Forum Discussion

cike's avatar
cike
Champion
11 years ago

NonStringException while making a REST API call

Hi,   within a custom component I make a REST API call to get all recent threads of my community. From this result I read the author informationen for every thread and make a second REST API call t...
  • nathan's avatar
    nathan
    11 years ago

    That's the sort of error message you get when you try to reference a property of an object that doesn't exist, or isn't directly convertible to a string (e.g. another object).

     

    My guess is that URL property of author.ranking.display.right_image is not set. You can test this with code like this:

     <#if author.ranking.display.right_image?? && author.ranking.display.right_image.url??>
   <#assign imageUrl = author.ranking.display.right_image.url />
   console.log("${imageUrl}");
 </#if>

    I would also recommend putting looking at the data you're working with by putting the appropriate REST API url in your browser.

nathan's avatar
nathan
Executive

That's the sort of error message you get when you try to reference a property of an object that doesn't exist, or isn't directly convertible to a string (e.g. another object).

 

My guess is that URL property of author.ranking.display.right_image is not set. You can test this with code like this:

 <#if author.ranking.display.right_image?? && author.ranking.display.right_image.url??>
   <#assign imageUrl = author.ranking.display.right_image.url />
   console.log("${imageUrl}");
 </#if>

I would also recommend putting looking at the data you're working with by putting the appropriate REST API url in your browser.

cike's avatar
cike
Champion
11 years ago

Hey @nathan,

 

thanks for reply. That was exactly the hint a looked for.

Now, I use the ?has_content operator to check the occurence and the content of my nodes and attributes.

 

Finally, everything works well. :smileyhappy:

 

Best regards,

Christian