cURL equivalent in Node js

Question

I m looking to use information from an HTTP request using Node js  i e  call a remote web service and echo the response to the client    In PHP I would have used cURL to do this   What is the best practice in Node

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I ended up using the grunt-shell library.

Here is my source gist for my fully implemented Grunt task for anyone else thinking about working with the EdgeCast API. You'll find in my example that I use a grunt-shell to execute the curl command which purges the CDN.

This was that I ended up with after spending hours trying to get an HTTP request to work within Node. I was able to get one working in Ruby and Python, but did not meet the requirements of this project.

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you can easily use request module   https   www npmjs com package request  Sample code   var request   require  request    request  http   www google com   function  error  response  body      if   error  amp  amp  response statusCode    200        console log body     Show the HTML for the Google homepage         else       console log  Error   response statusCode

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The above examples work but don t go so far as to really deal with a real world example  i e  when you process data coming in multiple chunks  One thing you need to make sure of is that you have an  on chunk  handler that push s the data into an array  fastest way to do this in JS  and an  on end  handler that joins them all together so you can return it   This is especially necessary when you re working with big requests  5000  lines  and the server sends a bunch of data at you   Here s an example in one of my programs  coffeescript    https   gist github com 1105888

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You can use request npm module   Super simple to use  Request is designed to be the simplest way possible to make http calls  It supports HTTPS and follows redirects by default   var request   require  request    request  http   www google com   function  error  response  body      console log  error    error      Print the error if one occurred   console log  statusCode    response  amp  amp  response statusCode      Print the response status code if a response was received   console log  body    body      Print the HTML for the Google homepage

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Uses reqclient  it s a small client module on top of request that allows you to log all the activity with cURL style  optional  for development environments   Also has nice features like URL and parameters parsing  authentication integrations  cache support  etc   For example  if you create a client object an do a request   var RequestClient   require  reqclient   RequestClient  var client   new RequestClient           baseUrl  http   baseurl com api v1 1           debugRequest true  debugResponse true          var resp   client post  client orders     client  1234  ref id   A987     headers    x-token   AFF01XX       It will log within the console something like this    Requesting client orders - gt  -X POST http   baseurl com api v1 1 client orders -d    client   1234   ref id    A987    -H    x-token    AFF01XX    -H Content-Type application json  Response   client orders  lt - Status 200 -   orderId   1320934    The request will return a Promise object  so you have to handle with then and catch what to do with the result   reqclient is available with npm  you can install the module with  npm install reqclient

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Here is a standard lib  http  async   await solution  const http   require  quot http quot     const fetch   async  url    gt      return new Promise  resolve  reject    gt        http        get url   resp    gt            let data    quot  quot           resp on  quot data quot    chunk    gt              data    chunk                      resp on  quot end quot        gt              resolve data                               on  quot error quot    err    gt            reject err                       Usage  await fetch  quot http   example com quot

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There is npm module to make a curl like request  npm curlrequest    Step 1   npm i -S curlrequest  Step 2  In your node file  let curl   require  curlrequest   let options         url  method  data  timeout data  etc can be passed as options  curl request options  err response   gt      err is the error returned  from the api    response contains the data returned from the api      For further reading and understanding  npm curlrequest

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See the documentation for the HTTP module for a full example   https   nodejs org api http html http http request options callback

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Use request npm module and after call   var request   require  request    request  http   www google com   function  error  response  body      console log  error    error      Print the error if one occurred   console log  statusCode    response  amp  amp  response statusCode      Print the response status code if a response was received   console log  body    body      Print the HTML for the Google homepage        For best practice also use some winston logger module or else simple console log and then run your application like   npm start output txt    Result of above command will generate one txt file on root with all data which you have printed in console log

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Request npm module Request node moulde is good to use  it have options settings for get post request plus it is widely used in production environment too

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EDIT   For new projects please refrain from using request  since now the project is in maitainance mode  and will eventually be deprecated  https   github com request request issues 3142  Instead i would recommend Axios  the library is in line with Node latest standards  and there are some available plugins to enhance it  enabling mock server responses  automatic retries and other features   https   github com axios axios  const axios   require  axios        Make a request for a user with a given ID axios get   user ID 12345      then function  response           handle success     console log response           catch function  error           handle error     console log error           then function             always executed         Or using async   await   try      const response   await axios get   user ID 12345        console log response    catch axiosErr       console log axiosErr        I usually use REQUEST  its a simplified but powerful HTTP client for Node js  https   github com request request  Its on NPM npm install request   Here is a usage sample   var request   require  request     request  http   www google com   function  error  response  body       if   error  amp  amp  response statusCode    200           console log body     Show the HTML for the Google homepage

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You might want to try using something like this   curl   require  node-curl    curl  www google com   function err      console info this status     console info  -----      console info this body     console info  -----      console info this info  SIZE DOWNLOAD

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You can try using POSTMAN Chrome app for your request and you can generate node js code from there

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Since looks like node-curl is dead  I ve forked it  renamed  and modified to be more curl like and to compile under Windows   node-libcurl  Usage example   var Curl   require   node-libcurl    Curl   var curl   new Curl     curl setOpt  Curl option URL   www google com     curl setOpt   FOLLOWLOCATION   true     curl on   end   function  statusCode  body  headers          console info  statusCode        console info   ---         console info  body length        console info   ---         console info  headers        console info   ---         console info  this getInfo  Curl info TOTAL TIME           this close         curl on   error   function  err  curlErrorCode          console error  err message        console error   ---         console error  curlErrorCode         this close          curl perform      Perform is async  and there is no way to use it synchronous currently  and probably will never have    It s still in alpha  but this is going to change soon  and help is appreciated   Now it s possible to use Easy handle directly for sync requests  example   var Easy   require   node-libcurl    Easy      Curl   require   node-libcurl    Curl      url   process argv 2      http   www google com       ret  ch   ch   new Easy     ch setOpt  Curl option URL  url     ch setOpt  Curl option HEADERFUNCTION  function  buf  size  nmemb          console log  buf         return size   nmemb       ch setOpt  Curl option WRITEFUNCTION  function  buf  size  nmemb          console log  arguments         return size   nmemb          this call is sync  ret   ch perform     ch close     console log  ret  ret    Curl code CURLE OK  Easy strError  ret        Also  the project is stable now

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I had a problem sending POST data to cloud DB from IOT RaspberryPi  but after hours I managed to get it straight   I used command prompt to do so   sudo curl --URL http    lt username gt  cloudant com  lt database name gt  --user  lt api key gt   lt pass key gt  -X POST -H  Content-Type application json  --data    id   123   type   987      Command prompt will show the problems - wrong username pass  bad request etc   --URL database server location  I used simple free Cloudant DB  --user is the authentication part username pass I entered through API pass -X defines what command to call  PUT GET POST DELETE  -H content type - Cloudant is about document database  where JSON is used --data content itself sorted as JSON

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How about for example https   github com joyent node wiki modules wiki-tcp  A very quick summary      https   github com visionmedia superagent https   github com mikeal request

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well if you really need a curl equivalent you can try node-curl    npm install node-curl   you will probably need to add libcurl4-gnutls-dev

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The http module that you use to run servers is also used to make remote requests   Here s the example in their docs   var http   require  http     var options       host   www google com     port  80    path    upload     method   POST      var req   http request options  function res      console log  STATUS      res statusCode     console log  HEADERS      JSON stringify res headers      res setEncoding  utf8      res on  data   function  chunk        console log  BODY      chunk              req on  error   function e      console log  problem with request      e message           write data to request body req write  data n    req write  data n    req end

[curl] cURL equivalent in Node.js?

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