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

Carlos Lantigua
Carlos Lantigua
5,938 Points

querystring.parse() throws up console error, not sure why : (

when attempting to post the username data from the form field I get a weird error message

//Handle HTTP route GET / and POST / i.e. Home
function home(request, response){
  //if url == "/" && GET
  if(request.url === "/") {
    if(request.method.toLowerCase() === "get") {
    //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) {
          //extract the username 
        let query = queryString.parse(postBody.toString());
          response.write(query.username);
          response.end();
          //redirect to /:username
      });
    }
  }
}

I get the following

Server running at http://<workspace-url>/                                                                                        
/home/treehouse/workspace/router.js:22 
        let query = queryString.parse(postBody.toString());                                                                      
                                ^                                                                                                

ReferenceError: queryString is not defined                                                                                       
    at IncomingMessage.<anonymous> (/home/treehouse/workspace/router.js:22:33)                                                   
    at emitOne (events.js:96:13)                                                                                                 
    at IncomingMessage.emit (events.js:188:7)                                                                                    
    at IncomingMessage.Readable.read (_stream_readable.js:381:10)                                                                
    at flow (_stream_readable.js:761:34)                                                                                         
    at resume_ (_stream_readable.js:743:3)                                                                                       
    at _combinedTickCallback (internal/process/next_tick.js:80:11)                                                               
    at process._tickCallback (internal/process/next_tick.js:104:9)

1 Answer

Carlos Lantigua
Carlos Lantigua
5,938 Points

figured it out, per the documentation is requires querystring to be defined as a variable, just dropped this at the top..

const querystring = require('querystring');