chore(parser): Numeric is now unconstrained, now truncating numbers after the dot is done in the backend

Author: Redume

parser/main.js

@@ -14,6 +14,19 @@ const servicesDir = path.join(__dirname, 'services');
 let fiatFetched = false;
 let cryptoFetched = false;
 
+function truncate_number(value, decimals) {
+    const valueStr = value.toString();
+    const dotIndex = valueStr.indexOf('.');
+    if (dotIndex === -1) return valueStr;
+    const desiredLength = dotIndex + decimals + 1;
+    let truncated = valueStr.slice(0, desiredLength);
+
+    if (parseFloat(truncated) === 0 && value > 0) {
+        return valueStr;
+    }
+    return truncated;
+}
+
 async function main() {
     if (!config['schedule'])
         throw new Error('The crontab schedule is not set.');
@@ -76,7 +89,7 @@ async function main() {
                             [
                                 currency.from_currency,
                                 currency.conv_currency,
-                                currency.rate,
+                                truncate_number(currency.rate, 30),
                                 currency.date,
                             ],
                         );

parser/models/Currency.js

@@ -17,7 +17,7 @@ const currencySchema = Joi.object({
         'date.base': 'date must be a valid ISO date',
         'any.required': 'date is required',
     }),
-    rate: Joi.number().precision(30).positive().required().messages({
+    rate: Joi.number().positive().required().messages({
         'number.base': 'rate must be a number',
         'number.positive': 'rate must be a positive number',
         'number.precision': 'rate must have no more than 6 decimal places',

schemas/data.sql

@@ -1,7 +1,7 @@
 CREATE TABLE IF NOT EXISTS currency(
     from_currency TEXT NOT NULL,
     conv_currency TEXT NOT NULL,
-    rate NUMERIC(30) NOT NULL,
+    rate NUMERIC NOT NULL,
     date DATE NOT NULL
 );