embed.md

EMBED

Description of embedding source code in chaincode.

Table of Contents

• EMBED
  • Table of Contents
    • Prepare Chaincode for Embed
      • Correct Chaincode
      • Incorrect Chaincode
    • Embed Chaincode
  • Links

Prepare Chaincode for Embed

To include source code files in the chaincode, you need to organize the code so that all *.go files are in the same directory as the file with the main() function, or in lower-level directories. *.go files should not be in higher-level directories or in parallel directories (to access them, you need to go up to the parent directory).

Correct Chaincode

.
├── go.mod
├── go.sum
├── industrial_token
│   ├── buyback.go
│   ├── distribute.go
│   ├── metadata.go
│   ├── methods.go
│   ├── redeem.go
│   ├── token.go
│   └── transfer.go
└── main.go

Incorrect Chaincode

.
├── README.md
├── go.mod
├── go.sum
├── realizations
│   ├── fiat
│   │   └── fiat.go
│   └── rub
│       └── rub.go
├── token
│   ├── balances.go
│   ├── fiat.go
│   ├── fiat_test.go
│   ├── methods.go
│   ├── trading.go
│   └── trading_test.go
└── vendor.tar.gz

Embed Chaincode

To embed files in the chaincode, you need to add the section in the file with the main() function.

//go:embed go.mod go.sum *.go industrial_token/*.go
var f embed.FS

Files that should be included:

• go.mod
• go.sum
• *.go
• Go files from all child directories (folder1/*.go folder1/folder2/*go)

When creating the chaincode, pass the parameter f.

cc, err := core.NewChainCode(ft, "org0", nil, core.WithSrcFS(&f))

If you don't want to use embed.FS, you can create the chaincode in the old way.

cc, err := core.NewChainCode(ft, "org0", nil)

Or set embed.FS to nil.

cc, err := core.NewChainCode(ft, "org0", nil, core.WithSrcFS(nil))

Links

• None