A simple instantiator for json schemas.
npm install json-schema-instantiator``
npm install json-schema-instantiator
`
bower install angular-schema-instantiator
javascript
var instantiator = require('json-schema-instantiator');...
var schema = {
"type": "object",
"properties": {
"title": {
"type": "string",
"default": "Example"
},
"description": {
"type": "string"
},
"quantity": {
"type": "number"
},
"endDate": {
"type": "string",
"format": "date"
}
},
"required": ["title"]
};
instance = instantiator.instantiate(schema);
// instance === { title: "Example", description: "", quantity: 0, endDate: "" }
instance = instantiator.instantiate(schema, {requiredPropertiesOnly: false});
// instance === { title: "Example", description: "", quantity: 0, endDate: "" }
instance = instantiator.instantiate(schema, {requiredPropertiesOnly: true});
// instance === { title: "Example" }
// Override default values for a given type with a static value
instance = instantiator.instantiate(schema, { defaults: { number: 42 } });
// instance === { title: "Example", description: "", quantity: 42, endDate: "" }
// Override default values for a given type function that returns a value
instance = instantiator.instantiate(schema, {
defaults: {
// Function that receives current property/val and returns a value
string: function (val) {
var format = val.format;
if (format && format === "date") {
return new Date(2021, 0, 1);
}
return "";
},
},
});
// instance === { title: "Example", description: "", quantity: 0, endDate: new Date(2021, 0, 1) }
`$3
Add the sources to index.html:
Include the module:
javascript
angular.module('myApp', ['schemaInstantiator'])...
`Inject the InstantiatorService and use it:
javascript
....controller({
MyCtrl: ['InstantiatorService', function(Instantiator) {
var schema = {
type: "string",
default: "Hello!"
};
console.log(Instantiator.instantiate(schema));
// Hello!
}]
})
...
``