{"id":6470,"date":"2026-08-01T17:39:30","date_gmt":"2026-08-01T15:39:30","guid":{"rendered":"https:\/\/www.hostx.ro\/kb\/"},"modified":"2026-08-01T17:39:53","modified_gmt":"2026-08-01T15:39:53","password":"","slug":"expresii-si-transferul-datelor-intre-noduri-in-n8n","status":"publish","type":"docs","link":"https:\/\/www.hostx.ro\/kb\/expresii-si-transferul-datelor-intre-noduri-in-n8n\/","title":{"rendered":"Expresii \u0219i transferul datelor \u00eentre noduri \u00een n8n"},"content":{"rendered":"<p>Puterea real\u0103 a n8n st\u0103 \u00een modul \u00een care <strong>datele circul\u0103 \u00eentre noduri<\/strong>. Fiecare nod prime\u0219te la intrare rezultatul nodului anterior \u0219i \u00eel poate folosi prin <strong>expresii<\/strong>. Iat\u0103 cum func\u021bioneaz\u0103.<\/p>\n<h2>Structura datelor<\/h2>\n<p>n8n lucreaz\u0103 cu <strong>elemente (items)<\/strong>, fiecare av\u00e2nd, de obicei, un obiect <code>json<\/code>. Dac\u0103 un nod returneaz\u0103 10 r\u00e2nduri, nodul urm\u0103tor ruleaz\u0103, implicit, o dat\u0103 pentru fiecare r\u00e2nd. Acest model \u201eper item&#8221; este esen\u021bial de \u00een\u021beles.<\/p>\n<h2>Ce este o expresie<\/h2>\n<p>O expresie este o mic\u0103 formul\u0103 \u00eentre acolade duble care se evalueaz\u0103 \u00een timpul rul\u0103rii. Cea mai frecvent\u0103 form\u0103 refer\u0103 un c\u00e2mp din datele curente:<\/p>\n<pre><code>{{ $json.email }}\r\n{{ $json.client.nume }}<\/code><\/pre>\n<h2>Referirea altor noduri<\/h2>\n<p>Po\u021bi lua date direct dintr-un nod anume, nu doar din cel imediat anterior:<\/p>\n<pre><code>{{ $node[\"HTTP Request\"].json.total }}<\/code><\/pre>\n<p>Exist\u0103 \u0219i variabile utile precum <code>{{ $now }}<\/code> (data curent\u0103) sau <code>{{ $itemIndex }}<\/code> (indicele elementului).<\/p>\n<h2>Transformarea datelor<\/h2>\n<p>Pentru opera\u021biuni mai complexe folose\u0219ti noduri dedicate:<\/p>\n<ul>\n<li><strong>Edit Fields (Set)<\/strong> \u2014 creeaz\u0103 sau redenume\u0219te c\u00e2mpuri.<\/li>\n<li><strong>Code<\/strong> \u2014 scrii JavaScript (sau Python) ca s\u0103 prelucrezi elementele liber.<\/li>\n<li><strong>Filter \/ IF \/ Switch<\/strong> \u2014 direc\u021bioneaz\u0103 datele pe ramuri diferite \u00een func\u021bie de condi\u021bii.<\/li>\n<li><strong>Merge<\/strong> \u2014 combin\u0103 date din dou\u0103 ramuri.<\/li>\n<\/ul>\n<h2>Cum construie\u0219ti simplu o expresie<\/h2>\n<p>\u00cen orice c\u00e2mp, comut\u0103 pe modul <strong>Expression<\/strong>. n8n \u00ee\u021bi arat\u0103, \u00een st\u00e2nga, arborele de date disponibile din nodurile anterioare; po\u021bi da click pe un c\u00e2mp \u0219i el se insereaz\u0103 automat \u00een expresie. Panoul de previzualizare \u00ee\u021bi arat\u0103 valoarea rezultat\u0103 \u00eenainte s\u0103 rulezi.<\/p>\n<div class=\"note\">\n<p><strong>Sfat:<\/strong> Dac\u0103 o expresie afi\u0219eaz\u0103 \u201eundefined&#8221;, cel mai probabil calea c\u0103tre c\u00e2mp este gre\u0219it\u0103 sau nodul surs\u0103 nu a rulat \u00eenc\u0103. Ruleaz\u0103 \u00eent\u00e2i nodul care produce datele.<\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Puterea real\u0103 a n8n st\u0103 \u00een modul \u00een care datele circul\u0103 \u00eentre noduri. Fiecare nod prime\u0219te la intrare rezultatul nodului anterior \u0219i \u00eel poate folosi prin expresii. Iat\u0103 cum func\u021bioneaz\u0103. Structura datelor n8n lucreaz\u0103 cu elemente (items), fiecare av\u00e2nd, de obicei, un obiect json. Dac\u0103 un nod returneaz\u0103 10 r\u00e2nduri, nodul urm\u0103tor ruleaz\u0103, implicit, o &#8230; <a title=\"Expresii \u0219i transferul datelor \u00eentre noduri \u00een n8n\" class=\"read-more\" href=\"https:\/\/www.hostx.ro\/kb\/expresii-si-transferul-datelor-intre-noduri-in-n8n\/\" aria-label=\"Cite\u0219te mai multe despre Expresii \u0219i transferul datelor \u00eentre noduri \u00een n8n\">Cite\u0219te mai mult<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","template":"","meta":{"inline_featured_image":false,"whmcs_kb_id":0,"footnotes":""},"doc_category":[221],"doc_tag":[262,364,363,338,243,495],"class_list":["post-6470","docs","type-docs","status-publish","hentry","doc_category-n8n","doc_tag-api","doc_tag-automatizare","doc_tag-debugging","doc_tag-documentatie","doc_tag-linia-de-comanda","doc_tag-n8n"],"year_month":"2026-08","word_count":282,"total_views":"3","reactions":{"happy":"0","normal":"0","sad":"0"},"author_info":{"name":"benyhill","author_nicename":"benyhill","author_url":"https:\/\/www.hostx.ro\/kb\/author\/benyhill\/"},"doc_category_info":[{"term_name":"n8n","term_url":"https:\/\/www.hostx.ro\/kb\/docs-category\/n8n\/"}],"doc_tag_info":[{"term_name":"API","term_url":"https:\/\/www.hostx.ro\/kb\/docs-tag\/api\/"},{"term_name":"automatizare","term_url":"https:\/\/www.hostx.ro\/kb\/docs-tag\/automatizare\/"},{"term_name":"debugging","term_url":"https:\/\/www.hostx.ro\/kb\/docs-tag\/debugging\/"},{"term_name":"documenta\u021bie","term_url":"https:\/\/www.hostx.ro\/kb\/docs-tag\/documentatie\/"},{"term_name":"linia de comand\u0103","term_url":"https:\/\/www.hostx.ro\/kb\/docs-tag\/linia-de-comanda\/"},{"term_name":"n8n","term_url":"https:\/\/www.hostx.ro\/kb\/docs-tag\/n8n\/"}],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.0 - 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