Can't Handle Symbol() Attribute On Error Object

[ki4jnq]

We attach Symbol() type attributes to our known error conditions in our Express application. When Raygun tries to serialize these attributes the following error is raised:

TypeError: Cannot convert a Symbol value to a string
    at toHumanString (/Users/myusername/Projects/myProjectName/node_modules/object-to-human-string/lib/index.js:29:63)
    at RaygunMessageBuilder.setErrorDetails (/Users/myusername/Projects/myProjectName/node_modules/raygun/lib/raygun.messageBuilder.js:54:15)
    at Raygun.raygun.send (/Users/myusername/Projects/myProjectName/node_modules/raygun/lib/raygun.js:98:14)
    at Raygun.raygun.expressHandler (/Users/myusername/Projects/myProjectName/node_modules/raygun/lib/raygun.js:144:16)
    at WebFrameworkShim.applySegment (/Users/myusername/Projects/myProjectName/node_modules/newrelic/lib/shim/shim.js:1332:17)
    at _applyRecorderSegment (/Users/myusername/Projects/myProjectName/node_modules/newrelic/lib/shim/shim.js:949:20)
    at _doRecord (/Users/myusername/Projects/myProjectName/node_modules/newrelic/lib/shim/shim.js:928:17)
    at /Users/myusername/Projects/myProjectName/node_modules/newrelic/lib/shim/shim.js:913:24
    at Layer.handle_error (/Users/myusername/Projects/myProjectName/node_modules/express/lib/router/layer.js:71:5)
    at trim_prefix (/Users/myusername/Projects/myProjectName/node_modules/express/lib/router/index.js:315:13)

It appears that object-to-human-string tries to concatenate strings using the + operator, which specifically throws the above type error. It seems to me that attaching Symbol() metadata to error objects should not cause an error to be thrown.

Thanks for a great tool!

[UberMouse]

Hi @ki4jnq,

We will see what we can do to actually fix this and get back to you. But for now, a workaround might be to set useHumanStringForObject to false in the options object passed to init.

Regards,
Taylor