I am building a picture framing REST API calculator using Node JS. The code I've written for it is this:
app.post("/api/calculator/singlematapi", (req,res) => {
let FrameWidth = 1 * req.body.FrameWidth.split("/").reduce((a, b) => a / b);
let FrameWidthFraction = 1 * req.body.FrameWidthFraction.split("/").reduce((a, b) => a / b);
let FrameHeight = 1 * req.body.FrameHeight.split("/").reduce((a, b) => a / b);
let FrameHeightFraction = 1 * req.body.FrameHeightFraction.split("/").reduce((a, b) => a / b);
let PictureWidth = 1 * req.body.PictureWidth.split("/").reduce((a, b) => a / b);
let PictureWidthFraction = 1 * req.body.PictureWidthFraction.split("/").reduce((a, b) => a / b);
let PictureHeight = 1 * req.body.PictureHeight.split("/").reduce((a, b) => a / b);
let PictureHeightFraction = 1 * req.body.PictureHeightFraction.split("/").reduce((a, b) => a / b);
let MatOverlap = 1 * req.body.MatOverlap.split("/").reduce((a, b) => a / b);
let MatOverlapFraction = 1 * req.body.MatOverlapFraction.split("/").reduce((a, b) => a / b);
let width = (1/2)*((FrameHeight+FrameHeightFraction)-(PictureHeight+PictureHeightFraction)+(MatOverlap+MatOverlapFraction));
let height = (1/2)*((FrameWidth+FrameWidthFraction)-(PictureWidth+PictureWidthFraction)+(MatOverlap+MatOverlapFraction));
res.send(`Width Cut = ${new Fraction(height).toString()}", Height Cut = ${new Fraction(width).toString()}"`);
});
Therefore, the input JSON POST request would be, for example:
{
"FrameWidth": "16",
"FrameWidthFraction": "1/2",
"FrameHeight": "20",
"FrameHeightFraction": "0",
"PictureWidth": "11",
"PictureWidthFraction": "0",
"PictureHeight": "17",
"PictureHeightFraction": "0",
"MatOverlap": "0",
"MatOverlapFraction": "1/2"
}
The response would be: Width Cut = 3", Height Cut = 1 3/4"
The problem I'm running into is that I can't seem to figure out how to allow for mixed numbers in my key/value pairs of my object.
I currently have to have a separate key/value pair for the integer, and a separate pair for the fraction as shown above, for example:
{
"FrameWidth": "16",
"FrameWidthFraction": "1/2"
}
My goal is to reduce the number of key/value pairs by allowing mixed numbers as an input like this:
{
"FrameWidth": "16 1/2"
}
The piece of code in question:
let FrameWidth = 1 * req.body.FrameWidth.split("/").reduce((a, b) => a / b);
let FrameWidthFraction = 1 * req.body.FrameWidthFraction.split("/").reduce((a, b) => a / b);
...only allows for individual integers or individual fractions, but not a combined mixed number.
Can mixed number inputs in JSON be converted to numbers using split() and reduce() in Node JS with the code I'm using?
