Initialize a new Meta Knowledge Graph object
const kg = require("@biothings-explorer/smartapi-kg")
let meta_kg = new kg()
Construct a meta knowledge graph through fetching SmartAPI Specs from SmartAPI API.
when specify "source='remote'", the package will query: "https://smart-api.info/api/query?q=tags.name:translator&size=100" and retrieve all SmartAPI specs with translator tag. The SmartAPI Specs will then be loaded into meta_kg.
await meta_kg.constructMetaKG()
You can filter the meta_kg based on a specific field in "association".
Available fields to be quried includes:
input_id,
api_name,
input_type,
output_type,
output_id,
source.
The query below returns all meta-kg operations having "input_type" as "Disease".
let res = meta_kg.filter({input_type: "Disease"});
res;
List unique output types corresponding to "Disease" as input_type
new Set(res.map(item => item.association.output_type));
List all unique predicates corresponding to input_type as "Disease"
new Set(res.map(item => item.association.predicate));
You can also query on multiple fields.
The query below returns all meta-kg operations having "predicate" as "treats" and using "CHEMBL.COMPOUND" as its "input_id".
meta_kg.filter({predicate: 'treats', input_id: 'CHEMBL.COMPOUND'})
The field value could also be a list.
The query below returns all meta-kg operations having "predicate" as EITHER "treats" OR "physically_interacts_with" and using "CHEMBL.COMPOUND" as its "input_id".
meta_kg.filter({predicate: ['treats', 'physically_interacts_with'], input_id: 'CHEMBL.COMPOUND'})
no comments
sign in to comment