我有一个网页,我想使用dialogflow chatbot.这是一个自定义聊天窗口,所以我不想使用一次点击集成.我可以使用javascript/ajax 访问聊天代理V1 API(通过在请求标头中传递客户端访问令牌).
但我不知道如何在V2 API中做到这一点.对话框流程文档对我来说并不清楚(我通过引用此链接设置了身份验证.我不知道如何继续进行).我也不熟悉谷歌云.因此,非常感谢一个工作样本或一步一步如何访问API指南.
我正在开发一个 angular 4 应用程序。我有一个 base64 编码的图像。我用 node.js 将它保存在文件系统中。
if (body.profilepic != "") {
let base64Data = body.profilepic.split(';base64,').pop();
fs.writeFile("out.png", base64Data, 'base64', function(err) {
if (!err) {
console.log("saved file")
}
});
}
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问题是我无法检测到我正在保存的图像的文件类型。现在它只保存 png。
如何检测我收到的图像字符串的文件类型?
我得到的 base64 编码字符串是这样的:
data:image/png;base64,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
Run Code Online (Sandbox Code Playgroud) 我有一个 angular 4 应用程序。我使用 JWT 令牌进行身份验证。一切正常。但是我给 JWT 令牌的令牌过期时间是 1 小时。一旦令牌在服务器端过期,我想从前端应用程序中注销用户。在节点后端,我使用快速中间件通过检查所有请求是否包含有效令牌来处理此问题。有没有办法做这个有角度的一面?
我正在使用 azure blob 触发器来识别容器何时更新。触发器工作正常。但它只返回 blob 文件(如 Base 64 字符串)。但我如何在此触发器中获取 blob 文件的 url。
函数.js
{
"disabled": false,
"bindings": [
{
"name": "readText",
"type": "blobTrigger",
"direction": "in",
"path": "pngs/{name}",
"connection":"STORAGEConnectionString"
}
]
}
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索引.js
context.log('Node.js Blob trigger function processed', context.bindings);
Run Code Online (Sandbox Code Playgroud) 我正在开发一个角度4应用程序.一旦用户想要登录系统,它就会向服务器发送http请求,服务器验证用户,并发送带有身份验证密钥和其他用户详细信息的reposnce.我使用本地存储来保存这些信息
login() {
if (this.loginForm.valid) {
this.serviceUserService.authenticate(this.loginForm).subscribe(response => {
if (response.message != "_err") {
//saving the current user in localstorage
localStorage.setItem('currentUser', JSON.stringify(response.body));
this.router.navigateByUrl('/');
} else {
alert("invalid login. Please try again")
}
}, err => {
console.log(err);
})
}
}
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看起来这localStorage.setItem()
是一个异步函数.因此,在将当前存储中的当前用户保存之前,它会重定向到主页面.但由于令牌未保存在本地存储中,因此http请求不起作用.我如何等待localStorage.setItem()
完成它的任务,然后将用户发送到主页.
我发现此代码可用于查找当月的第一个日期和最后一个日期。
var date = new Date();
var firstDay = new Date(date.getFullYear(), date.getMonth(), 1);
var lastDay = new Date(date.getFullYear(), date.getMonth() + 1, 0);
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今天是 11/1/2018
我将这段代码用于我正在为我的一个项目开发的日历。即使它应该返回该月的第一天,因为2018-01-01T18:30:00.000Z
它返回第一天为2017-12-31T18:30:00.000Z
,最后日期为2018-01-30T18:30:00.000Z
。
但一月有31天。那么这段代码有什么问题呢?
我从 stackoverflow问题中找到了代码
你好,我正在写一个小 shell 脚本。在那里我使用curl命令来调用api。它返回的是扫描的状态。
{"status":"14"}
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我想获取这个状态并检查它是否小于100;这就是我到目前为止所做的
a=0
while [ $a -lt 100 ]
do
curlout=$(curl "http://localhost:9090/JSON/spider/view/status/?zapapiformat=JSON&scanId=0");
echo "$curlout";
a=`expr $a + 1`
done
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我想要做的是将状态分配给 $a; 如何读取这个json以获取shell脚本中的值