Go go.mod file reference Example
A go.mod file includes directives as shown in the following example. These are described elsewhere in this topic.
module example.com/mymodule

go 1.14

require (
    example.com/othermodule v1.2.3
    example.com/thismodule v1.2.3
    example.com/thatmodule v1.2.3
)

replace example.com/thatmodule => ../thatmodule
exclude example.com/thismodule v1.3.0
Go go.mod file reference replace Notes
Note that a replace directive alone does not add a module to the module graph. A require directive that refers to a replaced module version is also needed, either in the main module’s go.mod file or a dependency’s go.mod file. If you don’t have a specific version to replace, you can use a fake version, as in the example below. Note that this will break modules that depend on your module, since replace directives are only applied in the main module.
require example.com/mod v0.0.0-replace

replace example.com/mod v0.0.0-replace => ./mod
Go go.mod file reference
Go generates a go.mod file when you run the go mod init command. The following example creates a go.mod file, setting the module’s module path to example/mymodule:
$ go mod init example/mymodule
Go go.mod file reference exclude Notes
You can use the go mod edit command to exclude a module, as in the following example.
go mod edit -exclude=example.com/theirmodule@v1.3.0
Go go.mod file reference module Notes
For example, if you’re developing in a stringtools directory, your temporary module path might be /stringtools, as in the following example, where company-name is your company’s name:
go mod init <company-name>/stringtools
Go go.mod file reference replace Examples
In the following example, any version of example.com/othermodule is replaced with the specified fork of its code.
require example.com/othermodule v1.2.3

replace example.com/othermodule => example.com/myfork/othermodule v1.2.3-fixed
Go go.mod file reference module Examples
The following examples substitute example.com for a repository domain from which the module could be downloaded.
module example.com/mymodule
Go go.mod file reference replace Examples
The following example specifies that version v1.2.3 should be used instead of any other version of the module.
require example.com/othermodule v1.2.2

replace example.com/othermodule => example.com/othermodule v1.2.3
Go go.mod file reference replace Examples
The following example replaces module version v1.2.5 with version v1.2.3 of the same module.
replace example.com/othermodule v1.2.5 => example.com/othermodule v1.2.3
Go go.mod file reference replace Examples
The following example specifies that a local directory should be used as a replacement for all versions of the module.
require example.com/othermodule v1.2.3

replace example.com/othermodule => ../othermodule

Recommend

Go go.mod file reference

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Go Module release and versioning workflow Publishing breaking API changes

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Go Contribution Guide Miscellaneous topics Sending multiple dependent changes

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Go Contribution Guide Miscellaneous topics Reviewing code by others

Go Contribution Guide Miscellaneous topics Synchronize your client

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Go Contribution Guide Sending a change via Gerrit Step 5: Revise changes after a review

Go Contribution Guide Sending a change via Gerrit Step 4: Send changes for review

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Go Contribution Guide Sending a change via Gerrit Step 1: Clone the source code

Go Contribution Guide Sending a change via Gerrit Overview

Go Contribution Guide Becoming a contributor Step 4: Install the git-codereview command

Contribution Guide Becoming a contributor Step 0: Select a Google Account

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Go Diagnostics Debugging

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How to Write Go Code Your first program Importing packages from remote modules

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The Go Programming Language Specification System considerations Size and alignment guarantees

The Go Programming Language Specification System considerations Package unsafe

The Go Programming Language Specification Run-time panics

The Go Programming Language Specification Errors

The Go Programming Language Specification Program initialization and execution Program execution

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The Go Programming Language Specification Program initialization and execution The zero value

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