feat: Enhance dynamic endpoint creation with union schema handling #5
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I'll do some refacs here but is this PR tested? |
It’s tested, confirmed that this supports union schemas and standard schemas. There aren’t a lot of MCPs utilizing unions but the custom MCP I am using does use union schemas and the output of that schema I provided in the PR message. Zod’s union methods: https://zod.dev/?id=unions |
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Came across an issue where schema wouldn't translate property in a custom MCP I built using unions and discriminator patterns using the example schema below. Introduces some run-time validation based on the union schema.
{ "anyOf": [ { "type": "object", "properties": { "operation": { "type": "string", "const": "getById", "description": "Get a page by its ID" }, "useCache": { "type": "boolean", "default": true, "description": "Whether to prioritize cached data" }, "id": { "type": "string", "description": "Page ID to retrieve" }, "select": { "anyOf": [ { "type": "string", "description": "Comma-separated list of field names to include in the response" }, { "type": "array", "items": { "type": "string", "description": "Field name to include in the response" }, "description": "Array of field names to include in the response" } ], "description": "Fields to include in the response" }, "depth": { "type": "number", "minimum": 0, "maximum": 10, "description": "Number (0-10) for relationship population depth" } }, "required": [ "operation", "id" ], "additionalProperties": false, "description": "Get a single page by its ID" }, { "type": "object", "properties": { "operation": { "type": "string", "const": "list", "description": "List pages with optional filtering and pagination" }, "useCache": { "type": "boolean", "default": true, "description": "Whether to prioritize cached data" }, "filters": { "anyOf": [ { "type": "object", "properties": { "where": { "description": "Object of filter conditions with comparison operators" }, "sort": { "anyOf": [ { "type": "string", "description": "Field to sort by (prefix with - for descending)" }, { "type": "array", "items": { "type": "string", "description": "Field to sort by (prefix with - for descending)" }, "description": "Array of fields to sort by" } ], "description": "String or Array for sorting (prefix with - for descending)" }, "limit": { "type": "number", "description": "Number of items per page" }, "page": { "type": "number", "description": "Page number for pagination" }, "depth": { "type": "number", "minimum": 0, "maximum": 10, "description": "Number (0-10) for relationship population depth" }, "select": { "$ref": "#/anyOf/0/properties/select", "description": "Fields to include in the response" }, "published": { "type": "boolean", "description": "Filter to only published pages (shorthand for where._status=published)" }, "withBlockType": { "type": "string", "description": "Filter to pages containing a specific block type" } }, "additionalProperties": false, "description": "Advanced filters for list/count operations (object format)" }, { "type": "string", "description": "JSON string of filters - WARNING: Always prefer to send an object directly rather than a string" } ], "description": "Optional filters for the list operation" } }, "required": [ "operation" ], "additionalProperties": false, "description": "List pages with optional filtering and pagination" }, { "type": "object", "properties": { "operation": { "type": "string", "const": "count", "description": "Count pages matching criteria" }, "useCache": { "type": "boolean", "default": true, "description": "Whether to prioritize cached data" }, "filters": { "$ref": "#/anyOf/1/properties/filters", "description": "Optional filters for the count operation" } }, "required": [ "operation" ], "additionalProperties": false, "description": "Count pages matching criteria" }, { "type": "object", "properties": { "operation": { "type": "string", "const": "getFields", "description": "\ud83d\udd11 REQUIRED FIRST STEP: Get field definitions AND verification key for pages collection. You MUST call this before any create/update operations." }, "useCache": { "type": "boolean", "default": true, "description": "Whether to prioritize cached data" } }, "required": [ "operation" ], "additionalProperties": false, "description": "\ud83d\udd11 REQUIRED FIRST STEP: Get field definitions AND verification key needed for page operations" }, { "type": "object", "properties": { "operation": { "type": "string", "const": "getBlockFields", "description": "\ud83d\udd11 REQUIRED STEP: Get field definitions AND verification key for a specific block type. You MUST call this for EACH block type you plan to use." }, "useCache": { "type": "boolean", "default": true, "description": "Whether to prioritize cached data" }, "blockType": { "type": "string", "description": "Block type to get fields and verification key for (e.g., 'content', 'hero', etc.)" } }, "required": [ "operation", "blockType" ], "additionalProperties": false, "description": "\ud83d\udd11 REQUIRED STEP: Get field definitions AND verification key needed for block operations" }, { "type": "object", "properties": { "operation": { "type": "string", "const": "getBlocksByType", "description": "Get blocks of a specific type from a page" }, "useCache": { "type": "boolean", "default": true, "description": "Whether to prioritize cached data" }, "id": { "type": "string", "description": "Page ID to search blocks in" }, "blockType": { "type": "string", "description": "Block type to find" } }, "required": [ "operation", "id", "blockType" ], "additionalProperties": false, "description": "Get blocks of a specific type from a page" } ], "description": "Parameters", "$schema": "http://json-schema.org/draft-07/schema#", "title": "schema#", "type": "object", "properties": {} }