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# require rules to implement a meta.type property (require-meta-type)
ESLint v5.9.0 introduces a new `--fix-type` option for the command line interface. This option allows users to filter the type of fixes applied when using `--fix`.
Fixes in custom rules will not be applied when using `--fix-type` unless they include a meta.type field.
## Rule Details
This rule aims to require ESLint rules to have a valid `meta.type` property.
Examples of **incorrect** code for this rule:
```js
/* eslint eslint-plugin/require-meta-type: error */
module.exports = {
meta: {},
create: function(context) {
// ...
}
};
module.exports = {
meta: {type: 'invalid'},
create: function(context) {
// ...
}
};
```
Examples of **correct** code for this rule:
```js
/* eslint eslint-plugin/require-meta-type: error */
module.exports = {
meta: {type: 'problem'},
create: function(context) {
// ...
}
};
```
## Further Reading
* [command-line-interface#--fix-type](https://eslint.org/docs/user-guide/command-line-interface#--fix-type)
* [working-with-rules#rule-basics](https://eslint.org/docs/developer-guide/working-with-rules#rule-basics)
* [ESLint v5.9.0 released](https://eslint.org/blog/2018/11/eslint-v5.9.0-released#the-fix-type-option)
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