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  • Pipy 文档
  • Introduction
    • 概述
    • 概念
  • Getting Started
    • 构建和安装
    • 快速入门
    • 获取帮助
  • Release
    • 发布历史
      • 0.10.0-1
      • 0.22.0-31
      • 0.30.0
      • 0.50.0
  • Tutorial
    • 01 你好
    • 02 回显
    • 03 代理
    • 04 路由
    • 05 负载均衡
    • 06 配置
    • 07 插件
  • Operating
    • 开发控制台
    • CLI
    • Pipy Repo
      • 介绍
      • 快速开始
      • 演示
      • REST API
  • Reference
    • API
      • Configuration
        • acceptHTTPTunnel()
        • acceptProxyProtocol()
        • acceptSOCKS()
        • acceptTLS()
        • admin()
        • branch()
        • branchMessage()
        • branchMessageStart()
        • chain()
        • compress()
        • compressHTTP()
        • connect()
        • connectHTTPTunnel()
        • connectProxyProtocol()
        • connectSOCKS()
        • connectTLS()
        • decodeBGP()
        • decodeDubbo()
        • decodeHTTPRequest()
        • decodeHTTPResponse()
        • decodeMQTT()
        • decodeMultipart()
        • decodeRESP()
        • decodeThrift()
        • decodeWebSocket()
        • decompress()
        • decompressHTTP()
        • deframe()
        • demux()
        • demuxHTTP()
        • detectProtocol()
        • dummy()
        • dump()
        • encodeBGP()
        • encodeDubbo()
        • encodeHTTPRequest()
        • encodeHTTPResponse()
        • encodeMQTT()
        • encodeRESP()
        • encodeThrift()
        • encodeWebSocket()
        • exec()
        • exit()
        • export()
        • fork()
        • handleData()
        • handleMessage()
        • handleMessageBody()
        • handleMessageEnd()
        • handleMessageStart()
        • handleStreamEnd()
        • handleStreamStart()
        • handleTLSClientHello()
        • import()
        • insert()
        • link()
        • listen()
        • loop()
        • mux()
        • muxHTTP()
        • onEnd()
        • onStart()
        • pack()
        • pipeline()
        • print()
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        • replaceData()
        • replaceMessage()
        • replaceMessageBody()
        • replaceMessageEnd()
        • replaceMessageStart()
        • replaceStreamEnd()
        • replaceStreamStart()
        • replay()
        • serveHTTP()
        • split()
        • task()
        • tee()
        • throttleConcurrency()
        • throttleDataRate()
        • throttleMessageRate()
        • to()
        • use()
        • wait()
        • watch()
      • Data
        • from()
        • Data()
        • push()
        • shift()
        • shiftTo()
        • shiftWhile()
        • size
        • toArray()
      • Hessian
        • decode()
        • encode()
      • JSON
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        • encode()
        • parse()
        • stringify()
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        • body
        • head
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        • tail
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        • payload
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        • first
        • hostmask
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        • next()
        • size
        • version
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        • searchParams
        • username
      • URLSearchParams
        • get()
        • getAll()
        • URLSearchParams()
        • set()
        • toObject()
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        • Node
          • attributes
          • children
          • name
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        • decode()
        • encode()
        • parse()
        • stringify()
      • algo
        • Cache
          • clear()
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          • add()
          • HashingLoadBalancer()
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          • LeastWorkLoadBalancer()
          • next()
          • set()
        • LoadBalancer
          • allocate()
          • LoadBalancer()
          • provision()
          • schedule()
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          • free()
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          • consume()
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          • produce()
          • reset()
        • RoundRobinLoadBalancer
          • RoundRobinLoadBalancer()
          • next()
          • set()
        • URLRouter
          • add()
          • find()
          • URLRouter()
        • hash()
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      • console
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      • crypto
        • Certificate
          • issuer
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          • final()
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          • update()
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          • final()
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          • update()
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          • digest()
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          • isValid
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          • header
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          • update()
        • Verify
          • Verify()
          • update()
          • verify()
      • http
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          • log()
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          • toFile()
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          • toStderr()
          • toStdout()
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        • TextLogger
          • log()
          • TextLogger()
          • toFile()
          • toHTTP()
          • toStderr()
          • toStdout()
          • toSyslog()
      • os
        • env
        • readDir()
        • readFile()
        • stat()
        • unlink()
        • writeFile()
      • pipy()
        • exit()
        • load()
        • restart()
        • solve()
      • stats
        • Counter
          • decrease()
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          • withLabels()
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          • set()
          • withLabels()
          • zero()
        • Histogram
          • Histogram()
          • observe()
          • withLabels()
          • zero()

    Configuration.import()

    Description

    Imports context variables defined and exported from other modules.

    In PipyJS, context variables can be defined in two ways. One way is by pipy(), where the context variables are only visible to script in the same file. The other way is by using export(), where the context variables are not only visible to the file where they are defined, but also to other files that imported them with import().

    The module that imports a context variable from another module doesn't need to know what file that variable is defined in. Instead, the module can refer to the variable by its name plus the namespace under which the variable is exported. The one and only argument to import() is an object of key-value pairs, where keys are the variable names and values are the namespaces where each variable can be found.

    After a context variable is imported to a module, it can be used as if it'd been defined in the current file by pipy(). Any changes to that variable are also visible to the original file that exports it, as well as other modules that have imported it.

    As a convention, exported variables are recommended to have two underscores as prefix, such as __targetFound.

    Syntax

    pipy()
    .import({
    contextVariable1: namespace1,
    contextVariable2: namespace2,
    contextVariable3: namespace3,
    // ...
    })

    Parameters

    import(variables)

    variables

    An object containing key-value pairs of context variable names and their namespaces.

    Return Value

    The same Configuration object.

    Example

    pipy()
    .import({
    // global variables defined in other modules under namespace 'routing-stuff'
    __service: 'routing-stuff',
    __target: 'routing-stuff',
    })

    See Also


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