Interface TransactionContextPropagator

Returns the currently defined transaction context using the registered transaction context propagator.

Sets the transaction context using the registered transaction context propagator. Runs the callback function, in which the transactionContext will be available by calling this#getTransactionContext.

The TransactionContextPropagator must persist the transactionContext and make it available to callback via this#getTransactionContext.

The precedence of merging context can be seen in the specification.

Example:

app.use((req: Request, res: Response, next: NextFunction) => {
    const ip = res.headers.get("X-Forwarded-For")
    OpenFeature.setTransactionContext({ targetingKey: req.user.id, ipAddress: ip }, () => {
        // The transaction context is used in any flag evaluation throughout the whole call chain of next
        next();
    });
})

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