Objects

Publishing an object

Weave's serialization layer saves and versions objects.

Python

import weave
# Initialize tracking to the project 'intro-example'
weave.init('intro-example')
# Save a list, giving it the name 'cat-names'
weave.publish(['felix', 'jimbo', 'billie'], 'cat-names')

TypeScript

Publishing in TypeScript is still early, so not all objects are fully supported yet.

import * as weave from 'weave'

// Initialize tracking to the project 'intro-example'
const client = await weave.init('intro-example')

// Save an array, giving it the name 'cat-names'
client.publish(['felix', 'jimbo', 'billie'], 'cat-names')

Saving an object with a name will create the first version of that object if it doesn't exist.

Getting an object back

Python

weave.publish returns a Ref. You can call .get() on any Ref to get the object back.

You can construct a ref and then fetch the object back.

weave.init('intro-example')
cat_names = weave.ref('cat-names').get()

TypeScript

This feature is not available in TypeScript yet.  Stay tuned!

Ref styles

A fully qualified weave object ref uri looks like this:

weave:///<entity>/<project>/object/<object_name>:<object_version>

• entity: wandb entity (username or team)
• project: wandb project
• object_name: object name
• object_version: either a version hash, a string like v0, v1..., or an alias like ":latest". All objects have the ":latest" alias.

Refs can be constructed with a few different styles

• weave.ref(<name>): requires weave.init(<project>) to have been called. Refers to the ":latest" version
• weave.ref(<name>:<version>): requires weave.init(<project>) to have been called.
• weave.ref(<fully_qualified_ref_uri>): can be constructed without calling weave.init