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Creates a new user account with the default role of USUARIO. The submitted password is hashed with bcrypt at 10 rounds before being stored — the plain-text value is never persisted. On success, the server signs a JWT and writes it to an HTTP-only token cookie, logging the user in immediately without a separate login step.

​
Request

POST /api/auth/register
​
nombre
string
required
The user’s display name. Stored as-is and returned in all session payloads.
​
email
string
required
The user’s email address. Must be unique across all accounts — the server queries the database before inserting.
​
password
string
required
The user’s chosen password. Must be at least 6 characters long. Validated before hashing.

​
Response

​
200 — Success

Returns the newly created user’s public profile and sets the token cookie.
​
ok
boolean
Always true on a successful response.
​
usuario
object
Public profile of the newly registered user.
The response also sets a Set-Cookie header with the following attributes: httpOnly: true, sameSite: lax, maxAge: 604800 (7 days), path: /. In production the secure flag is also added so the cookie is only sent over HTTPS.

​
Error Responses

Statuserror valueCause
400"Todos los campos son requeridos"One or more of nombre, email, or password are absent from the request body.
400"La contraseña debe tener al menos 6 caracteres"The supplied password is fewer than 6 characters long.
409"El email ya está registrado"An account with the provided email already exists.
500"Error interno del servidor"An unexpected server-side error occurred.
Email uniqueness is checked at the application layer via a findUnique query before the insert. For high-concurrency scenarios, the database-level unique constraint on the email column acts as the final guard — a race condition will surface as a 500 rather than a 409.

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Examples

curl -X POST https://your-app.vercel.app/api/auth/register \
  -H "Content-Type: application/json" \
  -d '{"nombre": "Ana García", "email": "ana@reservafacil.com", "password": "segura123"}'

​
Success response body

{
  "ok": true,
  "usuario": {
    "id": "clx9z8y7x0000abcd5678efgh",
    "nombre": "Ana García",
    "email": "ana@reservafacil.com",
    "rol": "USUARIO"
  }
}

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