#Postman graphql how to#
#Postman graphql code#
#Postman graphql download#

If you prefer this approach, select the Headers tab and then add the header key and associated value into that dialog, as shown above in callout (3a). The second way to add authorization credentials to a GraphQL request is to enter the information directly as headers in the HTTP request. The authorization token that is entered into the token textbox will be injected into the POST request when the request is executed. As a result of selecting Bearer Token, a pane appears into which you enter the authorization token as shown above in Figure 1, callout (4). In the example shown above at callout (3), the selected authorization type is Bearer Token. The first way is to select the Authorization tab from within the Postman query pane and select an authorization type from the resulting drop down. There are two ways to furnish security credentials to a GraphQL-based API through Postman. You can also use Postman to work with GraphQL APIs that are running on you local machine under localhost. Next you'll enter the URL of the GraphQL API you're working with, as shown above at callout (2). Thus, when configuring a GraphQL query using Postman you will need to select POST from HTTP method dropdown shown above in Figure 1 at callout (1). (See Figure 1 below)įigure 1: Postman's The query configuration screenĪll queries and mutations in GraphQL are executed using HTTP's POST method (also known as an HTTP 'verb'). You'll configure your GraphQL queries and mutations using this GUI. Otherwise you'll be brought to the main Postman GUI. Once installed, you'll be offered a features review dialog.

#Postman graphql download#

You can download Postman by going to its download page here. Setting Up Postman to Run GraphQL QueriesĪs mentioned previously, Postman is a standalone utility that allows developers to execute HTTP requests against the various resources and endpoints of an API.

#Postman graphql code#

You are welcome to use a running instance of the tutorial code to experiment with using GraphQL under Postman. The interactive tutorials have a working instance of a GraphQL API that's used to demonstrate the basics of the technology. The code I'm going to use to show examples of running GraphQL queries under Postman is from ProgrammableWeb's interactive GraphQL tutorial found here.

#Postman graphql how to#

I'm also going to show you how to use Postman to authenticate to a GraphQL API using Postman, to query variables and finally how to execute a mutation against a GraphQL API Endpoint. In this article I'm going to show you how to execute a simple GraphQL query against a GraphQL API using the new Postman feature. The latest version of Postman includes a beta feature that allows developers to execute queries and mutations written in GQL, (GraphQL Query Language), directly against a GraphQL API (for a detailed explanation of what GraphQL is and how it works, be sure to read ProgrammableWeb's s comprehensive Guide to GraphQL). Implementations of the specification are now available in a number of languages including Java. GraphQL is an API specification designed and used by Facebook.

Postman was originally released as an extension to the Chrome browser but is now deployed as a standalone application. Combined with its graphical User Interface, this core capability makes it an indispensable tool for making, saving, chaining and replaying ad hoc calls to HTTP (Web) based APIs. Postman is a utility that allows developers to execute HTTP requests against a given URL. ProgrammableWeb decided to take a closer look by reviewing the new feature.

With the most recent release of its namesake product, Postman is now capable of working with GraphQL-based APIs.