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path: root/deps/npm/node_modules/npm-registry-client/lib/logout.js
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module.exports = logout

var assert = require('assert')
var url = require('url')

function logout (uri, params, cb) {
  assert(typeof uri === 'string', 'must pass registry URI to logout')
  assert(params && typeof params === 'object', 'must pass params to logout')
  assert(typeof cb === 'function', 'must pass callback to star')

  var auth = params.auth
  assert(auth && typeof auth === 'object', 'must pass auth to logout')
  assert(typeof auth.token === 'string', 'can only log out for token auth')

  uri = url.resolve(uri, '-/user/token/' + auth.token)
  var options = {
    method: 'DELETE',
    auth: auth
  }

  this.log.verbose('logout', 'invalidating session token for user')
  this.request(uri, options, cb)
}