How to use the graphi.graphql.buildASTSchema function in graphi

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github joyent / cloudapi-gql / lib / utils.js View on Github external
exports.makeExecutableSchema = ({ typeDefs, resolvers = {} }) => {
  const parsed = graphql.parse(typeDefs);
  const astSchema = graphql.buildASTSchema(parsed, { commentDescriptions: true });

  for (const resolverName of Object.keys(resolvers)) {
    const type = astSchema.getType(resolverName);
    Assert(type || resolverName === '__schema', `Missing schema definition for resolver: ${resolverName}`);

    const typeResolver = resolvers[resolverName];

    // go through field resolvers for the parent resolver type
    for (const fieldName of Object.keys(typeResolver)) {
      const fieldResolver = typeResolver[fieldName];
      Assert(typeof fieldResolver === 'function', `${resolverName}.${fieldName} resolver must be a function`);

      if (type instanceof graphql.GraphQLScalarType) {
        type[fieldName] = fieldResolver;