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You must pass the Application Key with every HTTP request. You do this by setting the HTTP header with the value of the key assigned by Betfair.
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X-Application: "APP_KEY_ASSIGNED" |
You can create an Application Key for your Betfair account using the createDeveloperAppKeys operation. Please see the API reference guide for details of this operation.
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Please note: the X-Application header is not required when using the createDeveloperAppKeys or the getDeveloperAppKeys service.