3--Postman--变量（environment&global）

(1) Environment

clear an environment variable:

pm.environment.unset("variable_key")--recommend

postman.clearEnvironmentVariable(variableName)

postman.clearEnvironmentVariables()

 

get an environment variable:

pm.environment.get("variable_key")--recommend

postman.getEnvironmentVariable(variableName)

 

set an environment variable:

pm.environment.set("variable_key", "variable_value")--recommend

postman.setEnvironmentVariable(variableName, variableValue)--string

 

(2) Global variables

 

clear a global varibale:

pm.globals.unset("variable_key")

postman.clearGlobalVariable(variableName)

postman.clearGlobalVariables()

 

set a global variable:

pm.globals.set("variable_key", "variable_value");

postman.setGlobalVariable(variableName, variableValue)

 

get a global variable:

pm.globals.get("variable_key")

postman.getGlobalVariable(variableName)

 

(3) Json & string 

JSON.parse()【从一个字符串中解析出json对象】

例子：

//定义一个字符串

var data='{"name":"goatling"}'

//解析对象

JSON.parse(data)

结果是：

name:"goatling"

JSON.stringify()【从一个对象中解析出字符串】

var data={name:'goatling'}

JSON.stringify(data)

结果是：

'{"name":"goatling"}'

 

Getting an environment variable (whose value is a stringified object)：Json

Setting a nested object as an environment variable：String

 

(4) Get a variable

This function searches for the variable across globals and the active environment.

pm.variables.get("variable_key");

 

(5) Dynamic variables

 

Note that dynamic variables cannot be used in the Sandbox. You can only use them in the {{..}} format in the request URL / headers / body.