在关于如何“ Write an API”的教程之后,我似乎陷入了困境,无法超越如何使生成的API密钥显示在模板中。
我在帮助器中有一个查询APIKeys.find().fetch()
,该查询应正确反映在html模板中,但事实并非如此。我花了几个小时查看我的代码,但没有注意到我的代码中有任何错误。
我对Meteor并不陌生,这使它变得更加烦人!
请帮助!
找到以下模板代码: /client/main.html
<template name="apiKey">
<div class="row">
<div class="col-xs-12 col-sm-6">
<h4 class="page-header">Your API Key</h4>
<p>To gain access to the Pizza API, use the following API Key.
Make sure to keep it super safe! <strong>If you'd like to
generate a new key, click the "refresh" icon on the field
below</strong>.</p>
<label class="sr-only" for="apiKey">Your API Key</label>
<div class="input-group">
<input type="text" readonly class="form-control" id="apiKey" placeholder="API Key" value="{{apiKey}}">
<div class="input-group-addon regenerate-api-key"><span class="glyphicon glyphicon-refresh"></span></div>
</div>
</div>
在上面的模板中,value="{{apiKey}}"
下的模板中将呈现NOTHING。我不明白为什么会这样。
在我的助手代码下找到: /client/main.js
import '../imports/api/tasks.js';
Template.apiKey.helpers({
apiKey: function() {
var apiKey = APIKeys.findOne();
if ( apiKey ) {
return apiKey.key;
console.log("Sucessful");
}
else {
console.log("Failed! Can't find: APIKeys.findOne()");
}
}
});
以上帮助程序代码在控制台Failed! Can't find: APIKeys.findOne()
中呈现此代码。
此外,当我在控制台中查询APIKeys.find().fetch()
时,我得到了:
[]
在我的onCreated代码下找到: /client/main.js
Template.apiKey.onCreated(function(){
console.log("Your in onCreated!");
this.subscribe( "APIKey" );
});
上面的onCreated代码在控制台Your in onCreated!
中呈现此代码。
在我的事件代码下面找到触发生成新API密钥的代码: /client/main.js
import '../imports/api/tasks.js';
Template.apiKey.events({
'click .regenerate-api-key': function( ){
var userId = Meteor.userId();
confirmRegeneration = confirm( "Are you sure? This will
invalidate your current key!" );
if ( confirmRegeneration ) {
Meteor.call( "regenerateApiKey", userId, function( error, response ) {
if ( error ) {
alert( error.reason, "danger" );
}
else {
alert( "All done! You have a new API key: " +response );
console.log("Response is: " +response);
}
});
}
}
});
上面的事件代码将显示一个弹出框,其中包含:All done! You have a new API key: 0
。控制台也会渲染:Response is: 0
。
在regenerateApiKey
方法代码 /server/main.js
Meteor.methods({
regenerateApiKey: function( userId ){
check( userId, Meteor.userId() );
var newKey = Random.hexString( 32 );
console.log(">>>: " +newKey);
try {
var keyId = APIKeys.update( { "owner": userId }, {
$set: {
"key": newKey
}
});
console.log(">>> newKey : " +keyId);
return keyId;
} catch(exception) {
console.log("FAILED UPDATE")
return exception;
}
}
});
上面的方法代码在终端中显示以下内容:
>>>: af3233a999308e39f9471b790e121cf5
>>> newKey : 0
我已经将代码中的问题缩小了。 keyId
变量等于“ 0”表明APIKeys集合没有得到更新。谁能解释为什么会这样?
我提供了更多信息,希望对您有所帮助。
在我订阅的代码下方找到 /client/main.js
Router.route('/apiKey', {
template: 'apiKey',
waitOn: function(){
return Meteor.subscribe('APIKey');
}
});
在我发布 /server/main.js
的代码下面找到Meteor.publish( 'APIKey', function(){
var user = this.userId;
var data = APIKeys.find( { "owner": user }, {fields: { "key": 1 } } );
if ( data ) {
console.log("User: " +user+ " data is: " +data);
console.log("Was able to find data in Publish APIKey!");
console.log(APIKeys.find().fetch());
return data;
}
return this.ready();
});
上面的发布代码在终端中显示以下内容:
User: xELzNtMQp7u9FpZib data is: [object Object]
Was able to find data in Publish APIKey!
[]
在我声明集合 imports / api / tasks.js
的代码下面找到import { Mongo } from "meteor/mongo";
import { Template } from 'meteor/templating';
import { ReactiveVar } from 'meteor/reactive-var';
global.APIKeys = new Meteor.Collection("apiKeys");
/*
* Allow
*/
APIKeys.allow({
insert: function(){
// Disallow inserts on the client by default.
return false;
},
update: function(){
// Disallow updates on the client by default.
return false;
},
remove: function(){
// Disallow removes on the client by default.
return false;
}
});
/*
* Deny
*/
APIKeys.deny({
insert: function(){
// Deny inserts on the client by default.
return true;
},
update: function(){
// Deny updates on the client by default.
return true;
},
remove: function(){
// Deny removes on the client by default.
return true;
}
});
答案 0 :(得分:2)
问题似乎是您尝试更新它时数据库中没有任何键
尝试将APIKeys.update
换成APIKeys.upsert
,如果不存在则创建密钥。
try {
var keyId = APIKeys.upsert( { "owner": userId }, {
$set: {
"key": newKey
}
});