//service and docs

https://qr.livingtech.ch

​

// Configuration

let myConfiguration  = { 

    "Account" : "CH4431999123000889012",

    "CreditorName" : "Muster AG",

    "CreditorAddress1" : "Hauptstrasse 1",

    "CreditorAddress2" : "8000 Zürich",

    "CreditorCountryCode" : "CH",

    "DebtorName" : "LivingTech GmbH",

    "DebtorAddress1" : "Dörflistrasse 10",

    "DebtorAddress2" : "8057 Zürich",

    "DebtorCountryCode" : "CH",

    "Amount" : "1.50",

    "ReferenceNr" : "21000000000313947143000901",

    "UnstructuredMessage" : "Mitteilung zur Rechnung",

    "Currency" : "CHF",

    "IsQrOnly" : "false",

    "Format" : "PDF",

    "Language" : "DE"

}

​

// Call function to create invoice

let myFile = generateQrInvoice(myConfiguration);

​

// Work with binary data

if(myFile != null) {

    // ...

}

​

function generateQrInvoice(myRequestConfiguration) {

    // Main configuration

    let myEndpointUrl = "http://qrbillservice.livingtech.ch";

    let myEndpointPath = "/api/qrinvoice/create/";

    let myApiKey = "mySecretApiKey";

​

    // GET parameters

    let myGetParams = new URLSearchParams(myRequestConfiguration);

​

    // Perform request

    fetch(myEndpointUrl + myEndpointPath + "?" + myGetParams, {

        method: "GET", 

        mode: "cors", 

        cache: "no-cache", 

        headers: {

            "APIKEY": myApiKey, 

            "Accept": "application/json"

        }

    }).then(function (myResponse) {

        try {

            // Check status

            if(myResponse.status == 200) {

                // Read and parse JSON

                let myJsonObject  = JSON.parse(myResponse);

​

                // Check if error

                if(myJsonObject["isSuccessed"] == "true") {

                    if("base64Image" in myJsonObject && myJsonObject["base64Image"].trim() != "") {

                        // E.g. send file to client

                        let myBlob = new Blob(atob(myJsonObject["base64Image"]), {type: "application/pdf"});

                        let myBlobUrl = URL.createObjectURL(myBlob);

                        window.open(myBlobUrl);

​

                        // Return data

                        return atob(myJsonObject["base64Image"]);

                    } else {

                        throw "no data provided";

                    }

                } else {

                    throw myJsonObject["Message"];

                }

            } else {

                throw "status code " . myResponse.status;

            }

        }

        catch(e) {

            // Handle exception

            console.warn("Error: " + e.message, e);

            return null;

        }

    }).catch(function (err) {

        // Handle exception

        console.warn("Error: " + err.message, err);

        return null;

    });

}