polen/build/api/schema/read.js

A framework for delightful GraphQL developer portals

import { Arr } from '@wollybeard/kit';
import * as DataSources from './data-sources/data-sources.js';
export const readOrThrow = async (config) => {
    if (config.enabled === false) {
        return null;
    }
    const useDataSources = config.useDataSources ? Arr.sure(config.useDataSources) : null;
    const usingDataSource = (dataSource) => useDataSources === null || useDataSources.includes(dataSource);
    if (usingDataSource(`data`) && config.dataSources?.data) {
        return config.dataSources.data;
    }
    if (usingDataSource(`directory`)) {
        const directoryConfig = {
            projectRoot: config.projectRoot,
            ...config.dataSources?.directory,
        };
        const result = await DataSources.SchemaDirectory.readOrThrow(directoryConfig);
        if (result)
            return result;
    }
    if (usingDataSource(`file`)) {
        const fileConfig = {
            projectRoot: config.projectRoot,
            ...config.dataSources?.file,
        };
        const result = await DataSources.SchemaFile.readOrThrow(fileConfig);
        if (result)
            return result;
    }
    if (usingDataSource(`memory`) && config.dataSources?.memory) {
        const memoryConfig = {
            projectRoot: config.projectRoot,
            ...config.dataSources.memory,
        };
        const result = await DataSources.Memory.read(memoryConfig);
        if (result)
            return result;
    }
    return null;
};
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