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https://github.com/hyperledger/fabric-samples.git
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b2de360e1c
* REST api added for asset transfer in Golang Signed-off-by: Basil K Y <techiebasil@gmail.com> * add go.sum to git Signed-off-by: Basil K Y <techiebasil@gmail.com> * fix golint error Signed-off-by: Basil K Y <techiebasil@gmail.com> Signed-off-by: Basil K Y <techiebasil@gmail.com>
40 lines
1.2 KiB
Go
40 lines
1.2 KiB
Go
package web
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import (
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"fmt"
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"net/http"
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"github.com/hyperledger/fabric-gateway/pkg/client"
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)
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// Invoke handles chaincode invoke requests.
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func (setup *OrgSetup) Invoke(w http.ResponseWriter, r *http.Request) {
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fmt.Println("Received Invoke request")
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if err := r.ParseForm(); err != nil {
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fmt.Fprintf(w, "ParseForm() err: %s", err)
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return
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}
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chainCodeName := r.FormValue("chaincodeid")
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channelID := r.FormValue("channelid")
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function := r.FormValue("function")
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args := r.Form["args"]
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fmt.Printf("channel: %s, chaincode: %s, function: %s, args: %s\n", channelID, chainCodeName, function, args)
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network := setup.Gateway.GetNetwork(channelID)
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contract := network.GetContract(chainCodeName)
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txn_proposal, err := contract.NewProposal(function, client.WithArguments(args...))
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if err != nil {
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fmt.Fprintf(w, "Error creating txn proposal: %s", err)
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return
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}
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txn_endorsed, err := txn_proposal.Endorse()
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if err != nil {
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fmt.Fprintf(w, "Error endorsing txn: %s", err)
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return
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}
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txn_committed, err := txn_endorsed.Submit()
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if err != nil {
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fmt.Fprintf(w, "Error submitting transaction: %s", err)
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return
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}
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fmt.Fprintf(w, "Transaction ID : %s Response: %s", txn_committed.TransactionID(), txn_endorsed.Result())
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}
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