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Amazon S3 direct file upload from client browser - private key disclosure
...mplementing a direct file upload from client machine to Amazon S3 via REST API using only JavaScript, without any server-side code. All works fine but one thing is worrying me...
...
How to implement the activity stream in a social network
... And from there, how do I actually CREATE an activity stream with incoming API JSON? These are such basic questions, but I couldn't find any answers online. If you can help out, I would truly appreciate it. Thank you!
– hiswendy
Jul 7 '17 at 23:25
...
In Firebase, is there a way to get the number of children of a node without loading all the node dat
... how I might implement it.
This hinges on the fact that the Firebase REST API offers a shallow=true parameter.
Assume you have a post object and each one can have a number of comments:
{
"posts": {
"$postKey": {
"comments": {
...
}
}
}
}
You obviously don't want to fetch all...
Android -Starting Service at Boot Time
... answering here as well.
Since WakefulBroadcastReceiver is deprecated in api 26 it is recommended for API Levels below 26
You need to obtain a wake lock . Luckily, the Support library gives us a class to do this:
public class SimpleWakefulReceiver extends WakefulBroadcastReceiver {
@Overri...
How to implement a rule engine?
...t generating code on the fly was possible even before the Expression trees API was introduced, using Reflection.Emit. The method LambdaExpression.Compile() uses Reflection.Emit under the covers (you can see this using ILSpy).
...
How to use web-fonts legally? [closed]
...
You can use all fonts of Google Font API.
From the FAQ:
Can I use the Font API on any page?
Yes. All the fonts in the Google Font
Directory are licensed under open
source licenses that let you use them
on any website, from a private blog to
a b...
ZMQ: 基本原理 - 开源 & Github - 清泛网 - 专注C++内核技术
...息。 拓扑建立和消息路由的分离很好地映射到BSD套接字API上（bind/connect和send/recv)。 现在，学术方面的争论甚至更加重要。使用ØMQ该做什么，不该做什么。 底层的协议,比如TCP,允许你发送数据给特定的终端节点。ØMQ构建在底层...
How to handle configuration in Go [closed]
...e the error was, various edge cases and what not.
For base configuration (api keys, port numbers, ...) I've had very good luck with the gcfg package. It is based on the git config format.
From the documentation:
Sample config:
; Comment line
[section]
name = value # Another comment
flag # implic...
Prevent dialog dismissal on screen rotation in Android
...().show(getSupportFragmentManager(), "tag"); // or getFragmentManager() in API 11+
This answer helps explain these other three questions (and their answers):
Android Best way of avoid Dialogs to dismiss after a device rotation
Android DialogFragment vs Dialog
How can I show a DialogFragment usin...
Triggering HTML5 Form Validation
... native validation UI, but you can easily take advantage of the validation API on arbitrary input elements:
$('input').blur(function(event) {
event.target.checkValidity();
}).bind('invalid', function(event) {
setTimeout(function() { $(event.target).focus();}, 50);
});
The first event fire...