Transmission of sensor data from arduino uno via esp8266

Hi,
i am a newbie. i have to do this project where the temperature readings from LM35 temperature sensor are to be collected in arduino uno and sent to labview via wifi, using wifi module esp8266.

How do i use the module as a wifi transmitter? can someone suggest me a code?

What model of esp8266? If it is an esp-01, then connecting it to an Uno is going to be a pain. They run on different voltages (3.3V and 5V) so logic level converters are needed.

Do you have to use esp-01? Do you have to use LM35? What other components do you have available, and can you buy more suitable components to complete the project?