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JavaScript Build a Simple Dynamic Site with Node.js HTTP Methods and Headers Dealing with the POST Body

Posted by Christian Higgins
Christian Higgins
15,758 Points

502 Bad Gateway, starting with the changes with request around the 7:00 mark

Here's my router.js file

var Profile = require("./profile.js");
var renderer = require("./renderer.js");

var commonHeaders = {"Content-Type": "text/html"};

// Handle HTTP route GET / and POST / i.e. Home
function home(request, response){
  // if url == "/" && GET
  if(request.url === "/"){
    if(request.method.toLowerCase() === ""){
      //show search
      response.writeHead(200, commonHeaders);
      renderer.view("header", {}, response);
      renderer.view("search", {}, response);
      renderer.view("footer", {}, response);
      response.end();
    } else{
      // if url == "/" && POST

      // get the post data from body
      request.on("data", function(postBody) {
        var body = "" + postBody;
        console.log(postBody.toString());
      });
      // extract the username
      // redirect to /:username
    }
  }  

}

// Handle HTTP route GET /:username i.e. /chalkers or /robheath
function user(request, response) {
  // if url == "/...."
  var username = request.url.replace("/", "");
  if(username.length > 0){
    response.writeHead(200, commonHeaders);
    renderer.view("header", {}, response);

    // get json from Treehouse
    var studentProfile = new Profile(username);

     // on "end"
    studentProfile.on("end", function(profileJSON){
      // show profile

      // Store the values which we need
      var values = {
        avatarUrl: profileJSON.gravatar_url,
        username: profileJSON.profile_name,
        badges: profileJSON.badges.length,
        javascriptPoints: profileJSON.points.JavaScript
      }
      // Simple response
      renderer.view("profile", values, response);
      renderer.view("footer", {}, response);
      response.end();
    });

    // on "error"
    studentProfile.on("error", function(error){
      // show error
      renderer.view("error", {errorMessage: error.message}, response);
      renderer.view("search", {}, response);
      renderer.view("footer", {}, response);
      response.end();
    });

  }  
}

module.exports.home = home;
module.exports.user = user;

3 Answers

Christian Higgins
Christian Higgins
15,758 Points
Christian Higgins
Christian Higgins
15,758 Points

Rewatched the video with a fine-toothed comb and found I had missed. On line 10, I had left off "get"

EDIT: Nope! Still get the 502 error after the additions at the 7:00 mark.

Saud Tauqeer
PLUS
Saud Tauqeer
Courses Plus Student 8,099 Points
Saud Tauqeer
Saud Tauqeer
Courses Plus Student 8,099 Points

i was having the same issue i re-wrote my code and noticed my closing "{}" braces were over-lapping with the function and if statement.

 //Handle HTTP route GET / and POST / i.e. Home
function home(request, response) {
  //if url == "/" && GET
  if(request.url === "/") {
    if (request.method =="GET"){
      //show search
      response.writeHead(200, commonHeaders);  
      renderer.view("header", {}, response);
      renderer.view("search", {}, response);
      renderer.view("footer", {}, response);
      response.end();

    }else {
        request.on("data",(postBody)=>{
        console.log(postBody.toString());
      });

    }
  }}

i know it's a old post but sometimes stuff just keeps bugging you lol. hope this helps you and puts you at ease.

Pradeep Pai
Pradeep Pai
6,647 Points
Pradeep Pai
Pradeep Pai
6,647 Points

I received 502 bad request as well. Changed "function(postBody)" to "(postBody) =>". Also, request.method == "GET" and it worked.