Display one colour option on Shopify product page - colors

Question

I'm trying to display only one colour variant of my product at any time when one is selected.
I can get it to work when I manually assign an image to each of the product colours, but when I upload a new .CSV, this is overwritten. Since there are going to be hundreds of products on this store, this isn't a viable solution.
Any help would be greatly appreciated. Thank you.
Link to .CSV
https://docs.google.com/spreadsheets/d/1trq0X3MjR-n2THFnT8gYYlwKscnQavCeeZ8L-ifYaHw/edit?usp=sharing
Link to Product page
https://tomgarrad.myshopify.com/products/lightweight-trainers?variant=37878137356461

Answer 1

Use the Shopify API instead of uploading from a spreadsheet. It allows you to do a lot of things, the following code would upload a product:
POST /admin/api/2021-01/products.json
{
"product": {
"title": "Lightweight Trainers",
"body_html": "<strong>Great trainers!</strong>", #Description
"vendor": "Tom", #The name of the products vendor
"product_type": "Trainer",
"variants": [
{
"option1": "Blue",
"price": "10.00",
"sku": "123" #code
},
{
"option2": "Red",
"price": "10.00",
"sku": "123"
}
],
"images": [
{
"attachment": "R0lGODlhAQABAIAAAAAAAAAAACH5BAEAAAAALAAAAAABAAEAAAICRAEAOw==\n"
}
]
}
}
The image attachment is base64 encoded so keep that in mind when uploading images. Shopify has a very detailed documentation of their API and it's easy to setup. Hopefully this will work for you.