api.pawol.nu/src/api/artiste/controllers/artiste.js

'use strict';

const { createCoreController } = require('@strapi/strapi').factories;
const slugify = require('slugify')

const getSlug = text => {
  return slugify(text, {lower: true, remove: /[*#+~.()'"!:@]/g})
}

module.exports = createCoreController('api::artiste.artiste', ({strapi}) => ({
  async create(ctx) {
    const {body} = ctx.request
    let {data} = body

    const user = await strapi.documents('plugin::users-permissions.user').findOne({
      documentId: body.data.user.documentId
    })

    if (!user) {
      return ctx.notFound('Utilisateur introuvable.')
    }

    if (user.id !== data.user.id || user.username !== data.user.username || user.email !== data.user.email) {
      return ctx.badRequest('Informations non valides.')
    }

    const artiste = await strapi.db.query('api::artiste.artiste').findOne({
      where: {slug: getSlug(data.alias)}
    })

    if (artiste) {
      return artiste
    } else {
      const newArtiste = await strapi.documents('api::artiste.artiste').create({
        data: {
          ...data
        }
      })
      return newArtiste
    }
  }

}))