Validation tools for Reasoner API
Reason this release was yanked:
Superseded by 3.1.5
Project description
Reasoner Validator
This package provides software methods to Translator components (e.g. Knowledge Providers and Autonomous Relay Agents) using any version of the Translator Reasoner API (TRAPI) and the Biolink Model.
See the full documentation and the contributor guidelines.
Using the Package
Installing the Module
pip install reasoner-validator
Installing the Module Locally from Source
git clone https://github.com/NCATSTranslator/reasoner-validator.git
cd reasoner-validator
pip install -e .
Building the Documentation Locally
To build the documentation locally:
cd docs
make html
Validation Run as a Web Service
The Reasoner Validator is available wrapped as a simple web service. The service may be run directly or as a Docker container.
API
The web service has a single POST endpoint /validate taking a simple JSON request body, as follows:
{
"trapi_version": "1.3.0",
"biolink_version": "3.0.5",
"sources": {
"ara_source": "infores:aragorn",
"kp_source": "infores:panther",
"kp_source_type": "primary"
},
"strict_validation": true,
"message": {...}
}
The request body consists of JSON data structure with two top level tag:
- An optional
trapi_versiontag can be given a value of the TRAPI version against which the message will be validated, expressed as a SemVer string (defaults to 'latest' if omitted; partial SemVer strings are resolved to their 'latest' minor and patch releases). - An optional
biolink_versiontag can be given a value of the Biolink Model version against which the message knowledge graph semantic contents will be validated, expressed as a SemVer string (defaults to 'latest' Biolink Model Toolkit supported version, if omitted). - An optional
sourceswith an object dictionary (example shown) specifying the ARA and KP sources involved in the TRAPI call (specified by infores CURIE) and the expected KP provenance source type, i.e. 'primary' implies that the KP is tagged as a 'biolink:primary_knowledge_source'. Optional in that the root "sources" or any of the subsidiary tags may be omitted (default to None) - An optional
strict_validationflag (default: None or 'false'). If 'true' then follow strict validation rules, such as treating as 'error' states the use ofcategory,predicateandattribute_type_idthat are of typeabstractormixinas errors. - A mandatory
messagetag should have as its value the complete TRAPI Message JSON data structure to be validated (see example below).
Running the Web Service Directly
The service may be run directly as a python module. It is suggested that a virtual environment first be created (using virtualenv, conda, within your IDE, or equivalent). Then, certain Python dependencies need to be installed, as follows:
pip install -r requirements-service.txt
The module may afterwards be run, as follows:
python -m api.main
Go to http://localhost/docs to see the service documentation and to use the simple UI to input TRAPI messages for validation.
Typical Output
As an example of the kind of output to expect, if one posts the following JSON message data to the /validate endpoint:
{
"trapi_version": "1.3.0",
"biolink_version": "2.4.8",
"message": {
"query_graph": {
"nodes": {
"type-2 diabetes": {"ids": ["MONDO:0005148"]},
"drug": {"categories": ["biolink:Drug"]}
},
"edges": {
"treats": {"subject": "drug", "predicates": ["biolink:treats"], "object": "type-2 diabetes"}
}
},
"knowledge_graph": {
"nodes": {
"MONDO:0005148": {"name": "type-2 diabetes"},
"CHEBI:6801": {"name": "metformin", "categories": ["biolink:Drug"]}
},
"edges": {
"df87ff82": {"subject": "CHEBI:6801", "predicate": "biolink:treats", "object": "MONDO:0005148"}
}
},
"results": [
{
"node_bindings": {
"type-2 diabetes": [{"id": "MONDO:0005148"}],
"drug": [{"id": "CHEBI:6801"}]
},
"edge_bindings": {
"treats": [{"id": "df87ff82"}]
}
}
]
}
}
one should typically get a response body like the following JSON validation result back:
{
"trapi_version": "1.3.0",
"biolink_version": "2.4.8",
"report": [
{
"code": "warning.node.unmapped_prefix",
"node_id": "CHEBI:6801",
"categories": "['biolink:Drug']"
},
{
"code": "error.node.missing_categories",
"node_id": "MONDO:0005148"
},
{
"code": "error.edge.attribute.missing"
}
]
}
Running the Web Service within Docker
The Reasoner Validator web service may be run inside a docker container, using Docker Compose.
First, from the root project directory, build the local docker container
docker-compose build
Then, run the service:
docker-compose up -d
Once again, go to http://localhost/docs to see the service documentation.
To stop the service:
docker-compose down
Of course, the above docker-compose commands may be customized by the user to suit their needs. Note that the docker implementation assumes the use of uvicorn
Summary of Releases
The Reasoner Validator package is evolving along with progress in TRAPI and Biolink standards within the NCATS Biomedical Knowledge Translator.
- 1.* releases - very preliminary releases of the validation code, now obsolete
- 2.* releases - had a base TRAPI schema 'validate' with errors throwing a Python exception; later minor iterations added in Biolink Model validation returning a flat dictionary of arcane string messages
- 3.* releases - wrapped the all validation with a ValidatorReporter class serving to collect and return validation messages in a disciplined, codified manner (as a master YAML file with hierarchically-indexed Python string templates)
Code Limitations (implied Future Work?)
- This release of the Reasoner Validator Web Service will detect TRAPI 1.0.* releases but doesn't strive to be completely backwards compatible with them (considering that they are less relevant now).
- The web service validation doesn't do deep validation of the Results part of a TRAPI Message
- The validation is only run on the first 1000 nodes and 100 edges of graphs, to keep the validation time tractable (this risks not having complete coverage of the graph)
- Biolink Model toolkit is not (yet) cached so changing the model version during use will result in some latency in results
- The validator service doesn't (yet) deeply validate non-core node and edge slot contents of Message Knowledge Graphs
- The validator service doesn't (yet) attempt validation of Query Graph nodes and edges 'constraints' (e.g.
biolink:Associationetc.domainandrangeconstraints) - Query Graph node 'ids' are not validated except when an associated 'categories' parameter is provided for the given node. In general, Query Graph Validation could be elaborated.
- The system should leverage the Reasoner Pydantic Models
Core Contributors
- Kudos to Patrick Wang, who created the original implementation of the Reasoner-Validator project while with CoVar (an entrepreneurial team contributing to the Biomedical Data Translator).
- Thanks to Kenneth Morton (CoVar) for his reviews of the latest code.
- The project is currently being extended and maintained by Richard Bruskiewich (Delphinai Corporation, on the SRI team contributing to Translator)
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