📦 updates MDK for v0.0.4

Taskfile.yml

@@ -22,8 +22,9 @@ tasks:
     env:
       #TAG: "v0.0.1"
       #TAG: "v0.0.2"
-      TAG: "v0.0.3" # current release
-      #TAG: "v0.0.4" # current release
+      TAG: "v0.0.4" # current release
+      #TAG: "v0.0.5" # it will be the next release
+
     cmds:
       - echo "📦 Generating release..."
       - git add .

capsule.dk.go

@@ -6,7 +6,6 @@ import "errors"
 const isFailure = rune('F')
 const isSuccess = rune('S')
 
-
 func success(buffer []byte) uint64 {
 	return copyBufferToMemory(append([]byte(string(isSuccess)), buffer...))
 }
@@ -15,6 +14,16 @@ func failure(buffer []byte) uint64 {
 	return copyBufferToMemory(append([]byte(string(isFailure)), buffer...))
 }
 
+// Success function
+func Success(buffer []byte) uint64 {
+	return success(buffer)
+}
+
+// Failure function
+func Failure(buffer []byte) uint64 {
+	return failure(buffer)
+}
+
 // Result function
 func Result(data []byte,) ([]byte, error) {
 	if data[0] == byte(isSuccess) {

docs/helpers.md

@@ -0,0 +1,65 @@
+# 🧰 Helpers
+
+> 🚧 this is a work in progress
+
+## Success and Failure
+> introduced in v0.0.4
+
+`Success` and `Failure` copy an `[]byte` to the shared memory, and return the position and the length of the value "packed" into a single value (`uint64`).
+
+If you use `Success`, the `[]byte` is prefixed by `rune('S')` before being copied to the shared memory.
+
+If you use `Failure`, the `[]byte` is prefixed by `rune('F')` before being copied to the shared memory.
+
+This value will be used by the function `CallHandleFunction` of the [Host SDK](https://github.com/bots-garden/capsule-host-sdk/blob/main/runtime.go) that will use the [`Result` function](https://github.com/bots-garden/capsule-host-sdk/blob/main/capsule.dk.go) to extract the result status (success or failure) and the result value (value or error).
+
+```golang
+// Package main
+package main
+
+import (
+	"strconv"
+	"github.com/bots-garden/capsule-module-sdk"
+)
+
+// OnHealthCheck function
+//export OnHealthCheck
+func OnHealthCheck() uint64 {
+	capsule.Print("⛑️ OnHealthCheck")
+
+	response := capsule.HTTPResponse{
+		JSONBody: `{"message": "OK"}`,
+		Headers: `{"Content-Type": "application/json; charset=utf-8"}`,
+		StatusCode: 200,
+	}
+
+	return capsule.Success([]byte(capsule.StringifyHTTPResponse(response)))
+}
+
+func main() {
+	capsule.SetHandleHTTP(func (param capsule.HTTPRequest) (capsule.HTTPResponse, error) {
+		return capsule.HTTPResponse{
+			TextBody: "👋 Hey",
+			Headers: `{"Content-Type": "text/plain; charset=utf-8"}`,
+			StatusCode: 200,
+		}, nil
+
+	})
+}
+```
+> 👋 don't forget to export the `OnHealthCheck` function
+
+## StringifyHTTPResponse
+> introduced in v0.0.4
+
+`StringifyHTTPResponse` converts a `capsule.HTTPResponse` into a string.
+
+```golang
+response := capsule.HTTPResponse{
+	JSONBody: `{"message": "OK"}`,
+	Headers: `{"Content-Type": "application/json; charset=utf-8"}`,
+	StatusCode: 200,
+}
+
+str := capsule.StringifyHTTPResponse(response)
+```

docs/index.md

@@ -1,6 +1,8 @@
 # Capsule Module SDK
 
 !!! info "What's new?"
+    - `v0.0.4`: ✨ Add `Success` and `Failure` functions (public functionc to call `success` and `failure`) and `StringifyHTTPResponse`
+    - `v0.0.3`: ✨ Encode `retValue.TextBody` to avoid special characters in jsonString
     - `v0.0.2`: ✨ Redis support
     - `v0.0.1`: 🎉 first release
 

handle.http.go

@@ -7,18 +7,40 @@ import (
 	"github.com/valyala/fastjson"
 )
 
-
-
 var handleHTTPFunction func(param HTTPRequest) (HTTPResponse, error)
 
 // SetHandleHTTP sets the handle function
 func SetHandleHTTP(function func(param HTTPRequest) (HTTPResponse, error)) {
 	handleHTTPFunction = function
 }
 
+// StringifyHTTPResponse converts a HTTPResponse to a string
+func StringifyHTTPResponse(response HTTPResponse) string {
+
+	var jsonBody string
+	if len(response.JSONBody) == 0 {
+		jsonBody = "{}"
+	} else {
+		jsonBody = response.JSONBody
+	}
+
+	var textBody string
+	if len(response.TextBody) == 0 {
+		textBody = ""
+	} else {
+		// avoid special characters in jsonString
+		textBody = base64.StdEncoding.EncodeToString([]byte(response.TextBody))
+		//textBody = retValue.TextBody
+	}
+
+	jsonHTTPResponse := `{"JSONBody":` + jsonBody + `,"TextBody":"` + textBody + `","Headers":` + response.Headers + `,"StatusCode":` + strconv.Itoa(response.StatusCode) + `}`
+
+	return jsonHTTPResponse
+}
+
 //export callHandleHTTP
 func callHandleHTTP(JSONDataPos *uint32, JSONDataSize uint32) uint64 {
-	
+
 	parser := fastjson.Parser{}
 
 	JSONDataBuffer := readBufferFromMemory(JSONDataPos, JSONDataSize)
@@ -30,9 +52,9 @@ func callHandleHTTP(JSONDataPos *uint32, JSONDataSize uint32) uint64 {
 		Body: string(JSONData.GetStringBytes("Body")),
 		//JSONBody: string(JSONData.GetStringBytes("JSONBody")), //! to use in the future
 		//TextBody: string(JSONData.GetStringBytes("TextBody")), //! to use in the future
-		URI:      string(JSONData.GetStringBytes("URI")),
-		Method:   string(JSONData.GetStringBytes("Method")),
-		Headers:  string(JSONData.GetStringBytes("Headers")),
+		URI:     string(JSONData.GetStringBytes("URI")),
+		Method:  string(JSONData.GetStringBytes("Method")),
+		Headers: string(JSONData.GetStringBytes("Headers")),
 	}
 
 	// call the handle function
@@ -49,7 +71,7 @@ func callHandleHTTP(JSONDataPos *uint32, JSONDataSize uint32) uint64 {
 	} else {
 		jsonBody = retValue.JSONBody
 	}
-	
+
 	var textBody string
 	if len(retValue.TextBody) == 0 {
 		textBody = ""
@@ -59,9 +81,9 @@ func callHandleHTTP(JSONDataPos *uint32, JSONDataSize uint32) uint64 {
 		//textBody = retValue.TextBody
 	}
 
-	jsonHTTPResponse := `{"JSONBody":`+jsonBody+`,"TextBody":"`+textBody+`","Headers":`+retValue.Headers+`,"StatusCode":`+strconv.Itoa(retValue.StatusCode)+`}`
+	jsonHTTPResponse := `{"JSONBody":` + jsonBody + `,"TextBody":"` + textBody + `","Headers":` + retValue.Headers + `,"StatusCode":` + strconv.Itoa(retValue.StatusCode) + `}`
 
 	// first byte == 82
 	return success([]byte(jsonHTTPResponse))
 
-}
+}

mkdocs.yml

@@ -17,6 +17,7 @@ nav:
       - First CLI module: first-cli-module.md
       - First HTTP module: first-http-module.md
     - 🛠️ Host functions: host-functions.md
+    - 🧰 Helpers: helpers.md
 
 theme:
   name: material

samples/http-say-hello/go.sum

@@ -0,0 +1,4 @@
+github.com/bots-garden/capsule-module-sdk v0.0.3 h1:a0TRgwdiJjc+9raOe4zQoWPnzxKegqmInVmwzlaDuug=
+github.com/bots-garden/capsule-module-sdk v0.0.3/go.mod h1:DtKYwanz4YvBwSpu0GuuhtkeFE6+jDgEucBOTWVBMy8=
+github.com/valyala/fastjson v1.6.4 h1:uAUNq9Z6ymTgGhcm0UynUAB6tlbakBrz6CQFax3BXVQ=
+github.com/valyala/fastjson v1.6.4/go.mod h1:CLCAqky6SMuOcxStkYQvblddUtoRxhYMGLrsQns1aXY=

samples/http-say-hello/main.go

@@ -12,14 +12,14 @@ func main() {
 	capsule.SetHandleHTTP(Handle)
 }
 
-// Handle function 
+// Handle function
 func Handle(param capsule.HTTPRequest) (capsule.HTTPResponse, error) {
-	
+
 	capsule.Print("📝: " + param.Body)
 	capsule.Print("🔠: " + param.Method)
 	capsule.Print("🌍: " + param.URI)
 	capsule.Print("👒: " + param.Headers)
-	
+
 	var p fastjson.Parser
 	jsonBody, err := p.Parse(param.Body)
 	if err != nil {
@@ -29,8 +29,8 @@ func Handle(param capsule.HTTPRequest) (capsule.HTTPResponse, error) {
 	capsule.Log(message)
 
 	response := capsule.HTTPResponse{
-		JSONBody: `{"message": "`+message+`"}`,
-		Headers: `{"Content-Type": "application/json; charset=utf-8"}`,
+		JSONBody:   `{"message": "` + message + `"}`,
+		Headers:    `{"Content-Type": "application/json; charset=utf-8"}`,
 		StatusCode: 200,
 	}