What does res JSON return?
The res. send function sets the content type to text/Html which means that the client will now treat it as text. It then returns the response to the client. … json function on the other handsets the content-type header to application/JSON so that the client treats the response string as a valid JSON object.
What does res JSON () do?
json() Function. The res. json() function sends a JSON response. This method sends a response (with the correct content-type) that is the parameter converted to a JSON string using the JSON.
Does Res JSON end the response?
json calls res. send at the end. When you have an object or array which you have to pass as a response then you can use any one of them.
Does Res send return?
The body parameter can be a String or a Buffer object or an object or an Array. Parameter: This function accepts a single parameter body that describe the body which is to be sent in the response. Returns: It returns an Object.
What is RES end?
end() Function. The res. end() function is used to end the response process. This method actually comes from the Node core, specifically the response.
When should I use Res send?
send() Send a string response in a format other than JSON (XML, CSV, plain text, etc.). This method is used in the underlying implementation of most of the other terminal response methods.
What is JSON format?
What is the difference between Res send and res end?
end() function is used to end the response process. res. send() function is the combination of res.
What is res data?
Short for response , the res object is one half of the request and response cycle to send data from the server to the client-side through HTTP requests.
What is RES in API?
The res object represents the HTTP response that an Express app sends when it gets an HTTP request.
Do I need to return after Res send?
It is a common convention to not use exceptions/errors for ordinary control flow. I therefore recommend to place a return statement after the res. send call to make your function stop executing further.
What happens after Res send?
res. send() or res. json() should end all writing to the response stream and send the response. However, you absolutely can call next() if you want to do further processing after the response is sent, just make sure you don’t write to the response stream after you call res.
Will code execute after Res send?
Sure end ends the HTTP response, but it doesn‘t do anything special to your code. You can continue doing other things even after you’ve ended a response. What you can’t do, however, is do anything useful with res .