SRO

📦🔍 Friendly Correios SRO API wrapper and command-line utility.

• Validate tracking numbers and their check digits
• Batch API requests whenever possible
• Strip empty or whitespace-only fields
• Create proper ISO date strings from events
• Handle crazy server responses, like unclosed XML tags
• Provide command-line utility with human-readable output

Installation

npm install sro

Usage

import { track } from 'sro'
const [items, failures] = await track('TE123456789BR')

If installed globally using the npm -g flag, SRO can also be invoked from the command-line:

$ sro
Usage: sro [options] <numbers...>
Options:
  -V, --version          output the version number
  -o, --output <format>  specify the output format (table|json|pretty) [table] (default: "table")
  -c, --check            check tracking number check digit (default: false)
  -h, --help             display help for command

API

track(numbers, options?): Promise<[items, failures]>

Tracks a collection of tracking numbers.

Arguments

• numbers (String|Array) - Tracking number or array of tracking numbers to be tracked.
• options (Object) - Optional tracking options:
  • checkDigit (Boolean) - Whether to validate the tracking number check digit
  • onProgress(progress, item) (Function) - Callback function called for each number once its data has been retrieved. progress is a float number between 0 and 1. item is the item object. Invalid tracking numbers are filtered before any requests are made, so they will not be passed here.

Return

[items, failures] (Array)

• items (Array) - Item objects.
• failures (Array) - Objects containing the tracking numbers that did not pass validation.

validate(number, options?): [passes, failures]

Validates a collection of tracking numbers.

Arguments

• numbers (String|Array) - Tracking number or array of tracking numbers to be validated
• options (Object) - Optional tracking options:
  • checkDigit (Boolean) - Whether to validate the tracking number check digit

Return

[passes, failures] (Array)

• passes (Array) - Objects containing the tracking numbers that passed validation.
• failures (Array) - Objects containing the tracking numbers that did not pass validation.