Issue with Transactions Using Concordium Mobile Wallet

subhajit · July 19, 2024, 7:17am

Hi Team,

I am currently working on a project that involves transactions using the Concordium blockchain. I am using the following versions of your SDKs:

@concordium/browser-wallet-api-helpers: 2.5.0
@concordium/web-sdk: ^3.5.0
These versions work perfectly with the browser wallet. However, I encounter errors when attempting to perform the same transactions using the mobile wallet.

Attaching screenshot of error and code

oleg-android · July 19, 2024, 10:35am

Hi Subhajit.
Can you please clarify what you mean by “attempting to perform the same transactions using the mobile wallet”? Do you try to invoke the transaction through WalletConnect?

subhajit · July 19, 2024, 10:41am

like contract initialisation

oleg-android · July 19, 2024, 10:44am

Are you trying to use WalletConnect?

subhajit · July 19, 2024, 10:51am

yes we are using WalletConnect

oleg-android · July 19, 2024, 11:05am

Please, try signAndSendTransaction method instead of sendTransaction

subhajit · July 19, 2024, 12:22pm

getting same error
image_2024_07_19T12_01_21_098Z

Even getting error from browser wallet also this time

oleg-android · July 19, 2024, 2:04pm

Got it, I’ll ask someone with more experience in Web SDK to help you

Doris · July 19, 2024, 6:37pm

You might want to check out the wallet-connectors library. It has an interface to sign and send transactions via walletConnect.

github.com

Concordium/concordium-node-sdk-js/blob/main/packages/wallet-connectors/src/WalletConnect.ts#L369


      
              payload: SendTransactionPayload,
              typedParams?: TypedSmartContractParameters
          ) {
              const params = {
                  type: getTransactionKindString(type),
                  sender: accountAddress,
                  payload: accountTransactionPayloadToJson(serializePayloadParameters(type, payload, typedParams)),
                  schema: convertSchemaFormat(typedParams?.schema),
              };
              try {
                  const { hash } = (await this.connector.client.request({
                      topic: this.session.topic,
                      request: {
                          method: 'sign_and_send_transaction',
                          params,
                      },
                      chainId: this.chainId,
                  })) as SignAndSendTransactionResult; // TODO do proper type check
                  return hash;
              } catch (e) {
                  if (isSignAndSendTransactionError(e) && e.code === 500) {

In most of our dapps we use the wallet-connectors library and the react-components library if we want to build a dapp front-end that should work with both (browser wallet and mobile wallet).