问题
I'm trying to use Google's Custom Search API through the Google API Ruby client. I have setup my API key through the Google API console, and have also created my CSE. Based on the documentation, it seems that, as long as I provide an API key (which I am doing), I shouldn't need an OAuth2 authentication token to call the list method. However, when I try to execute the code below, I get the following error:
ArgumentError: Missing access token.
What am I missing? Here's my code:
# create client
client = Google::APIClient.new
# Fetch discovery doc
search = client.discovered_api('custom search')
# Call list method
response = client.execute(
search.cse.list, 'key' => '<my API key>', 'cx' => '<my CSE id>', 'alt' => 'json', 'q' => 'hello world'
)
回答1:
I believe this is in fact a bug in the client (it's in alpha). After fiddling with it a little more, I've found a workaround:
just after creating the client object, assign it a "dummy" access token:
client.authorization.access_token = '123'
then you can call the search.cse.list method without getting the 'ArgumentError: Missing access token.' error.
回答2:
If you're just after using Google CSE with ruby, try google-cse. I just built the gem, although I've been using it for a while privately. Much easier to work with than the alpha client
回答3:
I found out that adding client.retries = 3 to my code solves this problem.
回答4:
With the current version of the gem (0.7.1), you need to set the authorization to nil in addition to setting the key:
require 'google/api_client'
client = Google::APIClient.new
client.key = ENV['GOOGLE_API_KEY']
client.authorization = nil
client.execute ...
来源：https://stackoverflow.com/questions/8013648/why-does-googles-custom-search-api-say-that-im-missing-an-access-token-when-u