Interface MessageRepository

Application-level abstraction for persisting and retrieving Message objects.

Implementations encapsulate the database-specific details. Callers of this abstraction should not need to know whether messages are stored in PostgreSQL, how the connection is managed, or how rows are mapped.

interface MessageRepository {
createMessage(message: Message): Promise<Message>;
getMessageById(id: number): Promise<Message | null>;
}

Index

Methods

createMessage getMessageById

Methods

createMessage

createMessage(message: Message): Promise<Message>
Persist a message and return the stored representation.

The supplied message must include an identifier, which is stored as-is to match the underlying messages table schema.
Parameters
- message: Message
Returns Promise<Message>
- Defined in backend/src/repository/message-repository.ts:18

getMessageById

getMessageById(id: number): Promise<Message | null>
Retrieve a message by its identifier.

Returns null when no message with the given identifier exists. Database failures are not swallowed and propagate to the caller.
Parameters
- id: number
Returns Promise<Message | null>
- Defined in backend/src/repository/message-repository.ts:26

Interface MessageRepository

Index

Methods

Methods

createMessage

Parameters

Returns Promise<Message>

getMessageById

Parameters

Returns Promise<Message | null>

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