.. index:: single: json_schema_protocol .. _json_schema_protocol/0:

.. rst-class:: right

protocol

json_schema_protocol

JSON Schema parser and validator protocol.

| Availability: | logtalk_load(json_schema(loader))

| Author: Paulo Moura | Version: 1:0:1 | Date: 2026-06-14

| Compilation flags: | static

| Dependencies: | (none)

| Remarks: | (none)

| Inherited public predicates: | (none)

.. contents:: :local: :backlinks: top

Public predicates

.. index:: parse/2 .. _json_schema_protocol/0::parse/2:

parse/2 ^^^^^^^^^^^

Parses a JSON schema from the given source (file(Path), stream(Stream), codes(List), chars(List), or atom(Atom)) into a schema term.

| Compilation flags: | static

| Template: | parse(Source,Schema) | Mode and number of proofs: | parse(++compound,--term) - one_or_error

| Exceptions: | Source is a variable: | instantiation_error | Source is neither a variable nor a valid JSON source term or does not contain parsable JSON: | domain_error(json_source,Source) | The parsed JSON value is not a valid JSON Schema term: | domain_error(json_schema,Schema)

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.. index:: validate/2 .. _json_schema_protocol/0::validate/2:

validate/2 ^^^^^^^^^^^^^^

Validates a JSON term against a parsed schema. Succeeds if the JSON term is valid according to the schema.

| Compilation flags: | static

| Template: | validate(Schema,JSON) | Mode and number of proofs: | validate(+term,+term) - zero_or_one

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.. index:: validate/3 .. _json_schema_protocol/0::validate/3:

validate/3 ^^^^^^^^^^^^^^

Validates a JSON term against a parsed schema. Returns a list of validation errors (empty list if valid).

| Compilation flags: | static

| Template: | validate(Schema,JSON,Errors) | Mode and number of proofs: | validate(+term,+term,--list) - one

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Protected predicates

(none)

Private predicates

(none)

Operators

(none)