How to use the aws-appsync-subscription-link.createSubscriptionHandshakeLink function in aws-appsync-subscription-link
To help you get started, we’ve selected a few aws-appsync-subscription-link examples, based on popular ways it is used in public projects.
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awslabs / aws-mobile-appsync-sdk-js / packages / aws-appsync / src / client.ts View on Github 
conflictResolver,
}: {
url: string,
region: string,
auth: AuthOptions,
complexObjectsCredentials: CredentialsGetter,
resultsFetcherLink?: ApolloLink,
conflictResolver?: ConflictResolver,
}) => {
const link = ApolloLink.from([
createLinkWithStore((store) => new OfflineLink(store)),
new ConflictResolutionLink(conflictResolver),
new ComplexObjectLink(complexObjectsCredentials),
createRetryLink(ApolloLink.from([
new CatchErrorLink(() =>new AuthLink({ url, region, auth })),
new PermanentErrorLink(createSubscriptionHandshakeLink({ url, region, auth }, resultsFetcherLink))
]))
].filter(Boolean));
return link;
};aws-appsync-subscription-link
AWS Mobile AppSync SDK for JavaScript
