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improve transaction processing #741

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Aug 30, 2024
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improve transaction processing #741

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6 changes: 5 additions & 1 deletion docs/develop/dapps/asset-processing/README.md
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Expand Up @@ -178,6 +178,10 @@ main();
7. Service should regularly poll the [getTransactions](https://toncenter.com/api/v2/#/transactions/get_transactions_getTransactions_get) method for the `wallet` contract. Matching confirmed transactions with the outgoing payments by (`destination_address`, `value`, `comment`) allows to mark payments as finished; detect and show the user the corresponding transaction hash and lt (logical time).
8. Requests to `v3` of `high-load` wallets have an expiration time equal to 60 seconds by default. After that time unprocessed requests can be safely resent to the network (see steps 3-6).

:::caution
If `value` attached is too small transaction can get aborted with error `cskip_no_gas`. In this case Toncoins will be transferred successfully but no logic on other side will be executed (TVM won't even launch). About gas limits you can read more [here](/develop/howto/blockchain-configs#param-20-and-21).
:::

### Get transaction id

It can be unclear that to get more information on transaction user must scan blockchain through [getTransactions](https://toncenter.com/api/v2/#/transactions/get_transactions_getTransactions_get) function.
Expand Down Expand Up @@ -569,4 +573,4 @@ if __name__ == "__main__":

## SDKs

You can find a list of SDKs for various languages (JS, Python, Golang, C#, Rust, etc.) list [here](/develop/dapps/apis/sdk).
You can find a list of SDKs for various languages (JS, Python, Golang, C#, Rust, etc.) list [here](/develop/dapps/apis/sdk).
4 changes: 3 additions & 1 deletion docs/develop/dapps/asset-processing/jettons.md
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Expand Up @@ -238,6 +238,8 @@ To send **comment** you need setup `forward payload`. Set **first 32 bits to 0x0

Finally, to retrieve `Excess` message you must set up `response destination`.

Sometimes you may encounter a `709` error when sending jetton. It says that the value of the toncoin attached to the message is not enough to send it. Make sure that `Toncoin > to_nano(TRANSFER_CONSUMPTION) + forward_ton_amount`. `TRANSFER_CONSUMPTION` in most cases may be 0.037 if the `forward_payload` is not too large. Also don't forget to attach enough `forward_ton_amount` or you can encounter a `cskip_no_gas` error if attached value too small.


:::tip
Check [best practices](/develop/dapps/asset-processing/jettons#best-practices) for _"send jettons with comments"_ example.
Expand Down Expand Up @@ -1199,4 +1201,4 @@ You can find a list of SDKs for various languages (js, python, golang, C#, Rust,

* [Payments Processing](/develop/dapps/asset-processing/)
* [NFT processing on TON](/develop/dapps/asset-processing/nfts)
* [Metadata parsing on TON](/develop/dapps/asset-processing/metadata)
* [Metadata parsing on TON](/develop/dapps/asset-processing/metadata)
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