[wip] nodejs client

Signed-off-by: Anton Nesterov <anton@demiurg.io>

.gitignore

@@ -0,0 +1,175 @@
+# Based on https://raw.githubusercontent.com/github/gitignore/main/Node.gitignore
+
+# Logs
+
+logs
+_.log
+npm-debug.log_
+yarn-debug.log*
+yarn-error.log*
+lerna-debug.log*
+.pnpm-debug.log*
+
+# Caches
+
+.cache
+
+# Diagnostic reports (https://nodejs.org/api/report.html)
+
+report.[0-9]_.[0-9]_.[0-9]_.[0-9]_.json
+
+# Runtime data
+
+pids
+_.pid
+_.seed
+*.pid.lock
+
+# Directory for instrumented libs generated by jscoverage/JSCover
+
+lib-cov
+
+# Coverage directory used by tools like istanbul
+
+coverage
+*.lcov
+
+# nyc test coverage
+
+.nyc_output
+
+# Grunt intermediate storage (https://gruntjs.com/creating-plugins#storing-task-files)
+
+.grunt
+
+# Bower dependency directory (https://bower.io/)
+
+bower_components
+
+# node-waf configuration
+
+.lock-wscript
+
+# Compiled binary addons (https://nodejs.org/api/addons.html)
+
+build/Release
+
+# Dependency directories
+
+node_modules/
+jspm_packages/
+
+# Snowpack dependency directory (https://snowpack.dev/)
+
+web_modules/
+
+# TypeScript cache
+
+*.tsbuildinfo
+
+# Optional npm cache directory
+
+.npm
+
+# Optional eslint cache
+
+.eslintcache
+
+# Optional stylelint cache
+
+.stylelintcache
+
+# Microbundle cache
+
+.rpt2_cache/
+.rts2_cache_cjs/
+.rts2_cache_es/
+.rts2_cache_umd/
+
+# Optional REPL history
+
+.node_repl_history
+
+# Output of 'npm pack'
+
+*.tgz
+
+# Yarn Integrity file
+
+.yarn-integrity
+
+# dotenv environment variable files
+
+.env
+.env.development.local
+.env.test.local
+.env.production.local
+.env.local
+
+# parcel-bundler cache (https://parceljs.org/)
+
+.parcel-cache
+
+# Next.js build output
+
+.next
+out
+
+# Nuxt.js build / generate output
+
+.nuxt
+dist
+
+# Gatsby files
+
+# Comment in the public line in if your project uses Gatsby and not Next.js
+
+# https://nextjs.org/blog/next-9-1#public-directory-support
+
+# public
+
+# vuepress build output
+
+.vuepress/dist
+
+# vuepress v2.x temp and cache directory
+
+.temp
+
+# Docusaurus cache and generated files
+
+.docusaurus
+
+# Serverless directories
+
+.serverless/
+
+# FuseBox cache
+
+.fusebox/
+
+# DynamoDB Local files
+
+.dynamodb/
+
+# TernJS port file
+
+.tern-port
+
+# Stores VSCode versions used for testing VSCode extensions
+
+.vscode-test
+
+# yarn v2
+
+.yarn/cache
+.yarn/unplugged
+.yarn/build-state.yml
+.yarn/install-state.gz
+.pnp.*
+
+# IntelliJ based IDEs
+.idea
+
+# Finder (MacOS) folder config
+.DS_Store

README.md

@@ -0,0 +1,21 @@
+# DAL [WIP]
+
+Data Accees Layer for SQL databases written in Go.
+
+Mongodb inspired query interface:
+
+```typescript
+const query = Db
+  .In("users")
+  .Find({ 
+    fullname: { $glob: "*son" } 
+  })
+  .Query()
+
+// Result:
+console.log(users) 
+[  
+  { id: 25, fullname: "John Menson" }, 
+  { id: 76, fullname: "John Johnson" }
+]
+```

dal/Builder.ts

@@ -0,0 +1,115 @@
+import type { Request } from "./Protocol";
+import { METHODS } from "./Protocol";
+
+type Primitive = string | number | boolean | null;
+
+interface Filter extends Record<string, unknown> {
+    $eq?: Primitive;
+    $ne?: Primitive;
+    $gt?: Primitive;
+    $gte?: Primitive;
+    $lt?: Primitive;
+    $lte?: Primitive;
+    $in?: Primitive[];
+    $nin?: Primitive[];
+    $like?: string;
+    $nlike?: string;
+    $glob?: string;
+    $between?: [Primitive, Primitive];
+    $nbetween?: [Primitive, Primitive];
+}
+interface FindFilter {
+    [key: string]: Primitive | Filter | Filter[] | undefined;
+}
+
+type JoinCondition = "inner" | "left" | "cross" | "full outer";
+type JoinFilter = {
+  $for: string;
+  $do: FindFilter;
+  $as?: JoinCondition;
+};
+
+export type SortOptions = Record<string, 1 | -1 | "asc" | "desc">;
+
+
+export default class Builder {
+    private request: Request;
+    constructor(database: string) {
+        this.request = {
+            id: 0,
+            db: database,
+            commands: [],
+        };
+    }
+    private format(): void {
+        this.request.commands = METHODS.map((method) => {
+            const command = this.request.commands.find((command) => command.method === method);
+            return command;
+        }).filter(Boolean) as Request["commands"];
+    }
+    In(table: string): Builder {
+        this.request.commands.push({ method: "In", args: [table] });
+        return this;
+    }
+    Find(filter: FindFilter): Builder {
+        this.request.commands.push({ method: "Find", args: [filter] });
+        return this;
+    }
+    Select(fields: string[]): Builder {
+        this.request.commands.push({ method: "Select", args: fields });
+        return this;
+    }
+    Fields(fields: string[]): Builder {
+        this.Select(fields);
+        return this;
+    }
+    Join(...joins: JoinFilter[]): Builder {
+        this.request.commands.push({ method: "Join", args: joins });
+        return this;
+    }
+    Group(fields: string[]): Builder {
+        this.request.commands.push({ method: "Group", args: fields });
+        return this;
+    }
+    Sort(fields: SortOptions): Builder {
+        this.request.commands.push({ method: "Sort", args: fields });
+        return this;
+    }
+    Limit(limit: number): Builder {
+        this.request.commands.push({ method: "Limit", args: [limit] });
+        return this;
+    }
+    Offset(offset: number): Builder {
+        this.request.commands.push({ method: "Offset", args: [offset] });
+        return this;
+    }
+    Delete(): Builder {
+        this.request.commands.push({ method: "Delete", args: [] });
+        return this;
+    }
+    Insert(data: Record<string, unknown>): Builder {
+        this.request.commands.push({ method: "Insert", args: [data] });
+        return this;
+    }
+    Set(data: Record<string, unknown>): Builder {
+        this.request.commands.push({ method: "Set", args: [data] });
+        return this;
+    }
+    Update(data: Record<string, unknown>): Builder {
+        this.Set(data);
+        return this;
+    }
+    OnConflict(...fields: string[]): Builder {
+        this.request.commands.push({ method: "OnConflict", args: fields });
+        return this;
+    }
+    DoUpdate(...fields: string[]): Builder {
+        this.request.commands.push({ method: "DoUpdate", args: fields });
+        return this;
+    }
+    DoNothing(): Builder {
+        this.request.commands.push({ method: "DoNothing", args: [] });
+        return this;
+    }
+    
+}

dal/Protocol.ts

@@ -0,0 +1,18 @@
+import { encode } from '@msgpack/msgpack';
+
+export interface Method {
+    method: string;
+    args: any;
+}
+
+export interface Request {
+    id: number;
+    db: string;
+    commands: Method[];
+}
+
+export const METHODS = "In|Find|Select|Fields|Join|Group|Sort|Limit|Offset|Delete|Insert|Set|Update|OnConflict|DoUpdate|DoNothing".split("|");
+
+export function encodeRequest(request: Request): Uint8Array {
+    return encode(request);
+}

dal/readme.md

@@ -0,0 +1,3 @@
+# [wip] DAL
+NodeJS Client for the [DAL]() Server.
+

package.json

@@ -0,0 +1,14 @@
+{
+  "name": "dal",
+  "module": "dal/index.ts",
+  "type": "module",
+  "devDependencies": {
+    "@types/bun": "latest"
+  },
+  "peerDependencies": {
+    "typescript": "^5.0.0"
+  },
+  "dependencies": {
+    "@msgpack/msgpack": "^3.0.0-beta2"
+  }
+}

pkg/__test__/proto_test.ts

@@ -1,3 +1,4 @@
+//@ts-ignore
 import { encode } from "https://deno.land/x/msgpack@v1.2/mod.ts";
 
 const Query = {
@@ -17,4 +18,5 @@ const Query = {
 };
 
 const encoded: Uint8Array = encode(Query);
+//@ts-ignore
 Deno.writeFileSync("proto_test.msgpack", encoded);

pkg/proto/request.go

@@ -12,7 +12,7 @@ import (
 
 //go:generate msgp
 
-type BuildCmd struct {
+type BuilderMethod struct {
 	Method string        `msg:"method"`
 	Args   []interface{} `msg:"args"`
 }
@@ -20,7 +20,7 @@ type BuildCmd struct {
 type Request struct {
 	Id       uint32          `msg:"id"`
 	Db       string          `msg:"db"`
-	Commands []BuildCmd `msg:"commands"`
+	Commands []BuilderMethod `msg:"commands"`
 }
 
 var allowedMethods = strings.Split(builder.BUILDER_CLIENT_METHODS, "|")

pkg/proto/request_gen.go

@@ -7,7 +7,7 @@ import (
 )
 
 // DecodeMsg implements msgp.Decodable
-func (z *BuildCmd) DecodeMsg(dc *msgp.Reader) (err error) {
+func (z *BuilderMethod) DecodeMsg(dc *msgp.Reader) (err error) {
 	var field []byte
 	_ = field
 	var zb0001 uint32
@@ -61,7 +61,7 @@ func (z *BuildCmd) DecodeMsg(dc *msgp.Reader) (err error) {
 }
 
 // EncodeMsg implements msgp.Encodable
-func (z *BuildCmd) EncodeMsg(en *msgp.Writer) (err error) {
+func (z *BuilderMethod) EncodeMsg(en *msgp.Writer) (err error) {
 	// map header, size 2
 	// write "method"
 	err = en.Append(0x82, 0xa6, 0x6d, 0x65, 0x74, 0x68, 0x6f, 0x64)
@@ -94,7 +94,7 @@ func (z *BuildCmd) EncodeMsg(en *msgp.Writer) (err error) {
 }
 
 // MarshalMsg implements msgp.Marshaler
-func (z *BuildCmd) MarshalMsg(b []byte) (o []byte, err error) {
+func (z *BuilderMethod) MarshalMsg(b []byte) (o []byte, err error) {
 	o = msgp.Require(b, z.Msgsize())
 	// map header, size 2
 	// string "method"
@@ -114,7 +114,7 @@ func (z *BuildCmd) MarshalMsg(b []byte) (o []byte, err error) {
 }
 
 // UnmarshalMsg implements msgp.Unmarshaler
-func (z *BuildCmd) UnmarshalMsg(bts []byte) (o []byte, err error) {
+func (z *BuilderMethod) UnmarshalMsg(bts []byte) (o []byte, err error) {
 	var field []byte
 	_ = field
 	var zb0001 uint32
@@ -169,7 +169,7 @@ func (z *BuildCmd) UnmarshalMsg(bts []byte) (o []byte, err error) {
 }
 
 // Msgsize returns an upper bound estimate of the number of bytes occupied by the serialized message
-func (z *BuildCmd) Msgsize() (s int) {
+func (z *BuilderMethod) Msgsize() (s int) {
 	s = 1 + 7 + msgp.StringPrefixSize + len(z.Method) + 5 + msgp.ArrayHeaderSize
 	for za0001 := range z.Args {
 		s += msgp.GuessSize(z.Args[za0001])
@@ -217,7 +217,7 @@ func (z *Request) DecodeMsg(dc *msgp.Reader) (err error) {
 			if cap(z.Commands) >= int(zb0002) {
 				z.Commands = (z.Commands)[:zb0002]
 			} else {
-				z.Commands = make([]BuildCmd, zb0002)
+				z.Commands = make([]BuilderMethod, zb0002)
 			}
 			for za0001 := range z.Commands {
 				var zb0003 uint32
@@ -417,7 +417,7 @@ func (z *Request) UnmarshalMsg(bts []byte) (o []byte, err error) {
 			if cap(z.Commands) >= int(zb0002) {
 				z.Commands = (z.Commands)[:zb0002]
 			} else {
-				z.Commands = make([]BuildCmd, zb0002)
+				z.Commands = make([]BuilderMethod, zb0002)
 			}
 			for za0001 := range z.Commands {
 				var zb0003 uint32

pkg/proto/request_gen_test.go

@@ -10,7 +10,7 @@ import (
 )
 
 func TestMarshalUnmarshalBuildCmd(t *testing.T) {
-	v := BuildCmd{}
+	v := BuilderMethod{}
 	bts, err := v.MarshalMsg(nil)
 	if err != nil {
 		t.Fatal(err)
@@ -33,7 +33,7 @@ func TestMarshalUnmarshalBuildCmd(t *testing.T) {
 }
 
 func BenchmarkMarshalMsgBuildCmd(b *testing.B) {
-	v := BuildCmd{}
+	v := BuilderMethod{}
 	b.ReportAllocs()
 	b.ResetTimer()
 	for i := 0; i < b.N; i++ {
@@ -42,7 +42,7 @@ func BenchmarkMarshalMsgBuildCmd(b *testing.B) {
 }
 
 func BenchmarkAppendMsgBuildCmd(b *testing.B) {
-	v := BuildCmd{}
+	v := BuilderMethod{}
 	bts := make([]byte, 0, v.Msgsize())
 	bts, _ = v.MarshalMsg(bts[0:0])
 	b.SetBytes(int64(len(bts)))
@@ -54,7 +54,7 @@ func BenchmarkAppendMsgBuildCmd(b *testing.B) {
 }
 
 func BenchmarkUnmarshalBuildCmd(b *testing.B) {
-	v := BuildCmd{}
+	v := BuilderMethod{}
 	bts, _ := v.MarshalMsg(nil)
 	b.ReportAllocs()
 	b.SetBytes(int64(len(bts)))
@@ -68,7 +68,7 @@ func BenchmarkUnmarshalBuildCmd(b *testing.B) {
 }
 
 func TestEncodeDecodeBuildCmd(t *testing.T) {
-	v := BuildCmd{}
+	v := BuilderMethod{}
 	var buf bytes.Buffer
 	msgp.Encode(&buf, &v)
 
@@ -77,7 +77,7 @@ func TestEncodeDecodeBuildCmd(t *testing.T) {
 		t.Log("WARNING: TestEncodeDecodeBuildCmd Msgsize() is inaccurate")
 	}
 
-	vn := BuildCmd{}
+	vn := BuilderMethod{}
 	err := msgp.Decode(&buf, &vn)
 	if err != nil {
 		t.Error(err)
@@ -92,7 +92,7 @@ func TestEncodeDecodeBuildCmd(t *testing.T) {
 }
 
 func BenchmarkEncodeBuildCmd(b *testing.B) {
-	v := BuildCmd{}
+	v := BuilderMethod{}
 	var buf bytes.Buffer
 	msgp.Encode(&buf, &v)
 	b.SetBytes(int64(buf.Len()))
@@ -106,7 +106,7 @@ func BenchmarkEncodeBuildCmd(b *testing.B) {
 }
 
 func BenchmarkDecodeBuildCmd(b *testing.B) {
-	v := BuildCmd{}
+	v := BuilderMethod{}
 	var buf bytes.Buffer
 	msgp.Encode(&buf, &v)
 	b.SetBytes(int64(buf.Len()))

tsconfig.json

@@ -0,0 +1,27 @@
+{
+  "compilerOptions": {
+    // Enable latest features
+    "lib": ["ESNext", "DOM"],
+    "target": "ESNext",
+    "module": "ESNext",
+    "moduleDetection": "force",
+    "jsx": "react-jsx",
+    "allowJs": true,
+
+    // Bundler mode
+    "moduleResolution": "bundler",
+    "allowImportingTsExtensions": true,
+    "verbatimModuleSyntax": true,
+    "noEmit": true,
+
+    // Best practices
+    "strict": true,
+    "skipLibCheck": true,
+    "noFallthroughCasesInSwitch": true,
+
+    // Some stricter flags (disabled by default)
+    "noUnusedLocals": false,
+    "noUnusedParameters": false,
+    "noPropertyAccessFromIndexSignature": false
+  }
+}