graphql-anywhere-mongodb-express/dist/src/middlewares/mongo-graphql-middleware.js

express middleware that accepts graphql requests and runs them as mongo queries

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
const tslib_1 = require("tslib");
const handle_async_1 = require("../handle-async");
const parser_1 = require("graphql/language/parser");
const log_1 = require("../log");
function mongoGraphQLMiddleware() {
    return handle_async_1.handleAsync((req, res) => tslib_1.__awaiter(this, void 0, void 0, function* () {
        // Get client off request
        const client = req['__mongoGraphQLClient'];
        try {
            // Extract query and variables from body
            const { query, variables } = req.body;
            log_1.log(`GQL Request   :`, query);
            log_1.log(`GQL Variables :`, variables);
            // Convert raw graphql query to GraphQL AST
            const processedQuery = parser_1.parse(query);
            // Execute it and return a result
            const result = yield client.find(processedQuery, variables);
            res.json(result);
        }
        catch (err) {
            log_1.log(`Error processing graphql request`, err);
            res.json({
                data: null,
                errors: [
                    {
                        message: err.message || err
                    }
                ]
            });
        }
    }));
}
exports.mongoGraphQLMiddleware = mongoGraphQLMiddleware;
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