JSON-LD context { "@context": "http://www.w3.org/ns/shex.jsonld" }

Schema { start:shapeExpr? shapes:[shapeExpr+]? }
shapeExpr = NodeConstraint | Shape ;
shapeExprLabel = IRIREF ;
NodeConstraint {nodeKind:("iri" | "bnode" | "nonliteral" | "literal")? datatype:IRIREF? numericFacet* values:[valueSetValue+]? }
numericFacet =(mininclusive|minexclusive|maxinclusive|maxexclusive):numericLiteral
numericLiteral =INTEGER | DECIMAL | DOUBLE ;
valueSetValue=objectValue | IriStem ;
objectValue=IRIREF | ObjectLiteral ;
ObjectLiteral{value:STRING language:STRING? type:IRIREF? }
IriStem{stem:IRIREF }
Shape {closed:BOOL? expression:tripleExpr}
tripleExpr =EachOf | TripleConstraint ;
EachOf {expressions:[TripleConstraint{2,}]}
TripleConstraint {predicate:IRIREF valueExpr:shapeExpr? min:INTEGER? max:INTEGER?}

ShExC example

PREFIX dc: <http://purl.org/dc/terms/>
PREFIX foaf: <http://xmlns.com/foaf/0.1/>
PREFIX xsd: <http://www.w3.org/2001/XMLSchema#>
BASE <http://a.example/schema>

<#book> {
  dc:title xsd:string ;
  dc:creator @<#person>+ ;
}

<#person> {
  foaf:name xsd:string+ ;
  foaf:homepage IRI?
}
    

ShExJ-Lite equivalent

{
  "type": "Schema",
  "@context": "http://www.w3.org/ns/shex.jsonld",
  "shapes": [
    {
      "type": "Shape",
      "id": "http://a.example/schema#book",
      "expression": {
        "type": "EachOf",
        "expressions": [
          {
            "type": "TripleConstraint",
            "predicate": "http://purl.org/dc/terms/title",
            "valueExpr": {
              "type": "NodeConstraint",
              "datatype": "http://www.w3.org/2001/XMLSchema#string"
            }
          },
          {
            "type": "TripleConstraint",
            "predicate": "http://purl.org/dc/terms/creator",
            "valueExpr": "http://a.example/schema#person",
            "min": 1,
            "max": -1
          }
        ]
      }
    },
    {
      "type": "Shape",
      "id": "http://a.example/schema#person",
      "expression": {
        "type": "EachOf",
        "expressions": [
          {
            "type": "TripleConstraint",
            "predicate": "http://xmlns.com/foaf/0.1/name",
            "valueExpr": {
              "type": "NodeConstraint",
              "datatype": "http://www.w3.org/2001/XMLSchema#string"
            },
            "min": 1,
            "max": -1
          },
          {
            "type": "TripleConstraint",
            "predicate": "http://xmlns.com/foaf/0.1/homepage",
            "valueExpr": {
              "type": "NodeConstraint",
              "nodeKind": "iri"
            },
            "min": 0,
            "max": 1
          }
        ]
      }
    }
  ]
}