multipart

func (*Writer) Boundary ¶

func (w *Writer) Boundary() string

Boundary returns the Writer's boundary.

func (*Writer) Close ¶

func (w *Writer) Close() error

Close finishes the multipart message and writes the trailing boundary end line to the output.

func (*Writer) CreateFormField ¶

func (w *Writer) CreateFormField(fieldname string) (io.Writer, error)

CreateFormField calls Writer.CreatePart with a header using the given field name.

func (*Writer) CreateFormFile ¶

func (w *Writer) CreateFormFile(fieldname, filename, ctype string) (io.Writer, error)

CreateFormFile is a convenience wrapper around Writer.CreatePart. It creates a new form-data header with the provided field name and file name.

func (*Writer) CreatePart ¶

func (w *Writer) CreatePart(header textproto.MIMEHeader) (io.Writer, error)

CreatePart creates a new multipart section with the provided header. The body of the part should be written to the returned Writer. After calling CreatePart, any previous part may no longer be written to.

func (*Writer) FormDataContentType ¶

func (w *Writer) FormDataContentType() string

FormDataContentType returns the Content-Type for an HTTP multipart/form-data with this Writer's Boundary.

func (*Writer) SetBoundary ¶

func (w *Writer) SetBoundary(boundary string) error

SetBoundary overrides the Writer's default randomly-generated boundary separator with an explicit value.

SetBoundary must be called before any parts are created, may only contain certain ASCII characters, and must be non-empty and at most 70 bytes long.

func (*Writer) WriteField ¶

func (w *Writer) WriteField(fieldname, value string) error

WriteField calls Writer.CreateFormField and then writes the given value.