[FAB-11951] Interest-rate swap example for SBE

This is an example on how to represent and implement basic interest rate swap handling using fabric. It demonstrates the usage of state-based endorsement. Change-Id: I04e631299d95262e54e1532489766aa20477064c Signed-off-by: Matthias Neugschwandtner <eug@zurich.ibm.com> Signed-off-by: Alessandro Sorniotti <ale.linux@sopit.net> Signed-off-by: David Enyeart <enyeart@us.ibm.com>
2026-06-17 15:35:09 +00:00 · 2018-09-11 18:17:42 +02:00 · 2018-09-11 18:17:42 +02:00 · 5cd277fdc0
commit 5cd277fdc0
parent 9567985d29
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--- a/interest_rate_swaps/README.md
+++ b/interest_rate_swaps/README.md
@ -0,0 +1,176 @@
+# Interest-rate swaps
+
+This is a sample of how interest-rate swaps can be handled on a blockchain using
+fabric and state-based endorsement. [State-based endorsement](https://hyperledger-fabric.readthedocs.io/en/release-1.3/endorsement-policies.html#key-level-endorsement)
+is a new feature released in Hyperledger Fabric 1.3.
+
+An interest-rate swap is a financial swap traded over the counter. It is a
+contractual agreement between two parties, where two parties (A and B) exchange
+payments. The amount of individual payments is based on the principal amount of the
+swap and an interest rate. The interest rates of the two parties differ. In a
+typical scenario, one payment (A to B) is based on a fixed rate set in the
+contract. The other payment (B to A) is based on a floating rate. This rate is
+defined through a reference rate, such as LIBOR from LSE, and an offset to this
+rate.
+
+## Network
+
+We assume organizations of the following roles participate in our network:
+ * Parties that want to exchange payments
+ * Parties that provide reference rates
+ * Auditors that need to audit certain swaps
+
+The chaincode-level endorsement policy is set to require an endorsement from an
+auditor as well as an endorsement from any swap participant.
+
+## Data model
+We represent a swap on the ledger as a JSON with the following fields:
+ * `StartDate` and `EndDate` of the swap
+ * `PaymentInterval` - the time interval of the payments
+ * `PrincipalAmount` - the principal amount of the swap
+ * `FixedRate` - the fixed rate of the swap
+ * `FloatingRate` - the floating rate of the swap (offset to the reference rate)
+ * `ReferenceRate` - the key name of the KVS pair that holds the reference rate
+
+The key for the swap is a unique identifier combined with a common prefix `swap`
+that identifies swap entries in the KVS namespace. Upon creation the key-level
+endorsement policy for the swap is set to the participants of the swap and,
+potentially, an auditor.
+
+We represent the payment information as a single KVS entry per swap with the
+same unique identifier as the swap itself and a common prefix `payment` for payments.
+If payments are due, the entry states the amount due. Otherwise, it is "none".
+A payment information KVS entry has the same key-level endorsement policy
+set as its corresponding swap entry.
+
+We represent the reference rates as a KVS entry per rate with an identifier per
+rate and a common prefix for reference rates. The key-level endorsement policy
+for a reference rate entry is set to the provider of the corresponding reference
+rate, such as LSE for LIBOR.
+The reference rate could also be modeled via a separate chaincode, where the
+chaincode-level endorsement policies only allows reference rate providers to
+create keys.
+
+Taken together, here is an example of the KVS entries involved in a swap:
+```
+KEY          | VALUE
+-------------|-----------------------------------------------------
+swap1        | {StartDate: 2018-10-01, ..., ReferenceRate: "libor"}
+payment1     | "none"
+rr_libor     | 0.27
+```
+In this example, the swap with ID 1 is represented by the `swap1` and `payment1`
+KVS entries. The reference rate is set to `libor`, which will cause the chaincode
+to look up the `rr_libor` entry in the KVS to calculate the rate for the
+floating leg of the swap.
+
+## Chaincode
+The interest-rate swap chaincode provides the following API:
+ * `createSwap(swapID, swap_info, partyA, partyB)` - create a new swap with the
+   given identifier and swap parameters among the two parties specified. This
+   function creates the entry for the swap and the corresponding payment. It
+   also sets the key-level endorsement policies for both keys to the participants
+   to the swap. In case the swap's prinicpal amount exceeds a certain threshold,
+   it adds an auditor to the endorsement policy for the keys.
+ * `calculatePayment(swapID)` - calculate the net payment from party A to party
+   B and set the payment entry accordingly. If the payment information is negative,
+   the payment due flows from B to A. The payment information is calculated based
+   on the rates specified in the swap and the principal amount. If the payment
+   key is not "none", this function returns an error, indicating that a prior
+   payment has not been settled yet.
+ * `settlePayment(swapID)` - set the payment entry for the given swap ID to "none".
+   This function is supposed to be invoked after the two parties have settled the
+   payment off-chain.
+ * `setReferenceRate(rrID, value)` - set a given reference rate to a given value.
+ * `Init(auditor, threshold, rrProviders...)` - the chaincode namespace is initialized
+   with a threshold for the principal amount above which a designated auditor
+   needs to be involved as well as a list of reference rate providers and rate IDs.
+
+## Trust model
+The state-based endorsement policies used in this sample ensure the following
+trust model:
+ * All operations related to a specific swap need to be endorsed (at least) by
+   the participants to that swap. This includes both creation of a swap, as well
+   as calculating the payment information and agreeing that the payments have
+   been settled.
+ * Operations related to a reference rate need to be endorsed by the provider of
+   a reference rate.
+ * Under certain circumstances an auditor needs to endorse operations for a swap,
+   e.g., if it exceeds a threshold for the principal amount.
+
+The chaincode-level endorsement policy requires at least one potential swap
+participant and an auditor. This endorsement policy sets the trust relationship
+for creating a swap.
+
+## Sample network
+
+The `network` subdirectory contains scripts that will launch a sample network
+and run a swap transaction flow from creation to settlement.
+
+### Prerequesites
+
+The following prerequisites are needed to run this sample:
+* Fabric docker images. By default the `network/network.sh` script will look for
+  fabric images with the `latest` tag, this can be adapted with the `-i` command
+  line parameter of the script.
+* A local installation of `configtxgen` and `cryptogen` in the `PATH` environment,
+  or included in `fabric-samples/bin` directory.
+* Vendoring the chaincode. In the chaincode directory, run `govendor init` and
+  `govendor add +external` to vendor the shim from your local copy of fabric.
+
+### Bringing up the network
+
+Simply run `network.sh up` to bring up the network. This will spawn docker
+containers running a network of 3 "regular" organizations, one auditor
+organization and one reference rate provider as well as a solo orderer.
+
+An additional CLI container will run `network/scripts/script.sh` to join the
+peers to the `irs` channel and deploy the chaincode. In the init parameters it
+supplies the audit threshold, the auditor organization and the reference rate
+provider with the corresponding reference rate ID. In the following transactions
+it sets the reference rate, creates a swap, calculates payment information for
+the swap and marks them as settled afterwards. We will show the corresponding
+commands in the following section.
+
+### Transactions
+
+The chaincode is instantiated as follows:
+```
+peer chaincode instantiate -o irs-orderer:7050 -C irs -n irscc -l golang -v 0 -c '{"Args":["init","auditor","100000","rrprovider","myrr"]}' -P "AND(OR('partya.peer','partyb.peer','partyc.peer'), 'auditor.peer')"
+```
+This sets an auditing threshold of 1M, above which the `auditor` organization
+needs to be involved. It also specifies the `myrr` reference rate provided by
+the `rrprovider` organization.
+
+To set a reference rate:
+```
+peer chaincode invoke -o irs-orderer:7050 -C irs --waitForEvent -n irscc --peerAddresses irs-rrprovider:7051 -c '{"Args":["setReferenceRate","myrr","3"]}'
+```
+Note that the transaction is endorsed by a peer of the organization we have
+specified as providing this reference rate in the init parameters.
+
+To create a swap named "myswap":
+```
+peer chaincode invoke -o irs-orderer:7050 -C irs --waitForEvent -n irscc --peerAddresses irs-partya:7051 --peerAddresses irs-partyb:7051 --peerAddresses irs-auditor:7051 -c '{"Args":["createSwap","myswap","{\"StartDate\":\"2018-09-27T15:04:05Z\",\"EndDate\":\"2018-09-30T15:04:05Z\",\"PaymentInterval\":365,\"PrincipalAmount\":10000000,\"FixedRate\":4,\"FloatingRate\":5,\"ReferenceRate\":\"myrr\"}", "partya", "partyb"]}'
+```
+Note that the transaction is endorsed  by both parties that are part of this
+swap as well as the auditor. Since the principal amount in this case is lower
+than the audit threshold we set as init parameters, no auditor will be required
+to endorse changes to the payment info or swap details.
+
+To calculate payment info for "myswap":
+```
+peer chaincode invoke -o irs-orderer:7050 -C irs --waitForEvent -n irscc --peerAddresses irs-partya:7051 --peerAddresses irs-partyb:7051 -c '{"Args":["calculatePayment","myswap"]}'
+```
+Note that we target only peers of
+party A and party B, since the swap is below the auditing threshold.
+
+To settle payment of "myswap":
+```
+peer chaincode invoke -o irs-orderer:7050 -C irs --waitForEvent -n irscc `--peerAddresses irs-partya:7051 --peerAddresses irs-partyb:7051 -c '{"Args":["settlePayment","myswap"]}'
+```
+
+As an exercise, try to create a new swap above the auditing threshold and see
+how validation fails if the auditor is not involved in every operation on the
+swap. Also try to calculate payment info before settling a prior payment to a
+swap.
--- a/interest_rate_swaps/chaincode/chaincode.go
+++ b/interest_rate_swaps/chaincode/chaincode.go
@ -0,0 +1,313 @@
+/*
+Copyright IBM Corp. All Rights Reserved.
+
+SPDX-License-Identifier: Apache-2.0
+*/
+
+package main
+
+import (
+	"encoding/json"
+	"fmt"
+	"strconv"
+	"time"
+
+	"github.com/hyperledger/fabric/core/chaincode/shim"
+	"github.com/hyperledger/fabric/core/chaincode/shim/ext/statebased"
+	pb "github.com/hyperledger/fabric/protos/peer"
+)
+
+/* InterestRateSwap represents an interest rate swap on the ledger
+ * The swap is active between its start- and end-date.
+ * At the specified interval, two parties A and B exchange the following payments:
+ * A->B (PrincipalAmount * FixedRateBPS) / 100
+ * B->A (PrincipalAmount * (ReferenceRateBPS + FloatingRateBPS)) / 100
+ * We represent rates as basis points, with one basis point being equal to 1/100th
+ * of 1% (see https://www.investopedia.com/terms/b/basispoint.asp)
+ */
+type InterestRateSwap struct {
+	StartDate       time.Time
+	EndDate         time.Time
+	PaymentInterval time.Duration
+	PrincipalAmount uint64
+	FixedRateBPS    uint64
+	FloatingRateBPS uint64
+	ReferenceRate   string
+}
+
+/*
+SwapManager is the chaincode that handles interest rate swaps.
+The chaincode endorsement policy includes an auditing organization.
+It provides the following functions:
+-) createSwap: create swap with participants
+-) calculatePayment: calculate what needs to be paid
+-) settlePayment: mark payment done
+-) setReferenceRate: for providers to set the reference rate
+
+The SwapManager stores three different kinds of information on the ledger:
+-) the actual swap data ("swap" + ID)
+-) the payment information ("payment" + ID), if "none", the payment has been settled
+-) the reference rate ("rr" + ID)
+*/
+type SwapManager struct {
+}
+
+// Init callback
+func (cc *SwapManager) Init(stub shim.ChaincodeStubInterface) pb.Response {
+	args := stub.GetArgs()
+	if len(args) < 5 {
+		return shim.Error("Insufficient number of arguments. Expected: <function> <auditor_MSPID> <audit_threshold> <rr_provider1_MSPID> <rr_provider1_rateID> ... <rr_providerN_MSPID> <rr_providerN_rateID>")
+	}
+	// set the limit above which the auditor needs to be involved, require it
+	// to be endorsed by the auditor
+	err := stub.PutState("audit_limit", args[2])
+	if err != nil {
+		return shim.Error(err.Error())
+	}
+	auditorEP, err := statebased.NewStateEP(nil)
+	if err != nil {
+		return shim.Error(err.Error())
+	}
+	err = auditorEP.AddOrgs(statebased.RoleTypePeer, string(args[1]))
+	if err != nil {
+		return shim.Error(err.Error())
+	}
+	epBytes, err := auditorEP.Policy()
+	if err != nil {
+		return shim.Error(err.Error())
+	}
+	err = stub.SetStateValidationParameter("audit_limit", epBytes)
+	if err != nil {
+		return shim.Error(err.Error())
+	}
+
+	// create the reference rates, require them to be endorsed by the provider
+	for i := 3; i+1 < len(args); i += 2 {
+		org := string(args[i])
+		rrID := "rr" + string(args[i+1])
+		err = stub.PutState(rrID, []byte("0"))
+		if err != nil {
+			return shim.Error(err.Error())
+		}
+		ep, err := statebased.NewStateEP(nil)
+		if err != nil {
+			return shim.Error(err.Error())
+		}
+		err = ep.AddOrgs(statebased.RoleTypePeer, org)
+		if err != nil {
+			return shim.Error(err.Error())
+		}
+		epBytes, err = ep.Policy()
+		if err != nil {
+			return shim.Error(err.Error())
+		}
+		err = stub.SetStateValidationParameter(rrID, epBytes)
+		if err != nil {
+			return shim.Error(err.Error())
+		}
+	}
+
+	return shim.Success([]byte{})
+}
+
+// Invoke dispatcher
+func (cc *SwapManager) Invoke(stub shim.ChaincodeStubInterface) pb.Response {
+	funcName, _ := stub.GetFunctionAndParameters()
+	if function, ok := functions[funcName]; ok {
+		fmt.Printf("Invoking %s\n", funcName)
+		return function(stub)
+	}
+	return shim.Error(fmt.Sprintf("Unknown function %s", funcName))
+}
+
+var functions = map[string]func(stub shim.ChaincodeStubInterface) pb.Response{
+	"createSwap":       createSwap,
+	"calculatePayment": calculatePayment,
+	"settlePayment":    settlePayment,
+	"setReferenceRate": setReferenceRate,
+}
+
+// Create a new swap among participants.
+// The creation of the swap needs to be endorsed by the chaincode endorsement policy.
+// Once created, the swap needs to be endorsed by its participants as well as the
+// auditor in case the principal amount of the swap exceeds the audit threshold.
+// This is enforced through the state-based endorsement policy that is set in this
+// function.
+// Parameters: swap ID, a JSONized InterestRateSwap, MSP ID of participant 1,
+//             MSP ID of participant 2
+func createSwap(stub shim.ChaincodeStubInterface) pb.Response {
+	_, parameters := stub.GetFunctionAndParameters()
+	if len(parameters) != 4 {
+		return shim.Error("Wrong number of arguments supplied. Expected: <swap_ID> <interest_rate_swap_json> <participant1_MSPID> <participant2_MSPID>")
+	}
+
+	// create the swap
+	swapID := "swap" + string(parameters[0])
+	irsJSON := []byte(parameters[1])
+	var irs InterestRateSwap
+	err := json.Unmarshal(irsJSON, &irs)
+	if err != nil {
+		return shim.Error(err.Error())
+	}
+	err = stub.PutState(swapID, irsJSON)
+	if err != nil {
+		return shim.Error(err.Error())
+	}
+
+	// get the auditing threshold
+	auditLimit, err := stub.GetState("audit_limit")
+	if err != nil {
+		return shim.Error(err.Error())
+	}
+	threshold, err := strconv.Atoi(string(auditLimit))
+	if err != nil {
+		return shim.Error(err.Error())
+	}
+
+	// set endorsers
+	ep, err := statebased.NewStateEP(nil)
+	if err != nil {
+		return shim.Error(err.Error())
+	}
+	err = ep.AddOrgs(statebased.RoleTypePeer, parameters[2], parameters[3])
+	if err != nil {
+		return shim.Error(err.Error())
+	}
+	// if the swap principal amount exceeds the audit threshold set in init, the auditor needs to endorse as well
+	if irs.PrincipalAmount > uint64(threshold) {
+		fmt.Printf("Adding auditor for swap %s with prinicipal amount %v above threshold %v\n", parameters[0], irs.PrincipalAmount, uint64(threshold))
+		err = ep.AddOrgs(statebased.RoleTypePeer, "auditor")
+		if err != nil {
+			return shim.Error(err.Error())
+		}
+	}
+
+	// set the endorsement policy for the swap
+	epBytes, err := ep.Policy()
+	if err != nil {
+		return shim.Error(err.Error())
+	}
+	err = stub.SetStateValidationParameter(swapID, epBytes)
+	if err != nil {
+		return shim.Error(err.Error())
+	}
+
+	// create and set the key for the payment
+	paymentID := "payment" + string(parameters[0])
+	err = stub.PutState(paymentID, []byte("none"))
+	if err != nil {
+		return shim.Error(err.Error())
+	}
+	err = stub.SetStateValidationParameter(paymentID, epBytes)
+	if err != nil {
+		return shim.Error(err.Error())
+	}
+
+	return shim.Success([]byte{})
+}
+
+// Calculate the payment due for a given swap
+func calculatePayment(stub shim.ChaincodeStubInterface) pb.Response {
+	_, parameters := stub.GetFunctionAndParameters()
+	if len(parameters) != 1 {
+		return shim.Error("Wrong number of arguments supplied. Expected: <swap_ID>")
+	}
+
+	// retrieve swap
+	swapID := "swap" + parameters[0]
+	irsJSON, err := stub.GetState(swapID)
+	if err != nil {
+		return shim.Error(err.Error())
+	}
+	if irsJSON == nil {
+		return shim.Error(fmt.Sprintf("Swap %s does not exist", parameters[0]))
+	}
+	var irs InterestRateSwap
+	err = json.Unmarshal(irsJSON, &irs)
+	if err != nil {
+		return shim.Error(err.Error())
+	}
+
+	// check if the previous payment has been settled
+	paymentID := "payment" + parameters[0]
+	paid, err := stub.GetState(paymentID)
+	if err != nil {
+		return shim.Error(err.Error())
+	}
+	if paid == nil {
+		return shim.Error("Unexpected error: payment entry is nil. This should not happen.")
+	}
+	if string(paid) != "none" {
+		return shim.Error("Previous payment has not been settled yet")
+	}
+
+	// get reference rate
+	referenceRateBytes, err := stub.GetState("rr" + irs.ReferenceRate)
+	if err != nil {
+		return shim.Error(err.Error())
+	}
+	if referenceRateBytes == nil {
+		return shim.Error(fmt.Sprintf("Reference rate %s not found", irs.ReferenceRate))
+	}
+	referenceRate, err := strconv.Atoi(string(referenceRateBytes))
+	if err != nil {
+		return shim.Error(err.Error())
+	}
+
+	// calculate payment
+	p1 := int((irs.PrincipalAmount * irs.FixedRateBPS) / 100)
+	p2 := int((irs.PrincipalAmount * (irs.FloatingRateBPS + uint64(referenceRate))) / 100)
+	payment := strconv.Itoa(p1 - p2)
+	err = stub.PutState(paymentID, []byte(payment))
+	if err != nil {
+		return shim.Error(err.Error())
+	}
+
+	return shim.Success([]byte(payment))
+}
+
+// Settle the payment for a given swap
+func settlePayment(stub shim.ChaincodeStubInterface) pb.Response {
+	_, parameters := stub.GetFunctionAndParameters()
+	if len(parameters) != 1 {
+		return shim.Error("Wrong number of arguments supplied. Expected: <swap_ID>")
+	}
+	paymentID := "payment" + parameters[0]
+	paid, err := stub.GetState(paymentID)
+	if err != nil {
+		return shim.Error(err.Error())
+	}
+	if paid == nil {
+		return shim.Error("Unexpected error: payment entry is nil. This should not happen.")
+	}
+	if string(paid) == "none" {
+		return shim.Error("Payment has already been settled.")
+	}
+	err = stub.PutState(paymentID, []byte("none"))
+	if err != nil {
+		return shim.Error(err.Error())
+	}
+	return shim.Success([]byte{})
+}
+
+// Set the reference rate for a given rate provider
+func setReferenceRate(stub shim.ChaincodeStubInterface) pb.Response {
+	_, parameters := stub.GetFunctionAndParameters()
+	if len(parameters) != 2 {
+		return shim.Error("Wrong number of arguments supplied. Expected: <reference_rate_ID> <reference_rate_BPS>")
+	}
+
+	rrID := "rr" + parameters[0]
+	err := stub.PutState(rrID, []byte(parameters[1]))
+	if err != nil {
+		return shim.Error(err.Error())
+	}
+	return shim.Success([]byte{})
+}
+
+func main() {
+	err := shim.Start(new(SwapManager))
+	if err != nil {
+		fmt.Printf("Error starting IRS chaincode: %s", err)
+	}
+}
--- a/interest_rate_swaps/network/configtx.yaml
+++ b/interest_rate_swaps/network/configtx.yaml
@ -0,0 +1,192 @@
+# Copyright IBM Corp. All Rights Reserved.
+#
+# SPDX-License-Identifier: Apache-2.0
+#
+
+Organizations:
+    - &orderer
+        Name: orderer
+        ID: orderer
+        MSPDir: crypto-config/ordererOrganizations/example.com/msp
+        Policies:
+            Readers:
+                Type: Signature
+                Rule: OR('orderer.member')
+            Writers:
+                Type: Signature
+                Rule: OR('orderer.member')
+            Admins:
+                Type: Signature
+                Rule: OR('orderer.admin')
+
+
+    - &partya
+        Name: partya
+        ID: partya
+        MSPDir: crypto-config/peerOrganizations/partya.example.com/msp
+        Policies:
+            Readers:
+                Type: Signature
+                Rule: OR('partya.admin', 'partya.peer', 'partya.client')
+            Writers:
+                Type: Signature
+                Rule: OR('partya.admin', 'partya.client')
+            Admins:
+                Type: Signature
+                Rule: OR('partya.admin')
+        AnchorPeers:
+            - Host: irs-partya
+              Port: 7051
+
+    - &partyb
+        Name: partyb
+        ID: partyb
+        MSPDir: crypto-config/peerOrganizations/partyb.example.com/msp
+        Policies:
+            Readers:
+                Type: Signature
+                Rule: OR('partyb.admin', 'partyb.peer', 'partyb.client')
+            Writers:
+                Type: Signature
+                Rule: OR('partyb.admin', 'partyb.client')
+            Admins:
+                Type: Signature
+                Rule: OR('partyb.admin')
+        AnchorPeers:
+            - Host: irs-partyb
+              Port: 7051
+
+    - &partyc
+        Name: partyc
+        ID: partyc
+        MSPDir: crypto-config/peerOrganizations/partyc.example.com/msp
+        Policies:
+            Readers:
+                Type: Signature
+                Rule: OR('partyc.admin', 'partyc.peer', 'partyc.client')
+            Writers:
+                Type: Signature
+                Rule: OR('partyc.admin', 'partyc.client')
+            Admins:
+                Type: Signature
+                Rule: OR('partyc.admin')
+        AnchorPeers:
+            - Host: irs-partyc
+              Port: 7051
+
+    - &auditor
+        Name: auditor
+        ID: auditor
+        MSPDir: crypto-config/peerOrganizations/auditor.example.com/msp
+        Policies:
+            Readers:
+                Type: Signature
+                Rule: OR('auditor.admin', 'auditor.peer', 'auditor.client')
+            Writers:
+                Type: Signature
+                Rule: OR('auditor.admin', 'auditor.client')
+            Admins:
+                Type: Signature
+                Rule: OR('auditor.admin')
+        AnchorPeers:
+            - Host: irs-auditor
+              Port: 7051
+
+    - &rrprovider
+        Name: rrprovider
+        ID: rrprovider
+        MSPDir: crypto-config/peerOrganizations/rrprovider.example.com/msp
+        Policies:
+            Readers:
+                Type: Signature
+                Rule: OR('rrprovider.admin', 'rrprovider.peer', 'rrprovider.client')
+            Writers:
+                Type: Signature
+                Rule: OR('rrprovider.admin', 'rrprovider.client')
+            Admins:
+                Type: Signature
+                Rule: OR('rrprovider.admin')
+        AnchorPeers:
+            - Host: irs-rrprovider
+              Port: 7051
+
+Channel: &ChannelDefaults
+    Capabilities:
+        V1_3: true
+    Policies:
+        Readers:
+            Type: ImplicitMeta
+            Rule: ANY Readers
+        Writers:
+            Type: ImplicitMeta
+            Rule: ANY Writers
+        Admins:
+            Type: ImplicitMeta
+            Rule: MAJORITY Admins
+
+Orderer: &OrdererDefaults
+    OrdererType: solo
+    Capabilities:
+        V1_1: true
+    Addresses:
+        - irs-orderer:7050
+    BatchTimeout: 2s
+    BatchSize:
+        MaxMessageCount: 10
+        AbsoluteMaxBytes: 99 MB
+        PreferredMaxBytes: 512 KB
+    Policies:
+        Readers:
+          Type: ImplicitMeta
+          Rule: ANY Readers
+        Writers:
+          Type: ImplicitMeta
+          Rule: ANY Writers
+        Admins:
+          Type: ImplicitMeta
+          Rule: MAJORITY Admins
+        BlockValidation:
+            Type: ImplicitMeta
+            Rule: ANY Writers
+    Organizations:
+
+Application: &ApplicationDefaults
+    Capabilities:
+        V1_3: true
+    Policies:
+        Readers:
+          Type: ImplicitMeta
+          Rule: ANY Readers
+        Writers:
+          Type: ImplicitMeta
+          Rule: ANY Writers
+        Admins:
+          Type: ImplicitMeta
+          Rule: MAJORITY Admins
+    Organizations:
+
+Profiles:
+    IRSNetGenesis:
+        <<: *ChannelDefaults
+        Orderer:
+            <<: *OrdererDefaults
+            Organizations:
+                - *orderer
+        Consortiums:
+            SampleConsortium:
+                Organizations:
+                    - *partya
+                    - *partyb
+                    - *partyc
+                    - *rrprovider
+                    - *auditor
+    IRSChannel:
+        Consortium: SampleConsortium
+        Application:
+            <<: *ApplicationDefaults
+            Organizations:
+                - *partya
+                - *partyb
+                - *partyc
+                - *rrprovider
+                - *auditor
--- a/interest_rate_swaps/network/crypto-config.yaml
+++ b/interest_rate_swaps/network/crypto-config.yaml
@ -0,0 +1,51 @@
+# Copyright IBM Corp. All Rights Reserved.
+#
+# SPDX-License-Identifier: Apache-2.0
+#
+
+OrdererOrgs:
+  - Name: orderer
+    Domain: example.com
+    Specs:
+      - Hostname: orderer
+
+PeerOrgs:
+  - Name: partya
+    Domain: partya.example.com
+    EnableNodeOUs: true
+    Template:
+      Count: 1
+    Users:
+      Count: 1
+
+  - Name: partyb
+    Domain: partyb.example.com
+    EnableNodeOUs: true
+    Template:
+      Count: 1
+    Users:
+      Count: 1
+
+  - Name: partyc
+    Domain: partyc.example.com
+    EnableNodeOUs: true
+    Template:
+      Count: 1
+    Users:
+      Count: 1
+
+  - Name: auditor
+    Domain: auditor.example.com
+    EnableNodeOUs: true
+    Template:
+      Count: 1
+    Users:
+      Count: 1
+
+  - Name: rrprovider
+    Domain: rrprovider.example.com
+    EnableNodeOUs: true
+    Template:
+      Count: 1
+    Users:
+      Count: 1
--- a/interest_rate_swaps/network/docker-compose.yaml
+++ b/interest_rate_swaps/network/docker-compose.yaml
@ -0,0 +1,163 @@
+# Copyright IBM Corp. All Rights Reserved.
+#
+# SPDX-License-Identifier: Apache-2.0
+#
+
+version: '2'
+
+volumes:
+  orderer.example.com:
+  peer0.partya.example.com:
+  peer0.partyb.example.com:
+  peer0.partyc.example.com:
+  peer0.auditor.example.com:
+  peer0.rrprovider.example.com:
+
+services:
+  peer-base:
+    image: hyperledger/fabric-peer:$IMAGE_TAG
+    environment:
+      - CORE_VM_ENDPOINT=unix:///host/var/run/docker.sock
+      - FABRIC_LOGGING_SPEC=INFO
+      - CORE_PEER_TLS_ENABLED=false
+      - CORE_PEER_GOSSIP_USELEADERELECTION=true
+      - CORE_PEER_GOSSIP_ORGLEADER=false
+      - CORE_PEER_PROFILE_ENABLED=true
+      - CORE_PEER_ADDRESSAUTODETECT=true
+    working_dir: /opt/gopath/src/github.com/hyperledger/fabric/peer
+    command: peer node start
+    volumes:
+    - /var/run/:/host/var/run/
+
+  orderer:
+    container_name: irs-orderer
+    image: hyperledger/fabric-orderer:$IMAGE_TAG
+    environment:
+      - FABRIC_LOGGING_SPEC=INFO
+      - ORDERER_GENERAL_LISTENADDRESS=0.0.0.0
+      - ORDERER_GENERAL_GENESISMETHOD=file
+      - ORDERER_GENERAL_GENESISFILE=/var/hyperledger/orderer/orderer.genesis.block
+      - ORDERER_GENERAL_LOCALMSPID=orderer
+      - ORDERER_GENERAL_LOCALMSPDIR=/var/hyperledger/orderer/msp
+      - ORDERER_GENERAL_TLS_ENABLED=false
+    working_dir: /opt/gopath/src/github.com/hyperledger/fabric
+    command: orderer
+    volumes:
+    - ./channel-artifacts/genesis.block:/var/hyperledger/orderer/orderer.genesis.block
+    - ./crypto-config/ordererOrganizations/example.com/orderers/orderer.example.com/msp:/var/hyperledger/orderer/msp
+    - orderer.example.com:/var/hyperledger/production/orderer
+    ports:
+      - 7050:7050
+
+
+  partya:
+    container_name: irs-partya
+    extends:
+      service: peer-base
+    environment:
+      - CORE_PEER_ID=partya.peer0
+      - CORE_PEER_ADDRESS=irs-partya:7051
+      - CORE_PEER_GOSSIP_EXTERNALENDPOINT=irs-partya:7051
+      - CORE_PEER_LOCALMSPID=partya
+      - CORE_CHAINCODE_LOGGING_SHIM=INFO
+    volumes:
+        - ./crypto-config/peerOrganizations/partya.example.com/peers/peer0.partya.example.com/msp:/etc/hyperledger/fabric/msp
+        - peer0.partya.example.com:/var/hyperledger/production
+    ports:
+      - 7051:7051
+      - 7053:7053
+
+  partyb:
+    container_name: irs-partyb
+    extends:
+      service: peer-base
+    environment:
+      - CORE_PEER_ID=partyb.peer0
+      - CORE_PEER_ADDRESS=irs-partyb:7051
+      - CORE_PEER_GOSSIP_EXTERNALENDPOINT=irs-partyb:7051
+      - CORE_PEER_LOCALMSPID=partyb
+    volumes:
+        - ./crypto-config/peerOrganizations/partyb.example.com/peers/peer0.partyb.example.com/msp:/etc/hyperledger/fabric/msp
+        - peer0.partyb.example.com:/var/hyperledger/production
+    ports:
+      - 8051:7051
+      - 8053:7053
+
+  partyc:
+    container_name: irs-partyc
+    extends:
+      service: peer-base
+    environment:
+      - CORE_PEER_ID=partyc.peer0
+      - CORE_PEER_ADDRESS=irs-partyc:7051
+      - CORE_PEER_GOSSIP_EXTERNALENDPOINT=irs-partyc:7051
+      - CORE_PEER_LOCALMSPID=partyc
+    volumes:
+        - ./crypto-config/peerOrganizations/partyc.example.com/peers/peer0.partyc.example.com/msp:/etc/hyperledger/fabric/msp
+        - peer0.partyc.example.com:/var/hyperledger/production
+    ports:
+      - 9051:7051
+      - 9053:7053
+
+  auditor:
+    container_name: irs-auditor
+    extends:
+      service: peer-base
+    environment:
+      - CORE_PEER_ID=auditor.peer0
+      - CORE_PEER_ADDRESS=irs-auditor:7051
+      - CORE_PEER_GOSSIP_EXTERNALENDPOINT=irs-auditor:7051
+      - CORE_PEER_LOCALMSPID=auditor
+    volumes:
+        - ./crypto-config/peerOrganizations/auditor.example.com/peers/peer0.auditor.example.com/msp:/etc/hyperledger/fabric/msp
+        - peer0.auditor.example.com:/var/hyperledger/production
+    ports:
+      - 10051:7051
+      - 10053:7053
+
+  rrprovider:
+    container_name: irs-rrprovider
+    extends:
+      service: peer-base
+    environment:
+      - CORE_PEER_ID=rrprovider.peer0
+      - CORE_PEER_ADDRESS=irs-rrprovider:7051
+      - CORE_PEER_GOSSIP_EXTERNALENDPOINT=irs-rrprovider:7051
+      - CORE_PEER_LOCALMSPID=rrprovider
+      - CORE_LOGGING_LEVEL=DEBUG
+    volumes:
+        - ./crypto-config/peerOrganizations/rrprovider.example.com/peers/peer0.rrprovider.example.com/msp:/etc/hyperledger/fabric/msp
+        - peer0.rrprovider.example.com:/var/hyperledger/production
+    ports:
+      - 11051:7051
+      - 11053:7053
+
+  cli:
+    container_name: cli
+    image: hyperledger/fabric-tools:$IMAGE_TAG
+    tty: true
+    stdin_open: true
+    environment:
+      - GOPATH=/opt/gopath
+      - CORE_VM_ENDPOINT=unix:///host/var/run/docker.sock
+      - FABRIC_LOGGING_SPEC=INFO
+      - CORE_PEER_ID=cli
+      - CORE_PEER_ADDRESS=irs-partya:7051
+      - CORE_PEER_LOCALMSPID=partya
+      - CORE_PEER_TLS_ENABLED=false
+      - CORE_PEER_MSPCONFIGPATH=/opt/gopath/src/github.com/hyperledger/fabric/peer/crypto/peerOrganizations/partya.example.com/users/Admin@partya.example.com/msp
+    working_dir: /opt/gopath/src/github.com/hyperledger/fabric/peer
+    command: /bin/bash
+    volumes:
+        - /var/run/:/host/var/run/
+        - ../chaincode/:/opt/gopath/src/irscc
+        - ./crypto-config:/opt/gopath/src/github.com/hyperledger/fabric/peer/crypto/
+        - ./scripts:/opt/gopath/src/github.com/hyperledger/fabric/peer/scripts/
+        - ./channel-artifacts:/opt/gopath/src/github.com/hyperledger/fabric/peer/channel-artifacts
+    depends_on:
+      - orderer
+      - partya
+      - partyb
+      - partyc
+      - auditor
+      - rrprovider
--- a/interest_rate_swaps/network/network.sh
+++ b/interest_rate_swaps/network/network.sh
@ -0,0 +1,240 @@
+#!/bin/bash
+#
+# Copyright IBM Corp All Rights Reserved
+#
+# SPDX-License-Identifier: Apache-2.0
+#
+
+# This script brings up a test network for the interest-rate swap fabric example.
+# It relies on two tools:
+# * cryptogen - generates the x509 certificates used to identify and
+#   authenticate the various components in the network.
+# * configtxgen - generates the requisite configuration artifacts for orderer
+#   bootstrap and channel creation.
+#
+# Each tool consumes a configuration yaml file, within which we specify the topology
+# of our network (cryptogen) and the location of our certificates for various
+# configuration operations (configtxgen).  Once the tools have been successfully run,
+# we are able to launch our network.  More detail on the tools and the structure of
+# the network will be provided later in this document.  For now, let's get going...
+
+# prepending $PWD/../bin to PATH to ensure we are picking up the correct binaries
+# this may be commented out to resolve installed version of tools if desired
+export PATH=${PWD}/../../bin:${PWD}:$PATH
+export FABRIC_CFG_PATH=${PWD}
+export VERBOSE=false
+
+# Print the usage message
+function printHelp() {
+  echo "Usage: "
+  echo "  start_network.sh <mode> [-t <timeout>] [-i <imagetag>] [-v]"
+  echo "    <mode> - one of 'up', 'down' or 'generate'"
+  echo "      - 'up' - bring up the network with docker-compose up"
+  echo "      - 'down' - clear the network with docker-compose down"
+  echo "      - 'generate' - generate required certificates and genesis block"
+  echo "    -t <timeout> - CLI timeout duration in seconds (defaults to 10)"
+  echo "    -i <imagetag> - the tag to be used to launch the network (defaults to \"latest\")"
+  echo "    -v - verbose mode"
+  echo
+  echo "Typically, one would first generate the required certificates and "
+  echo "genesis block, then bring up the network."
+}
+
+# Obtain CONTAINER_IDS and remove them
+# TODO Might want to make this optional - could clear other containers
+function clearContainers() {
+  CONTAINER_IDS=$(docker ps -a | awk '($2 ~ /dev-.*irscc.*/) {print $1}')
+  if [ -z "$CONTAINER_IDS" -o "$CONTAINER_IDS" == " " ]; then
+    echo "---- No containers available for deletion ----"
+  else
+    docker rm -f $CONTAINER_IDS
+  fi
+}
+
+# Delete any images that were generated as a part of this setup
+# specifically the following images are often left behind:
+# TODO list generated image naming patterns
+function removeUnwantedImages() {
+  DOCKER_IMAGE_IDS=$(docker images | awk '($1 ~ /dev.*irscc.*/) {print $3}')
+  if [ -z "$DOCKER_IMAGE_IDS" -o "$DOCKER_IMAGE_IDS" == " " ]; then
+    echo "---- No images available for deletion ----"
+  else
+    docker rmi -f $DOCKER_IMAGE_IDS
+  fi
+}
+
+# Versions of fabric known not to work with this release of first-network
+BLACKLISTED_VERSIONS="^1\.0\. ^1\.1\.0-preview ^1\.1\.0-alpha"
+
+# Do some basic sanity checking to make sure that the appropriate versions of fabric
+# binaries/images are available.  In the future, additional checking for the presence
+# of go or other items could be added.
+function checkPrereqs() {
+  # Note, we check configtxlator externally because it does not require a config file, and peer in the
+  # docker image because of FAB-8551 that makes configtxlator return 'development version' in docker
+  LOCAL_VERSION=$(configtxgen -version | sed -ne 's/ Version: //p')
+  DOCKER_IMAGE_VERSION=$(docker run --rm hyperledger/fabric-tools:$IMAGETAG peer version | sed -ne 's/ Version: //p' | head -1)
+
+  echo "LOCAL_VERSION=$LOCAL_VERSION"
+  echo "DOCKER_IMAGE_VERSION=$DOCKER_IMAGE_VERSION"
+
+  if [ "$LOCAL_VERSION" != "$DOCKER_IMAGE_VERSION" ]; then
+    echo "=================== WARNING ==================="
+    echo "  Local fabric binaries and docker images are  "
+    echo "  out of  sync. This may cause problems.       "
+    echo "==============================================="
+  fi
+
+  for UNSUPPORTED_VERSION in $BLACKLISTED_VERSIONS; do
+    echo "$LOCAL_VERSION" | grep -q $UNSUPPORTED_VERSION
+    if [ $? -eq 0 ]; then
+      echo "ERROR! Local Fabric binary version of $LOCAL_VERSION does not match this newer version of BYFN and is unsupported. Either move to a later version of Fabric or checkout an earlier version of fabric-samples."
+      exit 1
+    fi
+
+    echo "$DOCKER_IMAGE_VERSION" | grep -q $UNSUPPORTED_VERSION
+    if [ $? -eq 0 ]; then
+      echo "ERROR! Fabric Docker image version of $DOCKER_IMAGE_VERSION does not match this newer version of BYFN and is unsupported. Either move to a later version of Fabric or checkout an earlier version of fabric-samples."
+      exit 1
+    fi
+  done
+}
+
+# Generate the needed certificates, the genesis block and start the network.
+function networkUp() {
+  checkPrereqs
+  # generate artifacts if they don't exist
+  if [ ! -d "crypto-config" ]; then
+    generateCerts
+    generateChannelArtifacts
+  fi
+  IMAGE_TAG=$IMAGETAG docker-compose -f $COMPOSE_FILE up -d orderer partya partyb partyc auditor rrprovider cli 2>&1
+  if [ $? -ne 0 ]; then
+    echo "ERROR !!!! Unable to start network"
+    exit 1
+  fi
+  # now run the end to end script
+  docker exec cli scripts/script.sh
+  if [ $? -ne 0 ]; then
+    echo "ERROR !!!! Test failed"
+    exit 1
+  fi
+}
+
+# Tear down running network
+function networkDown() {
+  # stop org3 containers also in addition to org1 and org2, in case we were running sample to add org3
+  docker-compose -f $COMPOSE_FILE down --volumes --remove-orphans
+
+  # Bring down the network, deleting the volumes
+  #Delete any ledger backups
+  docker run -v $PWD:/tmp/first-network --rm hyperledger/fabric-tools:$IMAGETAG rm -Rf /tmp/first-network/ledgers-backup
+  #Cleanup the chaincode containers
+  clearContainers
+  #Cleanup images
+  removeUnwantedImages
+  # remove orderer block and other channel configuration transactions and certs
+  rm -rf channel-artifacts/*.block channel-artifacts/*.tx crypto-config
+}
+
+# Generates Org certs using cryptogen tool
+function generateCerts() {
+  which cryptogen
+  if [ "$?" -ne 0 ]; then
+    echo "cryptogen tool not found. exiting"
+    exit 1
+  fi
+  echo "##### Generate certificates using cryptogen tool #########"
+
+  if [ -d "crypto-config" ]; then
+    rm -Rf crypto-config
+  fi
+  cryptogen generate --config=./crypto-config.yaml
+  res=$?
+  if [ $res -ne 0 ]; then
+    echo "Failed to generate certificates..."
+    exit 1
+  fi
+  echo
+}
+
+# Generate orderer genesis block and channel configuration transaction with configtxgen
+function generateChannelArtifacts() {
+  which configtxgen
+  if [ "$?" -ne 0 ]; then
+    echo "configtxgen tool not found. exiting"
+    exit 1
+  fi
+
+  echo "#########  Generating Orderer Genesis block ##############"
+  mkdir channel-artifacts
+  configtxgen -profile IRSNetGenesis -outputBlock ./channel-artifacts/genesis.block
+  res=$?
+  if [ $res -ne 0 ]; then
+    echo "Failed to generate orderer genesis block..."
+    exit 1
+  fi
+  echo
+  echo "### Generating channel configuration transaction 'channel.tx' ###"
+  configtxgen -profile IRSChannel -outputCreateChannelTx ./channel-artifacts/channel.tx -channelID $CHANNEL_NAME
+  res=$?
+  if [ $res -ne 0 ]; then
+    echo "Failed to generate channel configuration transaction..."
+    exit 1
+  fi
+}
+
+# Obtain the OS and Architecture string that will be used to select the correct
+# native binaries for your platform, e.g., darwin-amd64 or linux-amd64
+OS_ARCH=$(echo "$(uname -s | tr '[:upper:]' '[:lower:]' | sed 's/mingw64_nt.*/windows/')-$(uname -m | sed 's/x86_64/amd64/g')" | awk '{print tolower($0)}')
+CHANNEL_NAME="irs"
+COMPOSE_FILE=docker-compose.yaml
+COMPOSE_PROJECT_NAME=fabric-irs
+#
+# default image tag
+IMAGETAG="latest"
+# Parse commandline args
+MODE=$1
+shift
+# Determine whether starting, stopping, generating
+if [ "$MODE" == "up" ]; then
+  EXPMODE="Starting"
+elif [ "$MODE" == "down" ]; then
+  EXPMODE="Stopping"
+elif [ "$MODE" == "generate" ]; then
+  EXPMODE="Generating certs and genesis block"
+else
+  printHelp
+  exit 1
+fi
+
+while getopts "t:i:v" opt; do
+  case "$opt" in
+  t)
+    CLI_TIMEOUT=$OPTARG
+    ;;
+  i)
+    IMAGETAG=$(go env GOARCH)"-"$OPTARG
+    ;;
+  v)
+    VERBOSE=true
+    ;;
+  esac
+done
+
+
+# Announce what was requested
+echo "${EXPMODE} for channel '${CHANNEL_NAME}'"
+
+#Create the network using docker compose
+if [ "${MODE}" == "up" ]; then
+  networkUp
+elif [ "${MODE}" == "down" ]; then ## Clear the network
+  networkDown
+elif [ "${MODE}" == "generate" ]; then ## Generate Artifacts
+  generateCerts
+  generateChannelArtifacts
+else
+  printHelp
+  exit 1
+fi
--- a/interest_rate_swaps/network/scripts/script.sh
+++ b/interest_rate_swaps/network/scripts/script.sh
@ -0,0 +1,123 @@
+#!/bin/bash
+
+DELAY="3"
+TIMEOUT="10"
+VERBOSE="false"
+COUNTER=1
+MAX_RETRY=5
+
+CC_SRC_PATH="irscc/"
+
+createChannel() {
+	CORE_PEER_LOCALMSPID=partya
+	CORE_PEER_ADDRESS=irs-partya:7051
+	CORE_PEER_MSPCONFIGPATH=/opt/gopath/src/github.com/hyperledger/fabric/peer/crypto/peerOrganizations/partya.example.com/users/Admin@partya.example.com/msp
+	echo "===================== Creating channel ===================== "
+	peer channel create -o irs-orderer:7050 -c irs -f ./channel-artifacts/channel.tx
+	echo "===================== Channel created ===================== "
+}
+
+joinChannel () {
+	for org in partya partyb partyc auditor rrprovider
+	do
+		CORE_PEER_LOCALMSPID=$org
+		CORE_PEER_ADDRESS=irs-$org:7051
+		CORE_PEER_MSPCONFIGPATH=/opt/gopath/src/github.com/hyperledger/fabric/peer/crypto/peerOrganizations/$org.example.com/users/Admin@$org.example.com/msp
+		echo "===================== Org $org joining channel ===================== "
+		peer channel join -b irs.block -o irs-orderer:7050
+		echo "===================== Channel joined ===================== "
+	done
+}
+
+installChaincode() {
+	for org in partya partyb partyc auditor rrprovider
+	do
+		CORE_PEER_LOCALMSPID=$org
+		CORE_PEER_ADDRESS=irs-$org:7051
+		CORE_PEER_MSPCONFIGPATH=/opt/gopath/src/github.com/hyperledger/fabric/peer/crypto/peerOrganizations/$org.example.com/users/Admin@$org.example.com/msp
+		echo "===================== Org $org installing chaincode ===================== "
+		peer chaincode install -n irscc -v 0 -l golang -p  ${CC_SRC_PATH}
+		echo "===================== Org $org chaincode installed ===================== "
+	done
+}
+
+instantiateChaincode() {
+	CORE_PEER_LOCALMSPID=partya
+	CORE_PEER_ADDRESS=irs-partya:7051
+	CORE_PEER_MSPCONFIGPATH=/opt/gopath/src/github.com/hyperledger/fabric/peer/crypto/peerOrganizations/partya.example.com/users/Admin@partya.example.com/msp
+	echo "===================== Instantiating chaincode ===================== "
+	peer chaincode instantiate -o irs-orderer:7050 -C irs -n irscc -l golang -v 0 -c '{"Args":["init","auditor","100000","rrprovider","myrr"]}' -P "AND(OR('partya.peer','partyb.peer','partyc.peer'), 'auditor.peer')"
+	echo "===================== Chaincode instantiated ===================== "
+}
+
+setReferenceRate() {
+	CORE_PEER_LOCALMSPID=rrprovider
+	CORE_PEER_ADDRESS=irs-rrprovider:7051
+	CORE_PEER_MSPCONFIGPATH=/opt/gopath/src/github.com/hyperledger/fabric/peer/crypto/peerOrganizations/rrprovider.example.com/users/User1@rrprovider.example.com/msp
+	echo "===================== Invoking chaincode ===================== "
+	peer chaincode invoke -o irs-orderer:7050 -C irs --waitForEvent -n irscc --peerAddresses irs-rrprovider:7051 -c '{"Args":["setReferenceRate","myrr","300"]}'
+	echo "===================== Chaincode invoked ===================== "
+}
+
+createSwap() {
+	CORE_PEER_LOCALMSPID=partya
+	CORE_PEER_ADDRESS=irs-partya:7051
+	CORE_PEER_MSPCONFIGPATH=/opt/gopath/src/github.com/hyperledger/fabric/peer/crypto/peerOrganizations/partya.example.com/users/User1@partya.example.com/msp
+	echo "===================== Invoking chaincode ===================== "
+	peer chaincode invoke -o irs-orderer:7050 -C irs --waitForEvent -n irscc --peerAddresses irs-partya:7051 --peerAddresses irs-partyb:7051 --peerAddresses irs-auditor:7051 -c '{"Args":["createSwap","myswap","{\"StartDate\":\"2018-09-27T15:04:05Z\",\"EndDate\":\"2018-09-30T15:04:05Z\",\"PaymentInterval\":395,\"PrincipalAmount\":10,\"FixedRate\":400,\"FloatingRate\":500,\"ReferenceRate\":\"myrr\"}", "partya", "partyb"]}'
+	echo "===================== Chaincode invoked ===================== "
+}
+
+calculatePayment() {
+	CORE_PEER_LOCALMSPID=partya
+	CORE_PEER_ADDRESS=irs-partya:7051
+	CORE_PEER_MSPCONFIGPATH=/opt/gopath/src/github.com/hyperledger/fabric/peer/crypto/peerOrganizations/partya.example.com/users/User1@partya.example.com/msp
+	echo "===================== Invoking chaincode ===================== "
+	peer chaincode invoke -o irs-orderer:7050 -C irs --waitForEvent -n irscc --peerAddresses irs-partya:7051 --peerAddresses irs-partyb:7051 -c '{"Args":["calculatePayment","myswap"]}'
+	echo "===================== Chaincode invoked ===================== "
+}
+
+settlePayment() {
+	CORE_PEER_LOCALMSPID=partyb
+	CORE_PEER_ADDRESS=irs-partyb:7051
+	CORE_PEER_MSPCONFIGPATH=/opt/gopath/src/github.com/hyperledger/fabric/peer/crypto/peerOrganizations/partyb.example.com/users/User1@partyb.example.com/msp
+	echo "===================== Invoking chaincode ===================== "
+	peer chaincode invoke -o irs-orderer:7050 -C irs --waitForEvent -n irscc --peerAddresses irs-partya:7051 --peerAddresses irs-partyb:7051 -c '{"Args":["settlePayment","myswap"]}'
+	echo "===================== Chaincode invoked ===================== "
+}
+
+## Create channel
+sleep 1
+echo "Creating channel..."
+createChannel
+
+## Join all the peers to the channel
+echo "Having all peers join the channel..."
+joinChannel
+
+## Install chaincode on all peers
+echo "Installing chaincode..."
+installChaincode
+
+# Instantiate chaincode
+echo "Instantiating chaincode..."
+instantiateChaincode
+
+echo "Setting myrr reference rate"
+sleep 3
+setReferenceRate
+
+echo "Creating swap between A and B"
+createSwap
+
+echo "Calculate payment information"
+calculatePayment
+
+echo "Mark payment settled"
+settlePayment
+
+echo
+echo "========= IRS network sample setup completed =========== "
+echo
+
+exit 0