Files
core_ng/server/util/APIPathGen.js
T
2023-08-05 12:12:18 +00:00

68 lines
1.9 KiB
JavaScript

export function APIPathGen(obj, callback, path, pathParams) {
return new Proxy(obj, {
get(target, key) {
let nextPath;
if (path === undefined) {
nextPath = [key.toString()];
}
else {
nextPath = [...path, key.toString()];
}
if (pathParams !== undefined) {
pathParams = { ...pathParams };
}
const varType = target.__nextVarType;
let varKey = target.__nextVarKey;
let next;
if (varType !== undefined && varKey !== undefined) {
if(varType == 'number'){
if(key != Number(key)){
throw `${key} is not ${varType}`;
}
key = Number(key);
}
else if ((typeof key) !== varType) {
throw `${key} is not ${varType}, but ${typeof key}`;
}
if(pathParams === undefined){
pathParams = {}
}
pathParams[varKey] = key;
nextPath.pop();
next = target.next;
}
else if (key in target) {
next = target[key];
}
else {
throw `${nextPath} is not exists`;
}
if (typeof (next) === 'function') {
return callback(nextPath, next, pathParams);
}
return APIPathGen(next, callback, nextPath, pathParams);
}
})
}
//generic 인자로 '자동'을 주려면 생략해야하므로 2단 호출
export function StrVar(key) {
return (next) => {
return {
__nextVarType: 'string',
__nextVarKey: key,
next
}
}
}
export function NumVar(key, next) {
return {
__nextVarType: 'number',
__nextVarKey: key,
next
}
}