configuration.html
1 <!DOCTYPE html> 2 <html lang="en" dir="ltr"> 3 <head prefix="og: http://ogp.me/ns#"> 4 <meta charset="utf-8"> 5 <title>Configuring Embark | Embark</title> 6 <meta http-equiv="X-UA-Compatible" content="IE=Edge,chrome=1"> 7 <meta name="viewport" content="width=device-width, initial-scale=1"> 8 <!-- Canonical links --> 9 <link rel="canonical" href="https://framework.embarklabs.io/docs/configuration.html"> 10 <!-- Alternative links --> 11 12 13 <!-- Icon --> 14 <meta name="msapplication-TileColor" content="#080E1A"> 15 <link rel="icon" type="image/png" href="/assets/images/favicon-16.png" sizes="16x16" /> 16 <link rel="icon" type="image/png" href="/assets/images/favicon-32.png" sizes="32x32" /> 17 18 <link rel="apple-touch-icon" sizes="76x76" href="/assets/images/apple-touch-icon-60x60-precomposed.png"> 19 <link rel="apple-touch-icon" sizes="76x76" href="/assets/images/apple-touch-icon-76x76-precomposed.png"> 20 <link rel="apple-touch-icon" sizes="120x120" href="/assets/images/apple-touch-icon-120x120-precomposed.png"> 21 <link rel="apple-touch-icon" sizes="152x152" href="/assets/images/apple-touch-icon-152x152-precomposed.png"> 22 <link rel="apple-touch-icon" sizes="180x180" href="/assets/images/apple-touch-icon-precomposed.png"> 23 <link rel="apple-touch-icon" href="/assets/images/apple-touch-icon-precomposed.png"> 24 <!-- CSS --> 25 26 <link rel="stylesheet" href="/css/embark.css"> 27 28 <!-- endbuild --> 29 30 <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/font-awesome/4.3.0/css/font-awesome.min.css"> 31 <link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/docsearch.js@2/dist/cdn/docsearch.min.css" /> 32 33 <!-- RSS --> 34 <link rel="alternate" href="/atom.xml" title="Embark"> 35 <meta property="og:image" content="/img/share.png?v=0.0.5" /> 36 <link rel="stylesheet" href="//cdnjs.cloudflare.com/ajax/libs/highlight.js/9.15.4/styles/dracula.min.css"> 37 38 <script async defer src="https://buttons.github.io/buttons.js"></script> 39 40 41 <script> 42 !function(root, factory) { 43 "function" == typeof define && define.amd ? // AMD. 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role="navigation" class="c-navigation"> 160 <div class="c-navigation__header"> 161 <a href="/" title="Embark" class="c-logo">Embark</a> 162 <button class="c-navigation__close u-text-light" title="Close menu"> 163 <svg class="c-icon c-icon--xs"><use xlink:href="/../assets/icons/symbols.svg#icon-close"></use></svg> 164 </button> 165 </div> 166 <div class="c-navigation__body"> 167 <ul class="c-navigation__list"> 168 <li class="c-navigation__item"> 169 <a href="/docs/quick_start.html" class="c-navigation__anchor " title="Quick Start">Quick Start</a> 170 </li> 171 <li class="c-navigation__item"> 172 <a href="/docs" class="c-navigation__anchor is-active" title="Learn">Learn</a> 173 </li> 174 <li class="c-navigation__item"> 175 <a href="/plugins" class="c-navigation__anchor " title="Plugins">Plugins</a> 176 </li> 177 <li class="c-navigation__item"> 178 <a href="/community" class="c-navigation__anchor " title="Community">Community</a> 179 </li> 180 <li class="c-navigation__item"> 181 <a href="https://blog.embarklabs.io" target="_blank" rel="noopener" class="c-navigation__anchor " title="Blog">Blog</a> 182 </li> 183 </ul> 184 </div> 185 </nav> 186 <div class="o-flex o-flex-center"> 187 <form action="" class="o-flex__item u-hidden-until-large"> 188 <input type="search" placeholder="Search" id="search-input"> 189 </form> 190 <div class="o-flex__item"> 191 <ul class="o-flex o-flex-center"> 192 <li class="o-flex__item"> 193 <a href="https://github.com/embarklabs/embark" title="Github" target="_blank" class="u-link-ghost"> 194 <svg class="c-icon"><use xlink:href="/../assets/icons/symbols.svg#icon-github"></use></svg> 195 </a> 196 </li> 197 <li class="o-flex__item"> 198 <a href="https://twitter.com/EmbarkProject" title="Twitter" target="_blank"> 199 <svg class="c-icon"><use xlink:href="/../assets/icons/symbols.svg#icon-twitter"></use></svg> 200 </a> 201 </li> 202 <li class="o-flex__item u-hidden-large-up"> 203 <button type="button"class="c-navigation__trigger u-link-ghost" title="Open menu"> 204 <svg class="c-icon"><use xlink:href="/../assets/icons/symbols.svg#icon-navigation-menu"></use></svg> 205 </button> 206 </li> 207 </ul> 208 </div> 209 </div> 210 </div> 211 <div class="c-quick-search o-distance-m u-hidden-large-up"> 212 <input type="search" id="inp-search" placeholder="Search"> 213 </div> 214 <div class="c-header__body"> 215 <h1 class="c-title u-text-ghost">Documentation</h1> 216 217 218 219 220 221 </div> 222 </div> 223 </header> 224 225 226 <main role="main"> 227 <section class="o-guided-content o-distance"> 228 <div class="o-guided-content__wrapper"> 229 <button title="Open docs menu" id="guides-trigger" class="c-button c-button--minion u-hidden-large-up"> 230 <svg class="c-icon c-icon--xs"><use xlink:href="/../../assets/icons/symbols.svg#icon-navigation-menu"></use></svg> 231 <span>Guides</span> 232 </button> 233 <div class="c-guide o-guided-content__guide" id="guide-navigation"> 234 <div class="c-guide__header u-hidden-large-up"> 235 <a href="" title="Guides"> 236 Guides 237 </a> 238 <button type="button" title="Close menu" id="guides-close"> 239 <svg class="c-icon c-icon--xs"><use xlink:href="/../../assets/icons/symbols.svg#icon-close"></use></svg> 240 </button> 241 </div> 242 <div class="c-guide__body"> 243 <nav role="navigation"> 244 245 <div class=""> 246 <h3 class="c-category-title">Getting Started</h3> 247 <ul class="o-list-bare"> 248 249 <li class="o-list-bare__item"> 250 <a href="/docs/overview.html" title="Overview" class="u-link-uniform ">Overview</a> 251 <!-- <div class="o-distance-m"> 252 <ul class="o-list-bare c-navigation__subnav"> 253 <li class="o-list-bare__item"> 254 <a href="#" title="What is Embark?" class="u-link-uniform">What is Embark?</a> 255 </li> 256 </ul> 257 </div> --> 258 </li> 259 260 <li class="o-list-bare__item"> 261 <a href="/docs/installation.html" title="Installation" class="u-link-uniform ">Installation</a> 262 <!-- <div class="o-distance-m"> 263 <ul class="o-list-bare c-navigation__subnav"> 264 <li class="o-list-bare__item"> 265 <a href="#" title="What is Embark?" class="u-link-uniform">What is Embark?</a> 266 </li> 267 </ul> 268 </div> --> 269 </li> 270 271 <li class="o-list-bare__item"> 272 <a href="/docs/faq.html" title="FAQ" class="u-link-uniform ">FAQ</a> 273 <!-- <div class="o-distance-m"> 274 <ul class="o-list-bare c-navigation__subnav"> 275 <li class="o-list-bare__item"> 276 <a href="#" title="What is Embark?" class="u-link-uniform">What is Embark?</a> 277 </li> 278 </ul> 279 </div> --> 280 </li> 281 282 </ul> 283 284 285 <div class="o-distance-xl"> 286 <h3 class="c-category-title">General Usage</h3> 287 <ul class="o-list-bare"> 288 289 <li class="o-list-bare__item"> 290 <a href="/docs/create_project.html" title="Creating apps" class="u-link-uniform ">Creating apps</a> 291 <!-- <div class="o-distance-m"> 292 <ul class="o-list-bare c-navigation__subnav"> 293 <li class="o-list-bare__item"> 294 <a href="#" title="What is Embark?" class="u-link-uniform">What is Embark?</a> 295 </li> 296 </ul> 297 </div> --> 298 </li> 299 300 <li class="o-list-bare__item"> 301 <a href="/docs/structure.html" title="App structure" class="u-link-uniform ">App structure</a> 302 <!-- <div class="o-distance-m"> 303 <ul class="o-list-bare c-navigation__subnav"> 304 <li class="o-list-bare__item"> 305 <a href="#" title="What is Embark?" class="u-link-uniform">What is Embark?</a> 306 </li> 307 </ul> 308 </div> --> 309 </li> 310 311 <li class="o-list-bare__item"> 312 <a href="/docs/running_apps.html" title="Running apps" class="u-link-uniform ">Running apps</a> 313 <!-- <div class="o-distance-m"> 314 <ul class="o-list-bare c-navigation__subnav"> 315 <li class="o-list-bare__item"> 316 <a href="#" title="What is Embark?" class="u-link-uniform">What is Embark?</a> 317 </li> 318 </ul> 319 </div> --> 320 </li> 321 322 <li class="o-list-bare__item"> 323 <a href="/docs/dashboard.html" title="Using the dashboard" class="u-link-uniform ">Using the dashboard</a> 324 <!-- <div class="o-distance-m"> 325 <ul class="o-list-bare c-navigation__subnav"> 326 <li class="o-list-bare__item"> 327 <a href="#" title="What is Embark?" class="u-link-uniform">What is Embark?</a> 328 </li> 329 </ul> 330 </div> --> 331 </li> 332 333 <li class="o-list-bare__item"> 334 <a href="/docs/using_the_console.html" title="Using the console" class="u-link-uniform ">Using the console</a> 335 <!-- <div class="o-distance-m"> 336 <ul class="o-list-bare c-navigation__subnav"> 337 <li class="o-list-bare__item"> 338 <a href="#" title="What is Embark?" class="u-link-uniform">What is Embark?</a> 339 </li> 340 </ul> 341 </div> --> 342 </li> 343 344 <li class="o-list-bare__item"> 345 <a href="/docs/environments.html" title="Environments" class="u-link-uniform ">Environments</a> 346 <!-- <div class="o-distance-m"> 347 <ul class="o-list-bare c-navigation__subnav"> 348 <li class="o-list-bare__item"> 349 <a href="#" title="What is Embark?" class="u-link-uniform">What is Embark?</a> 350 </li> 351 </ul> 352 </div> --> 353 </li> 354 355 <li class="o-list-bare__item"> 356 <a href="/docs/configuration.html" title="Configuration" class="u-link-uniform is-active">Configuration</a> 357 <!-- <div class="o-distance-m"> 358 <ul class="o-list-bare c-navigation__subnav"> 359 <li class="o-list-bare__item"> 360 <a href="#" title="What is Embark?" class="u-link-uniform">What is Embark?</a> 361 </li> 362 </ul> 363 </div> --> 364 </li> 365 366 <li class="o-list-bare__item"> 367 <a href="/docs/pipeline_and_webpack.html" title="Building & Compiling" class="u-link-uniform ">Building & Compiling</a> 368 <!-- <div class="o-distance-m"> 369 <ul class="o-list-bare c-navigation__subnav"> 370 <li class="o-list-bare__item"> 371 <a href="#" title="What is Embark?" class="u-link-uniform">What is Embark?</a> 372 </li> 373 </ul> 374 </div> --> 375 </li> 376 377 <li class="o-list-bare__item"> 378 <a href="/docs/executing_scripts.html" title="Executing Scripts" class="u-link-uniform ">Executing Scripts</a> 379 <!-- <div class="o-distance-m"> 380 <ul class="o-list-bare c-navigation__subnav"> 381 <li class="o-list-bare__item"> 382 <a href="#" title="What is Embark?" class="u-link-uniform">What is Embark?</a> 383 </li> 384 </ul> 385 </div> --> 386 </li> 387 388 <li class="o-list-bare__item"> 389 <a href="/docs/javascript_usage.html" title="Using EmbarkJS" class="u-link-uniform ">Using EmbarkJS</a> 390 <!-- <div class="o-distance-m"> 391 <ul class="o-list-bare c-navigation__subnav"> 392 <li class="o-list-bare__item"> 393 <a href="#" title="What is Embark?" class="u-link-uniform">What is Embark?</a> 394 </li> 395 </ul> 396 </div> --> 397 </li> 398 399 </ul> 400 </div> 401 402 <div class="o-distance-xl"> 403 <h3 class="c-category-title">Smart Contract Development</h3> 404 <ul class="o-list-bare"> 405 406 <li class="o-list-bare__item"> 407 <a href="/docs/contracts_configuration.html" title="Configuration" class="u-link-uniform ">Configuration</a> 408 <!-- <div class="o-distance-m"> 409 <ul class="o-list-bare c-navigation__subnav"> 410 <li class="o-list-bare__item"> 411 <a href="#" title="What is Embark?" class="u-link-uniform">What is Embark?</a> 412 </li> 413 </ul> 414 </div> --> 415 </li> 416 417 <li class="o-list-bare__item"> 418 <a href="/docs/contracts_deployment.html" title="Accounts & Deployment" class="u-link-uniform ">Accounts & Deployment</a> 419 <!-- <div class="o-distance-m"> 420 <ul class="o-list-bare c-navigation__subnav"> 421 <li class="o-list-bare__item"> 422 <a href="#" title="What is Embark?" class="u-link-uniform">What is Embark?</a> 423 </li> 424 </ul> 425 </div> --> 426 </li> 427 428 <li class="o-list-bare__item"> 429 <a href="/docs/contracts_imports.html" title="Special Imports" class="u-link-uniform ">Special Imports</a> 430 <!-- <div class="o-distance-m"> 431 <ul class="o-list-bare c-navigation__subnav"> 432 <li class="o-list-bare__item"> 433 <a href="#" title="What is Embark?" class="u-link-uniform">What is Embark?</a> 434 </li> 435 </ul> 436 </div> --> 437 </li> 438 439 <li class="o-list-bare__item"> 440 <a href="/docs/contracts_testing.html" title="Testing" class="u-link-uniform ">Testing</a> 441 <!-- <div class="o-distance-m"> 442 <ul class="o-list-bare c-navigation__subnav"> 443 <li class="o-list-bare__item"> 444 <a href="#" title="What is Embark?" class="u-link-uniform">What is Embark?</a> 445 </li> 446 </ul> 447 </div> --> 448 </li> 449 450 <li class="o-list-bare__item"> 451 <a href="/docs/contracts_javascript.html" title="Smart Contracts in JavaScript" class="u-link-uniform ">Smart Contracts in JavaScript</a> 452 <!-- <div class="o-distance-m"> 453 <ul class="o-list-bare c-navigation__subnav"> 454 <li class="o-list-bare__item"> 455 <a href="#" title="What is Embark?" class="u-link-uniform">What is Embark?</a> 456 </li> 457 </ul> 458 </div> --> 459 </li> 460 461 </ul> 462 </div> 463 464 <div class="o-distance-xl"> 465 <h3 class="c-category-title">Blockchain Client</h3> 466 <ul class="o-list-bare"> 467 468 <li class="o-list-bare__item"> 469 <a href="/docs/blockchain_configuration.html" title="Configuration" class="u-link-uniform ">Configuration</a> 470 <!-- <div class="o-distance-m"> 471 <ul class="o-list-bare c-navigation__subnav"> 472 <li class="o-list-bare__item"> 473 <a href="#" title="What is Embark?" class="u-link-uniform">What is Embark?</a> 474 </li> 475 </ul> 476 </div> --> 477 </li> 478 479 <li class="o-list-bare__item"> 480 <a href="/docs/blockchain_accounts_configuration.html" title="Managing Accounts" class="u-link-uniform ">Managing Accounts</a> 481 <!-- <div class="o-distance-m"> 482 <ul class="o-list-bare c-navigation__subnav"> 483 <li class="o-list-bare__item"> 484 <a href="#" title="What is Embark?" class="u-link-uniform">What is Embark?</a> 485 </li> 486 </ul> 487 </div> --> 488 </li> 489 490 </ul> 491 </div> 492 493 <div class="o-distance-xl"> 494 <h3 class="c-category-title">Storage (IPFS/Swarm)</h3> 495 <ul class="o-list-bare"> 496 497 <li class="o-list-bare__item"> 498 <a href="/docs/storage_configuration.html" title="Configuration" class="u-link-uniform ">Configuration</a> 499 <!-- <div class="o-distance-m"> 500 <ul class="o-list-bare c-navigation__subnav"> 501 <li class="o-list-bare__item"> 502 <a href="#" title="What is Embark?" class="u-link-uniform">What is Embark?</a> 503 </li> 504 </ul> 505 </div> --> 506 </li> 507 508 <li class="o-list-bare__item"> 509 <a href="/docs/storage_deployment.html" title="Deploying apps" class="u-link-uniform ">Deploying apps</a> 510 <!-- <div class="o-distance-m"> 511 <ul class="o-list-bare c-navigation__subnav"> 512 <li class="o-list-bare__item"> 513 <a href="#" title="What is Embark?" class="u-link-uniform">What is Embark?</a> 514 </li> 515 </ul> 516 </div> --> 517 </li> 518 519 <li class="o-list-bare__item"> 520 <a href="/docs/storage_javascript.html" title="Storage APIs in JavaScript" class="u-link-uniform ">Storage APIs in JavaScript</a> 521 <!-- <div class="o-distance-m"> 522 <ul class="o-list-bare c-navigation__subnav"> 523 <li class="o-list-bare__item"> 524 <a href="#" title="What is Embark?" class="u-link-uniform">What is Embark?</a> 525 </li> 526 </ul> 527 </div> --> 528 </li> 529 530 </ul> 531 </div> 532 533 <div class="o-distance-xl"> 534 <h3 class="c-category-title">Messages (Whisper)</h3> 535 <ul class="o-list-bare"> 536 537 <li class="o-list-bare__item"> 538 <a href="/docs/messages_configuration.html" title="Configuration" class="u-link-uniform ">Configuration</a> 539 <!-- <div class="o-distance-m"> 540 <ul class="o-list-bare c-navigation__subnav"> 541 <li class="o-list-bare__item"> 542 <a href="#" title="What is Embark?" class="u-link-uniform">What is Embark?</a> 543 </li> 544 </ul> 545 </div> --> 546 </li> 547 548 <li class="o-list-bare__item"> 549 <a href="/docs/messages_javascript.html" title="Messages in JavaScript" class="u-link-uniform ">Messages in JavaScript</a> 550 <!-- <div class="o-distance-m"> 551 <ul class="o-list-bare c-navigation__subnav"> 552 <li class="o-list-bare__item"> 553 <a href="#" title="What is Embark?" class="u-link-uniform">What is Embark?</a> 554 </li> 555 </ul> 556 </div> --> 557 </li> 558 559 </ul> 560 </div> 561 562 <div class="o-distance-xl"> 563 <h3 class="c-category-title">Naming Systems (ENS)</h3> 564 <ul class="o-list-bare"> 565 566 <li class="o-list-bare__item"> 567 <a href="/docs/naming_configuration.html" title="Configuration" class="u-link-uniform ">Configuration</a> 568 <!-- <div class="o-distance-m"> 569 <ul class="o-list-bare c-navigation__subnav"> 570 <li class="o-list-bare__item"> 571 <a href="#" title="What is Embark?" class="u-link-uniform">What is Embark?</a> 572 </li> 573 </ul> 574 </div> --> 575 </li> 576 577 <li class="o-list-bare__item"> 578 <a href="/docs/naming_javascript.html" title="Naming Systems in JavaScript" class="u-link-uniform ">Naming Systems in JavaScript</a> 579 <!-- <div class="o-distance-m"> 580 <ul class="o-list-bare c-navigation__subnav"> 581 <li class="o-list-bare__item"> 582 <a href="#" title="What is Embark?" class="u-link-uniform">What is Embark?</a> 583 </li> 584 </ul> 585 </div> --> 586 </li> 587 588 </ul> 589 </div> 590 591 <div class="o-distance-xl"> 592 <h3 class="c-category-title">Plugins</h3> 593 <ul class="o-list-bare"> 594 595 <li class="o-list-bare__item"> 596 <a href="/docs/installing_plugins.html" title="Installing plugins" class="u-link-uniform ">Installing plugins</a> 597 <!-- <div class="o-distance-m"> 598 <ul class="o-list-bare c-navigation__subnav"> 599 <li class="o-list-bare__item"> 600 <a href="#" title="What is Embark?" class="u-link-uniform">What is Embark?</a> 601 </li> 602 </ul> 603 </div> --> 604 </li> 605 606 <li class="o-list-bare__item"> 607 <a href="/docs/creating_plugins.html" title="Creating plugins" class="u-link-uniform ">Creating plugins</a> 608 <!-- <div class="o-distance-m"> 609 <ul class="o-list-bare c-navigation__subnav"> 610 <li class="o-list-bare__item"> 611 <a href="#" title="What is Embark?" class="u-link-uniform">What is Embark?</a> 612 </li> 613 </ul> 614 </div> --> 615 </li> 616 617 <li class="o-list-bare__item"> 618 <a href="/docs/plugin_reference.html" title="Plugin APIs" class="u-link-uniform ">Plugin APIs</a> 619 <!-- <div class="o-distance-m"> 620 <ul class="o-list-bare c-navigation__subnav"> 621 <li class="o-list-bare__item"> 622 <a href="#" title="What is Embark?" class="u-link-uniform">What is Embark?</a> 623 </li> 624 </ul> 625 </div> --> 626 </li> 627 628 </ul> 629 </div> 630 631 <div class="o-distance-xl"> 632 <h3 class="c-category-title">Cockpit Guides</h3> 633 <ul class="o-list-bare"> 634 635 <li class="o-list-bare__item"> 636 <a href="/docs/cockpit_introduction.html" title="Introduction" class="u-link-uniform ">Introduction</a> 637 <!-- <div class="o-distance-m"> 638 <ul class="o-list-bare c-navigation__subnav"> 639 <li class="o-list-bare__item"> 640 <a href="#" title="What is Embark?" class="u-link-uniform">What is Embark?</a> 641 </li> 642 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</ul> 698 </div> --> 699 </li> 700 701 </ul> 702 </div> 703 704 <div class="o-distance-xl"> 705 <h3 class="c-category-title">Reference</h3> 706 <ul class="o-list-bare"> 707 708 <li class="o-list-bare__item"> 709 <a href="/docs/embark_commands.html" title="CLI Commands" class="u-link-uniform ">CLI Commands</a> 710 <!-- <div class="o-distance-m"> 711 <ul class="o-list-bare c-navigation__subnav"> 712 <li class="o-list-bare__item"> 713 <a href="#" title="What is Embark?" class="u-link-uniform">What is Embark?</a> 714 </li> 715 </ul> 716 </div> --> 717 </li> 718 719 </ul> 720 </div> 721 722 <div class="o-distance-xl"> 723 <h3 class="c-category-title">Miscellaneous</h3> 724 <ul class="o-list-bare"> 725 726 <li class="o-list-bare__item"> 727 <a href="/docs/migrating_from_3.x.html" title="Migrating from Embark 3.x" class="u-link-uniform ">Migrating from Embark 3.x</a> 728 <!-- <div class="o-distance-m"> 729 <ul class="o-list-bare c-navigation__subnav"> 730 <li class="o-list-bare__item"> 731 <a href="#" title="What is Embark?" class="u-link-uniform">What is Embark?</a> 732 </li> 733 </ul> 734 </div> --> 735 </li> 736 737 <li class="o-list-bare__item"> 738 <a href="/docs/troubleshooting.html" title="Troubleshooting" class="u-link-uniform ">Troubleshooting</a> 739 <!-- <div class="o-distance-m"> 740 <ul class="o-list-bare c-navigation__subnav"> 741 <li class="o-list-bare__item"> 742 <a href="#" title="What is Embark?" class="u-link-uniform">What is Embark?</a> 743 </li> 744 </ul> 745 </div> --> 746 </li> 747 748 <li class="o-list-bare__item"> 749 <a href="/docs/contributing.html" title="Contributing" class="u-link-uniform ">Contributing</a> 750 <!-- <div class="o-distance-m"> 751 <ul class="o-list-bare c-navigation__subnav"> 752 <li class="o-list-bare__item"> 753 <a href="#" title="What is Embark?" class="u-link-uniform">What is Embark?</a> 754 </li> 755 </ul> 756 </div> --> 757 </li> 758 759 </ul> 760 </div> 761 762 </nav> 763 </div> 764 </div> 765 <div class="o-guided-content__content"> 766 <p class="c-meta">Last updated: January 19th 2020 767 (<a href="https://github.com/embarklabs/embark/edit/master/site/source/docs/configuration.md" target="_blank"> 768 Improve this guide <svg class="c-icon c-icon--xs"><use xlink:href="/../../assets/icons/symbols.svg#icon-pen-write-paper"></use></svg> 769 </a>) 770 </p> 771 <div class="o-standard-page"> 772 <h1>Configuring Embark</h1> 773 <p>Embark offers a lot of fine control when it comes to configuring the different parts of our decentralized application. In this guide we’ll take a closer look at the basic configuration options provided by our application’s <code>embark.json</code> file, which are mainly relevant for, but not restricted to, our application structure.</p> 774 <p>For configuration options related to connecting to a blockchain client, <a href="contracts_configuration.html">deploying your Smart Contracts</a>, <a href="storage_configuration.html">decentralized storage</a>, <a href="messages_configuration">Whisper</a> or <a href="naming_configuration.html">ENS</a>, please head over to the dedicated configuration guides respectively.</p> 775 <h2 id="Overview"><a href="#Overview" class="headerlink" title="Overview"></a>Overview</h2><p>Every application <a href="create_project.html">created with Embark</a> comes with an <code>embark.json</code> file. This file configures where Embark has to look for Smart Contract files and assets, as well as plugins options. Here’s what a freshly scaffolded <code>embark.json</code> file could look like:</p> 776 <figure class="highlight plain"><table><tr><td class="code"><pre><span class="line">{</span><br><span class="line"> "contracts": ["contracts/**"],</span><br><span class="line"> "app": {</span><br><span class="line"> "js/dapp.js": ["app/dapp.js"],</span><br><span class="line"> "index.html": "app/index.html",</span><br><span class="line"> "images/": ["app/images/**"]</span><br><span class="line"> },</span><br><span class="line"> "buildDir": "dist/",</span><br><span class="line"> "generationDir": "embarkArtifacts",</span><br><span class="line"> "config": "config/",</span><br><span class="line"> "versions": {</span><br><span class="line"> "solc": "0.4.25"</span><br><span class="line"> },</span><br><span class="line"> "plugins": {</span><br><span class="line"> },</span><br><span class="line"> "options": {</span><br><span class="line"> "solc": {</span><br><span class="line"> "optimize": true,</span><br><span class="line"> "optimize-runs": 200</span><br><span class="line"> }</span><br><span class="line"> }</span><br><span class="line">}</span><br></pre></td></tr></table></figure> 777 778 <p>Let’s look at the different options and learn what they do and mean.</p> 779 <h3 id="contracts"><a href="#contracts" class="headerlink" title="contracts"></a>contracts</h3><p>This is a list of directories in which Embark should look for Smart Contract files. These typically are globbing patterns (e.g <code>["contracts/**/*.sol"]</code> will match all sol files inside any folders inside <code>contracts/</code>).</p> 780 <h3 id="app"><a href="#app" class="headerlink" title="app"></a>app</h3><p>Everything inside <code>app</code> configures the assets of our application, which could be anything from HTML, JavaScript to CSS and other assets. JavaScript source files are compiled using webpack to create a bundle, all other file types are simply copied to the specified destination.</p> 781 <p>In the key/value pairs of <code>app</code>, every key describes the destination, while the value describes a list of glob patterns for files to be transformed and copied.</p> 782 <ul> 783 <li><strong>js/dapp.js</strong> - This is the JavaScript bundle that contains our application. Specifically, all files that are defined in this option (<code>app/dapp.js</code>).</li> 784 <li><strong>index.html</strong> - The entry point of our application (<code>app/index.html</code>)</li> 785 <li><strong>images</strong> - All image assets of our application that we can find in <code>app/images/</code>.</li> 786 </ul> 787 <p>Change these configurations as you need.</p> 788 <h3 id="buildDir"><a href="#buildDir" class="headerlink" title="buildDir"></a>buildDir</h3><p>The directory to which the build artifacts are being moved to. Everything inside this configured folder can be considered a production ready build (default is <code>dist/</code>).</p> 789 <div class="c-notification c-notification--info"> 790 <p><strong>Important note:</strong></p> 791 <p><p>When using Embark with any other complementary CLI tool for building a DApp, such as Create-React-App or Angular CLI, <code>buildDir</code> should point at the same location as the complementary tool writes its distribution files to.</p> 792 <p>This is important so that Embark picks up the right files when doing things like <a href="/docs/storage_deployment.html">deploying your app</a> on IPFS or Swarm.</p> 793 </p> 794 </div> 795 796 797 798 <h3 id="generationDir"><a href="#generationDir" class="headerlink" title="generationDir"></a>generationDir</h3><p>A directory in which Embark is going to generate artifacts that can be used for DApp development. This include Smart Contract ABIs as well Embark specific configuration data extracted from the project’s configuration. The default name of this directory is <code>embarkArtifacts</code>. To learn more about Embark Artifacts, head over to our guide on <a href="/docs/javascript_usage.html">Using EmbarkJS</a>.</p> 799 <h3 id="config"><a href="#config" class="headerlink" title="config"></a>config</h3><p>This is the location of the configuration files. There are different options to configure those:</p> 800 <ul> 801 <li><strong>A string</strong> (e.g <code>"config/"</code>) - Will assume the directory in which the configuration files are located (<code>blockchain.js</code>, <code>contracts.js</code>, etc).</li> 802 <li><strong>An object</strong>:<ul> 803 <li>Each property would configure the path of each configuration file</li> 804 <li>Configuration properties can be set to false to disable the component/service in question</li> 805 </ul> 806 </li> 807 </ul> 808 <figure class="highlight plain"><table><tr><td class="code"><pre><span class="line">...</span><br><span class="line">"config": {</span><br><span class="line"> "contracts": "contracts.js",</span><br><span class="line"> "blockchain": false,</span><br><span class="line"> "storage": false,</span><br><span class="line"> "communication": false,</span><br><span class="line"> "webserver": false</span><br><span class="line">},</span><br><span class="line">...</span><br></pre></td></tr></table></figure> 809 810 <h3 id="versions-3rd-party-libraries"><a href="#versions-3rd-party-libraries" class="headerlink" title="versions (3rd-party libraries)"></a>versions (3rd-party libraries)</h3><p>Here you can optionally specify the versions of the library to be used by Embark. Embark will automatically download the specific library version if necessary.</p> 811 <p>Currently, <code>solc</code> is the only library that can be specified in this way. It’s possible to override the <code>solc</code> version in other configuration files such as <code>contracts.json</code> on a per environment basis.</p> 812 <h3 id="plugins"><a href="#plugins" class="headerlink" title="plugins"></a>plugins</h3><p>This is a list of installed plugins. For more information on Plugins, head over to our <a href="/docs/installing_plugins.html">Plugins guide</a>.</p> 813 <h3 id="options"><a href="#options" class="headerlink" title="options"></a>options</h3><p>The <code>options</code> property enable us to configure options for specific components and services of Embark and our application. Currently supported are options for the <code>solc</code> compiler, as well as options related to Embark’s <code>reset</code> command:</p> 814 <figure class="highlight plain"><table><tr><td class="code"><pre><span class="line">...</span><br><span class="line"> "options": {</span><br><span class="line"> "solc": {</span><br><span class="line"> "optimize": true,</span><br><span class="line"> "optimize-runs": 200</span><br><span class="line"> },</span><br><span class="line"> }</span><br><span class="line">...</span><br></pre></td></tr></table></figure> 815 816 <h2 id="Configuring-Embark’s-reset-command"><a href="#Configuring-Embark’s-reset-command" class="headerlink" title="Configuring Embark’s reset command"></a>Configuring Embark’s reset command</h2><p>As mentioned in the section above, it’s possible to configure how Embark behaves when <a href="/docs/running_apps.html#Resetting-apps">resetting projects</a>. Most of the time, the default configuration should do the trick, however, if we need more control over what files should be removed as part of the reset, we can do that using the <code>reset</code> option.</p> 817 <p>It comes with two properties:</p> 818 <ul> 819 <li><strong>defaults</strong> - Tells Embark whether it should reset the default files it usually resets or not</li> 820 <li><strong>files</strong> - A list of files Embark should remove as well when resetting the project</li> 821 </ul> 822 <p>With these two options we have full control over what files <code>reset</code> will remove.</p> 823 <figure class="highlight plain"><table><tr><td class="code"><pre><span class="line">...</span><br><span class="line"> "options": {</span><br><span class="line"> "reset": {</span><br><span class="line"> "defaults": true,</span><br><span class="line"> "files": ["some/other/file"]</span><br><span class="line"> }</span><br><span class="line"> }</span><br><span class="line">...</span><br></pre></td></tr></table></figure> 824 825 </div> 826 <div class="o-container-medium o-distance-l"> 827 <div class="o-flex o-flex-space-between"> 828 829 <div class="o-flex__item"> 830 <a href="/docs/environments.html" class="c-button c-button--quite" title="Previous article">Previous</a> 831 </div> 832 833 834 <div class="o-flex__item"> 835 <a href="/docs/pipeline_and_webpack.html" class="c-button c-button--quite" title="Next article">Next</a> 836 </div> 837 838 </div> 839 840 841 </div> 842 </div> 843 <div class="o-guided-content__addition"> 844 <h3 class="c-category-title">Contents</h3> 845 <ol class="o-list-bare"><li class="o-list-bare__item o-list-bare-level-2 o-ellipsis"><a href="#Overview" class="u-link-uniform">Overview</a><ol class="o-list-bare__child"><li class="o-list-bare__item o-list-bare-level-3 o-ellipsis"><a href="#contracts" class="u-link-uniform">contracts</a></li><li class="o-list-bare__item o-list-bare-level-3 o-ellipsis"><a href="#app" class="u-link-uniform">app</a></li><li class="o-list-bare__item o-list-bare-level-3 o-ellipsis"><a href="#buildDir" class="u-link-uniform">buildDir</a></li><li class="o-list-bare__item o-list-bare-level-3 o-ellipsis"><a href="#generationDir" class="u-link-uniform">generationDir</a></li><li class="o-list-bare__item o-list-bare-level-3 o-ellipsis"><a href="#config" class="u-link-uniform">config</a></li><li class="o-list-bare__item o-list-bare-level-3 o-ellipsis"><a href="#versions-3rd-party-libraries" class="u-link-uniform">versions (3rd-party libraries)</a></li><li class="o-list-bare__item o-list-bare-level-3 o-ellipsis"><a href="#plugins" class="u-link-uniform">plugins</a></li><li class="o-list-bare__item o-list-bare-level-3 o-ellipsis"><a href="#options" class="u-link-uniform">options</a></li></ol></li><li class="o-list-bare__item o-list-bare-level-2 o-ellipsis"><a href="#Configuring-Embark’s-reset-command" class="u-link-uniform">Configuring Embark’s reset command</a></li></ol> 846 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