feat: rewrite

examples/example.js

@@ -26,21 +26,20 @@ avvio
       .use(b)
     setTimeout(cb, 42)
   })
-  .after(function (err, cb) {
-    if (err) {
-      console.log('something bad happened')
-      console.log(err)
-    }
+  .then((avvio) => {
     console.log('after first and second')
-    cb()
-  })
-  .use(duplicate, { count: 4 })
-  .use(third)
-  .ready(function (err) {
-    if (err) {
-      throw err
-    }
-    console.log('application booted!')
+    avvio
+      .use(duplicate, { count: 4 })
+      .use(third)
+      .ready(function (err) {
+        if (err) {
+          throw err
+        }
+        console.log('application booted!')
+      })
+  }, (error) => {
+    console.log('something bad happened')
+    console.log(error)
   })
 
 avvio.on('preReady', () => {

lib/errors.js

@@ -2,37 +2,11 @@
 
 const { createError } = require('@fastify/error')
 
-module.exports = {
-  AVV_ERR_EXPOSE_ALREADY_DEFINED: createError(
-    'AVV_ERR_EXPOSE_ALREADY_DEFINED',
-    "'%s' is already defined, specify an expose option for '%s'"
-  ),
-  AVV_ERR_ATTRIBUTE_ALREADY_DEFINED: createError(
-    'AVV_ERR_ATTRIBUTE_ALREADY_DEFINED',
-    "'%s' is already defined"
-  ),
-  AVV_ERR_CALLBACK_NOT_FN: createError(
-    'AVV_ERR_CALLBACK_NOT_FN',
-    "Callback for '%s' hook is not a function. Received: '%s'"
-  ),
-  AVV_ERR_PLUGIN_NOT_VALID: createError(
-    'AVV_ERR_PLUGIN_NOT_VALID',
-    "Plugin must be a function or a promise. Received: '%s'"
-  ),
-  AVV_ERR_ROOT_PLG_BOOTED: createError(
-    'AVV_ERR_ROOT_PLG_BOOTED',
-    'Root plugin has already booted'
-  ),
-  AVV_ERR_PARENT_PLG_LOADED: createError(
-    'AVV_ERR_PARENT_PLG_LOADED',
-    "Impossible to load '%s' plugin because the parent '%s' was already loaded"
-  ),
-  AVV_ERR_READY_TIMEOUT: createError(
-    'AVV_ERR_READY_TIMEOUT',
-    "Plugin did not start in time: '%s'. You may have forgotten to call 'done' function or to resolve a Promise"
-  ),
-  AVV_ERR_PLUGIN_EXEC_TIMEOUT: createError(
-    'AVV_ERR_PLUGIN_EXEC_TIMEOUT',
-    "Plugin did not start in time: '%s'. You may have forgotten to call 'done' function or to resolve a Promise"
-  )
-}
+module.exports.AVV_ERR_EXPOSE_ALREADY_DEFINED = createError(
+  'AVV_ERR_EXPOSE_ALREADY_DEFINED',
+  "'%s' is already defined, specify an expose option for '%s'"
+)
+module.exports.AVV_ERR_CALLBACK_NOT_FN = createError(
+  'AVV_ERR_CALLBACK_NOT_FN',
+  "Callback for '%s' hook is not a function. Received: '%s'"
+)