open-consul/ui/packages/consul-ui/app/utils/http/create-query-params.js

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export default function(encode) {
return function stringify(obj, parent) {
return Object.entries(obj)
.reduce(function(prev, [key, value], i) {
// if the value is undefined do nothing
if (typeof value === 'undefined') {
return prev;
}
let prop = encode(key);
// if we have a parent, prefix the property with that
if (typeof parent !== 'undefined') {
prop = `${parent}[${prop}]`;
}
// if the value is null just print the prop
if (value === null) {
return prev.concat(prop);
}
// anything nested, recur
if (typeof value === 'object') {
return prev.concat(stringify(value, prop));
}
// anything else print prop=value
return prev.concat(`${prop}=${encode(value)}`);
}, [])
.join('&');
};
}