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github.com/maxmind/mmdbwriter @v1.2.0
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543 edges
19 files
⚖ MIT
108 documented · 51%
3 cross-repo links
● updated 4d agov1.2.0 · 2026-01-14★ 1731 open issues
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What it actually does AI analysis from the code graph — generated when you open this
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README
Go MaxMind DB Writer
This is a Go writer for the MaxMind DB format.
This is still a work in progress and does not support all of the features of the Perl writer. The API is subject to change.
Examples
See the examples folder for examples of how to use this library or our blog
post,
Enriching MMDB files with your own data using Go.
Copyright and License
This software is Copyright (c) 2020-2025 by MaxMind, Inc.
This is free software, licensed under the Apache License, Version 2.0 or the MIT License, at your option.
Extension points exported contracts — how you extend this code
KeyGenerator (Interface)
KeyGenerator generates a unique key for record values being inserted into the Tree. This is used for deduplicating the v [1 …
data_key.go
DataType (Interface)
DataType represents a MaxMind DB data type.
mmdbtype/types.go
Func (FuncType)
Func is a function that returns the data type to be inserted into an mmdbwriter.Tree using some conflict resolution stra
inserter/inserter.go
FuncGenerator (FuncType)
FuncGenerator is a function that generates an Func given a value.
inserter/inserter.go
browse all types & interfaces →
Core symbols most depended-on inside this repo
↓ 12 filesDataType
DataType represents a MaxMind DB data type.
mmdbtype/types.go
↓ 4 filesnewKeyWriterdata_key.go
↓ 3 filesTreeTree represents an MaxMind DB search tree.
tree.go
↓ 3 filesdataMapdataMap is used to deduplicate data inserted into the tree to reduce memory usage using keys generated by keyWriter.
data_map.go
↓ 3 filesNewNew creates a new Tree.
tree.go
↓ 3 filesnewDataMapdata_map.go
Shape
Languages
Go100%
Modules by API surface
mmdbtype/types.go107 symbols
tree.go21 symbols
mmdbtype/types_test.go18 symbols
node.go10 symbols
tree_test.go8 symbols
inserter/inserter.go7 symbols
errors.go6 symbols
data_map.go6 symbols
data_key.go6 symbols
mmdbtype/unmarshaler.go5 symbols
data_section.go5 symbols
inserter/inserter_test.go4 symbols
Used by 3 indexed graphs manifest dependencies, hub-wide
For agents
$ claude mcp add mmdbwriter \
-- python -m otcore.mcp_server <graph>