10/11/2023 0 Comments Show postman consoleIn this case, however, you can choose to use collection variables too but environment variables give you different access levels when working as a team. Even if you have one server / API only, it might still be useful to use environment variables as it would keep the variables away from global namespace otherwise it can get crowded. If your collection needs to run against different servers, such as localhost, test server, pre-prod and prod, you can easily switch environments. Tip: If you want to clear all the variables, you can use pm.globals.clear() EnvironmentĮnvironment variables have narrower scope than global variables. Once you understand how your API is supposed to work, remove any variables as soon as you don’t need them : pm.globals.unset(‘myVariable’) ![]() If you want to get something running and don’t want to worry about which variable you should use at the moment, if you are exploring an API for example, you can go for global variables initially. ![]() By clicking edit you can create a new global variable by entering a name and an initial value. When you click on the eye icon next to environment dropdown, a context window will be opened with details around the current global variables. These variables are general purpose variables and, as a best practise, should mostly be avoided: otherwise, you’ll get a crowded global space and you won’t know which variable belongs to which API. Global variables are available to all requests available in the Postman console regardless of which collection they belong to. All variables defined in the current iteration take precedence over the variables defined in the current environment, which overrides the ones defined in the global scope. Using variables within specific scopes allows you to reuse values efficiently. Scope is nothing but the accessibility of a variable. Similar to working with variables in other programming languages, in Postman, all variables conform to a specific hierarchy. The type of variables in Postman might be confusing as there are quite a few of them, such as environment variables, collection variables, data variables etc. Variables allow you to store and reuse values in your requests and scripts. ![]() The variable’s name represents what information the variable contains. A variable is a symbolic name for - or a reference to - information.
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