Stake SOL

Effortlessly stake SOL on the Jup validator using the StakeManager class. This guide explains how to execute staking operations with simplicity and precision.

Code Breakdown

1. Endpoint Interaction

The staking function interacts with the Jup API to prepare a staking transaction:

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url = f"https://worker.jup.ag/blinks/swap/So11111111111111111111111111111111111111112/jupSoLaHXQiZZTSfEWMTRRgpnyFm8f6sZdosWBjx93v/{amount}"  
payload = {"account": str(agent.wallet_address)}  

async with aiohttp.ClientSession() as session:  
    async with session.post(url, json=payload) as res:  
        if res.status != 200:  
            raise Exception(f"Failed to fetch transaction: {res.status}")  
        data = await res.json()  

2. Transaction Deserialization and Signing

The API returns a serialized transaction that needs to be deserialized, updated, and signed by the user's wallet:

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txn = VersionedTransaction.deserialize(base64.b64decode(data["transaction"]))  
latest_blockhash = await agent.connection.get_latest_blockhash()  
txn.message.recent_blockhash = latest_blockhash.value.blockhash  
txn.sign([agent.wallet])  

3. Submitting and Confirming the Transaction

The transaction is submitted to the Solana network, and its status is confirmed:

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signature = await agent.connection.send_raw_transaction(  
    txn.serialize(),  
    opts={"skip_preflight": False, "max_retries": 3},  
)  

await agent.connection.confirm_transaction(  
    signature,  
    commitment=Confirmed,  
    last_valid_block_height=latest_blockhash.value.last_valid_block_height,  
)  

4. Error Handling

If any part of the staking process fails, meaningful exceptions are raised for debugging:

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except Exception as e:  
    raise Exception(f"jupSOL staking failed: {str(e)}")  

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Key Features

1. Effortless Staking

   • Automatically interacts with Jup API to stake SOL.

2. Transaction Safety

   • Ensures the transaction uses the latest blockhash and is properly signed.

3. Error Resilience

   • Catches and reports API or network issues to ensure reliable staking operations.

4. Minimal Setup

   • Only requires the agent instance and the desired staking amount.