JSON Extract API
Return structured objects whose types, nulls, and relationships match a documented contract.

A focused use case
Deliver a product record containing variants and evidence references to an application that needs nested relationships rather than a flat table.
A practical workflow
Define the envelope and business record separately. Validate syntax, structure, semantic rules, and source support in sequence. Record schema changes explicitly and test the consumer’s handling of missing values.
An example record contract
These fields illustrate the decisions to make before implementation. Adapt the names and required values to the receiving system; the table is not a promise of a live endpoint or a provider-specific response.
| Example field | Meaning in this contract |
|---|---|
| schema_revision | Contract version |
| record_id | Stable identity |
| record | Typed fields and relationships |
| issues | Explicit uncertainty |
Limits worth keeping visible
Valid JSON is not proof of a correct extraction. Avoid duplicated object member names, numeric identifiers with precision risk, and undocumented date conventions.
Before increasing the workload
Run a small, authorized test set through the whole path, including the receiving application. Keep accepted, rejected, and incomplete outcomes distinguishable. A result should retain the context needed to explain its meaning after it leaves the extractor.
Continue with JSON Extract API: Validate More Than the Syntax for the full implementation discussion, and use the sample contract documentation to review the shape of a handoff.
Consult the source documentation for implementation details and current access conditions. The workflow above is an editorial planning pattern.
Connected topics.
CSV Extract API
Deliver flat rows with stable columns, explicit quoting, and predictable import behavior.
Explore the workflowEmail Extract API
Parse permissioned messages into purpose-limited records, not an indiscriminate contact list.
Explore the workflowSpreadsheet Extract API
Turn a selected worksheet range into records without losing cell meaning.
Explore the workflow