{ "cells": [ { "cell_type": "markdown", "metadata": {}, "source": [ "# jsonschema\n", "---" ] }, { "cell_type": "markdown", "metadata": {}, "source": [ "`jsonschema` is an implementation of [JSON Schema](https://json-schema.org) for Python (supporting 2.7+ including Python 3)." ] }, { "cell_type": "markdown", "metadata": {}, "source": [ "## Usage" ] }, { "cell_type": "code", "execution_count": null, "metadata": {}, "outputs": [], "source": [ "from jsonschema import validate" ] }, { "cell_type": "code", "execution_count": null, "metadata": {}, "outputs": [], "source": [ "# A sample schema, like what we'd get from json.load()\n", "schema = {\n", " \"type\" : \"object\",\n", " \"properties\" : {\n", " \"price\" : {\"type\" : \"number\"},\n", " \"name\" : {\"type\" : \"string\"},\n", " },\n", "}" ] }, { "cell_type": "code", "execution_count": null, "metadata": {}, "outputs": [], "source": [ "# If no exception is raised by validate(), the instance is valid.\n", "validate(instance={\"name\" : \"Eggs\", \"price\" : 34.99}, schema=schema)" ] }, { "cell_type": "code", "execution_count": null, "metadata": {}, "outputs": [ { "ename": "ValidationError", "evalue": "'Invalid' is not of type 'number'\n\nFailed validating 'type' in schema['properties']['price']:\n {'type': 'number'}\n\nOn instance['price']:\n 'Invalid'", "output_type": "error", "traceback": [ "\u001b[0;31m---------------------------------------------------------------------------\u001b[0m", "\u001b[0;31mValidationError\u001b[0m Traceback (most recent call last)", "\u001b[0;32m\u001b[0m in \u001b[0;36m\u001b[0;34m\u001b[0m\n\u001b[1;32m 1\u001b[0m validate(\n\u001b[1;32m 2\u001b[0m \u001b[0minstance\u001b[0m\u001b[0;34m=\u001b[0m\u001b[0;34m{\u001b[0m\u001b[0;34m\"name\"\u001b[0m \u001b[0;34m:\u001b[0m \u001b[0;34m\"Eggs\"\u001b[0m\u001b[0;34m,\u001b[0m \u001b[0;34m\"price\"\u001b[0m \u001b[0;34m:\u001b[0m \u001b[0;34m\"Invalid\"\u001b[0m\u001b[0;34m}\u001b[0m\u001b[0;34m,\u001b[0m\u001b[0;34m\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[0;32m----> 3\u001b[0;31m \u001b[0mschema\u001b[0m\u001b[0;34m=\u001b[0m\u001b[0mschema\u001b[0m\u001b[0;34m,\u001b[0m\u001b[0;34m\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[0m\u001b[1;32m 4\u001b[0m )\n", "\u001b[0;32m~/Development/jsonschema/jsonschema/validators.py\u001b[0m in \u001b[0;36mvalidate\u001b[0;34m(instance, schema, cls, *args, **kwargs)\u001b[0m\n\u001b[1;32m 899\u001b[0m \u001b[0merror\u001b[0m \u001b[0;34m=\u001b[0m \u001b[0mexceptions\u001b[0m\u001b[0;34m.\u001b[0m\u001b[0mbest_match\u001b[0m\u001b[0;34m(\u001b[0m\u001b[0mvalidator\u001b[0m\u001b[0;34m.\u001b[0m\u001b[0miter_errors\u001b[0m\u001b[0;34m(\u001b[0m\u001b[0minstance\u001b[0m\u001b[0;34m)\u001b[0m\u001b[0;34m)\u001b[0m\u001b[0;34m\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[1;32m 900\u001b[0m \u001b[0;32mif\u001b[0m \u001b[0merror\u001b[0m \u001b[0;32mis\u001b[0m \u001b[0;32mnot\u001b[0m \u001b[0;32mNone\u001b[0m\u001b[0;34m:\u001b[0m\u001b[0;34m\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[0;32m--> 901\u001b[0;31m \u001b[0;32mraise\u001b[0m \u001b[0merror\u001b[0m\u001b[0;34m\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[0m\u001b[1;32m 902\u001b[0m \u001b[0;34m\u001b[0m\u001b[0m\n\u001b[1;32m 903\u001b[0m \u001b[0;34m\u001b[0m\u001b[0m\n", "\u001b[0;31mValidationError\u001b[0m: 'Invalid' is not of type 'number'\n\nFailed validating 'type' in schema['properties']['price']:\n {'type': 'number'}\n\nOn instance['price']:\n 'Invalid'" ] } ], "source": [ "validate(\n", " instance={\"name\" : \"Eggs\", \"price\" : \"Invalid\"},\n", " schema=schema,\n", ")" ] }, { "cell_type": "markdown", "metadata": {}, "source": [ "It can also be used from console:" ] }, { "cell_type": "code", "execution_count": null, "metadata": {}, "outputs": [], "source": [ "!echo '{\"name\" : \"Eggs\", \"price\" : 34.99}' > /tmp/sample.json" ] }, { "cell_type": "code", "execution_count": null, "metadata": {}, "outputs": [], "source": [ "!echo '{\"type\" : \"object\", \"properties\" : {\"price\" : {\"type\" : \"number\"}, \"name\" : {\"type\" : \"string\"}}}' > /tmp/sample.schema" ] }, { "cell_type": "code", "execution_count": null, "metadata": {}, "outputs": [], "source": [ "!jsonschema -i /tmp/sample.json /tmp/sample.schema" ] }, { "cell_type": "markdown", "metadata": {}, "source": [ "## Do your own experiments here..." ] }, { "cell_type": "markdown", "metadata": {}, "source": [ "Try `jsonschema` youself by adding your code below and running your own experiments 👇" ] }, { "cell_type": "code", "execution_count": null, "metadata": {}, "outputs": [], "source": [ "import jsonschema\n", "\n", "# your code here\n", "jsonschema." ] } ], "metadata": { "kernelspec": { "display_name": "Python 3", "language": "python", "name": "python3" }, "language_info": { "codemirror_mode": { "name": "ipython", "version": 3 }, "file_extension": ".py", "mimetype": "text/x-python", "name": "python", "nbconvert_exporter": "python", "pygments_lexer": "ipython3", "version": "3.7.4" } }, "nbformat": 4, "nbformat_minor": 4 }