Callback when transaction is done

Pera Wallet (ex Algorand Wallet)
, ,
1

Is there a way where we can add a callback link to the transaction and when it is done, it gives a call back to the system.

Thanks in advance.

2

I’m not aware of any way to do that easily. One way to accomplish that would be as follows -

  1. Install an Algorand node and an Algorand indexer.
  2. Configure the indexer to use a Postgres database.
  3. Create a trigger on the Postgres database that would identify the said transaction and invoke something like GitHub - pramsey/pgsql-http: HTTP client for PostgreSQL, retrieve a web page from inside the database..

I have not tried to implement the above, but I believe that it should be doable.

3

I am looking for a solution similar to this:

Blockchain Receive Payments API: Accept Bitcoin Payments - Blockchain

4

So, just to make sure I understand what you’re looking for -

You’re wondering if there is a way for your local node to issue a http callback once a transaction was successfully included in a block.

Is that the case ?

5

Yes you are right, like in btc if there is a transaction against a product or service, it will give a callback to the system on transaction confirmation.

6

Currently, neither the REST API, nor the goal client provides that functionality.

If the transaction is sent from the local host, once the transaction is sent ( and before its being included in a block ), you can spin a separate process that would monitor the transaction state using pending-transaction-information, and implement the callback as needed yourself.

I’m not a big fan of the above solution since

  • it’s limited to transactions being sent from your local host
  • it’s not scalable

I wish I had a better answer here… please let me know if that helps.

7

Thanks tsachi, I will look into it and if i found a solution, i will let you know too.

8

Ever find anything? You would think this is a standard option to have out of the box.

9

The cleanest solution is to query the indexer every new round and check if the transaction is recorded.

There is currently no push API on Algorand that I am aware of.