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Forum Discussion
Error: property_groups: expected list, got string
I am trying to add property groups to a file with
https://content.dropboxapi.com/2/files/upload
and I am getting an error "HTTP header "Dropbox-API-Arg": property_groups: expected list, got string". How is my property groups a string? What am I doing wrong?
$meta = array(
"name" => "this is something"
);
$fields = array(
"path" => "/ba.txt",
"autorename" => false,
"mode" => "overwrite",
"mute" => false,
"strict_conflict" => false,
"property_groups" => json_encode($meta)
);
$headers = array(
'Authorization: Bearer '.$auth_token,
'Content-Type: application/octet-stream',
'Dropbox-API-Arg: '.json_encode( $fields )
);
toki4004 wrote:..., and now I want to view a folder list with items + see their properties. I get this error:
- "Error in call to API function "files/list_folder": request body: include_property_groups.filter_some: expected list, got string".
- Here is my code below. What format is expecting for "include_property_group"?
...
Even when you have one property group it should be a list with one entry, not just a single string, as you have passed. If you take a look on 'filter_some', you will see that expected type is list, not something else (list of ids, not just one id itself - even when it's alone). Wrap your id' string with array.
Hi toki4004,
It's a good idea to prototype API call when you are not sure about something. 😉 So you can easy find out all differences and what's wrong. In particular (for /2/files/upload) you can take a look here. Click on "Show Code" to see how the call look like. Most valuable for you may be the "HTTP request" form of view (PHP is not supported).
Good luck.
- Greg-DB
Dropbox Staff
toki4004 As Здравко linked to, the API v2 Explorer is a good tool for prototyping and inspecting how API calls should be formatted.
I see in your code you're using json_encode on the property_groups value directly. The value is supposed to be a list, but note that json_encode itself returns a string, you're actually sending that parameter value as a string instead of the expected list. It looks like you could do so by removing that first json_encode call and just supplying the $meta variable itself.
Thanks, I am a newbie, wondering if you could help:
From the explorer page, I get this error
... "Dropbox-API-Arg": property_groups.template_id: '' must be at least 1 characters, got 0Is the template required? All I am trying to do is save a custom metadata snippet with the file.
I tried removing that first json_encode call and just supplying the $meta variable. Now I get the error:
"... property_groups: expected list, got builtins.dict"
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