward(operation).flatMap((result) => {
const { errors = [] } = result;
// Our API will return with a top-level GraphQL error with extensions
// in case a captcha is required.
const captchaError = errors.find((e) => e?.extensions?.needs_captcha_response);
if (captchaError) {
const captchaSiteKey = captchaError.extensions.captcha_site_key;
const spamLogId = captchaError.extensions.spam_log_id;
return new Observable((observer) => {
import('~/captcha/wait_for_captcha_to_be_solved')
.then(({ waitForCaptchaToBeSolved }) => waitForCaptchaToBeSolved(captchaSiteKey))
.then((captchaResponse) => {
// If the captcha was solved correctly, we re-do our action while setting
// captcha response headers.
operation.setContext({
headers: {
'X-GitLab-Captcha-Response': captchaResponse,
'X-GitLab-Spam-Log-Id': spamLogId,
},
});
forward(operation).subscribe(observer);
})
.catch((error) => {
observer.error(error);
observer.complete();
});
});
}
return Observable.of(result);
}),
);
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