Why this build, here
“2 bags mealie meal 25kg deliver chilenje tmrw” is how orders arrive. Businesses retype them into invoices by hand, and since ZRA Smart Invoice every sale needs clean line items. Structured output is how a model hands data to code instead of to a person.
The build, step by step
Collect twenty real-looking orders
Define the schema first
Ask the model for JSON, then check it
Ask instead of guessing
Score it on your twenty orders
The steps, checks and practice open with a code
You can see what this lesson builds. The detail of each step, the finished-when checks and interview scoring come with the K850 practice, along with weekly build sessions and code review.
Read and run
Interview practice
Questions on this topic from AI Engineering Interview Questions, company-wise, with the companies it lists. Write your answer the way you would say it; Jev scores it and DeepSeek tells you what to add.
Scoring opens with an access code. You can still read the questions and prepare.