From 90e935af6e2de9999cd714063d20f81705e09aaa Mon Sep 17 00:00:00 2001
From: xethyrion <xethyrion@gmail.com>
Date: Thu, 24 Nov 2016 20:07:19 +0200
Subject: [PATCH] Add files via upload

---
 ipld_tut.c | 89 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 89 insertions(+)
 create mode 100644 ipld_tut.c

diff --git a/ipld_tut.c b/ipld_tut.c
new file mode 100644
index 0000000..969b3d8
--- /dev/null
+++ b/ipld_tut.c
@@ -0,0 +1,89 @@
+#include "ipld.h"
+int main()
+{
+	//TURN DEBUG MODE ON/OFF
+	NODE_H_DEBUG = 0;
+	
+	//Load a node from string:
+	char * str = "{\"@context\": \"/ipfs/Qmf1ec6n9f8kW8JTLjqaZceJVpDpZD4L3aPoJFvssBE7Eb/merkleweb\", \"@type\": \"node\", \"FIELD1\": { \"@value\": \"Qmabcbcbdba\", \"@type\": \"mlink\" }, \"FIELD2\": { \"@value\": \"Qmabcbcbdba2\", \"@type\": \"mlink\" } }";
+	struct NODE A;
+	A = LOAD_NODE(str);
+	
+	//Get node contents back to a string:
+	char * lol;
+	lol = json_dumps(A.obj, JSON_INDENT(1) | JSON_PRESERVE_ORDER);
+	printf("NODE CONTENTS: \n------------\n%s\n------------\n", lol);
+	free(lol); // Never forget to free the char * after being done with it.
+
+	//Get type of node, if any.
+	char typeget[1000];   //Way bigger than needed.
+	bzero(typeget,1000);  //No mem errors ofc.
+	nType(typeget, A.obj);//Check for type if any
+	printf("type: %s\n", typeget);
+	
+	//Get context of node.
+	char ctxget[1000];    //Way bigger than needed
+	bzero(ctxget, 1000);
+	nContext(ctxget, A.obj);
+	printf("ctx: %s\n", ctxget);
+
+	//Extracting Links
+	char * links[666];
+	for(int i=0;i<666;i++){ links[i] = NULL;}
+	size_t linknum;
+	linknum = nLinks(links, A.obj); //These all need to be freed, hence the linknum!
+	printf("Linknum: %lu\n", linknum);
+	for(int i=0; i<linknum; i++)
+	{
+		printf("AT %d %s\n",i,links[i]);
+	}
+	
+	//Store links in an more accessible version:
+	struct LINK L;
+	L = LOAD_LINK(links[0]);
+	
+	//By now you already have easy access to everything, the key name, the hash, the b58 decoded hash, the type.
+	//It will reject any links which aren't of type "mlink", you should check this by seeing if it returns valid or not.
+	char * linkstr;
+	linkstr = json_dumps(L.obj, JSON_INDENT(1) | JSON_PRESERVE_ORDER);
+	printf("LINK CONTENTS: \n------------\n%s\n------------\n", linkstr);
+	free(linkstr);
+	//Access Name
+	printf("LINK NAME: %s\n", L.name);
+	
+	//Access Type
+	printf("LINK TYPE: %s\n", L.type);
+	
+	//Access Hash
+	printf("LINK HASH: %s\n", L.hash);
+	
+	//Access b58Hash
+	
+	//Free all nodes, links, link pointer array
+	for(int i=0; i<linknum;i++){free(links[i]);} //FREE(Link char pointer array)
+	UNLOAD_LINK(L); // FREE LINK STRUCTURE
+	UNLOAD_NODE(A); // FREE NODE STRUCTURE // You could've done this earlier as soon as you didn't need any more.
+	
+	return 0;
+}
+/*
+	json_t * obj;
+	const char * str = "{\"FIELD1\": { \"@value\": \"Qmabcbcbdba\", \"@type\": \"mlink\" }, \"FIELD2\": { \"@value\": \"Qmabcbcbdba2\", \"@type\": \"mlink\" } }";
+    json_error_t error;
+	obj = json_loads(str, 0, &error);
+	char * lol;
+	lol = json_dumps(obj, JSON_INDENT(1));
+	printf("LOL: %s", lol);
+	free(lol);
+	json_decref(obj);
+	//WORKING FOREACH
+		const char *key;
+	json_t * value;
+	json_object_foreach(A.obj, key, value) 
+	{
+		char * valinchr;
+		valinchr = json_dumps(value, JSON_INDENT(0));
+		printf("KEY: %s\nValue: %s\n", key, valinchr);
+    	free(valinchr);
+	}
+*/
\ No newline at end of file