CODEWITHSUNDEEP
etaggoogle-people-api
Rikki
Rikki

Reputation: 1239

Determining maximum length of ETag that can be returned by Google People API

Is there a definition of the length of the etag returned by the Google People API?

We store the etag returned and we recently started receiving etag values greater than the length of the database column that we had allocated. We modified the table to accommodate these new larger etags but it raised the question of what to make the maximum size of the column.

I am wondering if there is any documentation where Google define the length of the etag field or explain the mechanism they use to generate it?

On a related note, is there anywhere that would have forewarned us about this change? I've browsed the People API documentation and searched for release notes, but I do not see any mention of this changing.

Upvotes: 0

Views: 275

Answers (1)

Logan
Logan

Reputation: 2140

To answer your question what to make the maximum size of the column, there's really no way you can determine it, as an ETag can be of any length in theory so it would be best if you have a way to not set/limit the length. The method by which ETag values are generated is not specified. Typically, the ETag value is a hash of the content, a hash of the last modification timestamp, or just a revision number.

Refer to other links below for more information:

Upvotes: 1

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