graphql-query-test-mock/lib/getOperationNameFromQuery.js

Mock queries to your GraphQL backend in your Jest tests.

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.getOperationNameFromQuery = getOperationNameFromQuery;

var _parser = require("graphql/language/parser");

function getOperationNameFromQuery(query) {
  try {
    const {
      definitions
    } = (0, _parser.parse)(query);
    const definition = definitions.length > 0 ? definitions.find(({
      kind
    }) => kind === 'OperationDefinition') : null;
    const operationName = definition && definition.name && definition.name.value ? definition.name.value : null;

    if (!operationName) {
      throw new Error();
    }

    return String(operationName);
  } catch (e) {
    throw new Error('Could not find query name.');
  }
}