我有一个简单的 http 客户端模块 (api.js),它返回一个 promise ,如下所示:
exports.endpoint = '';
exports.GET = function(args){
args.method = 'GET';
args.uri = this.endpoint + args.uri;
return asyncApiCall(args);
};
exports.POST = function(args){
args.method = 'POST';
args.uri = this.endpoint + args.uri;
return asyncApiCall(args);
};
exports.PUT = function(args){
args.method = 'PUT';
args.uri = this.endpoint + args.uri;
return asyncApiCall(args);
};
exports.DELETE= function(args){
args.method = 'DELETE';
args.uri = this.endpoint + args.uri;
return asyncApiCall(args);
};
var asyncApiCall = function(args){
var rp = require('request-promise');
var options = {
method: args.method,
uri: args.uri,
body : args.body,
json: args.json
}
return rp(options);
};
我这样使用模块:
var api = require('./api.js');
var args = {
uri : '/posts'
}
api.endpoint = 'http://localhost:3000';
api.GET(args)
.then(function(res){
console.log(res);
}, function(err){
console.log(err);
});
现在,我想尽可能地改进模块。有没有办法不重复export.functionName?我在 NodeJS 中找到了 module.exports,但我不确定在这种情况下如何使用它。如何在 asyncApiCall 函数中设置端点变量一次,而不是在返回 asyncApiCall 的所有其他函数中设置一次?
最佳答案
另一种风格:
var rp = require('request-promise'); // Put it here so you don't have to require 1 module so many times.
var asyncApiCall = function(args) {
var options = {
method: args.method,
uri: args.uri,
body : args.body,
json: args.json
};
return rp(options);
};
// Let's hack it.
var endpoint = '';
var apis = {};
['GET', 'POST', 'PUT', 'DELETE'].forEach(function(method) {
apis[method] = function(args) {
args.method = method;
args.uri = endpoint + args.uri;
return asyncApiCall(args);
}
});
module.exports = apis;
module.exports.endpoint = '';
关于javascript - NodeJS 模块导出,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/33620638/