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The Query tab allows you to specify the GraphQL query for the message that will be sent.

You can constrain your GraphQL message to a schema definition by linking it to an SDL. To build a GraphQL message constrained to an SDL:

1. Enter the URL or location of the SDL in the SDL field. You can also click Browse to navigate to an SDL file.
2. Enable Constrain to SDL.
3. Choose Form GraphQL from the Input mode menu. See Form GraphQL for more information about building a GraphQL message that's constrained to an SDL.
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   • If the SDL is updated, return to this screen and click Refresh SDL to update the constraints for the GraphQL message.

Before you specify the query, be sure to select a media type supported by your GraphQL service from the Content-Type menu. The request structure will be transformed at runtime based on this selection. The available options are:

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