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我正在嘗試構建一個小型流星應用程序。我有一種感覺，它不完全理解服務器 - 客戶端關係如何工作的結果。我試圖讓它工作幾個小時，並將其視爲設置它的唯一合理方法。這可能有助於補充說我是初學者。流星服務器端HTTP請求
值得一提的是，我在客戶端發出http請求時運行正常。
什麼是應該發生：
表單提交，表單中的文本發送到通過HTTP請求的API，JSON返回，解析，並返回一個值返回給用戶（他們給一個國家代碼，它返回一個邊界）。除此之外，我想將每個請求存儲在帶有時間戳的集合中。
任何幫助將不勝感激。
這裏是JS：
borders = new Mongo.Collection("borders");
if (Meteor.isClient) {
// This code only runs on the client
//set the session blank before submit action on form.
Template.hello.helpers({
borders: function() {
// return borders.find({});
// return borders.find({}, {limit: 1});
return Session.get("border");
}
});
Template.body.events({
"submit .new-task": function (event) {
// Prevent default browser form submit
event.preventDefault();
// Get value from form element
var countryCode = event.target.text.value;
//set form element variable in the session so it can be accessed on the server
session.set(countryCode)
//invoke the server method
Meteor.call("getID", function(error, results) {
console.log(results.content); //results.data should be a JSON object
});
}
});
}
//server-side code
if (Meteor.isServer) {
session.get(countryCode)
var url = "http://restcountries.eu/rest/v1/alpha/"+countryCode;
Meteor.methods({
getID: function() {
this.unblock();
HTTP.get(url, {timeout:30000}, function(error, response) {
var respJson = JSON.parse(response.content);
console.log(respJson)
Session.set("border",respJson["subregion"])
// Insert a task into the collection
borders.insert({
text: respJson["borders"],
createdAt: new Date() // current time
});
// Clear form
event.target.text.value = "";
});
}
});
}
錯誤，我得到當應用程序運行：
=> Started proxy.
=> Started MongoDB.
W20151203-17:09:54.345(-8)? (STDERR)
W20151203-17:09:54.346(-8)? (STDERR) /Users/me/.meteor/packages/meteor-tool/.1.1.10.1evms9b++os.osx.x86_64+web.browser+web.cordova/mt-os.osx.x86_64/dev_bundle/server-lib/node_modules/fibers/future.js:245
W20151203-17:09:54.347(-8)? (STDERR) throw(ex);
W20151203-17:09:54.347(-8)? (STDERR) ^
W20151203-17:09:54.347(-8)? (STDERR) ReferenceError: session is not defined
W20151203-17:09:54.347(-8)? (STDERR) at borderApp.js:38:7
W20151203-17:09:54.347(-8)? (STDERR) at /Users/me/Dev/Web/borderApp/.meteor/local/build/programs/server/app/borderApp.js:67:4
W20151203-17:09:54.347(-8)? (STDERR) at /Users/me/Dev/Web/borderApp/.meteor/local/build/programs/server/boot.js:242:10
W20151203-17:09:54.347(-8)? (STDERR) at Array.forEach (native)
W20151203-17:09:54.347(-8)? (STDERR) at Function._.each._.forEach (/Users/me/.meteor/packages/meteor-tool/.1.1.10.1evms9b++os.osx.x86_64+web.browser+web.cordova/mt-os.osx.x86_64/dev_bundle/server-lib/node_modules/underscore/underscore.js:79:11)
W20151203-17:09:54.347(-8)? (STDERR) at /Users/me/Dev/Web/borderApp/.meteor/local/build/programs/server/boot.js:137:5
這是我使用了前端的HTML：
<head>
<title>Todo List</title>
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.5/css/bootstrap.min.css">
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.5/css/bootstrap-theme.min.css">
</head>
<body>
<div class="form-group">
<header>
<h1>Todo List</h1>
<form class="new-task">
<input class="input-lg form-control" type="text" name="text" placeholder="Type to add new tasks" />
</form>
</header>
<H3>
{{> hello}}
</h3>
</div>
</body>
<template name="hello">
<p>{{borders}}</p>
</template>
<template name="button">
<button type="submit" class="btn btn-danger">Find Borders →</button>
</template>