{"id":48231,"date":"2023-08-21T18:20:52","date_gmt":"2023-06-14T07:16:07","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/%e4%bd%bf%e7%94%a8aws-cdk-python%e6%9e%84%e5%bb%baaws-appsync-api%e3%80%82\/"},"modified":"2024-04-30T19:31:47","modified_gmt":"2024-04-30T11:31:47","slug":"%e4%bd%bf%e7%94%a8aws-cdk-python%e6%9e%84%e5%bb%baaws-appsync-api%e3%80%82","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/%e4%bd%bf%e7%94%a8aws-cdk-python%e6%9e%84%e5%bb%baaws-appsync-api%e3%80%82\/","title":{"rendered":"\u4f7f\u7528AWS CDK Python\u6784\u5efaAWS AppSync API"},"content":{"rendered":"<h1>\u9996\u5148<\/h1>\n<p>\u6211\u5728\u4ee5\u4e0b\u6587\u7ae0\u4e2d\u7814\u7a76\u4e86\u4f7f\u7528 AWS CDK Python \u8fdb\u884c\u90e8\u7f72\u7684\u65b9\u6cd5\u3002\u672c\u6b21\u8bb0\u5f55\u4e86\u4f7f\u7528 AWS CDK Python \u5b9e\u9645\u90e8\u7f72 AWS AppSync \u7684\u65b9\u6cd5\u3002<\/p>\n<p>\u6709\u5173AWS CDK Python\u7684\u8bbe\u7f6e\u65b9\u6cd5\uff0c\u8bf7\u53c2\u8003\u4e0a\u8ff0\u6587\u7ae0\u3002<\/p>\n<h2>\u6267\u884c\u73af\u5883\u7b49<\/h2>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">Ubuntu 20.04 LTS<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">aws-cdk: 1.125.0 (build 67b4921)<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">pipenv: version 2021.5.29<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\u30c7\u30d7\u30ed\u30a4\u5148: ap-northeast-1 (Tokyo) \u30ea\u30fc\u30b8\u30e7\u30f3<\/ul>\n<h1>\u90e8\u7f72 AWS AppSync<\/h1>\n<p>\u672c\u6587\u4ecb\u7ecd\u5982\u4f55\u90e8\u7f72\u4ee5\u4e0b\u7b80\u5355\u7684GraphQL API\u67b6\u6784\u3002<\/p>\n<pre class=\"post-pre\"><code>type User {\r\n  name: String!\r\n  age: Int!\r\n}\r\n\r\ntype Query {\r\n  hello: String\r\n  getUsers: [ User! ]\r\n}\r\n\r\ntype Mutation {\r\n  addUser(name: String!, age: Int!): User\r\n}\r\n<\/code><\/pre>\n<h2>\u51c6\u5907\u597d<\/h2>\n<p>\u4e3a\u4e86\u5c06DynamoDB\u7528\u4f5cGraphQL API\u7684\u6570\u636e\u6e90\uff0c\u5e76\u5c06AWS Lambda\u7528\u4f5c\u8fd4\u56de\u56fa\u5b9a\u5b57\u7b26\u4e32\u7684\u6570\u636e\u6e90\uff0c\u56e0\u6b64\u9700\u8981\u5728Python\u4e2d\u5b89\u88c5\u5404\u4e2a\u670d\u52a1\u7684\u5e93\u4ee5\u4f7f\u7528\u5b83\u4eec\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"nv\">$ <\/span>pipenv <span class=\"nb\">install <\/span>aws-cdk.aws-appsync aws-cdk.aws-dynamodb aws-cdk.aws-lambda\r\n<\/code><\/pre>\n<h2>AWS AppSync \u670d\u52a1\u7684\u7ed3\u6784<\/h2>\n<p>\u5728\u5199CDK\u4ee3\u7801\u4e4b\u524d\uff0c\u5148\u7b80\u8981\u89e3\u91ca\u4e00\u4e0bAppSync\u7684\u7ed3\u6784\u3002\u56e0\u4e3a\u5728\u7f16\u5199\u4ee3\u7801\u65f6\u4e86\u89e3\u7ed3\u6784\uff0c\u53ef\u4ee5\u66f4\u5bb9\u6613\u7406\u89e3\u3002\u4e3b\u8981\u5185\u5bb9\u5305\u62ecSchema\u3001DataSource\u548cResolvers\u4e09\u90e8\u5206\uff0c\u5b83\u4eec\u90fd\u4f4d\u4e8eGraphQL API\u4e4b\u4e0b\u3002<\/p>\n<p>GraphQL API: \u30c8\u30c3\u30d7\u30ec\u30d9\u30eb\u30b3\u30f3\u30c6\u30f3\u30c4\u3067\u3042\u308a\u3001\u30a8\u30f3\u30c9\u30dd\u30a4\u30f3\u30c8\u3092\u6301\u3064<\/p>\n<p>Schema: GraphQL API \u306b\u7d10\u3065\u304f\u30b9\u30ad\u30fc\u30de\u5b9a\u7fa9<\/p>\n<p>DataSource: AWS AppSync\u304c\u9023\u643a\u3059\u308b (AppSync\u5916\u306e) \u30b5\u30fc\u30d3\u30b9\u306e\u7d10\u3065\u3051\u306e\u5b9a\u7fa9\u3002 \u4f8b\u3048\u3070\u3001\u3069\u306e\u3088\u3046\u306a DynamoDB Table \u3092\u5229\u7528\u3059\u308b\u304b\u3001\u306a\u3069<\/p>\n<p>Resolvers: Schema \u3068 DataSource \u3092\u7d50\u3073\u3064\u3051\u308b\u30eb\u30fc\u30eb\u5b9a\u7fa9\u3002 Schema \u306e\u5165\u529b\u3092 DataSource \u3067\u5b9a\u7fa9\u3055\u308c\u3066\u3044\u308b\u5404\u30b5\u30fc\u30d3\u30b9\u3067\u5229\u7528\u3067\u304d\u308b\u5f62\u306b\u5909\u63db\u3057\u3066\u3084\u308b\u5fc5\u8981\u304c\u3042\u308b\u305f\u3081\u3001\u3053\u306e\u5909\u63db\u30fb\u5bfe\u5fdc\u3092\u5b9f\u73fe\u3059\u308b\u90e8\u5206<\/p>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d837d913a08637a6b38b0\/15-0.png\" alt=\"How-It-Works-product-page-diagram_AppSync@2x.c39ecb89b7b40ba682cf0f875ae13b6bdd8dca5b.png\" \/><\/div>\n<p>\u8fd9\u5e45\u56fe\u662f\u4eceAWS\u5b98\u65b9\u5f15\u7528\u6765\u7684\uff0c\u4f46\u662f\u4ece\u8fd9\u4e2a\u56fe\u4e2d\u53ef\u4ee5\u770b\u51fa\uff0cDataSource\u53ef\u4ee5\u72ec\u7acb\u4e8eAppSync\u5b58\u5728\u3002AppSync\u53ea\u662f\u4f5c\u4e3a\u83b7\u53d6\u548c\u64cd\u4f5c\u8fd9\u4e9b\u6570\u636e\u6e90\u7684\u5916\u90e8\u670d\u52a1\u5b58\u5728\u3002<\/p>\n<h2>AppSync Stack \u7684\u5b9e\u73b0<\/h2>\n<p>\u5728\u4f7f\u7528cdk init app\u8fdb\u884c\u521d\u59cb\u5316\u540e\uff0c\u6211\u7f16\u8f91\u548c\u6dfb\u52a0\u4e86\u4ee5\u4e0b\u5185\u5bb9\u3002\u5e26\u6709(*)\u7684\u5185\u5bb9\u662f\u6211\u65b0\u6dfb\u52a0\u7684\u3002<br \/>\n\u5728\u4f7f\u7528cdk init app\u8fdb\u884c\u521d\u59cb\u5316\u540e\uff0c\u6211\u7f16\u8f91\u548c\u6dfb\u52a0\u4e86\u4ee5\u4e0b\u5185\u5bb9\u3002\u5e26\u6709(*)\u7684\u662f\u6211\u65b0\u589e\u52a0\u7684\u3002<br \/>\n\u4f7f\u7528cdk init app\u8fdb\u884c\u521d\u59cb\u5316\u540e\uff0c\u6211\u7f16\u8f91\u548c\u6dfb\u52a0\u4e86\u4ee5\u4e0b\u5185\u5bb9\u3002\u6709(*)\u6807\u8bb0\u7684\u662f\u6211\u65b0\u589e\u52a0\u7684\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"nb\">.<\/span>\r\n\u251c\u2500\u2500 cdk_appsync\r\n\u2502\u00a0\u00a0 \u2514\u2500\u2500 cdk_appsync_stack.py\r\n\u251c\u2500\u2500 lambda  <span class=\"o\">(<\/span><span class=\"k\">*<\/span><span class=\"o\">)<\/span>\r\n\u2502\u00a0\u00a0 \u2514\u2500\u2500 fixed_string.py  <span class=\"o\">(<\/span><span class=\"k\">*<\/span><span class=\"o\">)<\/span>\r\n\u251c\u2500\u2500 resolvers  <span class=\"o\">(<\/span><span class=\"k\">*<\/span><span class=\"o\">)<\/span>\r\n\u2502\u00a0\u00a0 \u2514\u2500\u2500 addUser.vtl  <span class=\"o\">(<\/span><span class=\"k\">*<\/span><span class=\"o\">)<\/span>\r\n\u251c\u2500\u2500 schema.graphql  <span class=\"o\">(<\/span><span class=\"k\">*<\/span><span class=\"o\">)<\/span>\r\n<\/code><\/pre>\n<h3>\u6a21\u5f0f.graphql<\/h3>\n<p>\u8fd9\u91cc\u662f\u5bf9\u6240\u521b\u5efa\u7684 GraphQL API \u7684\u6a21\u5f0f\u5b9a\u4e49\u8fdb\u884c\u8bb0\u5f55\u3002<br \/>\n\u7531\u4e8e\u8fd9\u4e0e\u4e4b\u524d\u7684\u6a21\u5f0f\u6587\u4ef6\u76f8\u540c\uff0c\u6240\u4ee5\u53ef\u4ee5\u7701\u7565\u3002<\/p>\n<h3>lambda\/fixed_string.py =&gt; lambda\/fixed_string.py<\/h3>\n<p>\u8fd9\u662f\u4e00\u4e2a\u7528\u4f5cAppSync\u6570\u636e\u6e90\u7684Lambda\u51fd\u6570\uff0c\u8fd4\u56de\u56fa\u5b9a\u7684\u5b57\u7b26\u4e32\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"k\">def<\/span> <span class=\"nf\">handler<\/span><span class=\"p\">(<\/span><span class=\"n\">event<\/span><span class=\"p\">,<\/span> <span class=\"n\">context<\/span><span class=\"p\">):<\/span>\r\n    <span class=\"k\">return<\/span> <span class=\"s\">'This is a fixed string!'<\/span>\r\n<\/code><\/pre>\n<h3>\u6dfb\u52a0\u7528\u6237\u7684\u89e3\u6790\u5668\u529f\u80fd\u6a21\u677f\u6587\u4ef6\uff1aresolvers\/addUser.vtl<\/h3>\n<p>AppSync\u7684\u89e3\u6790\u5668\u53ef\u4ee5\u4f7f\u7528Apache Velocity\u6a21\u677f\u8bed\u8a00\uff08VTL\uff09\u8fdb\u884c\u7f16\u5199\u3002\u540e\u6587\u5c06\u4ecb\u7ecd\uff0c\u867d\u7136\u53ef\u4ee5\u4f7f\u7528CDK\u4e2d\u63d0\u4f9b\u7684\u52a9\u624b\u6765\u7f16\u5199\u89e3\u6790\u5668\uff0c\u4f46\u8fd9\u91cc\u4e3a\u4e86\u5c55\u793a\u4f7f\u7528VTL\u7684\u793a\u4f8b\u800c\u505a\u51c6\u5907\u3002<\/p>\n<p>\u5185\u5bb9\u5982\u4e0b\uff1a<\/p>\n<pre class=\"post-pre\"><code><span class=\"err\">{<\/span>\r\n    \"version\" : \"2017-02-28\",\r\n    \"operation\" : \"PutItem\",\r\n    \"key\" : <span class=\"err\">{<\/span>\r\n        \"name\": <span class=\"p\">$<\/span><span class=\"nv\">util<\/span><span class=\"p\">.<\/span><span class=\"nv\">dynamodb<\/span><span class=\"p\">.<\/span><span class=\"nv\">toDynamoDBJson<\/span><span class=\"p\">($<\/span><span class=\"nv\">ctx<\/span><span class=\"p\">.<\/span><span class=\"nv\">args<\/span><span class=\"p\">.<\/span><span class=\"nv\">name<\/span><span class=\"p\">)<\/span>\r\n    },\r\n    \"attributeValues\" : <span class=\"err\">{<\/span>\r\n        \"age\": <span class=\"p\">$<\/span><span class=\"nv\">util<\/span><span class=\"p\">.<\/span><span class=\"nv\">dynamodb<\/span><span class=\"p\">.<\/span><span class=\"nv\">toDynamoDBJson<\/span><span class=\"p\">($<\/span><span class=\"nv\">ctx<\/span><span class=\"p\">.<\/span><span class=\"nv\">args<\/span><span class=\"p\">.<\/span><span class=\"nv\">age<\/span><span class=\"p\">)<\/span>\r\n    }\r\n}\r\n<\/code><\/pre>\n<p>\u8fd9\u662f\u4e00\u4e2a\u5b9e\u65bd DynamoDB \u6620\u5c04\u6a21\u677f\u5e76\u5b9e\u73b0 putItem \u529f\u80fd\u7684\u4f8b\u5b50\u3002\u8fd8\u53ef\u4ee5\u9002\u7528\u4e8e\u5176\u4ed6 DynamoDB \u7684\u4e0d\u540c\u64cd\u4f5c\uff08\u5982 GetItem \u6216 ListItem\uff09\u3002\u8bf7\u53c2\u8003\u672c\u6587\u6765\u4e86\u89e3\u5177\u4f53\u7684\u5199\u6cd5\u3002<\/p>\n<h3>cdk_appsync\/cdk_appsync_stack.py \u53ef\u4ee5\u88ab\u6539\u5199\u6210\u4e2d\u6587\u4e3a\uff1acdk_appsync\/cdk_appsync_stack.py<\/h3>\n<p>\u8fd9\u91cc\u662f\u6b63\u6587\u3002\u8bf7\u53c2\u8003\u4ee5\u4e0b\u9875\u9762\u7b49\u8fdb\u884c\u8bb0\u5f55\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"c1\">#!\/usr\/bin\/python\r\n# -*- coding: utf-8 -*-\r\n<\/span>\r\n<span class=\"kn\">from<\/span> <span class=\"nn\">aws_cdk<\/span> <span class=\"kn\">import<\/span> <span class=\"p\">(<\/span>\r\n    <span class=\"n\">core<\/span> <span class=\"k\">as<\/span> <span class=\"n\">cdk<\/span><span class=\"p\">,<\/span>\r\n    <span class=\"n\">aws_lambda<\/span> <span class=\"k\">as<\/span> <span class=\"n\">cdk_lambda<\/span><span class=\"p\">,<\/span>\r\n    <span class=\"n\">aws_appsync<\/span> <span class=\"k\">as<\/span> <span class=\"n\">cdk_appsync<\/span><span class=\"p\">,<\/span>\r\n    <span class=\"n\">aws_dynamodb<\/span> <span class=\"k\">as<\/span> <span class=\"n\">cdk_dynamodb<\/span>\r\n<span class=\"p\">)<\/span>\r\n<span class=\"kn\">from<\/span> <span class=\"nn\">aws_cdk.aws_appsync<\/span> <span class=\"kn\">import<\/span> <span class=\"p\">(<\/span>\r\n    <span class=\"n\">AuthorizationConfig<\/span><span class=\"p\">,<\/span> <span class=\"n\">AuthorizationMode<\/span><span class=\"p\">,<\/span> <span class=\"n\">AuthorizationType<\/span><span class=\"p\">,<\/span>\r\n    <span class=\"n\">MappingTemplate<\/span>\r\n<span class=\"p\">)<\/span>\r\n\r\n\r\n<span class=\"k\">class<\/span> <span class=\"nc\">CdkAppSyncStack<\/span><span class=\"p\">(<\/span><span class=\"n\">cdk<\/span><span class=\"p\">.<\/span><span class=\"n\">Stack<\/span><span class=\"p\">):<\/span>\r\n\r\n    <span class=\"k\">def<\/span> <span class=\"nf\">__init__<\/span><span class=\"p\">(<\/span><span class=\"bp\">self<\/span><span class=\"p\">,<\/span> <span class=\"n\">scope<\/span><span class=\"p\">:<\/span> <span class=\"n\">cdk<\/span><span class=\"p\">.<\/span><span class=\"n\">Construct<\/span><span class=\"p\">,<\/span>\r\n                 <span class=\"n\">construct_id<\/span><span class=\"p\">:<\/span> <span class=\"nb\">str<\/span><span class=\"p\">,<\/span> <span class=\"o\">**<\/span><span class=\"n\">kwargs<\/span><span class=\"p\">)<\/span> <span class=\"o\">-&gt;<\/span> <span class=\"bp\">None<\/span><span class=\"p\">:<\/span>\r\n        <span class=\"nb\">super<\/span><span class=\"p\">().<\/span><span class=\"n\">__init__<\/span><span class=\"p\">(<\/span><span class=\"n\">scope<\/span><span class=\"p\">,<\/span> <span class=\"n\">construct_id<\/span><span class=\"p\">,<\/span> <span class=\"o\">**<\/span><span class=\"n\">kwargs<\/span><span class=\"p\">)<\/span>\r\n\r\n        <span class=\"c1\"># GraphQL API \u3068\u5229\u7528\u3059\u308b\u30b9\u30ad\u30fc\u30de\u306e\u5b9a\u7fa9\r\n<\/span>        <span class=\"n\">graph_api<\/span> <span class=\"o\">=<\/span> <span class=\"n\">cdk_appsync<\/span><span class=\"p\">.<\/span><span class=\"n\">GraphqlApi<\/span><span class=\"p\">(<\/span>\r\n            <span class=\"bp\">self<\/span><span class=\"p\">,<\/span> <span class=\"s\">'HelloAppSyncFromCDK'<\/span><span class=\"p\">,<\/span>\r\n            <span class=\"n\">name<\/span><span class=\"o\">=<\/span><span class=\"s\">'HelloAppSyncFromCDK'<\/span><span class=\"p\">,<\/span>\r\n            <span class=\"n\">authorization_config<\/span><span class=\"o\">=<\/span><span class=\"n\">AuthorizationConfig<\/span><span class=\"p\">(<\/span>\r\n                <span class=\"n\">default_authorization<\/span><span class=\"o\">=<\/span><span class=\"n\">AuthorizationMode<\/span><span class=\"p\">(<\/span>\r\n                    <span class=\"n\">authorization_type<\/span><span class=\"o\">=<\/span><span class=\"n\">AuthorizationType<\/span><span class=\"p\">.<\/span><span class=\"n\">API_KEY<\/span>\r\n                <span class=\"p\">)<\/span>\r\n            <span class=\"p\">),<\/span>\r\n            <span class=\"n\">schema<\/span><span class=\"o\">=<\/span><span class=\"n\">cdk_appsync<\/span><span class=\"p\">.<\/span><span class=\"n\">Schema<\/span><span class=\"p\">.<\/span><span class=\"n\">from_asset<\/span><span class=\"p\">(<\/span><span class=\"s\">'schema.graphql'<\/span><span class=\"p\">),<\/span>\r\n            <span class=\"n\">xray_enabled<\/span><span class=\"o\">=<\/span><span class=\"bp\">False<\/span>\r\n        <span class=\"p\">)<\/span>\r\n\r\n        <span class=\"c1\"># DynamoDB DataSource \u3092\u8ffd\u52a0\r\n<\/span>        <span class=\"n\">data_table<\/span> <span class=\"o\">=<\/span> <span class=\"n\">cdk_dynamodb<\/span><span class=\"p\">.<\/span><span class=\"n\">Table<\/span><span class=\"p\">(<\/span>\r\n            <span class=\"bp\">self<\/span><span class=\"p\">,<\/span> <span class=\"s\">\"DemoTable\"<\/span><span class=\"p\">,<\/span>\r\n            <span class=\"n\">partition_key<\/span><span class=\"o\">=<\/span><span class=\"n\">cdk_dynamodb<\/span><span class=\"p\">.<\/span><span class=\"n\">Attribute<\/span><span class=\"p\">(<\/span>\r\n                <span class=\"n\">name<\/span><span class=\"o\">=<\/span><span class=\"s\">\"name\"<\/span><span class=\"p\">,<\/span>\r\n                <span class=\"nb\">type<\/span><span class=\"o\">=<\/span><span class=\"n\">cdk_dynamodb<\/span><span class=\"p\">.<\/span><span class=\"n\">AttributeType<\/span><span class=\"p\">.<\/span><span class=\"n\">STRING<\/span>\r\n            <span class=\"p\">)<\/span>\r\n        <span class=\"p\">)<\/span>\r\n        <span class=\"n\">data_source<\/span> <span class=\"o\">=<\/span> <span class=\"n\">graph_api<\/span><span class=\"p\">.<\/span><span class=\"n\">add_dynamo_db_data_source<\/span><span class=\"p\">(<\/span>\r\n            <span class=\"s\">'demoDataSource'<\/span><span class=\"p\">,<\/span> <span class=\"n\">data_table<\/span><span class=\"p\">)<\/span>\r\n\r\n        <span class=\"c1\"># getUsers \u306b\u5168\u4ef6\u53d6\u5f97\u306e Resolver \u3092\u4ed8\u4e0e (\u30d7\u30ed\u30b0\u30e9\u30e0\u30d9\u30fc\u30b9)\r\n<\/span>        <span class=\"n\">data_source<\/span><span class=\"p\">.<\/span><span class=\"n\">create_resolver<\/span><span class=\"p\">(<\/span>\r\n            <span class=\"n\">type_name<\/span><span class=\"o\">=<\/span><span class=\"s\">'Query'<\/span><span class=\"p\">,<\/span>\r\n            <span class=\"n\">field_name<\/span><span class=\"o\">=<\/span><span class=\"s\">'getUsers'<\/span><span class=\"p\">,<\/span>\r\n            <span class=\"n\">request_mapping_template<\/span><span class=\"o\">=<\/span><span class=\"n\">MappingTemplate<\/span><span class=\"p\">.<\/span><span class=\"n\">dynamo_db_scan_table<\/span><span class=\"p\">(),<\/span>\r\n            <span class=\"n\">response_mapping_template<\/span><span class=\"o\">=<\/span><span class=\"n\">MappingTemplate<\/span><span class=\"p\">.<\/span><span class=\"n\">dynamo_db_result_list<\/span><span class=\"p\">()<\/span>\r\n        <span class=\"p\">)<\/span>\r\n\r\n        <span class=\"c1\"># addUser \u306b vtl \u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u306e Resolver \u3092\u4ed8\u4e0e (VTL\u30d9\u30fc\u30b9)\r\n<\/span>        <span class=\"n\">data_source<\/span><span class=\"p\">.<\/span><span class=\"n\">create_resolver<\/span><span class=\"p\">(<\/span>\r\n            <span class=\"n\">type_name<\/span><span class=\"o\">=<\/span><span class=\"s\">'Mutation'<\/span><span class=\"p\">,<\/span>\r\n            <span class=\"n\">field_name<\/span><span class=\"o\">=<\/span><span class=\"s\">'addUser'<\/span><span class=\"p\">,<\/span>\r\n            <span class=\"n\">request_mapping_template<\/span><span class=\"o\">=<\/span><span class=\"n\">MappingTemplate<\/span><span class=\"p\">.<\/span><span class=\"n\">from_file<\/span><span class=\"p\">(<\/span>\r\n                <span class=\"s\">'resolvers\/addUser.vtl'<\/span>\r\n            <span class=\"p\">),<\/span>\r\n            <span class=\"n\">response_mapping_template<\/span><span class=\"o\">=<\/span><span class=\"n\">MappingTemplate<\/span><span class=\"p\">.<\/span><span class=\"n\">dynamo_db_result_item<\/span><span class=\"p\">()<\/span>\r\n        <span class=\"p\">)<\/span>\r\n\r\n        <span class=\"c1\"># hello \u306b\u56fa\u5b9a\u6587\u5b57\u5217\u3092\u8fd4\u3059 Lambda \u95a2\u6570\u306e Resolver \u3092\u4ed8\u4e0e\r\n<\/span>        <span class=\"n\">fixed_str<\/span> <span class=\"o\">=<\/span> <span class=\"n\">cdk_lambda<\/span><span class=\"p\">.<\/span><span class=\"n\">Function<\/span><span class=\"p\">(<\/span>\r\n            <span class=\"bp\">self<\/span><span class=\"p\">,<\/span> <span class=\"s\">'FixedStringLambda'<\/span><span class=\"p\">,<\/span>\r\n            <span class=\"n\">runtime<\/span><span class=\"o\">=<\/span><span class=\"n\">cdk_lambda<\/span><span class=\"p\">.<\/span><span class=\"n\">Runtime<\/span><span class=\"p\">.<\/span><span class=\"n\">PYTHON_3_8<\/span><span class=\"p\">,<\/span>\r\n            <span class=\"n\">code<\/span><span class=\"o\">=<\/span><span class=\"n\">cdk_lambda<\/span><span class=\"p\">.<\/span><span class=\"n\">Code<\/span><span class=\"p\">.<\/span><span class=\"n\">asset<\/span><span class=\"p\">(<\/span><span class=\"s\">'lambda'<\/span><span class=\"p\">),<\/span>\r\n            <span class=\"n\">handler<\/span><span class=\"o\">=<\/span><span class=\"s\">'fixed_string.handler'<\/span><span class=\"p\">,<\/span>\r\n            <span class=\"n\">environment<\/span><span class=\"o\">=<\/span><span class=\"p\">{},<\/span>\r\n        <span class=\"p\">)<\/span>\r\n        <span class=\"n\">graph_api<\/span><span class=\"p\">.<\/span><span class=\"n\">add_lambda_data_source<\/span><span class=\"p\">(<\/span>\r\n            <span class=\"s\">'FixedStringFn'<\/span><span class=\"p\">,<\/span> <span class=\"n\">fixed_str<\/span>\r\n        <span class=\"p\">).<\/span><span class=\"n\">create_resolver<\/span><span class=\"p\">(<\/span>\r\n            <span class=\"n\">type_name<\/span><span class=\"o\">=<\/span><span class=\"s\">'Query'<\/span><span class=\"p\">,<\/span> <span class=\"n\">field_name<\/span><span class=\"o\">=<\/span><span class=\"s\">'hello'<\/span>\r\n        <span class=\"p\">)<\/span>\r\n<\/code><\/pre>\n<p>\u901a\u8fc7\u4ee3\u7801\uff0c\u6211\u4eec\u53ef\u4ee5\u6e05\u695a\u5730\u770b\u51fa\u4ee5\u4e0b\u7279\u70b9\uff1a&#8221;\u6570\u636e\u6e90\u7684\u5916\u90e8\u8d44\u6e90\u5b9a\u4e49\uff08\u5982 data_table \u548c fixed_str\uff09&#8221;\uff0c&#8221;\u4e0e\u5916\u90e8\u8d44\u6e90\u7684\u5173\u8054\uff08add_xxxxxxx_data_source\uff09&#8221;\uff0c&#8221;\u4e0e\u89e3\u6790\u5668\u7684\u5bf9\u5e94\u5173\u7cfb\u5b9a\u4e49\uff08create_resolver\uff09&#8221;\u90fd\u88ab\u660e\u786e\u5730\u5206\u5f00\u4e86\u3002\u6211\u8ba4\u4e3a\uff0c\u5982\u679c\u6211\u4eec\u7406\u89e3\u4e86AppSync\u7684\u7ed3\u6784\u548c\u5b9a\u4f4d\uff0c\u8fd9\u4e9b\u5c31\u4f1a\u8fc5\u901f\u5730\u878d\u5165\u6211\u4eec\u7684\u601d\u7ef4\u3002<\/p>\n<p>\u5982\u679c\u5b9e\u65bd\u5230\u8fd9\u4e00\u6b65\uff0c\u53ef\u4ee5\u4f7f\u7528pipenv run cdk deploy\u8fdb\u884c\u90e8\u7f72\u3002<\/p>\n<h2>\u90e8\u7f72\u540e\u7684\u64cd\u4f5c\u9a8c\u8bc1<\/h2>\n<p>\u5c1d\u8bd5\u4f7f\u7528curl\u8fdb\u884c\u64cd\u4f5c\u9a8c\u8bc1\u3002\u7531\u4e8e\u8fd9\u6b21\u8fdb\u884c\u4e86\u57fa\u4e8eAPI\u5bc6\u94a5\u7684\u5b89\u5168\u63aa\u65bd\uff0c\u6240\u4ee5\u6211\u4eec\u9700\u8981\u4eceAppScyn\u63a7\u5236\u53f0\u83b7\u53d6\u7ec8\u7aef\u70b9URL\u548cAPI\u5bc6\u94a5\u6765\u4f7f\u7528\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"c\"># \u56fa\u5b9a\u6587\u5b57\u5217\u3092\u53d6\u5f97\u3059\u308b\u30af\u30a8\u30ea: hello \u3092\u767a\u884c<\/span>\r\n<span class=\"nv\">$ <\/span>curl <span class=\"nt\">-s<\/span> <span class=\"nt\">-X<\/span> POST <span class=\"nt\">-H<\/span> <span class=\"s2\">\"Context-Type: application\/json\"<\/span> \/\r\n       <span class=\"nt\">-H<\/span> <span class=\"s2\">\"X-API-Key: ************************************\"<\/span> <span class=\"se\">\\<\/span>\r\n       <span class=\"nt\">-d<\/span> <span class=\"s1\">'{\"query\": \"{ hello }\"}'<\/span> <span class=\"se\">\\<\/span>\r\n       https:\/\/<span class=\"k\">**************************<\/span>.appsync-api.ap-northeast-1.amazonaws.com\/graphql | jq <span class=\"nb\">.<\/span>\r\n<span class=\"o\">{<\/span>\r\n  <span class=\"s2\">\"data\"<\/span>: <span class=\"o\">{<\/span>\r\n    <span class=\"s2\">\"hello\"<\/span>: <span class=\"s2\">\"This is a fixed string!\"<\/span>\r\n  <span class=\"o\">}<\/span>\r\n<span class=\"o\">}<\/span>\r\n\r\n<span class=\"c\"># \u30e6\u30fc\u30b6\u30fc\u3092\u8ffd\u52a0\u3059\u308b mutation <\/span>\r\n<span class=\"nv\">$ <\/span>curl <span class=\"nt\">-s<\/span> <span class=\"nt\">-X<\/span> POST <span class=\"nt\">-H<\/span> <span class=\"s2\">\"Context-Type: application\/json\"<\/span> \/\r\n       <span class=\"nt\">-H<\/span> <span class=\"s2\">\"X-API-Key: ************************************\"<\/span> <span class=\"se\">\\<\/span>\r\n       <span class=\"nt\">-d<\/span> <span class=\"s1\">'{\"query\": \"mutation { addUser(name: \\\"TestUser1\\\", age: 20) { name age } }\"}'<\/span> <span class=\"se\">\\<\/span>\r\n       https:\/\/<span class=\"k\">**************************<\/span>.appsync-api.ap-northeast-1.amazonaws.com\/graphql | jq <span class=\"nb\">.<\/span>\r\n<span class=\"o\">{<\/span>\r\n  <span class=\"s2\">\"data\"<\/span>: <span class=\"o\">{<\/span>\r\n    <span class=\"s2\">\"addUser\"<\/span>: <span class=\"o\">{<\/span>\r\n      <span class=\"s2\">\"name\"<\/span>: <span class=\"s2\">\"TestUser1\"<\/span>,\r\n      <span class=\"s2\">\"age\"<\/span>: 20\r\n    <span class=\"o\">}<\/span>\r\n  <span class=\"o\">}<\/span>\r\n<span class=\"o\">}<\/span>\r\n\r\n<span class=\"c\"># \u5168\u30e6\u30fc\u30b6\u30fc\u53d6\u5f97\u3059\u308b\u30af\u30a8\u30ea<\/span>\r\n<span class=\"nv\">$ <\/span>curl <span class=\"nt\">-s<\/span> <span class=\"nt\">-X<\/span> POST <span class=\"nt\">-H<\/span> <span class=\"s2\">\"Context-Type: application\/json\"<\/span> \/\r\n       <span class=\"nt\">-H<\/span> <span class=\"s2\">\"X-API-Key: ************************************\"<\/span> <span class=\"se\">\\<\/span>\r\n       <span class=\"nt\">-d<\/span> <span class=\"s1\">'{\"query\": \"{ getUsers { name age } }\"}'<\/span> <span class=\"se\">\\<\/span>\r\n       https:\/\/<span class=\"k\">**************************<\/span>.appsync-api.ap-northeast-1.amazonaws.com\/graphql | jq <span class=\"nb\">.<\/span> \r\n<span class=\"o\">{<\/span>\r\n  <span class=\"s2\">\"data\"<\/span>: <span class=\"o\">{<\/span>\r\n    <span class=\"s2\">\"getUsers\"<\/span>: <span class=\"o\">[<\/span>\r\n      <span class=\"o\">{<\/span>\r\n        <span class=\"s2\">\"name\"<\/span>: <span class=\"s2\">\"TestUser1\"<\/span>,\r\n        <span class=\"s2\">\"age\"<\/span>: 20\r\n      <span class=\"o\">}<\/span>\r\n    <span class=\"o\">]<\/span>\r\n  <span class=\"o\">}<\/span>\r\n<span class=\"o\">}<\/span>\r\n\r\n<span class=\"c\"># --------<\/span>\r\n<span class=\"c\"># \u518d\u5ea6\u30e6\u30fc\u30b6\u30fc\u3092\u8ffd\u52a0<\/span>\r\n<span class=\"nv\">$ <\/span>curl <span class=\"nt\">-s<\/span> <span class=\"nt\">-X<\/span> POST <span class=\"nt\">-H<\/span> <span class=\"s2\">\"Context-Type: application\/json\"<\/span> \/\r\n       <span class=\"nt\">-H<\/span> <span class=\"s2\">\"X-API-Key: ************************************\"<\/span> <span class=\"se\">\\<\/span>\r\n       <span class=\"nt\">-d<\/span> <span class=\"s1\">'{\"query\": \"mutation { addUser(name: \\\"TestUser2\\\", age: 30) { name age } }\"}'<\/span> <span class=\"se\">\\<\/span>\r\n       https:\/\/<span class=\"k\">**************************<\/span>.appsync-api.ap-northeast-1.amazonaws.com\/graphql | jq <span class=\"nb\">.<\/span>\r\n<span class=\"o\">{<\/span>\r\n  <span class=\"s2\">\"data\"<\/span>: <span class=\"o\">{<\/span>\r\n    <span class=\"s2\">\"addUser\"<\/span>: <span class=\"o\">{<\/span>\r\n      <span class=\"s2\">\"name\"<\/span>: <span class=\"s2\">\"TestUser2\"<\/span>,\r\n      <span class=\"s2\">\"age\"<\/span>: 30\r\n    <span class=\"o\">}<\/span>\r\n  <span class=\"o\">}<\/span>\r\n<span class=\"o\">}<\/span>\r\n\r\n<span class=\"c\"># \u5168\u30e6\u30fc\u30b6\u30fc\u53d6\u5f97\u3059\u308b\u30af\u30a8\u30ea<\/span>\r\n<span class=\"nv\">$ <\/span>curl <span class=\"nt\">-s<\/span> <span class=\"nt\">-X<\/span> POST <span class=\"nt\">-H<\/span> <span class=\"s2\">\"Context-Type: application\/json\"<\/span> \/\r\n       <span class=\"nt\">-H<\/span> <span class=\"s2\">\"X-API-Key: ************************************\"<\/span> <span class=\"se\">\\<\/span>\r\n       <span class=\"nt\">-d<\/span> <span class=\"s1\">'{\"query\": \"{ getUsers { name age } }\"}'<\/span> <span class=\"se\">\\<\/span>\r\n       https:\/\/<span class=\"k\">**************************<\/span>.appsync-api.ap-northeast-1.amazonaws.com\/graphql | jq <span class=\"nb\">.<\/span> \r\n<span class=\"o\">{<\/span>\r\n  <span class=\"s2\">\"data\"<\/span>: <span class=\"o\">{<\/span>\r\n    <span class=\"s2\">\"getUsers\"<\/span>: <span class=\"o\">[<\/span>\r\n      <span class=\"o\">{<\/span>\r\n        <span class=\"s2\">\"name\"<\/span>: <span class=\"s2\">\"TestUser1\"<\/span>,\r\n        <span class=\"s2\">\"age\"<\/span>: 20\r\n      <span class=\"o\">}<\/span>,\r\n      <span class=\"o\">{<\/span>\r\n        <span class=\"s2\">\"name\"<\/span>: <span class=\"s2\">\"TestUser2\"<\/span>,\r\n        <span class=\"s2\">\"age\"<\/span>: 30\r\n      <span class=\"o\">}<\/span>\r\n    <span class=\"o\">]<\/span>\r\n  <span class=\"o\">}<\/span>\r\n<span class=\"o\">}<\/span>\r\n<\/code><\/pre>\n<p>\u53e6\u5916\uff0c\u8fd8\u80fd\u786e\u8ba4\u6570\u636e\u5df2\u4fdd\u5b58\u5728DynamoDB\u8868\u4e2d\u3002<\/p>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d837d913a08637a6b38b0\/41-0.png\" alt=\"SnapCrab_NoName_2021-10-3_17-33-44_No-00.png\" \/><\/div>\n<h1>\u603b\u7ed3<\/h1>\n<p>\u6211\u5728\u9019\u88e1\u4f7f\u7528AWS CDK Python\u4f86\u5b9a\u7fa9\u4e26\u90e8\u7f72\u4e86\u4e00\u500b\u7c21\u55ae\u7684AppSync API\u3002\u540c\u6642\uff0c\u6211\u4e5f\u78ba\u8a8d\u4e86\u4f7f\u7528\u7aef\u9ede\u9032\u884c\u7684\u64cd\u4f5c\u3002\u57fa\u672c\u4e0a\uff0c\u5982\u679c\u57fa\u65bcAWS Management Console\uff0c\u5b83\u63d0\u4f9b\u4e86\u4e00\u4e9b\u5e38\u7528\u7684\u6a21\u677f\u81ea\u52d5\u751f\u6210\u529f\u80fd\uff0c\u751a\u81f3\u53ef\u4ee5\u5f9e\u6a21\u5f0f\u5b9a\u7fa9\u4e2d\u81ea\u52d5\u751f\u6210\u6578\u64da\u6e90\u548c\u89e3\u6790\u5668\u7b49\u529f\u80fd\u3002\u9019\u6a23\uff0c\u6211\u53ef\u4ee5\u5728\u63a7\u5236\u53f0\u4e0a\u8f15\u9b06\u624b\u52d5\u5275\u5efa\u8cc7\u6e90\uff0c\u540c\u6642\u5c07\u5fc5\u8981\u7684\u90e8\u5206\u5207\u5272\u4e26\u8f49\u79fb\u5230AWS CDK\u4e2d\uff0c\u4f7f\u5de5\u4f5c\u66f4\u9806\u5229\u9032\u884c\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u9996\u5148 \u6211\u5728\u4ee5\u4e0b\u6587\u7ae0\u4e2d\u7814\u7a76\u4e86\u4f7f\u7528 AWS CDK Python \u8fdb\u884c\u90e8\u7f72\u7684\u65b9\u6cd5\u3002\u672c\u6b21\u8bb0\u5f55\u4e86\u4f7f\u7528 AWS CDK  [&hellip;]<\/p>\n","protected":false},"author":5,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-48231","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.5 (Yoast SEO v21.5) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>\u4f7f\u7528AWS CDK Python\u6784\u5efaAWS AppSync API - Blog - Silicon Cloud<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, 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