Node. js generates the HttpStatusCode helper class and publishes it to npm _ basic knowledge

This article introduces the use of Node. js is Node. js generates the HttpStatusCode helper class and releases it to npm. If you need it, you can refer to it. As a good Restfull Api, not only does it lie in the semantics, readability, power, and orthogonal of service URLs, as an http Status Code, it is also very important. A good Http Status Code provides a good response to the user. For example, 200 indicates normal success, 201 indicates successful creation, 409 conflict, and 404 indicates that the resource does not exist. Therefore, we are working on a node-based architecture. node is found in js + mongodb + angularjs demo. js express does not provide the corresponding auxiliary classes, but I do not like to fill the 201,404 class of things without hierarchical semantics everywhere, so I finally decided to write it myself, but I am also very lazy, what should I do if I do not like repeated hard work? Copy the code from the HttpStatusCode enumeration in c #, which I am most familiar with. In the end, node is used for mac convenience. js parses msdn documentation on httpstatuscode to generate node. js helper class.

The code is simple:

The Code is as follows:

Var http = require ('http ');

Var fs = require ('fs ');

Var $ = require ('jquery ');

Var output = "httpStatusCode/index. js? 6.1.3 ";

(Function (){



String. format = function (){

Var s = arguments [0];

For (var I = 0; I <arguments. length-1; I ++ ){

Var reg = new RegExp ("\\{" + I + "\\}", "gm ");

S = s. replace (reg, arguments [I + 1]);

}

Return s;

};




Var options = {

Host: 'msdn .microsoft.com ',

Port: 80,

Path: '/zh-cn/library/system.net. httpstatuscode. aspx'

};




Http. get (options, function (response ){

Var html = "";

Response. on ("data", function (chunk ){

Html + = chunk;

}). On ("end", function (){

Handler (html );

}). On ('error', function (e ){

Console. log ("Got error:" + e. message );

});




Function getHttpStatusCode (htmlString ){

Var $ doc = $ (html );

Var rows = $ doc. find ("table # memberList tr: gt (0 )");

Var status = {};

Rows. each (function (I, row ){

Status [$ (row). find ("td: eq (1)"). text ()] =

ParseInt ($ (row). find ("td: eq (2)"). text (). match (/\ d +/). toString ());

});

Return status;

};



Function generateCode (status ){

Var code = "";

Code + = "exports. httpStatusCode =" + JSON. stringify (status) + ";";

Return code;

};



Function writeFile (code ){

Fs. writeFile (output, code, function (err ){

If (err ){

Console. log (err );

} Else {

Console. log ("The file was saved" + output + "! ");

}

});

};




Function handler (html ){

Var status = getHttpStatusCode (html );

Var code = generateCode (status );

WriteFile (code );

};




});

})();

Code boarding at github: https://github.com/greengerong/node-httpstatuscode

The final generation class is:

The Code is as follows:

View Code
Exports. httpStatusCode = {
"Continue": 100,
"SwitchingProtocols": 101,
"OK": 200,
"Created": 201,
"Accepted": 202,
"Nonauthoritativeinfo": 203,
"NoContent": 204,
"ResetContent": 205,
"PartialContent": 206,
& Quot; MultipleChoices & quot;: 300,
"Ambiguous": 300,
"MovedPermanently": 301,
"Moved": 301,
"Found": 302,
"Redirect": 302,
"SeeOther": 303,
"RedirectMethod": 303,
"NotModified": 304,
"UseProxy": 305,
"Unused": 306,
"TemporaryRedirect": 307,
"RedirectKeepVerb": 307,
"BadRequest": 400,
"Unauthorized": 401,
"PaymentRequired": 402,
"Forbidden": 403,
"NotFound": 404,
"MethodNotAllowed": 405,
"NotAcceptable": 406,
"ProxyAuthenticationRequired": 407,
"RequestTimeout": 408,
"Conflict": 409,
"Gone": 410,
"LengthRequired": 411,
"PreconditionFailed": 412,
"RequestEntityTooLarge": 413,
"RequestUriTooLong": 414,
"UnsupportedMediaType": 415,
"RequestedRangeNotSatisfiable": 416,
"ExpectationFailed": 417,
"UpgradeRequired": 426,
"InternalServerError": 500,
"NotImplemented": 501,
"BadGateway": 502,
"ServiceUnavailable": 503,
"GatewayTimeout": 504,
"HttpVersionNotSupported": 505
};

Finally, considering that there may be a lot of people who are as lazy as I do, sharing this code to npm can be simple and practical. Here is a test demo:

The Code is as follows:

Var httpStatusCode = require ("httpstatuscode"). httpStatusCode;

Var toBeEqual = function (actual, expected ){

If (actual! = Expected ){

Throw (actual + "not equal" + expected );

}

};

ToBeEqual (httpStatusCode. OK, 200 );

ToBeEqual (httpStatusCode. Created, 201 );

ToBeEqual (httpStatusCode. BadRequest, 400 );

ToBeEqual (httpStatusCode. InternalServerError, 500 );




Console. log (httpStatusCode );

Console. log ("success ");

Lazy articles are always redundant texts in the code. I hope the code can describe everything. Thank you for reading this article.