{"templateId":"markdown","sharedDataIds":{"sidebar":"sidebar-docs/email-api/template_language/sidebars.yaml"},"props":{"metadata":{"markdoc":{"tagList":["tabs","tab"]},"type":"markdown"},"seo":{"title":"Using templates with Send API","siteUrl":"https://dev.mailjet.com/","projectTitle":"Mailjet Developer Documentation","description":"Include Mailjet template language inline in TextPart or HtmlPart, or reference a stored template via TemplateID with TemplateLanguage true.","image":"https://dev.mailjet.com/og-image.png","lang":"en-US","keywords":["Mailjet API","Email API","Content API","SMTP Relay","transactional email","email delivery","Send API","email templates","developer documentation"],"meta":[{"name":"og:type","content":"website"},{"name":"og:site_name","content":"Mailjet Developer Documentation"},{"name":"twitter:card","content":"summary_large_image"},{"name":"robots","content":"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1"},{"name":"googlebot","content":"index, follow, max-snippet:-1, max-image-preview:large"}],"jsonLd":{"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://dev.mailjet.com/#organization","name":"Mailjet","alternateName":"Sinch Mailjet","url":"https://www.mailjet.com","logo":"https://assets.mailjet.com/lib/images/mailjetLogo/mj_logo_with_text_color.png","parentOrganization":{"@type":"Organization","name":"Sinch","url":"https://www.sinch.com"}},{"@type":"WebSite","@id":"https://dev.mailjet.com/#website","name":"Mailjet Developer Documentation","description":"Official developer documentation for the Mailjet Email API, Content API and SMTP Relay.","url":"https://dev.mailjet.com/","inLanguage":"en-US","publisher":{"@id":"https://dev.mailjet.com/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://dev.mailjet.com/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]},"llmstxt":{"hide":false,"title":"Mailjet Developer Documentation","description":"Developer documentation for the Mailjet Email API, Content API and SMTP Relay - guides, API references and code samples for sending, templating and tracking email at scale.","details":{"content":"Mailjet (part of Sinch) provides APIs for sending and managing email.\n\nThis documentation covers four main areas:\n\n- **Email API** - the Send API (v3 and v3.1) for transactional and marketing email,\n  plus contact management, segmentation, campaigns, statistics, webhooks, the Parse API\n  and the Mailjet Templating Language.\n- **Content API** - programmatic management of email templates, template contents,\n  images, labels and authentication tokens (v1).\n- **SMTP Relay** - sending through Mailjet's SMTP servers, including custom headers.\n- **API Reference** - the complete, generated reference for every endpoint, built directly\n  from the OpenAPI specifications.\n\nBase URL for all REST APIs: `https://api.mailjet.com`.\nAuthentication uses HTTP Basic auth with an API key and secret key.\n\n## Machine-readable entry points\n\nPrefer these when you need the API surface in as few requests as possible:\n\n- `/openapi/openapi-mailjet.md` - the **complete** Email API reference (every endpoint,\n  grouped by resource) as a single Markdown document.\n- `/openapi/openapi-passport.md` - the **complete** Content API reference as a single\n  Markdown document.\n- `/_bundle/openapi/openapi-mailjet.yaml` - the raw, fully bundled OpenAPI 3 description\n  of the Email API.\n- `/_bundle/openapi/openapi-passport.yaml` - the raw, fully bundled OpenAPI 3 description\n  of the Content API.\n- `/sitemap.xml` - every indexable URL on this site.\n\nEvery page on this site is also available as clean Markdown by appending `.md` to its URL."},"sections":[{"title":"Email API","description":"Sending, contacts, campaigns, statistics, webhooks and templating.","includeFiles":["docs/email-api/**/*.md"],"excludeFiles":[]},{"title":"Content API","description":"Manage templates, template contents, images, labels and tokens.","includeFiles":["docs/content-api/**/*.md","docs/content-api.md"],"excludeFiles":[]},{"title":"SMTP Relay","description":"Send email through Mailjet's SMTP servers.","includeFiles":["docs/smtp-relay/**/*.md"],"excludeFiles":[]},{"title":"API Reference","description":"Complete generated reference for every Mailjet API endpoint.","includeFiles":["openapi/openapi-mailjet.yaml","openapi/openapi-passport.yaml","docs/api-reference/**/*.md"],"excludeFiles":[]},{"title":"Migrating from Mandrill","description":"Guides for switching from Mandrill to Mailjet.","includeFiles":["docs/mandrill/**/*.md"],"excludeFiles":[]}],"excludeFiles":[]}},"dynamicMarkdocComponents":[],"compilationErrors":[],"ast":{"$$mdtype":"Tag","name":"article","attributes":{},"children":[{"$$mdtype":"Tag","name":"Heading","attributes":{"level":1,"id":"using-templates-with-send-api","__idx":0},"children":["Using templates with Send API"]},{"$$mdtype":"Tag","name":"p","attributes":{},"children":["Send API, Mailjet Transactional API, allow you to leverage the power of the template language."]},{"$$mdtype":"Tag","name":"p","attributes":{},"children":["The templates and template language can be used in multiple ways with Send API:"]},{"$$mdtype":"Tag","name":"p","attributes":{},"children":["posting on /send resource with message content as TextPart or HtmlPart"," ","saving the content of the message with the /template resource and using it on demand with the TemplateID property of Send API."," ","using templates you created through the Passport User Interface."]},{"$$mdtype":"Tag","name":"Heading","attributes":{"level":1,"id":"send-a-message-containing-template-language","__idx":1},"children":["Send a message containing template language"]},{"$$mdtype":"Tag","name":"p","attributes":{},"children":["You can simply pass in the payload of the call to Send API a text version (",{"$$mdtype":"Tag","name":"code","attributes":{},"children":["TextPart"]}," property) and/or an Html version (",{"$$mdtype":"Tag","name":"code","attributes":{},"children":["HtmlPart"]}," property) containing template language."]},{"$$mdtype":"Tag","name":"Tabs","attributes":{"size":"medium"},"children":[{"$$mdtype":"Tag","name":"TabItemFragment","attributes":{"label":"cURL","disable":false},"children":[{"$$mdtype":"Tag","name":"CodeBlock","attributes":{"data-language":"shell","header":{"controls":{"copy":{}}},"source":"# Create : Create a sub-account with a new Public and Secret API Key. API Keys are used as credentials to access the API and SMTP server.\ncurl -s \\\n\t-X POST \\\n\t--user \"$MJ_APIKEY_PUBLIC:$MJ_APIKEY_PRIVATE\" \\\n\thttps://api.mailjet.com/v3/REST/apikey \\\n\t-H 'Content-Type: application/json' \\\n\t-d '{\n\t\t\"ACL\":,\n\t\t\"IsActive\":\"true\",\n\t\t\"Name\":\"API Key 1\"\n\t}'\n","lang":"shell"},"children":[]}]},{"$$mdtype":"Tag","name":"TabItemFragment","attributes":{"label":"PHP","disable":false},"children":[{"$$mdtype":"Tag","name":"CodeBlock","attributes":{"data-language":"php","header":{"controls":{"copy":{}}},"source":"<?php\n/*\nCreate : Manage your Mailjet API Keys. API keys are used as credentials to access the API and SMTP server.\n*/\nrequire 'vendor/autoload.php';\nuse \\Mailjet\\Resources;\n$mj = new \\Mailjet\\Client(getenv('MJ_APIKEY_PUBLIC'), getenv('MJ_APIKEY_PRIVATE'));\n$body = [\n    'Name' => \"MynewKEY\"\n];\n$response = $mj->post(Resources::$Apikey, ['body' => $body]);\n$response->success() && var_dump($response->getData());\n?>\n","lang":"php"},"children":[]}]},{"$$mdtype":"Tag","name":"TabItemFragment","attributes":{"label":"Node.js","disable":false},"children":[{"$$mdtype":"Tag","name":"CodeBlock","attributes":{"data-language":"javascript","header":{"controls":{"copy":{}}},"source":"/**\n *\n * Create : Manage your Mailjet API Keys. API keys are used as credentials to access the API and SMTP server.\n *\n */\nconst mailjet = require('node-mailjet').connect(\n  process.env.MJ_APIKEY_PUBLIC,\n  process.env.MJ_APIKEY_PRIVATE\n)\nconst request = mailjet.post('apikey').request({\n  Name: 'MynewKEY',\n})\nrequest\n  .then(result => {\n    console.log(result.body)\n  })\n  .catch(err => {\n    console.log(err.statusCode)\n  })\n","lang":"javascript"},"children":[]}]},{"$$mdtype":"Tag","name":"TabItemFragment","attributes":{"label":"Ruby","disable":false},"children":[{"$$mdtype":"Tag","name":"CodeBlock","attributes":{"data-language":"ruby","header":{"controls":{"copy":{}}},"source":"# Create : Create a sub-account with a new Public and Secret API Key. API Keys are used as credentials to access the API and SMTP server.\nrequire 'mailjet'\nMailjet.configure do |config|\n  config.api_key = ENV['MJ_APIKEY_PUBLIC']\n  config.secret_key = ENV['MJ_APIKEY_PRIVATE']\nend\nvariable = Mailjet::Apikey.create(acl: \"\",\nis_active: \"true\",\nname: \"API Key 1\"\n)\np variable.attributes['Data']\n","lang":"ruby"},"children":[]}]},{"$$mdtype":"Tag","name":"TabItemFragment","attributes":{"label":"Python","disable":false},"children":[{"$$mdtype":"Tag","name":"CodeBlock","attributes":{"data-language":"python","header":{"controls":{"copy":{}}},"source":"\"\"\"\nCreate : Manage your Mailjet API Keys. API keys are used as credentials to access the API and SMTP server.\n\"\"\"\nfrom mailjet_rest import Client\nimport os\napi_key = os.environ['MJ_APIKEY_PUBLIC']\napi_secret = os.environ['MJ_APIKEY_PRIVATE']\nmailjet = Client(auth=(api_key, api_secret))\ndata = {\n  'Name': 'MynewKEY'\n}\nresult = mailjet.apikey.create(data=data)\nprint result.status_code\nprint result.json()\n","lang":"python"},"children":[]}]},{"$$mdtype":"Tag","name":"TabItemFragment","attributes":{"label":"Java","disable":false},"children":[{"$$mdtype":"Tag","name":"CodeBlock","attributes":{"data-language":"java","header":{"controls":{"copy":{}}},"source":"package com.my.project;\nimport com.mailjet.client.errors.MailjetException;\nimport com.mailjet.client.errors.MailjetSocketTimeoutException;\nimport com.mailjet.client.MailjetClient;\nimport com.mailjet.client.MailjetRequest;\nimport com.mailjet.client.MailjetResponse;\nimport com.mailjet.client.resource.Apikey;\nimport org.json.JSONArray;\nimport org.json.JSONObject;\npublic class MyClass {\n    /**\n     * Create : Manage your Mailjet API Keys. API keys are used as credentials to access the API and SMTP server.\n     */\n    public static void main(String[] args) throws MailjetException, MailjetSocketTimeoutException {\n      MailjetClient client;\n      MailjetRequest request;\n      MailjetResponse response;\n      client = new MailjetClient(System.getenv(\"MJ_APIKEY_PUBLIC\"), System.getenv(\"MJ_APIKEY_PRIVATE\"));\n      request = new MailjetRequest(Apikey.resource)\n\t\t\t.property(Apikey.NAME, \"MynewKEY\");\n      response = client.post(request);\n      System.out.println(response.getStatus());\n      System.out.println(response.getData());\n    }\n}\n","lang":"java"},"children":[]}]},{"$$mdtype":"Tag","name":"TabItemFragment","attributes":{"label":"Go","disable":false},"children":[{"$$mdtype":"Tag","name":"CodeBlock","attributes":{"data-language":"go","header":{"controls":{"copy":{}}},"source":"/*\nCreate : Manage your Mailjet API Keys. API keys are used as credentials to access the API and SMTP server.\n*/\npackage main\nimport (\n\t\"fmt\"\n\t\"log\"\n\t\"os\"\n\tmailjet \"github.com/mailjet/mailjet-apiv3-go\"\n\t\"github.com/mailjet/mailjet-apiv3-go/resources\"\n)\nfunc main () {\n\tmailjetClient := NewMailjetClient(os.Getenv(\"MJ_APIKEY_PUBLIC\"), os.Getenv(\"MJ_APIKEY_PRIVATE\"))\n\tvar data []resources.Apikey\n\tmr := &Request{\n\t  Resource: \"apikey\",\n\t}\n\tfmr := &FullRequest{\n\t  Info: mr,\n\t  Payload: &resources.Apikey {\n      Name: \"MynewKEY\",\n    },\n\t}\n\terr := mailjetClient.Post(fmr, &data)\n\tif err != nil {\n\t  fmt.Println(err)\n\t}\n\tfmt.Printf(\"Data array: %+v\\n\", data)\n}\n","lang":"go"},"children":[]}]},{"$$mdtype":"Tag","name":"TabItemFragment","attributes":{"label":"C#","disable":false},"children":[{"$$mdtype":"Tag","name":"CodeBlock","attributes":{"data-language":"csharp","header":{"controls":{"copy":{}}},"source":"using Mailjet.Client;\nusing Mailjet.Client.Resources;\nusing System;\nusing Newtonsoft.Json.Linq;\nnamespace Mailjet.ConsoleApplication\n{\n   class Program\n   {\n      /// <summary>\n      /// Create : Manage your Mailjet API Keys. API keys are used as credentials to access the API and SMTP server.\n      /// </summary>\n      static void Main(string[] args)\n      {\n         RunAsync().Wait();\n      }\n      static async Task RunAsync()\n      {\n         MailjetClient client = new MailjetClient(Environment.GetEnvironmentVariable(\"MJ_APIKEY_PUBLIC\"), Environment.GetEnvironmentVariable(\"MJ_APIKEY_PRIVATE\"));\n         MailjetRequest request = new MailjetRequest\n         {\n            Resource = Apikey.Resource,\n         }\n            .Property(Apikey.Name, \"MynewKEY\");\n         MailjetResponse response = await client.PostAsync(request);\n         if (response.IsSuccessStatusCode)\n         {\n            Console.WriteLine(string.Format(\"Total: {0}, Count: {1}\\n\", response.GetTotal(), response.GetCount()));\n            Console.WriteLine(response.GetData());\n         }\n         else\n         {\n            Console.WriteLine(string.Format(\"StatusCode: {0}\\n\", response.StatusCode));\n            Console.WriteLine(string.Format(\"ErrorInfo: {0}\\n\", response.GetErrorInfo()));\n            Console.WriteLine(response.GetData());\n            Console.WriteLine(string.Format(\"ErrorMessage: {0}\\n\", response.GetErrorMessage()));\n         }\n      }\n   }\n}\n","lang":"csharp"},"children":[]}]}]}]},"headings":[{"value":"Using templates with Send API","id":"using-templates-with-send-api","depth":1},{"value":"Send a message containing template language","id":"send-a-message-containing-template-language","depth":1}],"frontmatter":{"title":"Templating Language Use Case","seo":{"description":"Include Mailjet template language inline in TextPart or HtmlPart, or reference a stored template via TemplateID with TemplateLanguage true.","title":"Using templates with Send API"}},"lastModified":"2026-08-26T10:53:57.000Z","pagePropGetterError":{"message":"","name":""}},"slug":"/docs/email-api/template_language/using-template-with-send-api/send_message_temp_lang","userData":{"isAuthenticated":false,"teams":["anonymous"]},"isPublic":true}