ERROR: API error 1 (datastore_v3: BAD_REQUEST): Property {} is too long. Maximum length is 500.

[Matthew Ridley]

I have the following struct:

 

type Article struct {
    Key int64           `datastore:"-"`
Title string
Text string
Author string
        Tags string
Posted time.Time
}

When I try to store any record with Text > 500 characters I get the error:

ERROR: API error 1 (datastore_v3: BAD_REQUEST): Property Text is too long. Maximum length is 500.

When I look here:

https://cloud.google.com/appengine/docs/go/datastore/entities

It looks like I can store up to 1 MB of text. So not sure why I am getting this error.

[Patrick Costello]

Hi Matthew,

This is a discuss list for users of the ndb python library. I would recommend directing questions about go to either the App Engine issue tracker (https://code.google.com/p/googleappengine/issues/list) or to stackoverflow with the [gae-datastore] and [go] tags.

In this particular case, you can only put strings up to 1MB if you mark that the property is not indexable. (Indexed strings are limited to 1500 bytes -- previously 500 characters). It looks like you are getting this error from a development stub that has not been updated to show the correct length of 1500 -- if you encounter the message about a max length of 500 after updating, please file a bug on the App Engine issue tracker).

I'm not very familiar with go, but I believe you can mark Text as unindexed by writing:

type Article struct {
        Key int64           `datastore:"-"`
Title string

Text string         `datastore:",noindex"`

Author string
        Tags string
Posted time.Time
}

- Patrick

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[Matthew Ridley]

Sorry about that, looks like when I clicked on a group to open a topic, it defaulted to this rather than the go one. However your answer helped. I was outdated and needed to remove the index. Both changes fixed my issue.

Thanks!

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