@graphql-mesh/handler-federation/index.cjs.js

'use strict';

const gateway = require('@apollo/gateway');
const graphql = require('graphql');
const graphqlTools = require('graphql-tools');
const fetchache = require('fetchache');

const handler = {
    async getMeshSource({ config, hooks, cache }) {
        const gateway$1 = new gateway.ApolloGateway({
            fetcher: (info, init) => fetchache.fetchache(typeof info === 'string' ? new fetchache.Request(info, init) : info, cache),
            ...config,
        });
        const { schema, executor } = await gateway$1.load();
        const fetcher = ({ query, operationName, variables, context }) => executor({
            document: query,
            request: {
                query: graphql.print(query),
                variables,
            },
            operationName,
            cache,
            context,
            queryHash: graphql.print(query) + '_' + JSON.stringify(variables),
            logger: console,
            metrics: {},
            source: graphql.print(query),
            operation: query.definitions.find(definition => { var _a; return definition.kind === graphql.Kind.OPERATION_DEFINITION && ((_a = definition.name) === null || _a === void 0 ? void 0 : _a.value) === operationName; }),
        });
        const remoteSchemaOptions = {
            schema,
            fetcher,
        };
        const remoteSchema = graphqlTools.makeRemoteExecutableSchema(remoteSchemaOptions);
        hooks.on('buildSdkFn', ({ fieldName, replaceFn, schema }) => {
            replaceFn((args, context, info) => {
                const delegationOptions = {
                    operation: info.operation.operation,
                    fieldName,
                    schema,
                    args,
                    info,
                    context,
                };
                return graphqlTools.delegateToSchema(delegationOptions);
            });
        });
        hooks.on('destroy', () => gateway$1.stop());
        return {
            schema: remoteSchema,
        };
    },
};

module.exports = handler;
//# sourceMappingURL=index.cjs.js.map