Cannot get quantity after performing a request compression

[shenxxu720]

After I perform compression (tinify.fromFile()), the value of tinify.compressionCount is undefined. Can I get the quantity only in the callback of tinify.validate()?

[PabloPerezDeCiriza]

Hi shenxxu720,

The issue you are finding is because tinify.fromFile() is an asyncronous operation. The output is undefined because tinify.compressionCount is being executed before tinify.fromFile() is completed. You can try something like this:

const tinify = require("tinify");
tinify.key = "YOUR_API_KEY";

tinify.fromFile("panda.png").toFile("panda_compressed.png").then(() => {
    console.log("Compression count:", tinify.compressionCount);
});