API Missions make no sense

  1. Invoke the getInstructions() API service method.
  2. Invoke the addItem() API service method.
  3. Invoke the getItems() API service method.
  4. Invoke the purchase() API service method.

none of these work. i have use IDEAJ just like in the video. I have done everything just like in the video and can get no response that doesn anything. please help so i can get past this crap.

Hello @John_Brown

Please describe exactly what is not working for you? What response is returned when you call methods?


depends on where i call the api from. I set up the project on a website i have. i also tried running it from localhost, i also tried just using the backendless api app. each one is different…

ess to XMLHttpRequest at ‘https://api.backendless.com///services/CodelessShoppingCartService/getInstructions’ from origin ‘http://localhost:63342’ has been blocked by CORS policy: No ‘Access-Control-Allow-Origin’ header is present on the requested resource.
api.backendless.com///services/CodelessShoppingCartService/getInstructions:1 Failed to load resource: net::ERR_FAILED
backendless.min.js:15 Uncaught (in promise) Error: Network Error
at XMLHttpRequest.i.onerror (backendless.min.js:15)
DevTools failed to load source map: Could not load content for chrome-extension://gannpgaobkkhmpomoijebaigcapoeebl/bundle.min.js.map: HTTP error: status code 404, net::ERR_UNKNOWN_URL_SCHEME

thats the one from IDEAJ

“cartName”: “string”,
“item”: {}

what is the proper syntax to get it to take the input?
400 - Service invocation failed: Unexpected character (‘m’ (code 109)): was expecting double-quote to start field name at [Source: (ByteArrayInputStream); line: 3, column: 15] (14004)


APP ID and API KEY are missing here. This means that you have not initialized the SDK.

I think this topic will help you


You must ask yourself, whats missing from this mission then? one should be able to follow step-by-step and complete it yet all of this editing for a system thats supposed to be “no-code”? Does that look like no-code to u?

If you’re interested in executing this task without code, switch to the “No Code Mission Pack” and you will be able to run the whole thing without any code.

this ia the last mission before unlock…

I am talking about missions and task from here:

And I am asking why would I change if I only have this last one? No worries, I tried to get help and jsut couldn’t find any that could help. I’ll get it eventually and I’ll leave the message boards alone. thanks all

You mentioned “no code” and I am pointing out where no code tasks are.

Hello @John_Brown

Could you please get packing your project (it might be without your APP_ID and API_KEY) and send it to us to support@backendless.com (in the email please add a link to the topic) and we will check what you’ve got.

Regards, Vlad