graphql-paper/es/graphql/create-schema.mjs

A flexible in-memory store based on a GraphQL Schema

import { isSchema, buildASTSchema, buildSchema, printSchema } from 'graphql';
function copySchema(schema) {
  return buildSchema(printSchema(schema));
}
function createSchema(schema) {
  if (isSchema(schema)) return copySchema(schema);
  if (typeof schema === 'object' && schema.kind === 'Document') {
    try {
      return buildASTSchema(schema);
    } catch (error) {
      throw new Error('Unable to build a schema from the AST Schema passed into the `graphqlSchema` dependency. Failed with error:\n\n' + error.message);
    }
  }
  if (typeof schema === 'string') {
    try {
      return buildSchema(schema);
    } catch (error) {
      throw new Error('Unable to build a schema from the string passed into the `graphqlSchema` dependency. Failed with error:\n\n' + error.message);
    }
  }
  throw new Error('Unable to build schema, pass in an instance of schema or a string');
}
export { createSchema };
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