When an HTML POST/GET/PATCH/DELETE message is posted to an Azure Mobile Service Table, the message can be intercepted and modified. Also the response can also be intercepted and modified. This blog outlines how to do this.
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C:\GIT\CEJSON\JSONParser.Desktop\Debug>JSONParser DELETE 24
C:\JSONParser.Compact2013>JSONParser PATCH 39 Value 55
C:\JSONParser.Compact2013>JSONParser POST Temperature 78
Delete and Update are now available for CEJSON. This means that the 4 CRUD primitives are now available.
Now available at https://cejson.codeplex.com can Post and Get Telemetry data to Azure Mobile Service.
In the previous blog in this series, using Flash for non-volatile program data was covered. One aspect of this was the F( ) macro that enables Serial.print/println strings to be accessed from Flash where the program is stored. That is, they do not consume RAM space allowing for more volatile programming space. This blog compares using and not using the F( ) macro. In the Telemetry sketch this allows for nearly double the number of name-value pairs
In the quest to reduce RAM usage with a RAM challenged Arduino device, this blog covers using permanent storage (Flash and EEPROM).
In Part 9 of this series, it was shown how to create a Version 1 table such that the id field is an auto-incremented integer which saves storage space on a small device. Version 1 tables don't automatically save a creation and modification date. This blog covers how to do it with a Script.