go-sdk

README

Keploy Go-SDK

This is the client SDK for Keploy API testing platform. There are 2 modes:

1. Record mode
   1. Record requests, response and all external calls and sends to Keploy server.
   2. After keploy server removes duplicates, it then runs the request on the API again to identify noisy fields.
   3. Sends the noisy fields to the keploy server to be saved along with the testcase.
2. Test mode
   1. Fetches testcases for the app from keploy server.
   2. Calls the API with same request payload in testcase.
   3. Mocks external calls based on data stored in the testcase.
   4. Validates the respones and uploads results to the keploy server

Contents

1. Installation
2. Usage
3. Configure
4. Supported Routers
5. Supported Databases
6. Support Clients

Installation

go get -u github.com/keploy/go-sdk

Usage

import(
    "github.com/keploy/go-sdk/keploy"
    "github.com/keploy/go-sdk/integrations/<package_name>"
)

Create your app instance

k := keploy.New(keploy.Config{
     App: keploy.AppConfig{
         Name: "<app_name>",
         Port: "<app_port>",
     },
     Server: keploy.ServerConfig{
         URL: "<keploy_host>", 
         LicenseKey: "<license_key>", //optional for managed services
     },
    })

For example:

port := "8080"
 k := keploy.New(keploy.Config{
     App: keploy.AppConfig{
         Name: "my-app",
         Port: port,
     },
     Server: keploy.ServerConfig{
         URL: "http://localhost:8081/api",
     },
 })
 

Configure

export KEPLOY_MODE="test"

KEPLOY_MODE

There are 3 modes:

• Record: Sets to record mode.
• Test: Sets to test mode.
• Off: Turns off all the functionality provided by the API

Note: KEPLOY_MODE value is case sensitive.

Supported Routers

1. Chi

r := chi.NewRouter()
kchi.ChiV5(k,r)

Example

import("github.com/keploy/go-sdk/integrations/kchi")

r := chi.NewRouter()
port := "8080"
k := keploy.New(keploy.Config{
           App: keploy.AppConfig{
               Name: "my_app",
               Port: port,
           },
           Server: keploy.ServerConfig{
               URL: "http://localhost:8081/api",
           },
         })
kchi.ChiV5(k,r)
http.ListenAndServe(":" + port, r)

2. Gin

r:=gin.New()
kgin.GinV1(k, r)

Example

import("github.com/keploy/go-sdk/integrations/kgin/v1")

r:=gin.New()
port := "8080"
k := keploy.New(keploy.Config{
  App: keploy.AppConfig{
      Name: "my_app",
      Port: port,
  },
  Server: keploy.ServerConfig{
      URL: "http://localhost:8081/api",
  },
})
kgin.GinV1(k, r)
r.Run(":" + port)

3. Echo

e := echo.New()
kecho.EchoV4(k, e)

Example

import("github.com/keploy/go-sdk/integrations/kecho/v4")

e := echo.New()
port := "8080"
k := keploy.New(keploy.Config{
  App: keploy.AppConfig{
      Name: "my-app",
      Port: port,
  },
  Server: keploy.ServerConfig{
      URL: "http://localhost:8081/api",
  },
})
kecho.EchoV4(k, e)
e.Start(":" + port)

4. WebGo

WebGoV4

router := webgo.NewRouter(cfg, getRoutes())
kwebgo.WebGoV4(k, router)

WebGoV6

kwebgo.WebGoV6(k, router)
router.Start()

Example

import("github.com/keploy/go-sdk/integrations/kwebgo/v4")

port := "8080"
k := keploy.New(keploy.Config{
  App: keploy.AppConfig{
      Name: "my-app",
      Port: port,
  },
  Server: keploy.ServerConfig{
      URL: "http://localhost:8081/api",
  },
})

kwebgo.WebGoV4(k

, router)
router.Start()

5. Gorilla/Mux

r := mux.NewRouter()
kmux.Mux(k, r)

Example

import(	
    "github.com/keploy/go-sdk/integrations/kmux"
    "net/http"
)

r := mux.NewRouter()
port := "8080"
k := keploy.New(keploy.Config{
  App: keploy.AppConfig{
      Name: "my-app",
      Port: port,
  },
  Server: keploy.ServerConfig{
      URL: "http://localhost:8081/api",
  },
})
kmux.Mux(k, r)
http.ListenAndServe(":"+port, r)

Supported Databases

1. MongoDB

import("github.com/keploy/go-sdk/integrations/kmongo")

db  := client.Database("testDB")
col := kmongo.NewCollection(db.Collection("Demo-Collection"))

Following operations are supported:

• FindOne - Err and Decode method of mongo.SingleResult
  
• Find - Next, TryNext, Err, Close, All and Decode methods of mongo.cursor
  
• InsertOne
  
• InsertMany
  
• UpdateOne
  
• UpdateMany
  
• DeleteOne
  
• DeleteMany
  
• CountDocuments
  
• Distinct
  
• Aggregate - Next, TryNext, Err, Close, All and Decode methods of mongo.cursor

2. DynamoDB

import("github.com/keploy/go-sdk/integrations/kddb")

client := kddb.NewDynamoDB(dynamodb.New(sess))

Following operations are supported:

• QueryWithContext
• GetItemWithContext
• PutItemWithContext

3. SQL Driver

Keploy inplements most of the sql driver's interface for mocking the outputs of sql queries. Its compatible with gORM. Note: sql methods which have request context as parameter can be supported because outputs are replayed or captured to context. Here is an example -

    import (
        "github.com/keploy/go-sdk/integrations/ksql"
        "github.com/lib/pq"
    )
    func main(){
        // Register keploy sql driver to database/sql package.
        driver := ksql.Driver{Driver: pq.Driver{}}
	    sql.Register("keploy", &driver)
        
        pSQL_URI := fmt.Sprintf("host=%s user=%s dbname=%s sslmode=disable password=%s port=%s", "localhost", "postgres", "Book_Keeper", "8789", "5432")
        // keploy driver will internally open the connection using dataSourceName string parameter
        db, err := sql.Open("keploy", pSQL_URI)
        if err!=nil{
            log.Fatal(err)
        } else {
            fmt.Println("Successfully connected to postgres")
        }
        defer db.Close

        r:=gin.New()
        kgin.GinV1(kApp, r)
        r.GET("/gin/:color/*type", func(c *gin.Context) {
            // ctx parameter of PingContext should be request context.
            err = db.PingContext(r.Context())
            if err!=nil{
                log.Fatal(err)
            }
            id := 47
            result, err := db.ExecContext(r.Context(), "UPDATE balances SET balance = balance + 10 WHERE user_id = ?", id)
            if err != nil {
                log.Fatal(err)
            }
        }))
    }

Note: To integerate with gORM set DisableAutomaticPing of gorm.Config to true. Also pass request context to methods as params. Example for gORM:

    func main(){
        // Register keploy sql driver to database/sql package.
        driver := ksql.Driver{Driver: pq.Driver{}}
        sql.Register("keploy", &driver)

        pSQL_URI := fmt.Sprintf("host=%s user=%s dbname=%s sslmode=disable password=%s port=%s", "localhost", "postgres", "Book_Keeper", "8789", "5432")

        // set DisableAutomaticPing to true so that .
        pSQL_DB, err :=  gorm.Open( postgres.New(postgres.Config{
                DriverName: "keploy", 
                DSN: pSQL_URI
            }), &gorm.Config{ 
                DisableAutomaticPing: true 
        })
        r:=gin.New()
        kgin.GinV1(kApp, r)
        r.GET("/gin/:color/*type", func(c *gin.Context) {
            // set the context of *gorm.DB with request's context of http Handler function before queries.
            pSQL_DB = pSQL_DB.WithContext(r.Context())
            // Find
            var (
                people []Book
            )
            x := pSQL_DB.Find(&people)
        }))
    }

Supported Clients

net/http

interceptor := khttpclient.NewInterceptor(http.DefaultTransport)
client := http.Client{
    Transport: interceptor,
}

Example

import("github.com/keploy/go-sdk/integrations/khttpclient")

func main(){
	// initialize a gorilla mux
	r := mux.NewRouter()
	// keploy config
	port := "8080"
	kApp := keploy.New(keploy.Config{
		App: keploy.AppConfig{
			Name: "Mux-Demo-app",
			Port: port,
		},
		Server: keploy.ServerConfig{
			URL: "http://localhost:8081/api",
		},
	})
	// configure mux for integeration with keploy
	kmux.Mux(kApp, r)
	// configure http client with keploy's interceptor
	interceptor := khttpclient.NewInterceptor(http.DefaultTransport)
	client := http.Client{
		Transport: interceptor,
	}
	
	r.HandleFunc("/mux/httpGet",func (w http.ResponseWriter, r *http.Request)  {
		// SetContext should always be called once in a http handler before http.Client's Get or Post or Head or PostForm method.
        // Passing requests context as parameter.
		interceptor.SetContext(r.Context())
		// make Get, Post, etc request to external http service
		resp, err := client.Get("https://example.com/getDocs")
		if err != nil {
			log.Fatal(err)
		}
		defer resp.Body.Close()
		body, err := io.ReadAll(resp.Body)
		fmt.Println("BODY : ", body)
	})

	r.HandleFunc("/mux/httpDo", func(w http.ResponseWriter, r *http.Request){
		putBody, _ := json.Marshal(map[string]interface{}{
		    "name":  "Ash",
		    "age": 21,
		    "city": "Palet town",
		})
		PutBody := bytes.NewBuffer(putBody)
		// Use handler request's context or SetContext before http.Client.Do method call
		req,err := http.NewRequestWithContext(r.Context(), http.MethodPut, "https://example.com/updateDocs", PutBody)
		req.Header.Set("Content-Type", "application/json; charset=utf-8")
		if err!=nil{
		    log.Fatal(err)
		}
		resp,err := cl.Do(req)
		if err!=nil{
		    log.Fatal(err)
		}
		defer resp.Body.Close()
		body, err := io.ReadAll(resp.Body)
		if err!=nil{
		    log.Fatal(err)
		}
		fmt.Println(" response Body: ", string(body))

	})

	// gcp compute API integeration
	client, err := google.DefaultClient(context.TODO(), compute.ComputeScope)
	if err != nil {
		fmt.Println(err)
	}
	// add keploy interceptor to gcp httpClient
	intercept := khttpclient.NewInterceptor(client.Transport)
	client.Transport = intercept

	r.HandleFunc("/mux/gcpDo", func(w http.ResponseWriter, r *http.Request){
		computeService, err := compute.NewService(r.Context(), option.WithHTTPClient(client), option.WithCredentialsFile("/Users/abc/auth.json"))
		zoneListCall := computeService.Zones.List(project)
		zoneList, err := zoneListCall.Do()
	})
}

Note: ensure to pass request context to all external requests like http requests, db calls, etc.

gRPC

conn, err := grpc.Dial(address, grpc.WithInsecure(), kgrpc.WithClientUnaryInterceptor(k))

Example

import("github.com/keploy/go-sdk/integrations/kgrpc")

port := "8080"
k := keploy.New(keploy.Config{
  App: keploy.AppConfig{
      Name: "my-app",
      Port: port,
  },
  Server: keploy.ServerConfig{
      URL: "http://localhost:8081/api",
  },
})

conn, err := grpc.Dial(address, grpc.WithInsecure(), kgrpc.WithClientUnaryInterceptor(k))

Note: Currently streaming is not yet supported.