{"id":30639,"date":"2019-10-31T21:36:39","date_gmt":"2019-10-31T18:36:39","guid":{"rendered":"https:\/\/prohoster.info\/blog\/waveskit-php-frejmvork-dlya-raboty-s-blokchejnom-waves\/"},"modified":"2019-10-31T21:36:39","modified_gmt":"2019-10-31T18:36:39","slug":"waveskit-php-frejmvork-dlya-raboty-s-blokchejnom-waves","status":"publish","type":"post","link":"https:\/\/prohoster.info\/it\/blog\/administrirovanie\/waveskit-php-frejmvork-dlya-raboty-s-blokchejnom-waves","title":{"rendered":"WavesKit \u00e8 un framework PHP per lavorare con la blockchain Waves.","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Mi piace <noindex><a rel=\"nofollow\" href=\"https:\/\/en.wikipedia.org\/wiki\/PHP\">PHP<\/a><\/noindex> per la velocit\u00e0 di sviluppo e l'ottima portabilit\u00e0. \u00c8 davvero utile avere sempre a disposizione uno strumento pronto per risolvere i problemi.<\/p>\n<p><\/p>\n<p>\u00c8 stato piuttosto deludente quando, durante l'incontro con il blockchain nazionale <noindex><a rel=\"nofollow\" href=\"https:\/\/wavesplatform.com\">Waves Platform<\/a><\/noindex> non avevo un SDK pronto per PHP. Dovetti scriverlo.<\/p>\n<p><noindex><a rel=\"nofollow\" name=\"habracut\"><\/a><\/noindex><\/p>\n<p>Inizialmente dovevo usare <noindex><a rel=\"nofollow\" href=\"https:\/\/docs.wavesplatform.com\/en\/waves-full-node\/what-is-a-full-node.html\">(nodes). La configurazione per i nodi \u00e8 scritta<\/a><\/noindex> per firmare le transazioni. Cos\u00ec, per gestire tre indirizzi, dovevo avviare tre nodi... Era uno spettacolo deplorevole, anche se risolveva alcuni problemi. Fino a quando non ho capito che fare affidamento sui nodi era un vicolo cieco. In primo luogo, a causa delle limitazioni funzionali <noindex><a rel=\"nofollow\" href=\"https:\/\/docs.wavesplatform.com\/en\/waves-api-and-sdk\/waves-node-rest-api.html\">API<\/a><\/noindex>, in secondo luogo, a causa della velocit\u00e0 (ai tempi i nodi erano molto lenti).<\/p>\n<p><\/p>\n<p>Ho iniziato due lavori paralleli. Uno era creare un esploratore blockchain che fosse veloce e completamente indipendente dalle API dei nodi. L'altro era raccogliere tutte le funzioni per lavorare con Waves Platform in un unico posto. Cos\u00ec sono nati i progetti <noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/deemru\/w8io\">w8io<\/a><\/noindex> e <noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/deemru\/WavesKit\">WavesKit<\/a><\/noindex>.<\/p>\n<p><\/p>\n<p>Il primo passo dietro le quinte del blockchain di Waves \u00e8 stato <noindex><a rel=\"nofollow\" href=\"https:\/\/w8io.ru\">l'esploratore w8io<\/a><\/noindex>. Non \u00e8 stato semplice, ma alla fine sono riuscito a scrivere un calcolo indipendente di tutti i saldi e persino a trovare un errore nei calcoli sui nodi originali (<noindex><a rel=\"nofollow\" href=\"https:\/\/forum.wavesplatform.com\/t\/bug-bounty-program\/1127\">programma bug-bounty<\/a><\/noindex> tra l'altro, funziona, pagano per gli errori trovati). Puoi approfondire il funzionamento del browser w8io in questo thread: <noindex><a rel=\"nofollow\" href=\"https:\/\/forum.wavesplatform.com\/t\/w8io-waves-explorer-based-on-php-sqlite\">https:\/\/forum.wavesplatform.com\/t\/w8io-waves-explorer-based-on-php-sqlite<\/a><\/noindex><\/p>\n<p><\/p>\n<p>Durante il lavoro su w8io ho avuto gi\u00e0 dei dubbi, ma quando il lavoro \u00e8 giunto a una conclusione logica e ho iniziato a creare l'SDK, i dubbi si sono confermati. Non sono riuscito a trovare alcune funzioni, incluse le pi\u00f9 importanti, quelle crittografiche. Cos\u00ec ho iniziato a creare i miei mattoni per le fondamenta. E cos\u00ec sono nati: <noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/deemru\/ABCode\">ABCode<\/a><\/noindex> per la codifica in base58 (in realt\u00e0 per codificare qualsiasi alfabeto in qualsiasi), <noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/deemru\/Curve25519\">Curve25519<\/a><\/noindex> per creare e verificare firme compatibili (con varianti <noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/deemru\/Curve25519\/blob\/0ba56fa566f4a29b06126465b9ebbe59c915ffbd\/src\/Curve25519.php#L104\">potenziate<\/a><\/noindex>), <noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/deemru\/Blake2b\">Blake2b<\/a><\/noindex> per calcolare uno degli hash (che era disponibile solo a partire da PHP 7.2) e cos\u00ec via.<\/p>\n<p><\/p>\n<p>Qui devo ringraziare <noindex><a rel=\"nofollow\" href=\"https:\/\/twitter.com\/ikardanoff\">Inal Kardanova<\/a><\/noindex> per alcuni preziosi consigli che mi hanno indirizzato verso <noindex><a rel=\"nofollow\" href=\"https:\/\/en.wikipedia.org\/wiki\/Composer_(software)\">composer<\/a><\/noindex> invece dei file include a cui ero abituato, ma obsoleti.<\/p>\n<p><\/p>\n<p>Dopo qualche mese <noindex>WavesKit ha visto la luce<\/noindex>, \u00e8 uscito dalla <noindex><a rel=\"nofollow\" href=\"https:\/\/twitter.com\/ikardanoff\/status\/1091241637706190848\">beta versione<\/a><\/noindex> ed \u00e8 ora pronto per lavorare con tutta la funzionalit\u00e0 standard della piattaforma Waves. Tutte le disponibili nella <noindex><a rel=\"nofollow\" href=\"https:\/\/docs.wavesplatform.com\/en\/waves-environment\/waves-mainnet.html\">rete principale<\/a><\/noindex> Le transazioni possono essere facilmente create, firmate e inviate utilizzando un unico pacchetto, compatibile con tutte le versioni a 64 bit di PHP dalla 5.6 in poi.<\/p>\n<p><\/p>\n<p>Colleghiamo WavesKit al nostro progetto:<\/p>\n<p><\/p>\n<pre><code class=\"php\">composer require deemru\/waveskit<\/code><\/pre>\n<p><\/p>\n<p>Utilizziamo:<\/p>\n<p><\/p>\n<pre><code class=\"php\">use deemruWavesKit;\n$wk = new WavesKit( 'T' );\n$wk-&gt;setSeed( 'manage manual recall harvest series desert melt police rose hollow moral pledge kitten position add' );\n$tx = $wk-&gt;txBroadcast( $wk-&gt;txSign( $wk-&gt;txTransfer( 'test', 1 ) ) );\n$tx = $wk-&gt;ensure( $tx );<\/code><\/pre>\n<p><\/p>\n<p>Nell'esempio sopra, creiamo un oggetto WavesKit, che opera nella rete di test &#171;T&#187;. Impostiamo la frase seed, da cui vengono calcolati automaticamente le chiavi e l'indirizzo dell'account basato sulla chiave pubblica. Successivamente, creiamo una transazione di trasferimento di 0.00000001 Waves dall'indirizzo calcolato automaticamente dalla frase seed all'indirizzo alias &#171;test&#187;, la firmiamo con la chiave privata e la inviamo nella rete. Dopo di che, ci assicuriamo che la transazione sia stata confermata con successo dalla rete.<\/p>\n<p><\/p>\n<p>Il lavoro con le transazioni \u00e8 concentrato nelle <noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/deemru\/WavesKit\/blob\/master\/docs\/WavesKit.md#waveskittxaddressscript\">funzioni che iniziano con tx<\/a><\/noindex>. Per una migliore comprensione del lavoro con le transazioni, puoi consultare la <noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/deemru\/WavesKit\/blob\/master\/docs\/WavesKit.md\">documentazione di WavesKit<\/a><\/noindex> o passare direttamente ad esempi pratici nei <noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/deemru\/WavesKit\/blob\/2c4937199c88bc4ae105f60657b1389482471c1f\/test\/selftest.php#L237\">test di integrazione continua<\/a><\/noindex>.<\/p>\n<p><\/p>\n<p>Poich\u00e9 WavesKit si \u00e8 sviluppato in un ambiente di utilizzo reale, ha gi\u00e0 acquisito funzionalit\u00e0 avanzate. La prima killer feature \u00e8 <noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/deemru\/WavesKit\/blob\/master\/docs\/WavesKit.md#waveskitensure\">la funzione ensure<\/a><\/noindex>, che controlla il raggiungimento del livello di fiducia richiesto, garantendo che la transazione non si sia persa, ma anzi, sia stata confermata e abbia raggiunto il numero necessario di conferme nella rete.<\/p>\n<p><\/p>\n<p>Un altro meccanismo a prova di proiettile \u00e8 il modo in cui WavesKit comunica con i nodi. In condizioni controllate, il framework lavora solo con il nodo principale, mantenendo una connessione costante con esso, ma in caso di errori pu\u00f2 automaticamente passare a nodi di riserva. Se stai configurando un insieme di nodi di riserva, puoi chiamare la funzione <noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/deemru\/WavesKit\/blob\/master\/docs\/WavesKit.md#waveskitsetbestnode\">setBestNode<\/a><\/noindex> per determinare il miglior nodo come principale, in base al valore massimo dell'attuale altezza e velocit\u00e0 di risposta. Ora aggiungi a questo una cache interna delle richieste e sentirai la cura sia per gli utenti che per i proprietari dei nodi.<\/p>\n<p><\/p>\n<p>Uno degli ultimi meccanismi avanzati \u00e8 la funzione <noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/deemru\/WavesKit\/blob\/master\/docs\/WavesKit.md#waveskittxmonitor\">txMonitor<\/a><\/noindex>. \u00c8 emersa dalla necessit\u00e0 di rispondere alle transazioni in tempo reale. Questa funzione risolve completamente tutte le questioni legate all'elaborazione delle transazioni nella blockchain. Niente pi\u00f9 problemi, basta impostare la propria funzione di callback con le opzioni desiderate e attendere le nuove transazioni che attiveranno i vostri processi. Ad esempio, un altro mio progetto <noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/deemru\/VECRO\">VECRO<\/a><\/noindex> \u00e8 completamente costruito attorno a questa funzione, puoi facilmente esplorare come funziona direttamente <noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/deemru\/VECRO\/blob\/85d8373de56baff7c05697475211633b521bca7d\/src\/VECRO.php#L80\">nel codice del progetto<\/a><\/noindex>.<\/p>\n<p><\/p>\n<p>Mi piace l'open source, \u00e8 una delle pi\u00f9 grandi conquiste dell'umanit\u00e0. Essendo io l'unico sviluppatore e avendo raggiunto uno stato in cui tutte le mie necessit\u00e0 sono soddisfatte, vi invito a utilizzare e contribuire a <noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/deemru\/WavesKit\">WavesKit<\/a><\/noindex>.<\/p>\n<p>Fonte: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/habr.com\/ru\/post\/446110\/\">habr.com<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u041c\u043d\u0435 \u043d\u0440\u0430\u0432\u0438\u0442\u0441\u044f PHP \u0437\u0430 \u0441\u043a\u043e\u0440\u043e\u0441\u0442\u044c \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u043a\u0438 \u0438 \u043e\u0442\u043b\u0438\u0447\u043d\u0443\u044e \u043f\u0435\u0440\u0435\u043d\u043e\u0441\u0438\u043c\u043e\u0441\u0442\u044c. \u042d\u0442\u043e \u043e\u0447\u0435\u043d\u044c \u0445\u043e\u0440\u043e\u0448\u043e, \u043a\u043e\u0433\u0434\u0430 \u0432 \u043a\u0430\u0440\u043c\u0430\u043d\u0435 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\u043d\u0430\u043f\u0438\u0441\u0430\u0442\u044c. \u041f\u043e\u043d\u0430\u0447\u0430\u043b\u0443 \u043f\u0440\u0438\u0445\u043e\u0434\u0438\u043b\u043e\u0441\u044c \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u044c \u043d\u043e\u0434\u044b \u0434\u043b\u044f \u043f\u043e\u0434\u043f\u0438\u0441\u0438 \u0442\u0440\u0430\u043d\u0437\u0430\u043a\u0446\u0438\u0439. \u0422\u0430\u043a, [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[688],"tags":[],"class_list":["post-30639","post","type-post","status-publish","format-standard","hentry","category-administrirovanie"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.0.1 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u041c\u043d\u0435 \u043d\u0440\u0430\u0432\u0438\u0442\u0441\u044f PHP 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