Understanding the Behavior of TON API Endpoints and the "count" Parameter

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I am using the TON API to fetch transaction data, and I have noticed some discrepancies when using the /getTransactions, /lookupBlock, and /getBlockTransactions methods.

The /getTransactions method returns a transaction with a specific utime, but when I look up the block using /lookupBlock and then fetch the transactions using /getBlockTransactions, I can't find any transaction with the same logical time.

Is this expected behavior, or am I missing something?

Additionally, I would like to know the purpose of the "count" parameter in the /getBlockTransactions method, as it seems to have no effect on the results.

This question was imported from Telegram Chat: https://t.me/tondev_eng/1371

  				
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The discrepancies you are experiencing with the TON API endpoints could be due to querying the incorrect workchain. The address UQCzwxqIw1pt41DND9pgGfAOhJKtQQEgjVcpn0rHxv-4b8Ob resides in the basechain (workchain=0), but you are looking for transactions in the masterchain (workchain=-1).

To find the correct transaction, follow these steps:

Query the /getBlockTransactions endpoint with the correct workchain (workchain=0) and shard (-9223372036854775808) values:

https://toncenter.com/api/v2/getBlockTransactions?workchain=0&shard=-9223372036854775808&seqno=21407484

This query should return the required transaction.

If you still cannot find the transaction, retrieve all shards for the block you found using the /shards endpoint:

https://toncenter.com/api/v2/shards?seqno=16512830

Then, for the block you found and for each shard, get the transactions list. You should find your transaction in the block with the following parameters: workchain=0, shard=-9223372036854775808, and seqno=21407484.

By querying the correct workchain and shard, you should be able to locate the transaction with the same logical time as initially given to the /getTransactions method.

 						
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