A stone is a token that holds or represents digital asset for the purpose of transferring between persons and machines.
See Stone Doc for the stone specification.
go get github.com/stonedoc/stone
import (
Stone "github.com/stonedoc/stone"
)
func main(){
var privKey = "-----BEGIN RSA PRIVATE KEY-----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\nfiztPjnExA2AVEBIj4hDRE34sNFnBRTWyCHQqU2JPrkaeg==\n-----END RSA PRIVATE KEY-----"
var metaBlock = map[string]interface{}{
"created_at": 1457441770,
"id": "4ba3443b6157753fb678a593e5d7684c84d1b207",
"type": "currency",
}
// create new stone object. Pass a valid meta block.
stn, err := Stone.Create(metaBlock, privKey)
if err != nil {
panic(err)
}
}Given a JSON representation of a stone. A stone object can be loaded using the load() method. The JSON object must be a valid stone object. An error will be returned if stone validation is not passed.
import (
Stone "github.com/ellcrys/stone"
)
func main(){
var metaBlock = `{
"meta": {
"id": "61144c09f35f1fd6d75265ceaf5bc8757c3a46c3",
"created_at": 1457441779,
"type": "coupon"
}
}`
// load JSON stone
stn, err := Stone.Load(metaBlock)
if err != nil {
panic(err)
}
}This method will not sign or verifies the resulting stone object. Use Sign() and Verify() method.
All blocks (except the signatures block) must be signed before encoding to base64 string for transmission. This method signs a block and deposits the resulting signature in the signatures block.
import (
Stone "github.com/ellcrys/stone"
"fmt"
)
func main(){
var privKey = "-----BEGIN RSA PRIVATE KEY-----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\nfiztPjnExA2AVEBIj4hDRE34sNFnBRTWyCHQqU2JPrkaeg==\n-----END RSA PRIVATE KEY-----"
var metaBlock = `{
"meta": {
"id": "61144c09f35f1fd6d75265ceaf5bc8757c3a46c3",
"created_at": 1457441779,
"type": "coupon"
}
}`
// load JSON stone
stn, err := Stone.Load(metaBlock)
if err != nil {
panic(err)
}
// sign meta block
signature, err := stn.Sign("meta", privKey)
if err != nil {
panic(err)
}
fmt.Println(signature) // eyJhbGciOiJS.eyJjcmVhdGVkX2F0Ij.NyD4WN1ymdpgY032
}import (
Stone "github.com/ellcrys/stone"
"fmt"
)
func main(){
var privKey = "-----BEGIN RSA PRIVATE KEY-----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\nfiztPjnExA2AVEBIj4hDRE34sNFnBRTWyCHQqU2JPrkaeg==\n-----END RSA PRIVATE KEY-----"
var pubKey = "-----BEGIN PUBLIC KEY-----\nMIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDUAwSH1WJcV7I/sU4w54BNYFHw\ngvpxiXkmPDDkEjFL6+LKX46psEccT8ETR7enF42qQtV3iFrtLi3Rr5QtIPB2cjAS\noDvkQT7TlpsPG5SHJHqF+7iDdS25GMR9eoDtvB7TyBk0B1SjSOYIizzPfYgdFoIl\n/X82BCtQVL2xnsaaBwIDAQAB\n-----END PUBLIC KEY-----"
var metaBlock = `{
"meta": {
"id": "61144c09f35f1fd6d75265ceaf5bc8757c3a46c3",
"created_at": 1457441779,
"type": "coupon"
}
}`
// load JSON stone
stn, err := Stone.Load(metaBlock)
if err != nil {
panic(err)
}
// sign meta block
signature, err := stn.Sign("meta", privKey)
if err != nil {
panic(err)
}
fmt.Println(signature) // eyJhbGciOiJS.eyJjcmVhdGVkX2F0Ij.NyD4WN1ymdpgY032
// verify meta block signature
err = stn.Verify("meta", pubKey)
if err != nil {
panic(err)
}
}This method creates a base64 url string of the signatures block. The resulting string can be shared or transferred.
import (
Stone "github.com/ellcrys/stone"
"fmt"
)
func main(){
var privKey = "-----BEGIN RSA PRIVATE KEY-----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\nfiztPjnExA2AVEBIj4hDRE34sNFnBRTWyCHQqU2JPrkaeg==\n-----END RSA PRIVATE KEY-----"
var metaBlock = `{
"meta": {
"id": "61144c09f35f1fd6d75265ceaf5bc8757c3a46c3",
"created_at": 1457441779,
"type": "coupon"
}
}`
// load JSON stone
stn, err := Stone.Load(metaBlock)
if err != nil {
panic(err)
}
// sign meta block
_, err = stn.Sign("meta", privKey)
if err != nil {
panic(err)
}
encoding := stn.Encode()
fmt.Println(encoding) // eyJtZXRhIjoiZXlKaGJHY2lPaUpTVXpJMU5pS...
}A base64 url encoded stone can be decoded to the original stone object it was derived from.
import (
Stone "github.com/ellcrys/stone"
"fmt"
)
func main(){
var privKey = "-----BEGIN RSA PRIVATE KEY-----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\nfiztPjnExA2AVEBIj4hDRE34sNFnBRTWyCHQqU2JPrkaeg==\n-----END RSA PRIVATE KEY-----"
var metaBlock = `{
"meta": {
"id": "61144c09f35f1fd6d75265ceaf5bc8757c3a46c3",
"created_at": 1457441779,
"type": "coupon"
}
}`
// load JSON stone
stn, err := Stone.Load(metaBlock)
if err != nil {
panic(err)
}
// sign meta block
_, err = stn.Sign("meta", privKey)
if err != nil {
panic(err)
}
// encode stone object
enc := stn.Encode()
fmt.Println(enc) // eyJtZXRhIjoiZXlKaGJHY2lPaUpTVXpJMU5pS...
// decode
decodedStone, err := Stone.Decode(enc)
if err != nil {
panic(err)
}
fmt.Println(decodedStone)
}See GoDoc for full documentation