res.api

res.api is an express middleware for render json api , it convention over api format like this :

{
  data: {

  },
  status: {
    code : x,
    msg  : 'some message'
  }
}

more see at

Install

npm install --save res.api

Usages

var express       = require('express');
var res_api       = require('res.api');

var app = new express();
app.use(res_api);

then in some route

way 1：最通用的api接口

return res.api(404 , err, {
  code : 1,
  msg  : 'delete failed!'
});

the response header is :

HTTP/1.1 404 Not Found
X-Powered-By: Express
Access-Control-Allow-Origin: *
Access-Control-Allow-Methods: GET, POST
Access-Control-Allow-Headers: X-Requested-With,content-type, Authorization
Content-Type: application/json; charset=utf-8
Content-Length: 239
ETag: W/"ef-6e66e2da"
set-cookie: connect.sid=s%3ApwL-xMS2tCh3qgqp_wyIqukbUKFeJv6S.2EB4449yTlxRWZrRyBXRc9J6Pv%2BNz4M7j35VLIlxE6M; Path=/; Expires=Wed, 17 Jun 2015 15:11:28 GMT; HttpOnly
Date: Wed, 17 Jun 2015 14:41:28 GMT
Connection: keep-alive

response json data

{
  "data": {
    "message": "Cast to ObjectId failed for value \"557a3e326221681d474cf078sdsds\" at path \"_id\"",
    "name": "CastError",
    "kind": "ObjectId",
    "value": "557a3e326221681d474cf078sdsds",
    "path": "_id"
  },
  "status": {
    "code": 1,
    "msg": "delete failed!"
  }
}

way 2：返回成功带有状态的json数据

return res.api(data, {
  code : 1,
  msg  : 'delete failed!'
});

the response header is :

HTTP/1.1 200 Ok
X-Powered-By: Express
Access-Control-Allow-Origin: *
Access-Control-Allow-Methods: GET, POST
Access-Control-Allow-Headers: X-Requested-With,content-type, Authorization
Content-Type: application/json; charset=utf-8
Content-Length: 239
ETag: W/"ef-6e66e2da"
set-cookie: connect.sid=s%3ApwL-xMS2tCh3qgqp_wyIqukbUKFeJv6S.2EB4449yTlxRWZrRyBXRc9J6Pv%2BNz4M7j35VLIlxE6M; Path=/; Expires=Wed, 17 Jun 2015 15:11:28 GMT; HttpOnly
Date: Wed, 17 Jun 2015 14:41:28 GMT
Connection: keep-alive

response json data

{
  "data": {
    "message": "Cast to ObjectId failed for value \"557a3e326221681d474cf078sdsds\" at path \"_id\"",
    "name": "CastError",
    "kind": "ObjectId",
    "value": "557a3e326221681d474cf078sdsds",
    "path": "_id"
  },
  "status": {
    "code": 1,
    "msg": "delete failed!"
  }
}

way 3：最常用的成功返回json数据

return res.api(data);

the response header is :

HTTP/1.1 200 Ok
X-Powered-By: Express
Access-Control-Allow-Origin: *
Access-Control-Allow-Methods: GET, POST
Access-Control-Allow-Headers: X-Requested-With,content-type, Authorization
Content-Type: application/json; charset=utf-8
Content-Length: 239
ETag: W/"ef-6e66e2da"
set-cookie: connect.sid=s%3ApwL-xMS2tCh3qgqp_wyIqukbUKFeJv6S.2EB4449yTlxRWZrRyBXRc9J6Pv%2BNz4M7j35VLIlxE6M; Path=/; Expires=Wed, 17 Jun 2015 15:11:28 GMT; HttpOnly
Date: Wed, 17 Jun 2015 14:41:28 GMT
Connection: keep-alive

response json data

{
  "data": {
    "message": "Cast to ObjectId failed for value \"557a3e326221681d474cf078sdsds\" at path \"_id\"",
    "name": "CastError",
    "kind": "ObjectId",
    "value": "557a3e326221681d474cf078sdsds",
    "path": "_id"
  },
  "status": {
    "code": 0,
    "msg": "request success!"
  }
}

way 4：快捷错误处理

return res.api_error(err);

the response header is :

HTTP/1.1 200 Ok
X-Powered-By: Express
Access-Control-Allow-Origin: *
Access-Control-Allow-Methods: GET, POST
Access-Control-Allow-Headers: X-Requested-With,content-type, Authorization
Content-Type: application/json; charset=utf-8
Content-Length: 239
ETag: W/"ef-6e66e2da"
set-cookie: connect.sid=s%3ApwL-xMS2tCh3qgqp_wyIqukbUKFeJv6S.2EB4449yTlxRWZrRyBXRc9J6Pv%2BNz4M7j35VLIlxE6M; Path=/; Expires=Wed, 17 Jun 2015 15:11:28 GMT; HttpOnly
Date: Wed, 17 Jun 2015 14:41:28 GMT
Connection: keep-alive

response json data

{
  "data": {
  },
  "status": {
    "code": -1,
    "msg": "api error"
  }
}

配置项

res.api_error_code; 默认是200
res.api_error_status_code; 默认是-1
res.api_error_status_msg; 默认是'api error'

在return res.api_error(err);之前设置

res.api_error_code = 400;
return res.api_error(err);

the response header is :

HTTP/1.1 400 Ok
X-Powered-By: Express
Access-Control-Allow-Origin: *
Access-Control-Allow-Methods: GET, POST
Access-Control-Allow-Headers: X-Requested-With,content-type, Authorization
Content-Type: application/json; charset=utf-8
Content-Length: 239
ETag: W/"ef-6e66e2da"
set-cookie: connect.sid=s%3ApwL-xMS2tCh3qgqp_wyIqukbUKFeJv6S.2EB4449yTlxRWZrRyBXRc9J6Pv%2BNz4M7j35VLIlxE6M; Path=/; Expires=Wed, 17 Jun 2015 15:11:28 GMT; HttpOnly
Date: Wed, 17 Jun 2015 14:41:28 GMT
Connection: keep-alive

response json data

{
  "data": {
  },
  "status": {
    "code": -1,
    "msg": "api error"
  }
}

jsonp support

res.is_jsonp = true
return res.api(data);

video

录了一段7分钟的视频：

http://pan.baidu.com/s/1eQo4xqi

Contributing

Fork it
Create your feature branch (git checkout -b my-new-feature)
Commit your changes (git commit -am 'Add some feature')
Push to the branch (git push origin my-new-feature)
Create new Pull Request

Version History

v1.0.11 支持自定义api_error信息
v1.0.6 add api_error()
v1.0.0 初始化版本

欢迎fork和反馈

write by i5ting shiren1118@126.com

如有建议或意见，请在issue提问或邮件

License

this repo is released under the MIT License.

License

moajs/res.api

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