To apply at the Laos Embassy, you will first need to get the official form. Print it and fill in the different sections, making sure to check the accuracy of the information you write. You will need to attach a recent passport photo. In France, the cost of this visa is 35 € while it will cost you 40 € in Belgium.
The procedure for electronic travel authorization is the same as for a traditional visa. You will need to go to the official e-visa application site for Laos. You will then have to fill in the official form, pay the fees with a credit card and you will finally receive your application number by email so that you can track its status.