confluent-schema-registry-node/confluent-schema-registry-node.js

Confluent Schema Registry API Node.js Client

const http = require('http');
const querystring = require('querystring');

// Get Global Schema Registry Compatibility Level
function getGlobalCompatibilityLevel() {

    var options = {
        host: "localhost",
        port: 8081,
        path: "/config",
        headers: {
            accept: "application/vnd.schemaregistry.v1+json, application/vnd.schemaregistry+json, application/json"
        }
    };

    http.get(options, function(res) {

        const statusCode = res.statusCode;
        const contentType = res.headers['content-type'];

        let error;
        if(statusCode !== 200) {
            error = new Error(`Request Failed.\n` +
                               `Status Code: ${statusCode}`);
        } else if(!/^application\/vnd.schemaregistry.v1\+json/.test(contentType)) {
            error = new Error(`Invalid content-type.\n` + 
                              `Expected application/vnd.schemaregistry.v1+json but received ${contentType}`);
        }

        if(error) {
            console.log(error.message);
            //consume response data to free up memory.
            res.resume();
            return;
        }

        res.setEncoding('utf8');
        let rawData = '';
        res.on('data', (chunk) => rawData += chunk);
        res.on('end', () => {
            try {
                let parsedData = JSON.parse(rawData);
                console.log(parsedData);
            } catch (e) {
                console.log(e.message);
            }
        });

    }).on('error', (e) => {
        console.log(`Got error: ${e.message}`);
    });
}

function updateGlobalCompatibilityLevel(putData) {
    var options = {
        host: "localhost",
        port: 8081,
        path: "/config",
        method: "PUT",
        headers: {
            "accept": "application/vnd.schemaregistry.v1+json, application/vnd.schemaregistry+json, application/json"
        }
    };

    var req = http.request(options, (res) => {
        console.log(`STATUS: ${res.statusCode}`);
        console.log(`HEADERS: ${JSON.stringify(res.headers)}`);
        res.setEncoding('utf8');
        res.on('data', (chunk) => {
            console.log(`BODY: ${chunk}`);
        });
        res.on('end', () => {
            console.log('No more data in response.');
        });
    });

    req.on('error', (e) => {
        console.log(`problem with request: ${e.message}`);
    });

    // write data to request body
    req.write(JSON.stringify(putData));
    req.end();
}


module.exports.updateGlobalCompatibilityLevel = updateGlobalCompatibilityLevel;
module.exports.getGlobalCompatibilityLevel = getGlobalCompatibilityLevel;