Skip to content

Instantly share code, notes, and snippets.

Embed
What would you like to do?
Add Paystack fees in Javascript
function PaystackFee() {
this.DEFAULT_PERCENTAGE = 0.015;
this.DEFAULT_ADDITIONAL_CHARGE = 10000;
this.DEFAULT_THRESHOLD = 250000;
this.DEFAULT_CAP = 200000;
this.percentage = this.DEFAULT_PERCENTAGE;
this.additional_charge = this.DEFAULT_ADDITIONAL_CHARGE;
this.threshold = this.DEFAULT_THRESHOLD;
this.cap = this.DEFAULT_CAP;
this.chargeDivider = 0;
this.crossover = 0;
this.flatlinePlusCharge = 0;
this.flatline = 0;
this.withPercentage = function (percentage) {
this.percentage = percentage;
return this.__setup();
};
this.withAdditionalCharge = function (additional_charge) {
this.additional_charge = additional_charge;
return this.__setup();
};
this.withThreshold = function (threshold) {
this.threshold = threshold;
return this.__setup();
};
this.withCap = function (cap) {
this.cap = cap;
return this.__setup();
};
this.__setup = function () {
this.chargeDivider = this.__chargeDivider();
this.crossover = this.__crossover();
this.flatlinePlusCharge = this.__flatlinePlusCharge();
this.flatline = this.__flatline();
return this;
};
this.__chargeDivider = function () {
return 1 - this.percentage;
};
this.__crossover = function () {
return (this.threshold * this.chargeDivider) - this.additional_charge;
};
this.__flatlinePlusCharge = function () {
return (this.cap - this.additional_charge) / this.percentage;
};
this.__flatline = function () {
return this.flatlinePlusCharge - this.cap;
};
this.addFor = function (amountinkobo) {
if (amountinkobo > this.flatline)
return parseInt(Math.round(amountinkobo + this.cap));
else if (amountinkobo > this.crossover)
return parseInt(Math.ceil((amountinkobo + this.additional_charge) / this.chargeDivider));
else
return parseInt(Math.ceil(amountinkobo / this.chargeDivider));
};
this.__setup = function () {
this.chargeDivider = this.__chargeDivider();
this.crossover = this.__crossover();
this.flatlinePlusCharge = this.__flatlinePlusCharge();
this.flatline = this.__flatline();
};
this.__setup();
}
var obj = new PaystackFee();
console.log( obj.addFor(9850));
// to add foreign payment costs...
obj.withAdditionalCharge(10000)
.withThreshold(250000)
.withCap(10000000000000)
.withPercentage(0.039);
console.log(obj.addFor(530000));
console.log(obj.addFor(975000));
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
You can’t perform that action at this time.