Hi, just finished implementing this stuff. To search a AND b use 'q=A+B'. Here are a few examples:
> curl -XGET -G 'api.datanews.io/v1/news' -d 'apiKey=API_KEY' --data-urlencode 'q="Europe throws new rule book at Google, tech giants to loosen market grip"'
> curl -XGET -G 'api.datanews.io/v1/news' -d 'apiKey=API_KEY' --data-urlencode 'q=google+facebook+amazon'
Supported operators:
+ AND,
| OR,
- NOT,
() parentheses for grouping,
"" exact match
EDIT: examples