Developer Questions

I tried to create my own token to test with the NFT web app that we are building. But every time I go to token creator app, it throws ``` You opened the xApp with an account you don't have full access to. (Read only) Please close this xApp, navigate to the home screen and switch to the account you want to issue your token from. (Needs to have 'Full Access') Then open the xApp again. ``` But the account was seeded from "https://hooks-testnet-v2.xrpl-labs.com/" with Full Access. So I am having a hard time to add and test the custom tokens. [Xumm Image](https://postimg.cc/dLsNqns4)

I'm trying to use xumm as an OpenID connect provider using AWS cognito. I’m hoping someone can provide some guidance on my integration I think my integration is 90% of the way there but am getting this error when attempting to grant the authorizationCode: invalid_token_signature: Could not match the desired key identifier within the list of keys at OAuth. The flow to get there: User clicks Sign in → this triggers Auth.federatedSignIn({customProvider:’xumm’”) → the page gets redirected to xumm.app/sign/abc1234 → Signs the transaction using Xumm → redirects back domain.region.amazoncognito.com/oauth2/idpresonse?authorization_code=anAuthorizationCode…. Etc → Amazon cognito then tries to grant a token with the authorization code and fails to do so with the above error. Using Cognito, I set up a userpool, created a identity provider using OpenID Connect. In the Identity provider config, I provided the ClientID and Secret, Attributes request method set to GET, openid as the authorize scope and provided https://oauth2.xumm.app as the issuer. After I set up the identity provider, I configured an appClient with the identity provider in the previous step with the call back URL set to http://localhost:3000. I also enabled Authorization code grant and implicit grant as the allowed ‘Oauth Flows’ and set openid as the “Allowed OAuth Scopes” In the federated identities dashboard, I have configured an identity pool. Under the OpenId section I have enabled an authentication provider with oauth2.xumm.app as the domain and the Arn pointing to an IAM which is connected to an audience set as my XUMM api key with a valid thumbprint. In the application (react app), I configure aws-amplify with the following information: { "aws_project_region": "my-aws-region", "aws_cognito_identity_pool_id": "my-aws-region:identity-pool-id-from-federatedIdentities", “Aws_cognito_region”:”my-aws-region”, "aws_user_pools_id": "my-aws-region_USERPOOLID", "aws_user_pools_web_client_id": "AppClientIdConnectedWithIdentityProvider", “oauth”:{ “domain”: "subDomain.my_region.amazoncognito.com", “scope”:[“openid”], “redirectSignIn”:”http://localhost:3000”, “redirectSignOut”:”http://localhost:3000” “responseType”:”code” } } Any guidance would be greatly appreciated!

Is it possible to customize popup styles displaying on XUMM (Navigating to browser using xapp.openBrowser) ?

Hey, I've read the docs and all I can find on this error. I am currently using your test code to make sure there was no other issues and I still get the the error. I am currently running on localhost:5173. I have whitelisted `https://localhost:5173`. It's a single page react app copy and paste of your tester code with my api key. I see in https://xumm.readme.io/discuss/633aea416f5766002e10ad5d the full path was mentioned. It has no / path. Is `https://localhost:5173` the full path? I don't understand what I'm getting wrong here I've had it working from backend using SDK with key and secret, but I am trying to implement from a front end application.

Today ripple launch their NFT (XLS20) on mainnet : https://dev.to/ripplexdev/xrp-ledger-nfts-are-here-9jb Is Xumm mainnet integrated with XLS20 on mainnet? Which node should we use for XLS20 mainnet? wss://xrplcluster.com wss://xrpl.link wss://s2.ripple.com

Can we connect XUMM Wallet with unity 3d

Is there any api endpoint of getting the Xumm app wallet balance?.

When signing a transfer request in an app (currently in beta, using the nft-devnet), I get a popup saying: Error Unable to get network fee, please make sure you are connected to the XRPL node. Any idea what might be going on? I'm omitting the transfer fee from the tx record, as suggested in the docs: https://xumm.readme.io/docs/payload-transaction-data#fee-transaction-fee My transaction looks like this: const request: XummPostPayloadBodyJson = { txjson: { TransactionType: 'Payment', Destination: walletAddress Amount: `${amount * 1000000}` // 1,000,000 drops in 1 xrp }, options: { return_url: { app: returnUrl, web: returnUrl } } };

Hey there, So we have successfully integrated XUMM to create our first version of the NFT marketplace app. We only support XRP right now, but we would like to expand this to allow alternative XRPL-issued tokens like XGBL for example. But we can't seem to figure out how to do so. Let's say I have another 50 XGBL tokens in my wallet. How can I use that token instead of XRP while I buy NFT through a transaction performed by XUMM. Thanks for all the help!

As xumm is developed for the xrpl, I am wondering if you could use the xumm sdk aswell for the federated side chains, so let’s Imagen there is a cbdc on a sidechain and I want the User to make a cross chain transaction, can we use the sdk for that ?