Headers

The Headers tab contains a key-value editor for setting HTTP request headers. Nouto provides autocomplete for standard header names and common values so you can find the right header without looking up documentation.

Adding Headers

Click Add Header or press the shortcut shown at the bottom of the tab to add a new row. Each row has:

• Key: the header name (e.g., Content-Type, X-Request-ID)
• Value: the header value
• Enabled checkbox: uncheck to temporarily disable a header without removing it

Autocomplete

When you start typing in the Key field, Nouto shows a dropdown of matching standard HTTP headers with a short description of each. Selecting a suggestion fills in the header name and, for headers with common values (like Content-Type or Accept), also suggests values.

Recognized headers include request headers from RFC 7231 and common non-standard headers (Authorization, X-Correlation-ID, X-Request-ID, etc.).

Disabling Headers

The checkbox on each row toggles the header on and off. Disabled headers are not sent with the request but remain in the editor so you can re-enable them later. This is useful for testing which headers are required by an endpoint.

Variable Support

Both the key and value fields accept {{variable}} syntax:

Authorization: {{AUTH_HEADER}}
X-Tenant-ID: {{TENANT_ID}}
X-Timestamp: {{$timestamp.unix}}

Automatic Headers

Nouto adds certain headers automatically based on the request configuration:

Header	When added automatically
Content-Type	When the Body tab has a type selected
Authorization	When the Auth tab has credentials configured
Content-Length	Calculated from the body size

You can override any automatic header by adding a manual entry with the same name. Your manually specified value takes precedence.

Inherited Headers

Collections and folders can define headers that apply to all requests inside them. A request set to inherit from its parent receives those headers without any configuration. You can add request-level headers in addition to the inherited ones.

See Collections for instructions on setting collection-level and folder-level headers.