Sending an operation

send-op.java

// Read block 1 of sector 1 of the virtual MIFARE card
public int readBlock(String sessionId, HashMap<String, String> pendingOperations) {
    String url = "https://api.fidesmo.com/mifare/read";
    String callbackUrl = Constants.rootUrl + Constants.readBlockCallbackUrl;

    // Encode the JSON structure with the trailer data for one sector
    JSONObject payload = new JSONObject();
    JSONArray blockData = new JSONArray();
    blockData.add(Utils.encodeBlockToRead(1, 1));
    payload.put("blocks", blockData);

    return sendOperationAndProcessResponse(url, callbackUrl, payload, sessionId, pendingOperations);
}