How to Use the Canada Post Postal Code API

Canada Post APIs are available in multiple languages. To use this API, you must use the HTTP GET method. The body of the request is not XML; instead, it contains a query string. The link element of the response consists of a URL and may also contain a query string. The format attribute indicates the data format and version, which must be copied into the HTTP header variable "Accept".

To use the Canada Post postal code API, you should first make sure that the address you are trying to fetch is valid. If the address you have is incorrect, you can use the address validation method. This method compares the address you're trying to query against an authoritative database. This database is likely to be populated by Canada Post, since it includes complete addresses of addresses currently receiving mail.

Canada Post supports rates, and you can use a rate from this data to calculate the price of any Canada Post service. You should use the NODE_ENV environment variable to determine whether you are authenticating against development or production servers. In addition, you should ensure that you have entered the correct postcode in your store's address settings. If the postcode matches, then it is valid. If not, you should use the contract rate option.

Canadian postal codes are organized by forward sortation areas. The first part of the postal code identifies a region. For example, postal code M4B covers 600 geographical areas in Toronto.