Initial set up of ccd-js-gen package

.github/workflows/pipeline.yml

@@ -86,6 +86,7 @@ jobs:
             ./packages/nodejs/lib
             ./packages/common/grpc
             ./packages/nodejs/grpc
+            ./packages/ccd-js-gen/lib
 
   typecheck-examples:
     runs-on: ubuntu-22.04
@@ -158,6 +159,7 @@ jobs:
 
   lint:
     runs-on: ubuntu-22.04
+    needs: build
     if: github.event.pull_request.draft == false
     steps:
       - uses: actions/checkout@v3
@@ -167,6 +169,11 @@ jobs:
           node-version: ${{ env.NODE_VERSION }}
           cache: yarn
 
+      - name: Get build-debug
+        uses: ./.github/actions/download-artifact
+        with:
+          name: build-debug
+
       - name: Install dependencies
         run: yarn install --immutable
 

examples/ccd-js-gen/wCCD/client-tokenMetadata.ts

@@ -0,0 +1,77 @@
+import { credentials } from '@grpc/grpc-js';
+import * as SDK from '@concordium/node-sdk';
+import meow from 'meow';
+import { parseEndpoint } from '../../shared/util';
+
+// The generated module could be imported directly like below,
+// but for this example it is imported dynamicly to improve
+// the error message when not generated.
+// import * as wCCDModule from './lib/wCCD';
+
+const cli = meow(
+    `
+  This example uses a generated smart contract client for the wCCD smart contract.
+
+  Usage
+    $ yarn run-example <path-to-this-file> [options]
+
+  Required
+    --index,     -i  The index of the smart contract. Defaults to 2059, which is wCCD on testnet.
+
+  Options
+    --help,      -h  Displays this message
+    --endpoint,  -e  Specify endpoint of a grpc2 interface of a Concordium node in the format "<scheme>://<address>:<port>". Defaults to 'http://localhost:20000'
+    --subindex,      The subindex of the smart contract. Defaults to 0
+`,
+    {
+        importMeta: import.meta,
+        flags: {
+            endpoint: {
+                type: 'string',
+                alias: 'e',
+                default: 'http://localhost:20000',
+            },
+            index: {
+                type: 'number',
+                alias: 'i',
+                default: 2059,
+            },
+            subindex: {
+                type: 'number',
+                default: 0,
+            },
+        },
+    }
+);
+
+const [address, port, scheme] = parseEndpoint(cli.flags.endpoint);
+const grpcClient = SDK.createConcordiumClient(
+    address,
+    Number(port),
+    scheme === 'https' ? credentials.createSsl() : credentials.createInsecure()
+);
+
+const contractAddress: SDK.ContractAddress = {
+    index: BigInt(cli.flags.index),
+    subindex: BigInt(cli.flags.subindex),
+};
+
+(async () => {
+    // Importing the generated smart contract module client.
+    /* eslint-disable import/no-unresolved */
+    // eslint-disable-next-line @typescript-eslint/ban-ts-comment
+    // @ts-ignore
+    const wCCDModule = await import('./lib/wCCD').catch((e) => {
+        /* eslint-enable import/no-unresolved */
+        console.error(
+            '\nFailed to load the generated wCCD module, did you run the `generate` script?\n'
+        );
+        throw e;
+    });
+
+    const parameter = '010000'; // First 2 bytes for number of tokens to query, 1 byte for the token ID.
+    const contract = new wCCDModule.Cis2WCCD(grpcClient, contractAddress);
+
+    const responseHex = await contract.dryRun.tokenMetadata(parameter);
+    console.log({ responseHex });
+})();

examples/ccd-js-gen/wCCD/generate.ts

@@ -0,0 +1,73 @@
+import { credentials } from '@grpc/grpc-js';
+import * as SDK from '@concordium/node-sdk';
+import * as Gen from '@concordium/ccd-js-gen';
+import * as Path from 'node:path';
+import * as Url from 'node:url';
+import meow from 'meow';
+import { parseEndpoint } from '../../shared/util';
+
+const cli = meow(
+    `
+  This example fetches the wCCD smart contract module source from the chain and generates a typescript client for interacting with such a smart contract.
+
+  Usage
+    $ yarn run-example <path-to-this-file> [options]
+
+  Required
+    --index,     -i  The index of the smart contract. Defaults to 2059, which is wCCD on Testnet.
+
+  Options
+    --help,      -h  Displays this message
+    --endpoint,  -e  Specify endpoint of a grpc2 interface of a Concordium node in the format "address:port". Defaults to 'localhost:20000'
+    --subindex,      The subindex of the smart contract. Defaults to 0
+`,
+    {
+        importMeta: import.meta,
+        flags: {
+            endpoint: {
+                type: 'string',
+                alias: 'e',
+                default: 'localhost:20000',
+            },
+            index: {
+                type: 'number',
+                alias: 'i',
+                isRequired: true,
+                default: 2059,
+            },
+            subindex: {
+                type: 'number',
+                default: 0,
+            },
+        },
+    }
+);
+
+const [address, port] = parseEndpoint(cli.flags.endpoint);
+const grpcClient = SDK.createConcordiumClient(
+    address,
+    Number(port),
+    credentials.createInsecure()
+);
+
+const contractAddress: SDK.ContractAddress = {
+    index: BigInt(cli.flags.index),
+    subindex: BigInt(cli.flags.subindex),
+};
+
+(async () => {
+    console.info(`Fetching instance information for ${contractAddress.index}.`);
+    const info = await grpcClient.getInstanceInfo(contractAddress);
+    console.info(
+        `Fetching smart contract module source with reference '${info.sourceModule.moduleRef}'.`
+    );
+    const moduleSource = await grpcClient.getModuleSource(info.sourceModule);
+    const mod = SDK.Module.fromModuleSource(moduleSource);
+    const filePath = Url.fileURLToPath(import.meta.url);
+    const outDir = Path.join(Path.dirname(filePath), 'lib');
+    console.info(`Generating smart contract module client at '${outDir}'.`);
+    await Gen.generateContractClients(mod, 'wCCD', outDir, {
+        output: 'TypeScript',
+    });
+    console.info('Code generation was successful.');
+})();

examples/package.json

@@ -2,6 +2,8 @@
     "name": "@concordium/examples",
     "type": "module",
     "dependencies": {
+        "@concordium/ccd-js-gen": "workspace:^",
+        "@concordium/common-sdk": "workspace:^",
         "@concordium/node-sdk": "workspace:^",
         "@grpc/grpc-js": "^1.3.4",
         "@noble/ed25519": "^1.7.1",

examples/shared/util.ts

@@ -9,11 +9,27 @@ export const parseAddress = (input: string): Base58String | ContractAddress => {
     return { index: BigInt(i), subindex: BigInt(si) };
 };
 
-export const parseEndpoint = (endpoint: string): [string, number] => {
+// Regular expression for matching the scheme prefix of a URL.
+const schemeRegex = /^(\w+):\/\//;
+
+/**
+ * Parse endpoint information from a string, such as 'http://my-concordium-node:20000'
+ * @param endpoint String with information of an endpoint.
+ * @returns Triple with ['<address>', <port>, '<scheme>'].
+ */
+export const parseEndpoint = (
+    endpoint: string
+): [string, number, string | undefined] => {
+    const result = schemeRegex.exec(endpoint);
+    const matched = result?.[0];
+    const scheme = result?.[1];
+
+    const noSchemeEndpoint = endpoint.substring(matched?.length ?? 0);
+
     // Split endpoint on last colon
-    const lastColonIndex = endpoint.lastIndexOf(':');
-    const address = endpoint.substring(0, lastColonIndex);
-    const port = Number(endpoint.substring(lastColonIndex + 1));
+    const lastColonIndex = noSchemeEndpoint.lastIndexOf(':');
+    const address = noSchemeEndpoint.substring(0, lastColonIndex);
+    const port = Number(noSchemeEndpoint.substring(lastColonIndex + 1));
 
-    return [address, port];
+    return [address, port, scheme];
 };

package.json

@@ -6,6 +6,7 @@
             "./packages/common",
             "./packages/nodejs",
             "./packages/web",
+            "./packages/ccd-js-gen",
             "./examples"
         ]
     },

packages/ccd-js-gen/bin/ccd-js-gen.js

@@ -0,0 +1,4 @@
+#!/usr/bin/env node
+// eslint-disable-next-line @typescript-eslint/no-var-requires
+const cli = require('../lib/src/cli.js');
+cli.main();

packages/ccd-js-gen/package.json

@@ -0,0 +1,52 @@
+{
+    "name": "@concordium/ccd-js-gen",
+    "version": "1.0.0",
+    "description": "Generate JS clients for the Concordium Blockchain",
+    "bin": "bin/ccd-js-gen.js",
+    "main": "lib/src/lib.js",
+    "typings": "lib/src/lib.d.ts",
+    "scripts": {
+        "build": "tsc",
+        "build-dev": "yarn build",
+        "clean": "rm -r lib",
+        "lint": "eslint src/** bin/** --cache --ext .ts,.js --max-warnings 0",
+        "lint-fix": "yarn --silent lint --fix; exit 0",
+        "test": "echo \"Error: no test specified\" && exit 1"
+    },
+    "keywords": [
+        "concordium",
+        "smart-contracts"
+    ],
+    "repository": {
+        "type": "git",
+        "url": "https://github.com/Concordium/concordium-node-sdk-js",
+        "directory": "packages/ccd-js-gen"
+    },
+    "author": {
+        "name": "Concordium Software",
+        "email": "[email protected]",
+        "url": "https://concordium.com"
+    },
+    "license": "Apache-2.0",
+    "dependencies": {
+        "@concordium/common-sdk": "9.3.0",
+        "buffer": "^6.0.3",
+        "commander": "^11.0.0",
+        "ts-morph": "^19.0.0"
+    },
+    "devDependencies": {
+        "@types/node": "^20.5.0",
+        "@typescript-eslint/eslint-plugin": "^4.28.1",
+        "@typescript-eslint/parser": "^4.28.1",
+        "eslint": "^7.29.0",
+        "eslint-config-prettier": "^8.3.0",
+        "eslint-plugin-import": "^2.23.4",
+        "eslint-plugin-prettier": "^3.4.0",
+        "prettier": "^2.3.2",
+        "typescript": "^4.3.5"
+    },
+    "prettier": {
+        "singleQuote": true,
+        "tabWidth": 4
+    }
+}

packages/ccd-js-gen/src/cli.ts

@@ -0,0 +1,34 @@
+/*
+This file contains code for building the command line inferface to the ccd-js-gen library.
+*/
+import { Command } from 'commander';
+import packageJson from '../package.json';
+import * as lib from './lib';
+
+/** Type representing the CLI options/arguments and needs to match the options set with commander.js */
+type Options = {
+    /** Smart contract module to generate clients from */
+    module: string;
+    /** The output directory for the generated code */
+    outDir: string;
+};
+
+// Main function, which is called be the executable script in `bin`.
+export async function main(): Promise<void> {
+    const program = new Command();
+    program
+        .name(packageJson.name)
+        .description(packageJson.description)
+        .version(packageJson.version)
+        .requiredOption(
+            '-m, --module <module-file>',
+            'Smart contract module to generate clients from'
+        )
+        .requiredOption(
+            '-o, --out-dir <directory>',
+            'The output directory for the generated code'
+        )
+        .parse(process.argv);
+    const options = program.opts<Options>();
+    await lib.generateContractClientsFromFile(options.module, options.outDir);
+}