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40 lines
1.6 KiB
Markdown
40 lines
1.6 KiB
Markdown
---
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title: Script
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---
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<!--
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#
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# Licensed to the Apache Software Foundation (ASF) under one or more
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# contributor license agreements. See the NOTICE file distributed with
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# this work for additional information regarding copyright ownership.
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# The ASF licenses this file to You under the Apache License, Version 2.0
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# (the "License"); you may not use this file except in compliance with
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# the License. You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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#
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-->
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`Script` represents a script that will be executed during the `HTTP` request/response life cycle.
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The `Script` configuration can be directly bound to the `Route`.
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`Script` and `Plugin` are mutually exclusive, and `Script` is executed first. This means that after configuring `Script`, the `Plugin` configured on `Route` will not be executed.
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In theory, you can write arbitrary Lua code in `Script`, or you can directly call existing plugins to reuse existing code.
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`Script` also has the concept of execution phase, supporting `access`, `header_filter`, `body_filter` and `log` phase. The system will automatically execute the code of the corresponding phase in the `Script` script in the corresponding phase.
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```json
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{
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...
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"script": "local _M = {} \n function _M.access(api_ctx) \n ngx.log(ngx.INFO,\"hit access phase\") \n end \nreturn _M"
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}
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```
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