Add name: for specifing database name of document

[k1LoW]

No description provided.

[codecov]

Codecov Report

Merging #180 into master will decrease coverage by 0.92%.
The diff coverage is 100%.

@@            Coverage Diff             @@
##           master     #180      +/-   ##
==========================================
- Coverage   68.72%   67.79%   -0.93%     
==========================================
  Files          16       16              
  Lines        3018     3021       +3     
==========================================
- Hits         2074     2048      -26     
- Misses        731      765      +34     
+ Partials      213      208       -5

Impacted Files	Coverage Δ
config/config.go	47.68% <100%> (+0.56%)	⬆️
datasource/datasource.go	16.75% <0%> (-15.19%)	⬇️

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