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// TODO: Flow type again
import Raven from 'shared/raven';
import type { DBChannel } from 'shared/types';
import type { GraphQLContext } from '../../';
import { canViewChannel } from '../../utils/permissions';
export default async (root: DBChannel, _: any, ctx: GraphQLContext) => {
const { user, loaders } = ctx;
const { id, memberCount: rootMemberCount } = root;
if (!(await canViewChannel(user, id, loaders))) {
return {
members: 0,
};
}
if (typeof rootMemberCount === 'number') {
return {
members: rootMemberCount,
};
}
// Fallback if there's no denormalized memberCount, also report to Sentry
Raven.captureException(
new Error(`Channel with ID "${id}" does not have denormalized memberCount.`)
);
return {
members: await loaders.channelMemberCount
.load(id)
.then(res => (res && res.reduction) || 0),
};
};
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