Spatial Temporal Asset Catalog (STAC) Validator

This utility allows users to validate STAC json files against the STAC spec or against local STAC extensions.

It can be installed as command line utility and passed either a local file path or a url along with the STAC version to validate against. Example usages can be found below

Requirements

• Python 3.6
  • Requests
  • Docopt

For tests * pytest

Example

pip install .
stac_validator --help

Description: Validate a STAC item or catalog against the STAC specification.

Usage:
    stac_validator <stac_file> [--spec_dirs STAC_SPEC_DIRS] [--version STAC_VERSION] [--threads NTHREADS] [--verbose] [--timer] [--log_level LOGLEVEL] [--follow]

Arguments:
    stac_file  Fully qualified path or url to a STAC file.

Options:
    -v, --version STAC_VERSION   Version to validate against. [default: master]
    -h, --help                   Show this screen.
    --spec_dirs STAC_SPEC_DIRS   Path(s) to local directory containing specification files. Separate paths with a comma. [default: None]
    --threads NTHREADS           Number of threads to use. [default: 10]
    --verbose                    Verbose output. [default: False]
    --timer                      Reports time to validate the STAC. (seconds)
    --log_level LOGLEVEL         Standard level of logging to report. [default: CRITICAL]
    --follow                     Follow any child links and validate those links. [default: False]

stac_validator https://cbers-stac.s3.amazonaws.com/CBERS4/MUX/057/122/catalog.json -v v0.5.2

Example for STAC extensions

stac-spec/extensions/eo/example-landsat8.json --spec_dirs stac-spec/extensions/eo,local_schema/item_v061/json-schema --verbose

See the tests directory for examples on different usages.