How is an HTTP POST request made in node js

Question

How can I make an outbound HTTP POST request  with data  in node js

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Simple and dependency-free  Uses a Promise so that you can await the result  It returns the response body and does not check the response status code  const https   require  https     function httpsPost  body     options         return new Promise  resolve reject    gt            const req   https request               method   POST                  options             res   gt                const chunks                   res on  data   data   gt  chunks push data               res on  end        gt                    let body   Buffer concat chunks                   switch res headers  content-type                          case  application json                           body   JSON parse body                           break                                    resolve body                                    req on  error  reject           if body                req write body                     req end              Usage  async function main         const res   await httpsPost           hostname   sentry io           path    api 0 organizations org releases   changesetId  deploys            headers                 Authorization    Bearer   process env SENTRY AUTH TOKEN                 Content-Type    application json                      body  JSON stringify               environment  isLive    production     demo                        main   catch err   gt        console log err

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You can also use Requestify  a really cool and simple HTTP client I wrote for nodeJS   it supports caching   Just do the following       var requestify   require  requestify         requestify post  http   example com             hello   world              then function response               Get the response body  JSON parsed or jQuery object for XMLs          response getBody

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This is the simplest way I use to make request  using  request  module    Command to install  request  module       npm install request   Example code   var request   require  request    var options       method   post     body  postData     Javascript object   json  true     Use If you are sending JSON data   url  url    headers           Specify headers  If any        request options  function  err  res  body      if  err        console log  Error     err      return       console log   Body     body         You can also use Node js s built-in  http  module to make request

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This my solution for POST and GET   About the Post method   If the body is a JSON object  so it s important to deserialize it with JSON stringify and possibly set the Content-Lenght header accordingly         var bodyString JSON stringify body        var  headers              Content-Length   Buffer byteLength bodyString             before writing it to the request   request write  bodyString      About both Get and Post methods   The timeout can occur as a socket disconnect  so you must register its handler like   request on  socket   function  socket            socket setTimeout  self timeout            socket on  timeout   function                 request abort                if timeout  return timeout  new Error  request timed out                            while the request handler is         request on  timeout   function                   Timeout happend  Server received request  but not handled it               i e  doesn t send any response or it took to long                You don t know what happend               It will emit  error  message as well  with ECONNRESET code             req abort              if timeout  return timeout  new Error  request timed out                    I strongly suggest to register both the handlers   The response body is chunked  so you must concat chunks at the data handler         var body             response on  data   function d              body    d              At the end the body will contain the whole response body         response on  end   function             try               var jsonResponse JSON parse body               if success  return success  jsonResponse              catch ex       bad json           if error  return error ex toString                           It is safe to wrap with a try   catchtheJSON parse  since you cannot be sure that it is a well-formatted json actually and there is no way to be sure of it at the time you do the request   Module  SimpleAPI         Simple POST and GET     author Loreto Parisi  loretoparisi at gmail dot com      function        var SimpleAPI     SimpleAPI    function          var qs   require  querystring                    API Object model         author Loreto Parisi  loretoparisi at gmail dot com              function SimpleAPI host port timeout ssl debug json           this host host        this port port        this timeout timeout            true to use ssl - defaults to true          this ssl ssl    true            true to console log          this debug debug            true to parse response as json - defaults to true          this json   typeof json    undefined   json true        this requestUrl           if ssl       use ssl           this http   require  https            else      go unsafe  debug only please           this http   require  http                                  HTTP GET         author Loreto Parisi  loretoparisi at gmail dot com              SimpleAPI prototype Get   function path  headers  params  success  error  timeout           var self this        if params            var queryString qs stringify params           if  queryString               path      queryString                          var options             headers   headers          hostname  this host          path  path          method   GET                 if this port  amp  amp  this port   80        port only if   80         options  port   this port                if self debug            console log   SimpleAPI Get   headers  params  options                  var request this http get options  function response               if self debug       debug             console log  JSON stringify response headers                               Continuously update stream with data           var body                 response on  data   function d                  body    d                          response on  end   function                 try                 if self json                    var jsonResponse JSON parse body                   if success  return success  jsonResponse                                  else                   if success  return success  body                                  catch ex       bad json               if error  return error  ex toString                                                      request on  socket   function  socket                socket setTimeout  self timeout                socket on  timeout   function                     request abort                    if timeout  return timeout  new Error  request timed out                                          request on  error   function  e                 General error  i e                - ECONNRESET - server closed the socket unexpectedly               - ECONNREFUSED - server did not listen               - HPE INVALID VERSION               - HPE INVALID STATUS               -      other HPE   codes  - server returned garbage           console log e             if error  return error e                       request on  timeout   function                   Timeout happend  Server received request  but not handled it               i e  doesn t send any response or it took to long                You don t know what happend               It will emit  error  message as well  with ECONNRESET code             req abort              if timeout  return timeout  new Error  request timed out                           self requestUrl    this ssl  https   http             request  headers  host     request path          if self debug              console log  SimpleAPI Post  self requestUrl                     request end            RequestGet                 HTTP POST         author Loreto Parisi  loretoparisi at gmail dot com              SimpleAPI prototype Post   function path  headers  params  body  success  error  timeout          var self this         if params            var queryString qs stringify params           if  queryString               path      queryString                          var bodyString JSON stringify body        var  headers              Content-Length   Buffer byteLength bodyString                 for  var attrname in headers     headers attrname    headers attrname            var options             headers    headers          hostname  this host          path  path          method   POST           qs   qs stringify params                 if this port  amp  amp  this port   80        port only if   80         options  port   this port                if self debug            console log   SimpleAPI Post n s n s   JSON stringify  headers null 2   JSON stringify options null 2                   if self debug            console log  SimpleAPI Post body n s   JSON stringify body null 2                   var request this http request options  function response               if self debug       debug             console log  JSON stringify response headers                               Continuously update stream with data           var body                 response on  data   function d                  body    d                          response on  end   function                 try                   console log  END   body                   var jsonResponse JSON parse body                   if success  return success  jsonResponse                  catch ex       bad json               if error  return error ex toString                                                       request on  socket   function  socket                socket setTimeout  self timeout                socket on  timeout   function                     request abort                    if timeout  return timeout  new Error  request timed out                                          request on  error   function  e                 General error  i e                - ECONNRESET - server closed the socket unexpectedly               - ECONNREFUSED - server did not listen               - HPE INVALID VERSION               - HPE INVALID STATUS               -      other HPE   codes  - server returned garbage           console log e             if error  return error e                       request on  timeout   function                   Timeout happend  Server received request  but not handled it               i e  doesn t send any response or it took to long                You don t know what happend               It will emit  error  message as well  with ECONNRESET code             req abort              if timeout  return timeout  new Error  request timed out                           self requestUrl    this ssl  https   http             request  headers  host     request path          if self debug              console log  SimpleAPI Post  self requestUrl                      request write  bodyString            request end             RequestPost      return SimpleAPI              module exports   SimpleAPI     call this     Usage      Parameters    domain  example com    ssl true  port 80    timeout  30 secs    debug  true    json response true var api   new SimpleAPI  posttestserver com   80  1000   10  true  true  true     var headers          Content-Type     application json        Accept     application json      var params        dir     post-test     var method    post php    api Post method  headers  params  body       function response       success        console log  response                function error       error       console log  error toString                  function error       timeout        console log  new Error  timeout error

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let request   require  request    let jsonObj       request       url   https   myapii com sendJsonData       method   POST       json  true      body  jsonObj        function  error  resp  body          console log resp         Or you could use this library   let axios   require  axios    let jsonObj        const myJsonAPI   axios create      baseURL   https   myapii com      timeout  120 1000      let response   await myJsonAPI post  sendJsonData  jsonobj  catch e  gt       res json e       console log response

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To Post Rest JSON Request We can simply use request package and save the values we have to send in Json variable   First install the require package in your console by         npm install request --save    var request   require  request         var options                    key   28                    key1   value                    key2   value                         request                url  http   dev api ean com ean-services rs hotel v3 ping                                         minorRev   options key                     amp cid   options key1                     amp apiKey   options key2               method  POST                json true  function error response body                        console log body

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There are dozens of open-source libraries available that you can use to making an HTTP POST request in Node   1  Axios  Recommended   const axios   require  axios     const data         name   John Doe       job   Content Writer      axios post  https   reqres in api users   data       then  res    gt            console log  Status    res status             console log  Body     res data          catch  err    gt            console error err             2  Needle  const needle   require  needle     const data         name   John Doe       job   Content Writer      needle  post    https   reqres in api users   data   json  true        then  res    gt            console log  Status    res statusCode             console log  Body     res body          catch  err    gt            console error err             3  Request  const request   require  request     const options         url   https   reqres in api users       json  true      body            name   John Doe           job   Content Writer            request post options   err  res  body    gt        if  err            return console log err             console log  Status    res statusCode         console log body         4  Native HTTPS Module  const https   require  https     const data   JSON stringify       name   John Doe       job   Content Writer       const options         hostname   reqres in       path    api users       method   POST       headers             Content-Type    application json            Content-Length   data length            const req   https request options   res    gt        let data            console log  Status Code    res statusCode        res on  data    chunk    gt            data    chunk               res on  end        gt            console log  Body     JSON parse data                on  error    err    gt        console log  Error     err message        req write data   req end      For details  check out this article

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You can use request library  https   www npmjs com package request  var request   require  request      To post JSON data   var myJSONObject            request       url   http   josiahchoi com myjson       method   POST       json  true        lt --Very important        body  myJSONObject    function  error  response  body       console log response         To post xml data   var myXMLText     lt xml gt             lt  xml gt   request       url   http   josiahchoi com myjson       method   POST       headers             content-type    application xml        lt --Very important               body  myXMLText    function  error  response  body       console log response

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Axios is a promise based HTTP client for the browser and Node js  Axios makes it easy to send asynchronous HTTP requests to REST endpoints and perform CRUD operations  It can be used in plain JavaScript or with a library such as Vue or React      const axios   require  axios             var dataToPost               email   your email             password   your password                      let axiosConfiguration               headers                   Content-Type    application json charset UTF-8                  Access-Control-Allow-Origin                                        axios post  endpoint or url   dataToPost  axiosConfiguration           then  res    gt              console log  Response     res                       catch  err    gt              console log  error     err

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I use Restler and Needle for production purposes  They are both much more powerful than native httprequest  It is possible to request with basic authentication  special header entry or even upload download files   As for post get operation  they also are much simpler to use than raw ajax calls using httprequest   needle post  https   my app com endpoint    foo  bar         function err  resp  body           console log body

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I found a video which explains on how to achieve this  https   www youtube com watch v nuw48-u3Yrg  It uses default  http  module together with  querystring  and  stringbuilder  modules  The application takes two numbers  using two textboxes  from a web page and upon submit  returns sum of those two  along with persisting the values in the textboxes   This is the best example I could find anywhere else   var http   require  http    var qs   require  querystring    var StringBuilder   require  stringbuilder     var port   9000   function getCalcHtml req  resp  data        var sb   new StringBuilder   newline    r n          sb appendLine   lt html gt         sb appendLine    lt body gt         sb appendLine        lt form method  post  gt         sb appendLine            lt table gt         sb appendLine                lt tr gt         sb appendLine                    lt td gt Enter First No   lt  td gt          if  data  amp  amp  data txtFirstNo            sb appendLine                    lt td gt  lt input type  text  id  txtFirstNo  name  txtFirstNo  value   0    gt  lt  td gt    data txtFirstNo             else           sb appendLine                    lt td gt  lt input type  text  id  txtFirstNo  name  txtFirstNo    gt  lt  td gt                sb appendLine                lt  tr gt         sb appendLine                lt tr gt         sb appendLine                    lt td gt Enter Second No   lt  td gt          if  data  amp  amp  data txtSecondNo            sb appendLine                    lt td gt  lt input type  text  id  txtSecondNo  name  txtSecondNo  value   0    gt  lt  td gt    data txtSecondNo             else           sb appendLine                    lt td gt  lt input type  text  id  txtSecondNo  name  txtSecondNo    gt  lt  td gt                sb appendLine                lt  tr gt         sb appendLine                lt tr gt         sb appendLine                    lt td gt  lt input type  submit  value  Calculate    gt  lt  td gt         sb appendLine                lt  tr gt          if  data  amp  amp  data txtFirstNo  amp  amp  data txtSecondNo            var sum   parseInt data txtFirstNo    parseInt data txtSecondNo           sb appendLine                lt tr gt             sb appendLine                    lt td gt Sum   0  lt  td gt    sum           sb appendLine                lt  tr gt                sb appendLine            lt  table gt         sb appendLine        lt  form gt        sb appendLine    lt  body gt         sb appendLine   lt  html gt         sb build function  err  result            resp write result           resp end               function getCalcForm req  resp  data        resp writeHead 200     Content-Type    text html          getCalcHtml req  resp  data      function getHome req  resp        resp writeHead 200     Content-Type    text html          resp write   lt html gt  lt html gt  lt head gt  lt title gt Home lt  title gt  lt  head gt  lt body gt Want to some calculation  Click  lt a href   calc  gt here lt  a gt  lt  body gt  lt  html gt         resp end       function get404 req  resp        resp writeHead 404   Resource Not Found      Content-Type    text html          resp write   lt html gt  lt html gt  lt head gt  lt title gt 404 lt  title gt  lt  head gt  lt body gt 404  Resource not found  Go to  lt a href     gt Home lt  a gt  lt  body gt  lt  html gt         resp end       function get405 req  resp        resp writeHead 405   Method not supported      Content-Type    text html          resp write   lt html gt  lt html gt  lt head gt  lt title gt 405 lt  title gt  lt  head gt  lt body gt 405  Method not supported lt  body gt  lt  html gt         resp end       http createServer function  req  resp        switch  req method            case  GET               if  req url                            getHome req  resp                             else if  req url       calc                     getCalcForm req  resp                             else                   get404 req  resp                             break          case  POST               if  req url       calc                     var reqBody                       req on  data   function  data                        reqBody    data                      if  reqBody length  gt  1e7      10MB                         resp writeHead 413   Request Entity Too Large      Content-Type    text html                              resp end   lt  doctype html gt  lt html gt  lt head gt  lt title gt 413 lt  title gt  lt  head gt  lt body gt 413  Request Entity Too Large lt  body gt  lt  html gt                                                               req on  end   function                          var formData   qs parse reqBody                       getCalcForm req  resp  formData                                                 else                   get404 req  resp                             break          default              get405 req  resp               break           listen port

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Request-Promise Provides promise based response   http response codes other than 2xx will cause the promise to be rejected  This can be overwritten by setting options simple   false  var options       method   POST     uri   http   api posttestserver com post     body      some   payload        json  true    Automatically stringifies the body to JSON     rp options   then function  parsedBody           POST succeeded        catch function  err           POST failed

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var https   require  https             HOW TO Make an HTTP Call - POST        do a POST request    create the JSON object jsonObject   JSON stringify        message     The web of things is approaching  let do some tests to be ready         name     Test message posted with node js        caption     Some tests with node js        link     http   www youscada com        description     this is a description        picture     http   youscada com wp-content uploads 2012 05 logo2 png        actions                 name     youSCADA            link     http   www youscada com                  prepare the header var postheaders          Content-Type     application json        Content-Length    Buffer byteLength jsonObject   utf8          the post options var optionspost         host    graph facebook com       port   443      path     youscada feed access token your api key       method    POST       headers   postheaders     console info  Options prepared     console info optionspost   console info  Do the POST call        do the POST call var reqPost   https request optionspost  function res        console log  statusCode     res statusCode          uncomment it for header details     console log  headers     res headers        res on  data   function d            console info  POST result  n            process stdout write d           console info   n nPOST completed                    write the json data reqPost write jsonObject   reqPost end    reqPost on  error   function e        console error e

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After struggling a lot while creating a low level utility to handle the post and get requests for my project  I decided to post my effort here  Much on the lines of accepted answer  here is a snippet for making http and https POST requests for sending JSON data   const http   require  http   const https   require  https       Request handler function let postJSON    options  postData  callback    gt            Serializing JSON     post data   JSON stringify postData       let port   options port    443   https   http         Callback function for the request     let req   port request options   res    gt            let output              res setEncoding  utf8               Listener to receive data         res on  data    chunk    gt                output    chunk                         Listener for intializing callback after receiving complete response         res on  end        gt                let obj   JSON parse output              callback res statusCode  obj                             Handle any errors occurred while making request     req on  error    err    gt              res send  error      err message                  Request is made here  with data as string or buffer     req write post data         Ending the request     req end       let callPost        gt         let data              name    Jon            message    hello  world             let options             host   domain name            Your domain name         port  443                     443 for https and 80 for http         path    path to resource      Path for the request         method   POST                       headers                 Content-Type    application json                Content-Length   Buffer byteLength data                       postJSON options  data   statusCode  result    gt               Handle response            Process the received data

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Here s an example of using node js to make a POST request to the Google Compiler API      We need this to build our post string var querystring   require  querystring    var http   require  http    var fs   require  fs     function PostCode codestring         Build the post string from an object   var post data   querystring stringify          compilation level     ADVANCED OPTIMIZATIONS          output format    json          output info    compiled code            warning level     QUIET            js code    codestring             An object of options to indicate where to post to   var post options           host   closure-compiler appspot com         port   80         path    compile         method   POST         headers               Content-Type    application x-www-form-urlencoded              Content-Length   Buffer byteLength post data                     Set up the request   var post req   http request post options  function res          res setEncoding  utf8          res on  data   function  chunk              console log  Response      chunk                         post the data   post req write post data     post req end           This is an async file read fs readFile  LinkedList js    utf-8   function  err  data      if  err           If this were just a small part of the application  you would        want to handle this differently  maybe throwing an exception        for the caller to handle  Since the file is absolutely essential        to the program s functionality  we re going to exit with a fatal        error instead      console log  FATAL An error occurred trying to read in the file      err       process exit -2            Make sure there s data before we post it   if data        PostCode data         else       console log  No data to post        process exit -1             I ve updated the code to show how to post data from a file  instead of the hardcoded string  It uses the async fs readFile command to achieve this  posting the actual code after a successful read  If there s an error  it is thrown  and if there s no data the process exits with a negative value to indicate failure

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Posting another axios example of an axios post request that uses additional configuration options and custom headers    x000D   x000D  var postData     x000D    email   test test com   x000D    password   password  x000D     x000D   x000D  let axiosConfig     x000D    headers    x000D         Content-Type    application json charset UTF-8   x000D         Access-Control-Allow-Origin        x000D      x000D     x000D   x000D  axios post  http    lt host gt   lt port gt   lt path gt    postData  axiosConfig  x000D   then  res    gt    x000D    console log  RESPONSE RECEIVED     res   x000D     x000D   catch  err    gt    x000D    console log  AXIOS ERROR     err   x000D     x000D   x000D   x000D

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Update 2020   I ve been really enjoying phin - The ultra-lightweight Node js HTTP client  It can be used in two different ways  One with Promises  Async Await  and the other with traditional callback styles   Install via  npm i phin  Straight from it s README with await   const p   require  phin    await p       url   https   ethanent me       method   POST       data            hey   hi              Unpromisifed  callback  style   const p   require  phin   unpromisified  p  https   ethanent me    err  res    gt        if   err  console log res body         As of 2015 there are now a wide variety of different libraries that can accomplish this with minimal coding  I much prefer elegant light weight libraries for HTTP requests unless you absolutely need control of the low level HTTP stuff   One such library is Unirest  To install it  use npm     npm install unirest  And onto the Hello  World  example that everyone is accustomed to   var unirest   require  unirest     unirest post  http   example com helloworld    header  Accept    application json    send    Hello    World       end function  response      console log response body         Extra  A lot of people are also suggesting the use of request   2    It should be worth noting that behind the scenes Unirest uses the request library    Unirest provides methods for accessing the request object directly   Example   var Request   unirest get  http   mockbin com request

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request is now deprecated  It is recommended you use an alternative In no particular order and dreadfully incomplete   native HTTP S  const https   require  https    node-fetch axios got superagent bent make-fetch-happen unfetch tiny-json-http needle urllib  Stats comparision Some code examples Original answer  This gets a lot easier if you use the request library  var request   require  request     request post       http   www yoursite com formpage         json    key   value           function  error  response  body            if   error  amp  amp  response statusCode    200                console log body                       Aside from providing a nice syntax it makes json requests easy  handles oauth signing  for twitter  etc    can do multi-part forms  e g  for uploading files  and streaming  To install request use command npm install request

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If you are looking for promise based HTTP requests  axios does its job nicely     const axios   require  axios       axios post   user    firstName   Fred  lastName   Flintstone           then  response    gt  console log response          catch  error    gt  console log error      OR  await axios post   user    firstName   Fred  lastName   Flintstone

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By using request dependency   Simple solution       import request from  request   var data              host   127 1 1 1            port  9008        request post  baseUrl     peers connect                         json  data      your payload data placed here             headers                     X-Api-Key    dajzmj6gfuzmbfnhamsbuxivc      if authentication needed                  Content-Type    application json                            function  error  response  body                if  error                    callback error  null                else                   callback error  response body

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I like the simplicity of superagent  https   github com visionmedia superagent    Same API on both node and browser     async function       var response   await superagent post  http   127 0 0 1 8125     age  2     console log response        There is also node-fetch  https   www npmjs com package node-fetch   which has an API that matches fetch from the browsers - however this requires manual query string encoding  does not automatically handle content types  or so any of the other work superagent does

[node.js] How is an HTTP POST request made in node.js?

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