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serializeJSON.flow.js
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serializeJSON.flow.js
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// @flow
function serializeJSON(data: Object = {}): string {
return Object
.keys(data)
.reduce((stack, key:string) => {
const
value: any = data[key],
values = serializeValue(key, value)
if (values) stack.push(...values)
return stack
}, [])
.join('&')
}
function serializeValue(name: string, value): Array<string> {
name = !name.includes('[') ? encodeURIComponent(name) : name
if (value === null || value === undefined) {
return serializeEmpty(name)
}
switch(value.constructor) {
case String:
return serializeString(name, value)
case Number:
return serializeNumber(name, value)
case Boolean:
return serializeBoolean(name, value)
case Object:
return serializeNesting(name, value)
case Array:
value = Object.assign({}, value)
return serializeNesting(name, value)
default:
return serializeString(name, value)
}
}
function serializeEmpty(name) {
return [name + '=']
}
function serializeString(name, input: string) {
return [name + '=' + encodeURIComponent(input)]
}
function serializeNumber(name, input: number) {
return [name + '=' + input]
}
function serializeBoolean(name, input: boolean) {
return [name + '=' + (input ? 1 : 0)]
}
function serializeNesting(name, input: Object){
const stack = []
Object.keys(input).forEach(key => {
const
innerName: string = name + '[' + encodeURIComponent(key) + ']',
value: any = input[key],
renderedValues = serializeValue(innerName, value)
stack.push(...renderedValues)
})
return stack
}
export default serializeJSON