If your friend later refuses to go through on the deal, No, you cannot hold them liable for breach of contract because there was not any consideration.
A binding agreement which is legally enforceable and that establishes, or defines as well as it controls the parties' respective rights and responsibilities in relation to one another are called a contract.
In most of the cases, the exchange of commodities and services, or monetary value takes place during the course of the contract, or the parties involved commit to doing so at a later time.
Because there was not any consideration exchanged between the parties, you will not be able to hold your freind accountable for a breach of contract in the event that they subsequently back out of the arrangement.
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