kubo/core/coreapi/interface/path.go
Łukasz Magiera d5b5e0d7ac coreapi: add more docs for path
License: MIT
Signed-off-by: Łukasz Magiera <magik6k@gmail.com>
2018-07-17 08:43:48 +02:00

61 lines
1.7 KiB
Go

package iface
import (
cid "gx/ipfs/QmYVNvtQkeZ6AKSwDrjQTs432QtL6umrrK41EBq3cu7iSP/go-cid"
)
// Path is a generic wrapper for paths used in the API. A path can be resolved
// to a CID using one of Resolve functions in the API.
//
// Paths must be prefixed with a valid prefix:
//
// * /ipfs - Immutable unixfs path (files)
// * /ipld - Immutable ipld path (data)
// * /ipns - Mutable names. Usually resolves to one of the immutable paths
//TODO: /local (MFS)
type Path interface {
// String returns the path as a string.
String() string
// Namespace returns the first component of the path.
//
// For example path "/ipfs/QmHash", calling Namespace() will return "ipfs"
Namespace() string
// Mutable returns false if the data pointed to by this path in guaranteed
// to not change.
//
// Note that resolved mutable path can be immutable.
Mutable() bool
}
// ResolvedPath is a resolved Path
type ResolvedPath interface {
// Cid returns the CID of the object referenced by the path.
//
// Example:
// If you have 3 linked objects: QmRoot -> A -> B, and resolve path
// "/ipfs/QmRoot/A/B", the Cid method will return the CID of object B
Cid() *cid.Cid
// Root returns the CID of the root object of the path
//
// Example:
// If you have 3 linked objects: QmRoot -> A -> B, and resolve path
// "/ipfs/QmRoot/A/B", the Root method will return the CID of object QmRoot
Root() *cid.Cid
// Remainder returns unresolved part of the path
//
// Example:
// If you have 2 linked objects: QmRoot -> A, where A is a CBOR node
// containing the following data:
//
// {"foo": {"bar": 42}}
//
// When resolving "/ipld/QmRoot/A/foo/bar", Remainder will return "foo/bar"
Remainder() string
Path
}