Get data from sawtooth address on clientside - hyperledger

Question

I have stored data on sawtooth in protobuf format at an address (address made from public key and transaction family).
Get request was made on
http://rest-api:8008/state/
to get data in the format
{
"data": "CkIwM2FjNjA3MTUzZmRlMzJhNzhiNDFlMzkxN2QwZDlkZmJmMmM2NjZmOWFhZGMzMWRiNTNjODZhNzFkNDMyNmZkNGUSBnNlbGxlchoROTc4LTAtNTc2LTUyMzk1LTAiETgxOS02OTAtNzk4Nng1MTE5Kg0xLTk4MTAtMTE0NS01",
"head": "bea2911b4d84b897300fc4a9eb6b56b7ddc59c88c115dab6c09935d658b57cf229b538a3cb3d407647211c8847e46db07f9cff65af2835dfc7732be9b443fae3",
"link": "http://192.168.1.13:8008/state/318c9fa678220444fb9b209a57c849320a7f61c984e5b8a6a56880030728bdb530a5d0?head=bea2911b4d84b7c7300fc4a9eb6b56b7ddc59c88c115dab6c09935d658b57cf229b538a3cb3d407647211c8847e46db07f9cff65af2835dfc7732be9b443fae3"
}
I posted Account data on the sawtooth-rest-api, if the details are correct(checked by processor), Account with additional "Public Key" is inserted onto the blockchain. This is the account protobuf class, which was serialized before it was inserted onto the blockchain.
message Account {
string public_key = 1;
string user_type = 2;
string adhaar_number = 3;
string phone_number = 4;
string pan_card_number = 5;
}
transaction = Account()
transaction.ParseFromString( base64.b64decode(data.encode()))
THat just gave a number 129.
Update:
The account data serialization output is
b'\nB033c10fa02a3b602f008e7837a48d4492f5105417111404c4404b49f51222d30c1\x12$60405711-dd32-47c1-a914-3e19ee5177b1\x1a\x06seller"
\x11978-1-61207-456-6*\x10+64(0)19727879362\r0-609-80129-5'
when I base64 encoded it, it gives exactly the same string which i got from sawtooth api under the data key.
but somehow transaction.ParseFromString gives just an integer of 3 digits, Couldnt get the account back.
Sorry I figured this out:
After
account=transaction.ParseFromString(<serializedBytes>)
The account details can be accessed like normal class variables.
account.public_key
account.adhaar_number

Answer 1

If my understanding is correct, you retrieve data vis-a-vis the REST API /state/xxxx or /state?address=xxxx.
When data is put on the chain in a TransactionProcessor via setState or similar call, it does a base64 encoding first.
You will need to do a base64 decode and then ParseFromString on that result.