Reedme

The idgen is an API to generate Ids with the following characteristics:

• Short: currently fixed at 6 characters
• Alphanumeric: IDs contain both uppercase and lowercase letters, and digits
• Unique: each Id is guaranteed to be unique
• Random sequence

Preview

Try it live at: https://id.aslanta.com.

Request:

GET https://id.aslanta.com

Response:

{
    "id": "P5jtoa"
}

Feel free to use it in your demo apps, prototypes, or internal tools. There is limit of 200 requests per minute, reach out if you need more 🚀

How it works

The idgen has two main components. A cronjob generating the short Ids and storing them in a PostgreSQL database, and a web API loading the Ids.

The database has two tables: ShortIdsHistory to guaranteed global unicity, and ShortIds with the unique Ids available to be consumed from the API.

The cronjob adds the new Ids to both tables. And then the API reads the Ids from ShortIds in small batches cached in memory. The Ids are deleted right after they are loaded in memory to guarantee that they cannot be retrieved again.