how to create environment variable in postman code example
Example 1: how to define variables in api
-Use pm.globals to define a global variable:
pm.globals.set("variable_key", "variable_value");
-Use pm.collectionVariables to
define a collection variable:
pm.collectionVariables.set("variable_key", "variable_value");
-Use pm.environment to define an environment
variable (in the currently selected environment):
pm.environment.set("variable_key", "variable_value");
-You can use unset to remove a variable:
pm.environment.unset("variable_key");
-Defining local variables
Local variables are temporary values you set
in your request scripts using the following syntax:
pm.variables.set("variable_key", "variable_value");
Example 2: environment variable api
Environment Variable , a variable that accessible
only when the environment is active
Usually used for an app with multiple environment ,
we can use env variable to store variable with same name
and different value to store environment specific data
for example :
xxxNamed app has 3 environments with different
URL and Crendentials
But all endpoints are exactly the same no matter what
environment you work on
so we can create 3 environment called
QA1 , QA2 , QA3 and run same set of request
by selecting different environment.
Only one environment can be active at a time.
Example 3: postman environment variables in body
{ "customer_id" : "{{cust_id}}" }
Example 4: postman environment variables
pm.environment.set("variable_key", "variable_value");
Example 5: collection variable api
Only accessible within the same collection and
can not be accessed anywhere else
COLLECTION variables are available throughout
the requests in a collection and are independent
of environments, so do not change based on the selected environment.
I use collection variables when
I use single environment like url details.
We can refer to the variable by using {{}}(double curly brace)
and it can be used anywhere