@vtex/babel-plugin-react-intl
v5.1.18
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Extracts string messages for translation from modules that use React Intl.
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babel-plugin-react-intl
Extracts string messages for translation from modules that use React Intl.
Dependencies
React Intl
This Babel plugin works with React Intl v2.x
Babel
- 3.x of this plugin works with Babel 7
- 2.x works with Babel 6
- 1.x works with Babel 5
Installation
$ npm install babel-plugin-react-intl
Usage
This Babel plugin only visits ES6 modules which import
React Intl.
The default message descriptors for the app's default language will be extracted from: defineMessages()
, <FormattedMessage>
, and <FormattedHTMLMessage>
; all of which are named exports of the React Intl package.
If a message descriptor has a description
, it'll be removed from the source after it's extracted to save bytes since it isn't used at runtime.
Via .babelrc
(Recommended)
.babelrc
{
"plugins": [
[
"react-intl",
{
"messagesDir": "./build/messages/"
}
]
]
}
Options
messagesDir
: The target location where the plugin will output a.json
file corresponding to each component from which React Intl messages were extracted. If not provided, the extracted message descriptors will only be accessible via Babel's API.extractSourceLocation
: Whether the metadata about the location of the message in the source file should be extracted. Iftrue
, thenfile
,start
, andend
fields will exist for each extracted message descriptors. Defaults tofalse
.moduleSourceName
: The ES6 module source name of the React Intl package. Defaults to:"react-intl"
, but can be changed to another name/path to React Intl.overrideIdFn
: A function with the signature(id: string, defaultMessage: string, description: string|object) => string
which allows you to override the ID both in the extracted javascript and messages.removeDefaultMessage
: RemovedefaultMessage
field in generated js after extraction.additionalComponentNames
: Additional component names to extract messages from, e.g:['FormattedFooBarMessage']
. NOTE: By default we check for the fact thatFormattedMessage
&FormattedHTMLMessage
are imported frommoduleSourceName
to make sure variable alias works. This option does not do that so it's less safe.extractFromFormatMessageCall
: Opt-in to extract fromintl.formatMessage
call with the same restrictions, e.g: has to be called with object literal such asintl.formatMessage({ id: 'foo', defaultMessage: 'bar', description: 'baz'})
Via Node API
The extract message descriptors are available via the metadata
property on the object returned from Babel's transform()
API:
require('@babel/core').transform('code', {
plugins: ['react-intl'],
}); // => { code, map, ast, metadata['react-intl'].messages };