Header Manipulation

ctx.setHeader(key, value)

Sets an outgoing response header. Supports strings, numbers, or arrays of strings (for headers like Set-Cookie):

app.get("/custom-headers", (ctx) => {
  ctx.setHeader("X-Powered-By", "Volten");
  ctx.setHeader("X-Request-Id", "req_abc123");
  return ctx.send("OK");
});

ctx.getHeader(key)

Retrieves the value of a previously set outgoing response header:

const contentType = ctx.getHeader("Content-Type");

ctx.getHeaders()

Returns an object of all outgoing headers currently registered on the response.

ctx.removeHeader(key)

Removes an outgoing header before it is transmitted to the client:

ctx.setHeader("X-Internal-Debug", "true");
// Later in the pipeline:
ctx.removeHeader("X-Internal-Debug");

ctx.type

Convenient getter and setter for the Content-Type header:

ctx.type = "application/xml";
console.log(ctx.type); // 'application/xml'

ctx.headersSent and ctx.sent

• ctx.headersSent: Boolean indicating whether HTTP response headers have been sent over the wire.
• ctx.sent: Boolean indicating whether the response stream has closed/ended.

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