graphql-yoga/cjs/plugins/use-config-in-server-context.js

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.useConfigInServerContext = useConfigInServerContext;
/**
 * Injects the {@link YogaConfigContext} (most notably the `log`ger) into the server context,
 * making it available to every plugin, hook and resolver handling the request.
 */
function useConfigInServerContext({ configContext }) {
    const keys = Object.keys(configContext);
    const configInServerContextPlugin = {
        onRequest({ serverContext }) {
            // we want to inject the YogaConfigContext to the server context to
            // have it available always through the plugin system
            for (const key of keys) {
                // `defineProperty` instead of a plain assignment because some integrations (e.g. Egg)
                // pass their own request context object through as the server context, and it may have
                // a getter-only accessor of the same name on its prototype which an assignment throws on
                Object.defineProperty(serverContext, key, {
                    value: configContext[key],
                    writable: true,
                    enumerable: true,
                    configurable: true,
                });
            }
        },
    };
    return {
        onEnveloped({ context, extendContext }) {
            // contexts built by hand (e.g. for graphql-ws) never went through `onRequest`
            if (context && !context.log) {
                extendContext(configContext);
            }
        },
        onPluginInit({ plugins }) {
            if (!plugins.includes(configInServerContextPlugin)) {
                // we unshift because we want this plugin to run first before all other
                // this is because some routes, like graphiql, readiness and healtcheck
                // use onRequest's endResponse to short-circuit the request and therefore
                // not running this plugin at all
                plugins.unshift(configInServerContextPlugin);
            }
        },
    };
}