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Package for validate options in loaders and plugins.
To begin, you'll need to install schema-utils
:
npm install schema-utils
schema.json
{
"type": "object",
"properties": {
"option": {
"type": "boolean"
}
},
"additionalProperties": false
}
import schema from "./path/to/schema.json";
import { validate } from "schema-utils";
const options = { option: true };
const configuration = { name: "Loader Name/Plugin Name/Name" };
validate(schema, options, configuration);
Type: String
JSON schema.
Simple example of schema:
{
"type": "object",
"properties": {
"name": {
"description": "This is description of option.",
"type": "string"
}
},
"additionalProperties": false
}
Type: Object
Object with options.
import schema from "./path/to/schema.json";
import { validate } from "schema-utils";
const options = { foo: "bar" };
validate(schema, { name: 123 }, { name: "MyPlugin" });
Allow to configure validator.
There is an alternative method to configure the name
andbaseDataPath
options via the title
property in the schema.
For example:
{
"title": "My Loader options",
"type": "object",
"properties": {
"name": {
"description": "This is description of option.",
"type": "string"
}
},
"additionalProperties": false
}
The last word used for the baseDataPath
option, other words used for the name
option.
Based on the example above the name
option equals My Loader
, the baseDataPath
option equals options
.
Type: Object
Default: "Object"
Allow to setup name in validation errors.
import schema from "./path/to/schema.json";
import { validate } from "schema-utils";
const options = { foo: "bar" };
validate(schema, options, { name: "MyPlugin" });
Invalid configuration object. MyPlugin has been initialised using a configuration object that does not match the API schema.
- configuration.optionName should be a integer.
Type: String
Default: "configuration"
Allow to setup base data path in validation errors.
import schema from "./path/to/schema.json";
import { validate } from "schema-utils";
const options = { foo: "bar" };
validate(schema, options, { name: "MyPlugin", baseDataPath: "options" });
Invalid options object. MyPlugin has been initialised using an options object that does not match the API schema.
- options.optionName should be a integer.
Type: Function
Default: undefined
Allow to reformat errors.
import schema from "./path/to/schema.json";
import { validate } from "schema-utils";
const options = { foo: "bar" };
validate(schema, options, {
name: "MyPlugin",
postFormatter: (formattedError, error) => {
if (error.keyword === "type") {
return `${formattedError}\nAdditional Information.`;
}
return formattedError;
},
});
Invalid options object. MyPlugin has been initialized using an options object that does not match the API schema.
- options.optionName should be a integer.
Additional Information.
schema.json
{
"type": "object",
"properties": {
"name": {
"type": "string"
},
"test": {
"anyOf": [
{ "type": "array" },
{ "type": "string" },
{ "instanceof": "RegExp" }
]
},
"transform": {
"instanceof": "Function"
},
"sourceMap": {
"type": "boolean"
}
},
"additionalProperties": false
}
import { getOptions } from "loader-utils";
import { validate } from "schema-utils";
import schema from "path/to/schema.json";
function loader(src, map) {
const options = getOptions(this);
validate(schema, options, {
name: "Loader Name",
baseDataPath: "options",
});
// Code...
}
export default loader;
import { validate } from "schema-utils";
import schema from "path/to/schema.json";
class Plugin {
constructor(options) {
validate(schema, options, {
name: "Plugin Name",
baseDataPath: "options",
});
this.options = options;
}
apply(compiler) {
// Code...
}
}
export default Plugin;
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