Rest.ProxyCall.lookup_header

### Method

# Rest ProxyCalllookup_header

#### Declaration [src]

    const gchar*
    rest_proxy_call_lookup_header (
      RestProxyCall* call,
      const gchar* header
    )

#### Description [src]

Get the value of the header called `header`.

#### Parameters

`header` | `const gchar*`
| The header name.
| The data is owned by the caller of the function.
| The string is a NUL terminated UTF-8 string.

#### Return value

Returns: | `utf8`
| The header value, or `NULL` if it does not exist. This string is owned by the `RestProxyCall` and should not be freed.
| The data is owned by the instance.
| The string is a NUL terminated UTF-8 string.