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JavaScript Node.js Basics 2017 Building a Command Line Application Getting the Response Body

Daven Hietala
Daven Hietala
8,040 Points
Posted by Daven Hietala
Daven Hietala
8,040 Points

SyntaxError: Unexpected end of input

I have rewatched this video several times and retyped everything just as it says to in the video..

I do not understand what I am doing wrong.

Here is my code..

// Problem: We need a simple way to look at a user's badge count and JavaScript points
// Solution: Use Node.js to connect to Treehouse's API to get profile information to print out

// Require https module
const https = require('https');
const username = "chalkers";

// Function to print message to console
function printMessage(username, badgeCount, points) {
  const message = `${username} has ${badgeCount} total badge(s) and ${points} points in JavaScript`;
  console.log(message);
}

// Connect to the API URL (https://teamtreehouse.com/username.json)
const request = https.get(`https://teamtreehouse.com/${username}.json`, response => {
                      let body = "";
                      // Read the data
                      response.on('data', data => {
                        body += data.toString();
                      });

                      response.on('end', () => {
                      // Parse the data
                      console.log(body);
                      console.log(typeof body);
                      // Print the data
                      });

After running "node app.js" in the console I receive an error that reads as follows..

treehouse:~/workspace$ node app.js                                                                                                    
/home/treehouse/workspace/app.js:28                                                                                                   
});                                                                                                                                   
  ^                                                                                                                                   

SyntaxError: Unexpected end of input                                                                                                  
    at createScript (vm.js:80:10)                                                                                                     
    at Object.runInThisContext (vm.js:139:10)                                                                                         
    at Module._compile (module.js:617:28)                                                                                             
    at Object.Module._extensions..js (module.js:664:10)                                                                               
    at Module.load (module.js:566:32)                                                                                                 
    at tryModuleLoad (module.js:506:12)                                                                                               
    at Function.Module._load (module.js:498:3)                                                                                        
    at Function.Module.runMain (module.js:694:10)                                                                                     
    at startup (bootstrap_node.js:204:16)                                                                                             
    at bootstrap_node.js:625:3

I do not know where that semicolon is. Again I have typed everything exactly as instructed as far as I can see.

Can anyone see what I am doing wrong? Thank you in advance!

Daven

Daven Hietala
Daven Hietala
8,040 Points
Daven Hietala
Daven Hietala
8,040 Points

For anyone else that had this issue, I figured out what I did wrong.

I deleted the final closing curly bracket, parenthesis and semicolon.

When I added the final curly bracket, parenthesis and semicolon, "});", the code executed without any issues.

Programmatically speaking..

// Problem: We need a simple way to look at a user's badge count and JavaScript points
// Solution: Use Node.js to connect to Treehouse's API to get profile information to print out

// Require https module
const https = require('https');
const username = "chalkers";

// Function to print message to console
function printMessage(username, badgeCount, points) {
  const message = `${username} has ${badgeCount} total badge(s) and ${points} points in JavaScript`;
  console.log(message);
}

// Connect to the API URL (https://teamtreehouse.com/username.json)
const request = https.get(`https://teamtreehouse.com/${username}.json`, response => {
                      let body = "";
                      // Read the data
                      response.on('data', data => {
                        body += data.toString();
                      });

                      response.on('end', () => {
                      // Parse the data
                      console.log(body);
                      console.log(typeof body);
                      // Print the data
                      });

When I should have added an additional closing curly bracket, parenthesis and semicolon like this...

// Problem: We need a simple way to look at a user's badge count and JavaScript points
// Solution: Use Node.js to connect to Treehouse's API to get profile information to print out

// Require https module
const https = require('https');
const username = "chalkers";

// Function to print message to console
function printMessage(username, badgeCount, points) {
  const message = `${username} has ${badgeCount} total badge(s) and ${points} points in JavaScript`;
  console.log(message);
}

// Connect to the API URL (https://teamtreehouse.com/username.json)
const request = https.get(`https://teamtreehouse.com/${username}.json`, response => {
                      let body = "";
                      // Read the data
                      response.on('data', data => {
                        body += data.toString();
                      });

                      response.on('end', () => {
                      // Parse the data
                      console.log(body);
                      console.log(typeof body);
                      // Print the data
                      });


                      });

Hope this helps someone down the road!

2 Answers

Steven Parker
Steven Parker
231,275 Points
Steven Parker
Steven Parker
231,275 Points

Congratulations on resolving your issue. For future reference, the most common cause of "Unexpected end of input" is unbalanced parentheses or braces (or both, as in this case).

If you follow "best practice" intenting, issues like this will be easier to spot since the matching end of a section will be indented the same as the opening.

Giving the function above that indenting style would make it look like this:

// Connect to the API URL (https://teamtreehouse.com/username.json)
const request = https.get(
    `https://teamtreehouse.com/${username}.json`,
    response => {
        let body = "";
        // Read the data
        response.on("data", data => {
            body += data.toString();
        });

        response.on("end", () => {
            // Parse the data
            console.log(body);
            console.log(typeof body);
            // Print the data
        });
    }
);

Once you get used to this style, the fact that the last line was indented would be a sure sign that the function was uncomplete.

Daven Hietala
Daven Hietala
8,040 Points
Daven Hietala
Daven Hietala
8,040 Points

Thank you Steven, I will keep that in mind.

By the way, how do you make your code retain the colored text? I am using three back ticks before and after my code "```", yet my code is black and white.

Steven Parker
Steven Parker
231,275 Points
Steven Parker
Steven Parker
231,275 Points

For syntax coloring, put the language name or abbreviation on the line with the first three accents.

Happy coding!