如何编写将使用Express API的Azure函数 [英] How to write azure functions which will use express api

问题描述

我有天蓝色的功能， 在index.js中，我有以下代码

I have a azure function, In index.js i have the following code

module.exports = function (context, req) {

const createHandler = require('azure-function-express').createHandler;
const app = require('express')();

app.get("/home", (req, res) => {
    const y = { "name": "name", "dob": "ddmmyyyy" }
    context.res = y
    context.done()
});
module.exports = createHandler(app);

context.done();
};

我有function.json:

i have function.json :

    {
  "bindings": [
    {
      "authLevel": "anonymous",
      "type": "httpTrigger",
      "direction": "in",
      "name": "req",
      "route": "{*segments}"
    },
    {
      "type": "http",
      "direction": "out",
      "name": "res"
    }
  ],
  "disabled": false
}

我的azure函数中有上述文件，但是如果我按了api端点，我将无法获得任何输出，只是空白页. 我必须使用express来处理许多其他端点，而azure函数中是否有任何处理方法.

i have the above files in my azure function but i am not able get any output i just a blank page if i hit the api end point. i have to use express to handle many other end points is there any way to handle in azure functions.

当我使用Node.js本地应用程序设置时，我能够在单个模块中使用express并处理许多api端点，这在azure函数中是可能的吗?或者我必须为每个端点使用不同的功能

when i use nodejs local application setup, i am able to use express and handle many api end points with in a single module is that possible in azure functions? or i have to use different functions for each end point

推荐答案

请参见下面的代码.我们可以将Azure功能用作通用快递应用程序.

See code below. We can use Azure function as a common express app.

const createHandler = require('azure-function-express').createHandler;
const app = require('express')();

app.get("/home", (req, res) => {
    res.json({ "name": "name", "dob": "ddmmyyyy" });
});

app.get("/work", (req, res) => {
    res.json({ "name": req.query.name, "dob": "ddmmyyyy" });
});

module.exports = createHandler(app);

如果使用azure-function-express，则

module.exports = function (context, req)和context.done()不再有用.如果要使用其他上下文方法，请改用req.context.请参见 azure-function-express模块​​文档.

module.exports = function (context, req) and context.done() are no longer useful if azure-function-express is in use. If you want to use other method of context, use req.context instead. See azure-function-express module doc.

此外，Azure函数默认在路由中具有前缀"api"，如果不需要它(如上面的代码)，请将其更改为空host.json.

Besides, Azure function has a prefix "api" in route by default, if you don't need it(like code above), change it to empty your host.json.

如果您的函数运行时为〜2(测试版).

If your function runtime is ~2(beta).

{
  "version": "2.0",
  "extensions": {
    "http": {
        "routePrefix": ""
    }
  }
}

其他〜1

{
    "http": {
        "routePrefix": ""
    }
}

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