Yes, all you need is an RPC endpoint (at one of the public API nodes).
Excellent, thank you! So, I assume I can do this with Steemit's API then? I was just worried that all the call methods were read-only.
Would you happen to have any curl examples for broadcasting a tx? If not, that's ok, I'll just go hunting for it. Or, I'll just look through the source code to figure out what parameters the api wants.
Thank you very much for the assistance fellow wizard! :)
Ah! I think I found what I was looking for.
It seems like the hard part is just going to be constructing the message and getting the signatures as Xeroc described ...
Exactly, that would be a hard part but we have few libraries that can help you deal with signing.
The easy part looks like:
{"id":1,"jsonrpc":"2.0","method":"call","params":["network_broadcast_api","broadcast_transaction_synchronous",[{"operations":[["vote",{"voter":"fulltimegeek","author":"gtg","permlink":"steem-pressure-3-steem-node-101","weight":10000}]],"extensions":[]}]]}but then you need to sign it and even before that to add reference block number and block prefix along with expiration time and to all that you add a signature which the call something like this:
{"id":1,"jsonrpc":"2.0","method":"call","params":["network_broadcast_api","broadcast_transaction_synchronous",[{"ref_block_num":123,"ref_block_prefix":1234567890,"expiration":"2018-03-08T12:34:56","operations":[["vote",{"voter":"fulltimegeek","author":"gtg","permlink":"steem-pressure-3-steem-node-101","weight":10000}]],"extensions":[],"signatures":["signaturesignaturesignaturesignaturesignaturesignaturesignature"]}]]}That would be hard if you would like to script that signing in bash but existing libraries will do that for you without need of re-inventing the wheel.
@GTG, you are one sexy bastard! lol ... Those curl snippets are a huge aphrodisiac to me ...
Thank you again for all you do and your help. I have looked into libraries, as you mentioned, but I'm trying to do this natively in Android so I don't need any dependencies. I think I have it all figured out now.
Expect some dank apps from me sometime this year :D