How To Fix REST_CORE_TEXTS018 - Empty variable name in URI template &

SAP Error Message - Details

• Message type: E = Error

• Message class: REST_CORE_TEXTS -

• Message number: 018

• Message text: Empty variable name in URI template &

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message REST_CORE_TEXTS018 - Empty variable name in URI template & ?

  The SAP error message REST_CORE_TEXTS018 indicates that there is an empty variable name in the URI template of a REST service. This typically occurs when the URI template is expected to contain variable placeholders (e.g., {variableName}) but one or more of these placeholders are not properly defined or are empty.
  Cause:
  
  Incorrect URI Template: The URI template may have been defined incorrectly, with one or more variable names missing or left empty.
  Configuration Issues: There may be issues in the configuration of the service or the way the parameters are being passed to the URI.
  Dynamic Variable Generation: If the variable names are generated dynamically, there may be a logic error that results in an empty variable name.
  
  Solution:
  
  
  Check URI Template: Review the URI template defined for the REST service. Ensure that all variable placeholders are correctly defined and that none are empty. For example, if your URI template looks like /api/resource/{id}, ensure that id is not empty.
  
  
  Validate Input Parameters: If the URI is constructed dynamically, validate the input parameters being used to generate the URI. Ensure that all required parameters are being passed and are not empty.
  
  
  Debugging: If you are using a development environment, enable debugging to trace the values being passed to the URI. This can help identify where the empty variable is being introduced.
  
  
  Documentation Review: Consult the SAP documentation for REST services to ensure that you are following the correct syntax and guidelines for defining URI templates.
  
  
  Error Handling: Implement error handling in your application to catch cases where variables might be empty before constructing the URI.
  
  
  Related Information:
  
  SAP Documentation: Refer to the official SAP documentation for RESTful services to understand the correct syntax for URI templates and variable definitions.
  SAP Community: Engage with the SAP Community forums to see if others have encountered similar issues and to find potential solutions or workarounds.
  Testing Tools: Use tools like Postman or SAP Gateway Client to test your REST service and see how the URI is being constructed and what parameters are being sent.
  
  By following these steps, you should be able to identify and resolve the issue causing the REST_CORE_TEXTS018 error.