@sap/xsodata/lib/serializer/jsonSerializer.js

Expose data from a HANA database as OData V2 service with help of .xsodata files.

'use strict';

const configuration = require('./../configuration');

exports.JsonSerializer = JsonSerializer;

function JsonSerializer(context, bufferSize, code) {
    const self = this;

    self.context = context;
    self.request = context.request;
    self.response = context.response;
    self.bufferSize = bufferSize;
    self.buffer = '';
    code = code || 200;

    const header = {
        'Content-Type': context.payloadType + ';charset=utf-8',
    };

    if (context.gModel) {
        const cacheControl = context.gModel.getSetting(
            'content',
            'cache-control'
        );
        if (cacheControl) {
            header['cache-control'] = cacheControl;
        }
    }
    self.response.writeHead(code, header);
}

JsonSerializer.prototype.write = function (data) {
    if (this.context.mode === configuration.modes.development) {
        this.buffer += JSON.stringify(data, null, 4);
    } else {
        this.buffer += JSON.stringify(data, null, 0);
    }
};

JsonSerializer.prototype.flush = function () {
    this.response.write(this.buffer);
};