Route Parameters
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Sometimes you need dynamic routes that change based on input, such as an ID.
Express allows you to define route parameters using :.
app.get('/users/:id', (req, res) => {
const userId = req.params.id;
res.send(`User ID is ${userId}`);
});
Here, :id is a dynamic value. When a request comes in, Express extracts it and makes it available in req.params.
For example:
'/users/1': id = 1;'/users/42': id = 42.
This is commonly used to get specific data, such as a user by ID or a product by ID.
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Route Parameters
Sometimes you need dynamic routes that change based on input, such as an ID.
Express allows you to define route parameters using :.
app.get('/users/:id', (req, res) => {
const userId = req.params.id;
res.send(`User ID is ${userId}`);
});
Here, :id is a dynamic value. When a request comes in, Express extracts it and makes it available in req.params.
For example:
'/users/1': id = 1;'/users/42': id = 42.
This is commonly used to get specific data, such as a user by ID or a product by ID.
フィードバックありがとうございます！
