To access OpenCalais for entity recognition, you’ll need an API key, and some text to check:<\/p>\n
\nlet inputData = `\nProfessor Sir Richard Evans FBA is Provost of Gresham College and \nthe President of Wolfson College, Cambridge. He was Regius Professor \nof History at the University of Cambridge from 2008 until his retirement \nin September 2014. He is a world-renowned historian and academic, with \nmany of his books now acknowledged as seminal works in the field of \nmodern history.`;\n\nlet token = 'insert token here';\n<\/pre>\nThis requires the Node HTTPs library as a dependency (there are a couple unmaintained wrappers around OpenCalais for Node, but I found none of them work).<\/p>\n
\nlet https = require('https');\n<\/pre>\nOnce you do this, you just need to drop in all the parameters you need, and run a typical Node HTTP request:<\/p>\n
\nconst options = {\n host: \"api.thomsonreuters.com\",\n port: \"443\",\n path: \"\/permid\/calais\",\n method: \"POST\",\n headers: {\n \"Content-Type\": \"text\/raw\",\n \"OutputFormat\": \"application\/json\",\n \"X-AG-Access-Token\": token,\n \"Content-Length\": new Buffer(inputData).length\n }\n};\n\nconst req = https.request(options, \n (res) => {\n let resultData = \"\";\n res.on(\"data\", (d) => {\n resultData += d;\n });\n\n res.on(\"end\", () => {\n console.log(\n JSON.stringify(\n JSON.parse(resultData), \n null, \n 2));\n });\n }\n);\n\nreq.write(inputData);\nreq.end();\n<\/pre>\nOnce you do this, you’ll get a ton of detail (on first glance, this seems much more detailed than AlchemyAPI):<\/p>\n
\n },\n \"http:\/\/d.opencalais.com\/genericHasher-1\/8ab44b93-7601-3ce8-8b45-1bc2fa919150\": {\n \"_typeGroup\": \"relations\",\n \"_type\": \"Trial\",\n \"forenduserdisplay\": \"false\",\n \"_typeReference\": \"http:\/\/s.opencalais.com\/1\/type\/em\/r\/Trial\",\n \"person\": \"http:\/\/d.opencalais.com\/pershash-1\/9af3227d-8f35-3529-8222-cc89ff24185a\",\n \"instances\": [\n {\n \"detection\": \"[About Hitler: The Holocaust, History, and the ]David Irving Trial[ (2002), In Defe\nnce of History (1997), Rituals of]\",\n \"prefix\": \"About Hitler: The Holocaust, History, and the \",\n \"exact\": \"David Irving Trial\",\n \"suffix\": \" (2002), In Defence of History (1997), Rituals of\",\n \"offset\": 1742,\n \"length\": 18\n }\n ]\n },\n<\/pre>\n","protected":false},"excerpt":{"rendered":"Accessing OpenCalais from Node.js<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[4],"tags":[385,388,406],"aioseo_notices":[],"amp_enabled":true,"_links":{"self":[{"href":"https:\/\/www.garysieling.com\/blog\/wp-json\/wp\/v2\/posts\/4812"}],"collection":[{"href":"https:\/\/www.garysieling.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.garysieling.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.garysieling.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.garysieling.com\/blog\/wp-json\/wp\/v2\/comments?post=4812"}],"version-history":[{"count":0,"href":"https:\/\/www.garysieling.com\/blog\/wp-json\/wp\/v2\/posts\/4812\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.garysieling.com\/blog\/wp-json\/wp\/v2\/media?parent=4812"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.garysieling.com\/blog\/wp-json\/wp\/v2\/categories?post=4812"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.garysieling.com\/blog\/wp-json\/wp\/v2\/tags?post=4812"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}