rudeshark.net/src/server/api/endpoints/username/available.ts

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import $ from 'cafy';
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import User from '../../../../models/user';
import { validateUsername } from '../../../../models/user';
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import define from '../../define';
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export const meta = {
requireCredential: false,
params: {
username: {
validator: $.str.pipe(validateUsername)
}
}
};
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export default define(meta, (ps) => new Promise(async (res, rej) => {
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// Get exist
const exist = await User
.count({
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host: null,
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usernameLower: ps.username.toLowerCase()
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}, {
limit: 1
});
// Reply
res({
available: exist === 0
});
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}));