newbie help

[michael.dev]

I am relatively new to programming and especially using APIs.

I am trying to add Betfair odds to my website, but when trying to access the API via ajax I get this response

XMLHttpRequest cannot load https://api.betfair.com/exchange/betting/json-rpc/v1. Response to preflight request doesn't pass access control check: No 'Access-Control-Allow-Origin' header is present on the requested resource. Origin 'http://podosfairaki.dev' is therefore not allowed access. The response had HTTP status code 400.

btw the origin is a local dev address

am I doing something wrong? do I have to wait for Betfair to approve my request to use Betfair API commercially? and if so, will i be able to get access to the app from my local origin?

[JayBee]

Do you have permission/license/whatever from Betfair to use their data on a public website?

Copyright issues.

I am relatively new to programming and especially using APIs.

I am trying to add Betfair odds to my website, but when trying to access the API via ajax I get this response

XMLHttpRequest cannot load https://api.betfair.com/exchange/betting/json-rpc/v1. Response to preflight request doesn't pass access control check: No 'Access-Control-Allow-Origin' header is present on the requested resource. Origin 'http://podosfairaki.dev' is therefore not allowed access. The response had HTTP status code 400.

btw the origin is a local dev address

am I doing something wrong? do I have to wait for Betfair to approve my request to use Betfair API commercially? and if so, will i be able to get access to the app from my local origin?

[johnny1333]

same issue

I have the same issue and its because CORS dont allow to fetch data from other origin and the api dont pass back the Access-Control-Allow-Origin header to the ajax request. Also asking befair devs if we somehow can call the api from the browser ajax?

[lorde]

I am relatively new to programming and especially using APIs.

I am trying to add Betfair odds to my website, but when trying to access the API via ajax I get this response

XMLHttpRequest cannot load https://api.betfair.com/exchange/betting/json-rpc/v1. Response to preflight request doesn't pass access control check: No 'Access-Control-Allow-Origin' header is present on the requested resource. Origin 'http://podosfairaki.dev' is therefore not allowed access. The response had HTTP status code 400. nyt wordle

btw the origin is a local dev address

am I doing something wrong? do I have to wait for Betfair to approve my request to use Betfair API commercially? and if so, will i be able to get access to the app from my local origin?

it's a copyright issue you don't have permission to view it

[pwebtech]

this is really just a browser security thing, if you really want to allow the cross origin request in your browser (not recommended), then something like this should work: https://stackoverflow.com/questions/...licy-in-chrome

It's not really something betfair can address as adding a wildcard 'Access-Control-Allow-Origin' to the headers of the API end-point would make it possible for malicious scripts in web pages to potentially gain access to a user's betfair account via the cookies sent with xmlhttprequests/fetch calls

simple solution is: get a server, backend, to call the betfair api and then call the server page from the client, i.e. don't call the betfair api directly from a browser

[jabe]

I'm not sure of the value of replying to threads that are six years old. It's happened lately with what I can only describe as hit-and-run trolls. One "replied" recently to four threads that hadn't been touched for more than 6 years and the answers were not answers at all. That user posted all four on the same day and hasn't been back.

[pwebtech]

Agree, this one got past me, as it seemed almost a genuine (but wrong) reply/update, sorry!

[jabe]

Agree, this one got past me, as it seemed almost a genuine (but wrong) reply/update, sorry!

Nothing to worry about and no need at all to apologise. It's more about me and you wasting our time being helpful.

[kathy]

I am relatively new to programming and especially using APIs.

I am trying to add Betfair odds to my website, but when trying to access the API via ajax I get this response

XMLHttpRequest cannot load https://api.betfair.com/exchange/betting/json-rpc/v1 melon playground. Response to preflight request doesn't pass access control check: No 'Access-Control-Allow-Origin' header is present on the requested resource. Origin 'http://podosfairaki.dev' is therefore not allowed access. The response had HTTP status code 400.

btw the origin is a local dev address

am I doing something wrong? do I have to wait for Betfair to approve my request to use Betfair API commercially? and if so, will i be able to get access to the app from my local origin?

In your case, it seems that the API endpoint you are trying to access does not allow cross-origin requests from your local domain, which is why you are receiving the error message.
You can try Enable CORS (Cross Origin Resource Sharing) on Betfair API server or Use a server side proxy

[adnantobitech]

so without setting a backend we cannot bypass CORS issue ? im trying to setup personal betting api in my react.js and im getting CORS issue. i have tried using proxy and CORS extentions but nothing seem to work for me.