graphql-paper/validations/validate.js

A flexible in-memory store based on a GraphQL Schema

'use strict';

var graphql = require('graphql');
var typeExists = require('../graphql/type-exists.js');
var typeDoesNotExist = require('./errors/type-does-not-exist.js');
var typeIsNotDocumentCompatible = require('./errors/type-is-not-document-compatible.js');
var validateField = require('./validate-field.js');
var nullDocument = require('../document/null-document.js');
function validate(graphqlSchema, document, store, validators) {
  if (nullDocument.isNullDocument(document)) {
    return;
  }
  const typeName = document.__typename;
  const type = graphqlSchema.getType(typeName);
  if (!type) {
    throw new Error(`Type ${typeName} does not exist in the graphql schema.`);
  }
  if (!graphql.isObjectType(type)) {
    throw new typeIsNotDocumentCompatible.TypeIsNotDocumentCompatible({
      type
    });
  }
  if (!typeExists.typeExists(graphqlSchema, typeName)) {
    throw new typeDoesNotExist.TypeDoesNotExist({
      typename: typeName
    });
  }
  const combinedValidators = [...validators.document, validateField.validateField(validators.field)];
  combinedValidators.forEach(validator => validator.validate({
    store,
    graphqlSchema,
    document,
    type
  }));
}
exports.validate = validate;
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