trader-server/node_modules/odata-v4-service-document/src/serviceDocument.ts

OData server for testing strategies, simulating and real trading.

import { Edm } from 'odata-v4-metadata'
import { ServiceMetadata } from 'odata-v4-service-metadata'
import { JsonDocument } from './JsonDocument'
import { Request, Response, RequestHandler } from 'express';

export class ServiceDocument extends ServiceMetadata {
    constructor(edmx: Edm.Edmx, options?: Object) {
        super(edmx, options);
    }

    document(format?: string) {
        switch (format) {
            case 'xml':
                throw new Error('Not implemented');
            default: return this.data;
        }
    }

    process(edmx: Edm.Edmx, options?: Object) {
        var jsonDocument = new JsonDocument(options, edmx);
        this.data = jsonDocument.processMetadata();
    }

    requestHandler(format?: string) {
        return (req: Request, res: Response, next: RequestHandler) => {
            res.set('OData-Version', '4.0');
            
            var data = this.document(format)
            if (!data['@odata.context']) {
                var url = req.protocol + '://' + req.get('host') + req.originalUrl.split("?").shift();
                if(url.slice(-1) !== '/') url += '/'
                data['@odata.context'] = url + '$metadata';
            }
            
            res.json(data);
        };
    }
}