05_Modified Variables Propagation in GET Request Captured in Try Catch
Modified Variables Propagation in GET Request Captured in Try Catch
The workflow sends a GET request inside of a Try & Catch construction. The flow variable totalItems containing the total number of books available on Google Books for all search terms is created inside the Try & Catch construction. For the case when the GET Request fails, a Custom message flow variable is created in the alternative branch.
With propagating the variables option, either totalItems or the Custom message flow variable is exported by the Try&Catch construction, depending on which branch was active.
Nodes
- Inject Variables (Data)4 ×
- Catch Errors (Data Ports)2 ×
- GET Request2 ×
- JSON Path2 ×
- Math Formula2 ×
- Show all 9 nodes
Extensions
- FeatureKNIME Base nodes
- FeatureKNIME JSON-Processing
- FeatureKNIME Math Expression (JEP)
- FeatureKNIME REST Client Extension
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